| 1. |
- Ardern, Clare, et al.
(författare)
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Comparison of patient-reported outcomes among those who chose ACL reconstruction or non-surgical treatment.
- 2017
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Ingår i: Scandinavian Journal of Medicine and Science in Sports. - : Wiley-Blackwell. - 0905-7188 .- 1600-0838. ; 27:5, s. 535-544
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Tidskriftsartikel (refereegranskat)abstract
- The aim of our study was to cross-sectionally compare patient-reported knee function outcomes between people who chose non-surgical treatment for ACL injury and those who chose ACL reconstruction. We extracted Knee Injury and Osteoarthritis Outcome Score (KOOS) and EuroQoL-5D data entered into the Swedish National ACL Registry by patients with a non-surgically treated ACL injury within 180 days of injury (n = 306), 1 (n = 350), 2 (n = 358), and 5 years (n = 114) after injury. These data were compared cross-sectionally to data collected pre-operatively (n = 306) and at 1 (n = 350), 2 (n = 358), and 5 years (n = 114) post-operatively from age- and gender-matched groups of patients with primary ACL reconstruction. At the 1 and 2 year comparisons, patients who chose surgical treatment reported superior quality of life and function in sports (1 year mean difference 12.4 and 13.2 points, respectively; 2 year mean difference 4.5 and 6.9 points, respectively) compared to those who chose non-surgical treatment. Patients who chose ACL reconstruction reported superior outcomes for knee symptoms and function, and in knee-specific and health-related quality of life, compared to patients who chose non-surgical treatment.
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| 2. |
- Filbay, Stephanie R., et al.
(författare)
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The Swedish version of the Anterior Cruciate Ligament Quality Of Life measure (ACL-QOL) : translation and measurement properties
- 2023
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Ingår i: Quality of Life Research. - : Springer. - 0962-9343 .- 1573-2649. ; 32:2, s. 593-604
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Tidskriftsartikel (refereegranskat)abstract
- Purpose To translate the ACL-QOL from English to Swedish and evaluate measurement properties for use after surgical and non-surgical management of anterior cruciate ligament (ACL) injury. Methods The ACL-QOL was translated from English to Swedish and data were pooled from 13 cohorts to enable a comprehensive evaluation of measurement properties in line with COSMIN guidelines. We evaluated internal consistency, test-re-test reliability, measurement error, structural validity [confirmatory factor analysis (CFA)], construct validity and responsiveness (hypothesis testing), and floor/ceiling effects. Results were stratified by time since injury (<= 1.5 years; 2-10 years, 15-25 years; > 30 years) and ACL management strategy [surgical (n = 1163), non-surgical (n = 570)]. Results The Swedish ACL-QOL had sufficient internal consistency (total and domain scores) for use in surgically managed (Cronbachs alpha >= 0.744) and non-surgically managed (>= 0.770) ACL-injured individuals at all time-points. Test-re-test reliability was sufficient [intraclass correlation coefficients: all domains > 0.80, total score 0.93 (95% CI 0.86-0.96)]. The standard error of measurement was 5.6 for the total score and ranged from 7.0 to 10.3 for each domain. CFA indicated sufficient SRMR values when using the total score or five domains; however, CFI and RMSEA values did not meet cut-offs for good model fit. Hypothesis testing indicated sufficient construct validity and responsiveness. Floor effects were negligible and ceiling effects were negligible or minor. Conclusion The Swedish version of the ACL-QOL has sufficient internal consistency, test-re-test reliability, construct validity and responsiveness, for use in people with ACL injury managed with or without ACL surgery. Model fit could be improved and investigation into the source of misfit is warranted.
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| 3. |
- Gauffin, Håkan, et al.
(författare)
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Knee Arthroscopic Surgery in Middle-Aged Patients With Meniscal Symptoms A 3-Year Follow-up of a Prospective, Randomized Study
- 2017
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Ingår i: American Journal of Sports Medicine. - : SAGE PUBLICATIONS INC. - 0363-5465 .- 1552-3365. ; 45:9, s. 2077-2084
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Tidskriftsartikel (refereegranskat)abstract
- Background: The optimal treatment for middle-aged patients with knee pain and meniscal lesions has been extensively debated. Most previous studies have revealed only short-term beneficial results of knee arthroscopic surgery. The authors have previously shown a positive benefit of knee arthroscopic surgery and an exercise program after 1 year when compared with an exercise program alone. Purpose: To evaluate if knee arthroscopic surgery combined with an exercise program provided an additional long-term benefit after 3 years compared with an exercise program alone in middle-aged patients with meniscal symptoms. Study Design: Randomized controlled trial; Level of evidence, 1. Methods: Of 179 eligible patients, aged 45 to 64 years, 150 were randomized to (1) a 3-month exercise program (nonsurgery group) or (2) the same as group 1 plus knee arthroscopic surgery within 4 weeks (surgery group). The primary outcome was the change in the Knee Injury and Osteoarthritis Outcome Score (KOOS) subscore of pain between baseline and the 3-year follow-up. Results from the 1-year follow-up have been published previously. Results: Both treatment groups improved significantly in the KOOS pain subscore at 3 years follow-up in the intention-to-treat and as-treated analyses (P amp;lt; .001). The between-group difference for the change in the KOOS pain subscore between baseline and the 3-year follow-up was no longer statistically significant, neither in the intention-to-treat analysis (7.6 points; 95% CI, -0.6 to 15.9; P = .068) nor in the as-treated analysis (5.3 points; 95% CI, -3.1 to 13.8; P = .216). The factorial analysis of the effect of the intervention and age, onset of pain, and mechanical symptoms indicated that older patients improved more, regardless of treatment, and surgery may be more beneficial for patients without mechanical symptoms (as-treated analysis). The effect of the predictive factors on the KOOS pain subscore was uncertain because of the small sample size in the subgroup analyses. Conclusion: The benefit of knee arthroscopic surgery, seen at 1 year in middle-aged patients with meniscal symptoms, was diminished at 3 years and was no longer statistically significant.
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| 4. |
- Kvist, Joanna, 1967-, et al.
(författare)
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Changes in knee motion pattern after anterior cruciate ligament injury - A case report
- 2007
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Ingår i: Clinical Biomechanics. - : Pergamon Press. - 0268-0033 .- 1879-1271. ; 22:5, s. 551-556
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Tidskriftsartikel (refereegranskat)abstract
- Background: After an anterior cruciate ligament injury, the contra-lateral non-injured leg has been found to adapt towards the injured leg. Accordingly, in order to study changes in knee motion pattern after an anterior cruciate ligament injury, the ideal is to compare the same leg prior to and after the injury. However, this is very seldom possible. The purpose of the present study was to describe changes in static and dynamic sagittal tibial translation, electromyographic activity and muscle torque relevant to an anterior cruciate ligament tear in one patient evaluated both before and after the injury.Methods: A male soccer player was examined 11 weeks before and eight weeks after an anterior cruciate ligament injury. Sagittal tibial translation was measured with the CA-4000 electrogoniometer, statically during Lachman's test, and dynamically during isokinetic muscle testing, one-legged squat and level walking. The electromyographic activity of mm. quadriceps and hamstrings, was registered simultaneously during the one-legged squat test.Findings: Static tibial translation was increased by ∼2 mm, while dynamic tibial translation was decreased by 0.4 mm at isokinetic testing, 0.9 mm at one-legged squat and 2.4 mm during level walking compared to before the injury. Muscle torque decreased 30% and 35% for the quadriceps and the hamstrings muscle, respectively. The electromyographic activity revealed similar activation levels in quadriceps and a doubled level of activation in hamstring compared to before the injury.Interpretation: In spite of an increase in static tibial translation eight weeks after an anterior cruciate ligament injury, the tibial translation decreased during activity, thus indicating that the patient could stiffen the knee in order to protect it against increased shear forces.
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| 5. |
- Lindblom, Hanna, 1984-, et al.
(författare)
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Extended Knee Control programme lowers weekly hamstring, knee and ankle injury prevalence compared with an adductor strength programme or self-selected injury prevention exercises in adolescent and adult amateur football players : a two-armed cluster-randomised trial with an additional comparison arm
- 2023
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Ingår i: British Journal of Sports Medicine. - : BMJ Publishing Group. - 0306-3674 .- 1473-0480. ; 57:2, s. 83-90
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Tidskriftsartikel (refereegranskat)abstract
- Objective To evaluate the preventive efficacy of an extended version of the Knee Control injury prevention exercise programme (IPEP) compared with an adductor strength programme and to a comparison group using a self-selected IPEP in amateur adolescent and adult male and female football players. Methods Two-armed cluster-randomised trial with an additional non-randomised arm. All 251 amateur teams (players 14-46 years) in one regional football district were approached. Teams meeting inclusion criteria were randomised to (1) extended Knee Control or (2) an adductor strength programme. Teams already using an IPEP were allocated to a comparison group and received no new intervention. Players responded to weekly questionnaires about football exposures and injuries during a 7-month season. Results Seventeen teams in the extended Knee Control, 12 in the adductor and 17 in the comparison group participated, with 502 players. For the primary outcomes, no difference in injury incidence in three lower-limb injury locations combined (hamstring, knee and ankle) was seen between extended Knee Control and the adductor group, whereas extended Knee Control had 29% lower incidence than the comparison group (incidence rate ratio 0.71, 95% CI 0.52 to 0.98). No between-group differences in groin injury incidence were seen. The weekly injury prevalence rates in the three lower limb locations combined (hamstring, knee and ankle) were 17% lower (prevalence rate ratio (PRR) 0.83, 95% CI 0.69 to 1.00) and 26% lower (PRR 0.74, 95% CI 0.63 to 0.87) in extended Knee Control compared with the adductor and comparison groups, respectively. Conclusion No difference in injury incidence was seen between the extended Knee Control and the adductor programme whereas extended Knee Control reduced injury incidence by nearly one-third compared with a self-selected IPEP. Players in extended Knee Control had lower injury prevalence compared with an adductor or self-selected IPEP.
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| 6. |
- Perera, Nirmala, et al.
(författare)
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Illness prevalence and symptoms in youth floorball players : a one-season prospective cohort study involving 471 players
- 2021
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Ingår i: BMJ Open. - : BMJ Publishing Group. - 2044-6055. ; 11:12
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Tidskriftsartikel (refereegranskat)abstract
- Objective To describe weekly illness prevalence and illness symptoms by sex in youth floorball players during one season. Design Prospective cohort study. Setting Players who were registered to play community level floorball during the 2017-2018 season (26 weeks) in two provinces in southern Sweden. Participants 471 youth players aged 12-17 years. Mean (SD) age for 329 male players 13.3 (1.0) years and 142 female players 13.7 (1.5) years. Primary and secondary outcome measures Weekly self-reported illness prevalence and illness symptoms according to the 2020 International Olympic Committees consensus recommendations. Results 61% of youth floorball players reported at least one illness week during the season, with an average weekly illness prevalence of 12% (95% Cl 10.8% to 12.3%). The prevalence was slightly higher among females (13%, 95% CI 11.6% to 14.3%) than males (11%, 95% Cl 9.9% to 11.7%), prevalence rate ratio 1.20 (95% CI 1.05 to 1.37, p=0.009). In total, 49% (53% male, 43% female) of illness reports indicated that the player could not participate in floorball (time loss), with a mean (SD) absence of 2.0 (1.7) days per illness week. Fever (30%), sore throat (16%) and cough (14%) were the most common symptoms. Female players more often reported difficulty in breathing/tight airways and fainting, and male players more often reported coughing, feeling tired/ feverish and headache. Illness prevalence was highest in the peak winter months (late January/February) reaching 15%-18% during this period. Conclusions Our novel findings of the illness prevalence and symptoms in youth floorball may help direct prevention strategies. Athletes, coaches, parents and support personnel need to be educated about risk mitigation strategies.
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| 7. |
- Sonesson (fd Tagesson), Sofi, 1977-, et al.
(författare)
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Rehabilitation after ACL injury and reconstruction from the patients perspective
- 2022
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Ingår i: Physical Therapy in Sport. - : Elsevier. - 1466-853X .- 1873-1600. ; 53, s. 158-165
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Tidskriftsartikel (refereegranskat)abstract
- Objectives: To describe and compare patients appraisal of the rehabilitation and adherence to the rehabilitation program after acute ACL injury treated with (ACLR) or without (non-ACLR) reconstruction.Design: Prospective cohort study.Participants: 275 patients (143 females; mean age 25 +/- 7 years) with acute ACL injury, of whom 166 patients had ACLR within 24 months.Main outcome: Adherence to rehabilitation was assessed using the modified Sports Injury Rehabilitation Adherence Scale (SIRAS).Results: Appraisal of rehabilitation was higher in the post-ACLR group compared to the non-ACLR group at 3 months (91% compared to 70% scored rehabilitation as necessary, p = 0.025) and at 6 months (87% compared to 70% scored it as necessary, p = 0.017). SIRAS score did not differ between 3 and 6 months for the non-ACLR group (median (IQR) 13 (2) vs 13 (2)) or the post-ACLR group (14 (1) vs 14 (2), p>0.05). The post-ACLR group had a higher SIRAS score than the non-ACLR group at 3 and 6 months (p ≤0.001).Conclusion: Patients treated with ACLR reported valuing their rehabilitation more and rated greater adherence to the rehabilitation programme than non-surgically treated patients. As rehabilitation is essential for good knee function, strategies to improve adherence after non-ACLR treatment should be implemented.
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| 8. |
- Sonesson, Sofi, 1977-, et al.
(författare)
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Accelerometer-assessed physical activity patterns during the first two years after a non-surgically treated ACL injury
- 2023
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Ingår i: Physical Therapy in Sport. - : CHURCHILL LIVINGSTONE. - 1466-853X .- 1873-1600. ; 64, s. 123-132
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Tidskriftsartikel (refereegranskat)abstract
- Objectives: To describe physical activity patterns and analyze changes during the first two years after a non-surgically treated ACL injury, and to assess correlations between accelerometer-assessed physical activity and self-reported knee function and knee-related quality of life.Design: Prospective cohort study.Participants: 128 patients (61 females, 25.2 +/- 7.1 years) with acute ACL injuryMain outcome measures: Physical activity patterns were measured with accelerometry. Self-reported knee function was assessed using the International Knee Documentation Committee Subjective Knee Form, and knee-related quality of life was assessed using the Anterior Cruciate Ligament Quality of Life questionnaire.Results: Moderate to vigorous physical activity (MVPA) and steps per day increased from baseline to 3 months (p < .001), with no further increase from 3 to 24 months (p > .05). Time in MVPA did not correlate to patient reported outcome measures at 3, 6, 12, or 24 months (p > .05).Conclusions: Physical activity increased from acute phase to 3 months after non-surgically treated ACL injury, but almost one in four patients did not reach recommended levels of physical activity. Physical activity did not correlate with knee function or quality of life. Patients may need improved support to return to physical activity after ACL injury.
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| 9. |
- Sonesson, Sofi, 1977-, et al.
(författare)
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Bilateral changes in knee joint laxity during the first year after non-surgically treated anterior cruciate ligament injury.
- 2022
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Ingår i: Physical Therapy in Sport. - Edinburgh : Churchill Livingstone. - 1466-853X .- 1873-1600. ; 58, s. 173-181
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVES: Analyse changes in knee laxity between 3, 6, 12 and 24 months after non-surgically treated ACL injury and to analyse associations between knee laxity and knee function, self-reported knee stability, ACL-Return to Sport after Injury (ACL-RSI), fear and confidence at different timepoints during recovery.DESIGN: Prospective cohort study.PARTICIPANTS: 125 patients (67 males, mean age 25.0 ± 7.0 years) with acute ACL injury.MAIN OUTCOME: Laxity was measured using KT-1000 arthrometer. Self-reported knee function was assessed using the International Knee Documentation Committee Subjective Knee Form (IKDC-SKF). Confidence and fear were assessed with questions from the ACL-RSI scale. Subjectively knee stability was assessed using SANE.RESULTS: Knee laxity increased bilaterally from 3 to 12 months, and in the non-involved knee from 3 to 24 months (p˂0.05), although mean change was below 1 mm. Side-to-side difference in knee laxity was correlated with IKDC-SKF (r = -0.283) and knee stability in rehabilitation/sport activities (r = -0.315) at 6 months, but not with confidence/fear.CONCLUSION: Knee laxity increased bilaterally during the first year after non-surgically treated ACL injury, though, the mean change in knee laxity was below 1 mm and the clinical significance is unknown. Knee laxity was weakly associated with knee function and perceived knee stability.LEVEL OF EVIDENCE: Level II TRIAL REGISTRATION: NCT02931084.
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| 10. |
- Sonesson, Sofi, 1977-, et al.
(författare)
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Higher age and present injury at the start of the season are risk factors for in-season injury in amateur male and female football players-a prospective cohort study
- 2023
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Ingår i: Knee Surgery, Sports Traumatology, Arthroscopy. - : SPRINGER. - 0942-2056 .- 1433-7347. ; 31, s. 4618-4630
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Tidskriftsartikel (refereegranskat)abstract
- PurposeTo describe the injury prevalence, injury pattern, and potential baseline risk factors for injuries in male and female adolescent and adult amateur football players.MethodsThis prospective study followed adolescent and adult amateur football players over one season March-October 2020. The study was completed by 462 players (130 men, age 20.0 & PLUSMN; 5.7, 14-46 years) who answered a baseline survey and a weekly web survey during the season. A total of 1456 weekly surveys were registered from males and 5041 from females. Injuries were recorded with the Oslo Sports Trauma Research Center Overuse Injury Questionnaire (OSTRC-O2). Potential baseline risk factors (age, performance of strength/conditioning training, participation in other sports, perceived importance of sporting success, self-rated training and match load, perceived balance between training/match load and recovery, previous/present injury at start of season, and injury beliefs) and their association with injury were analysed with Poisson regressions within each sex.ResultsMales reported 95 injuries (262 injury weeks, weekly prevalence 18.0% (95% CI 16.1-20.1)) and females 350 injuries (1206 injury weeks, weekly prevalence 23.9% (95% CI 22.8-25.1)). Gradual-onset injuries accounted for 57% of the injuries in males and 66% in females. For males, substantial injuries were most common in the hip/groin (weekly prevalence 3.8%), ankle (2.1%), posterior thigh (2.0%), and knee (2.0%); and for females, in the knee (4.3%), ankle (2.5%), and lower leg/Achilles tendon (2.0%). Significant risk factors for injury were higher age (rate ratio males 1.05 per year increase (95% CI 1.02-1.08), females 1.03 (95% CI 1.01-1.05)), and present injury at baseline (males 1.92 (95% CI 1.27-2.89), females 1.58 (95% CI 1.19-2.09)).ConclusionAt any given week, almost one in five male and one in four female amateur football players reported new or ongoing injuries. Hip/groin injuries were more frequent in males, while female players had a higher prevalence of knee injuries. Older players and those with an existing injury at the start of the season were more prone to new injury during the season. Rehabilitation of pre-season injury and complaints are key to reduce the injury burden in amateur football.
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| 11. |
- Sonesson, Sofi, 1977-, et al.
(författare)
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Neuromuscular control and hop performance in youth and adult male and female football players
- 2022
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Ingår i: Physical Therapy in Sport. - : Churchill Livingstone. - 1466-853X .- 1873-1600. ; 55, s. 189-195
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Tidskriftsartikel (refereegranskat)abstract
- Objectives: To compare neuromuscular control and hop performance between youth and adult male and female football players. Design: Cross-sectional study. Participants: 119 youth players (13-16 years; 68 males) and 88 adult players (17-26 years; 44 males). Main outcome measures: Neuromuscular control assessed with drop vertical jump (DVJ) and tuck jump assessment (TJA). Hop performance assessed with single-leg hop for distance and side hop. Results: Adult females had smaller normalized knee separation distances (NKSD) during DVJ at initial contact (77.9 +/- 18.5 vs. 86.1 +/- 11.0, p = 0.010) and at maximum knee flexion (59.7 +/- 23.4 vs.74.1 +/- 18.1, p = 0.001) compared to youth females. TJA revealed more technique errors in youths compared to adults (males 10 (8-11) vs. 8 (7-10); females 11 (9-12) vs. 9 (8-11), p < 0.05). Youths demonstrated inferior hop performance (males single-leg hop 142 +/- 18 vs. 163 +/- 17, side hop 41 +/- 12 vs. 52 +/- 12, p < 0.001; females side hop 32 +/- 10 vs. 38 +/- 14, p < 0.05). Conclusions: Youth players demonstrated reduced neuromuscular control during TJA and inferior hop performance compared to adult players. Adult female players demonstrated greater knee valgus during DVJ compared to youth female players.
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| 12. |
- Sonesson, Sofi, 1977-, et al.
(författare)
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Risk factors for injury and illness in youth floorball players- A prospective cohort study
- 2023
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Ingår i: Physical Therapy in Sport. - : CHURCHILL LIVINGSTONE. - 1466-853X .- 1873-1600. ; 59, s. 92-102
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Tidskriftsartikel (refereegranskat)abstract
- Objectives: To investigate risk factors for injury and illness in female and male youth floorball players (12-17 years) during a 26-week floorball season. Design: Prospective cohort study. Setting: Recreational youth sport. Participants: 471 players (142 females) 12-17 years. Main outcome measures: Weekly survey including questions about stress, sleep quality, well-being, sport exposure and average weekly rating of perceived exertion (RPE). Acute:chronic workload ratio (ACWR) was calculated. The Oslo Sports Trauma Research Center questionnaire on health problems was used. Predictors of new injury and illness were examined using multi-level logistic regression models with weekly measures nested within individuals. Results: Higher stress, poorer sleep quality and well-being increased the odds of a new injury in the subsequent week by 8% (2.0-13.5%), 10% (4.2-15.9%) and 8% (2.4-13.5%) per 1 unit increase. Higher stress, and poorer well-being increased the odds of illness by 8% (2.6-12.6%), and 12% (7.2-16.6%). ACWR below 0.8 or above 1.3 increased the odds of illness by 34% (4.9-70.8%). Conclusions: Perceived stress, well-being, and sleep quality were associated with injury and illness occurrence in the subsequent week. ACWR outside the range 0.8-1.3 was associated with illness the subsequent week. Trial registration: Clinical Trials registration NCT03309904. (c) 2022 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
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| 13. |
- Tagesson (Sonesson), Sofi, 1977-, et al.
(författare)
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Dynamic and static tibial translation in patients with anterior cruciate ligament deficiency initially treated with a structured rehabilitation protocol
- 2017
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Ingår i: Knee Surgery, Sports Traumatology, Arthroscopy. - : Springer. - 0942-2056 .- 1433-7347. ; 25:8, s. 2337-2346
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Tidskriftsartikel (refereegranskat)abstract
- PURPOSE:To compare dynamic and static tibial translation, in patients with anterior cruciate ligament deficiency, at 2- to 5-year follow-up, with the tibial translation after 4 months of rehabilitation initiated early after the injury. Secondarily, to compare tibial translation in the injured knee and non-injured knee and explore correlations between dynamic and static tibial translation.METHODS:Twelve patients with ACL rupture were assessed at 3-8 weeks after ACL injury, after 4 months of structured rehabilitation, and 2-5 years after ACL injury. Sagittal tibial translation was measured during the Lachman test (static translation) and during gait (dynamic translation) using a CA-4000 electrogoniometer.RESULTS:Static tibial translation was increased bilateral 2-5 years after ACL injury, whereas the dynamic tibial translation was unchanged. Tibial translation was greater in the injured knee compared with the non-injured knee (Lachman test 134 N 9.1 ± 1.0 vs. 7.0 ± 1.7 mm, P = 0.001, gait 5.6 ± 2.1 vs. 4.7 ± 1.8 mm, P = 0.011). There were no correlations between dynamic and static tibial translation.CONCLUSION:Dynamic tibial translation was unchanged in spite of increased static tibial translation in the ACL-deficient knee at 2- to 5-year follow-up compared to directly after rehabilitation. Dynamic tibial translation did not correlate with the static tibial translation. A more normal gait kinematics may be maintained from completion of a rehabilitation programme to mid-term follow-up in patients with ACL deficiency treated with rehabilitation only.
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| 14. |
- Tagesson (Sonesson), Sofi, 1977-
(författare)
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Dynamic knee stability after anterior cruciate ligament injury : Emphasis on rehabilitation
- 2008
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Anterior cruciate ligament injury leads to increased sagittal tibial translation, and perceptions of instability and low confidence in the knee joint are common. Many patients have remaining problems despite treatment and are forced to lower their activity level and prematurely end their career in sports. The effect of ACL reconstruction and/or rehabilitation on dynamic knee stability is not completely understood. The overall aim of this thesis was to study the dynamic knee stability during and after rehabilitation in individuals with ACL injury. More specific aims were 1) to elaborate an evaluation method for muscle strength, 2) to evaluate the effect of exercises in closed and open kinetic chain, and 3) to evaluate dynamic knee stability in patients with ACL deficiency or ACL reconstruction.Sagittal tibial translation and knee flexion angle were measured using the CA‐4000 computerised goniometer linkage. Muscle activation was registered with electromyography.The intra‐ and inter‐rater reliability of 1 repetition maximum (RM) of seated knee extension was clinically acceptable. The inter‐rater reliability of 1RM of squat was also acceptable, but the intra‐rater reliability was lower. The systematic procedure for the establishment of 1RM that was developed can be recommended for use in the clinic.One specific exercise session including cycling and a maximum number of knee extensions and heel raises did not influence static or dynamic sagittal tibial translation in uninjured individuals. A comprehensive rehabilitation program with isolated quadriceps training in OKC led to significantly greater isokinetic quadriceps strength compared to CKC rehabilitation in patients with ACL deficiency. Hamstring strength, static and dynamic translation, and functional outcome were similar between groups. Five weeks after ACL reconstruction, seated knee extension produced more anterior tibial translation compared to the straight leg raise and standing on one leg. All exercises produced less or equal amount of anterior tibial translation as the 90N Lachman test.Five weeks after the ACL reconstruction the static and dynamic tibial translation in the ACL reconstructed knee did not differ from the tibial translation on the uninjured leg. Patients in the early phase after ACL injury or ACL reconstruction used a joint stiffening strategy including a reduced peak knee extension angle during gait and increased hamstring activation during activity, which reduces the dynamic tibial translation. Patients with ACL deficiency that completed a four months rehabilitation program used a movement pattern that was more close to normal.
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| 15. |
- Tagesson (Sonesson), Sofi, 1977-, et al.
(författare)
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Passive and dynamic translation in the knee is not influenced by knee exercises in healthy individuals
- 2005
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Ingår i: Scandinavian Journal of Medicine and Science in Sports. - : Wiley-Blackwell. - 0905-7188 .- 1600-0838. ; 15:3, s. 139-147
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Tidskriftsartikel (refereegranskat)abstract
- No evidence exists that repeated isolated quadriceps contractions lead to increased sagittal plane tibial translation. The purpose was to analyze passive and dynamic tibial translation before, during and after a specific exercise session, including cycling and a maximum number of knee extensions and heel-raises, in healthy individuals. Passive and dynamic sagittal tibial translation was measured on 18 healthy individuals (nine men and nine women) before, during and after a specific exercise session with heavy load, including cycling and maximum number of knee extensions and heel-raises. Sagittal tibial translation during the Lachman test, maximal isometric quadriceps contraction, one-legged squat and gait was registered with the CA-4000 electrogoniometer. The electromyographic (EMG) activity of m. vastus medialis and lateralis, m. gastrocnemius and mm. hamstrings was registered. There was no difference in passive or dynamic sagittal tibial translation during or after the exercise session. No difference could be detected in EMG activity during squat after compared with before the exercise session. In conclusion, the knee exercises did not influence the amount of translation in healthy individuals. The findings indicate that isolated strength training of quadriceps may be included in anterior cruciate ligament rehabilitation programs, even if further specific studies on injured individuals most be performed.
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| 16. |
- Tagesson (Sonesson), Sofi, 1977-, et al.
(författare)
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Psychological factors are important to return to pre-injury sport activity after anterior cruciate ligament reconstruction : expect and motivate to satisfy.
- 2017
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Ingår i: Knee Surgery, Sports Traumatology, Arthroscopy. - : Springer London. - 0942-2056 .- 1433-7347. ; 25:5, s. 1375-1384
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Tidskriftsartikel (refereegranskat)abstract
- PURPOSE: To describe individuals' expectations, motivation, and satisfaction before, during, and after rehabilitation for ACL reconstruction and to explore how these factors were associated with return to pre-injury sport activity at 1-year follow-up.METHODS: Sixty-five individuals (34 males), median age 22 (15-45) years, scheduled for ACL reconstruction participated. Participants completed the International Knee Documentation Committee Subjective Knee Form (IKDC-SKF) and questions about expectations, satisfaction, and motivation pre-operatively and at 16 and 52 weeks after surgery.RESULTS: Prior to surgery, 86 % of participants stated that their goal was to return to their pre-injury sport activity. Those who had returned to their pre-injury sport activity at 52 weeks were more motivated during rehabilitation to return to their pre-injury activity level, more satisfied with their activity level and knee function at 52 weeks, and scored significantly higher on the IKDC-SKF [median 92.0 (range 66.7-100.0)] at 52 weeks, compared to those who had not returned [median 77.6 (range 50.6-97.7)].CONCLUSION: Prior to ACL reconstruction, most participants expected to return to their pre-injury activity level. Higher motivation during rehabilitation was associated with returning to the pre-injury sport activity. The participants who had returned to their pre-injury sport activity were more satisfied with their activity level and knee function 1 year after the ACL reconstruction. Facilitating motivation might be important to support individuals in achieving their participation goals after ACL reconstruction.LEVEL OF EVIDENCE: Prospective cohort study, Level II.
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| 17. |
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| 18. |
- Tagesson (Sonesson), Sofi, 1977-
(författare)
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Stabilitet i knäleden efter främre korsbandsskada
- 2008
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Ingår i: Svensk idrottsmedicin. - : Svensk Förening för Fysisk Aktivitet och Idrottsmedicin. - 1103-7652. ; 2, s. 26-29
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Tidskriftsartikel (populärvet., debatt m.m.)
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| 19. |
- Tigerstrand Grevnerts, Hanna, 1981-, et al.
(författare)
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Translation and testing of measurement properties of the Swedish version of the IKDC subjective knee form
- 2017
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Ingår i: Scandinavian Journal of Medicine and Science in Sports. - : WILEY. - 0905-7188 .- 1600-0838. ; 27:5, s. 554-562
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Tidskriftsartikel (refereegranskat)abstract
- To translate to Swedish language and cross-culturally adapt the IKDC-SKF and to test the measurement properties of the Swedish version of IKDC-SKF in ACL-injured patients undergoing reconstruction surgery.The translation and cross-cultural adaption was performed according to guidelines. Seventy-six patients with an ACL injury filled out the IKDC-SKF and other questionnaires before ACL reconstruction and at 4, 6, and 12months after surgery. A total of 203 patients from the Swedish ACL Registry participated at 8months post-operative. Measurement properties were tested according to the COnsensus-based Standards for the selection of health Measurement INstruments (COSMIN) guidelines.The Swedish IKDC-SKF had high internal consistency (Cronbachs alpha=0.90) and test-retest reliability (ICC2,1=0.92, CI 95%: 0.81-0.97, P<.001). A single factor solution accounted for 46.1% of the variance in IKDC-SKF scores. Criterion validity was moderate to high. All ten predefined hypotheses for hypothesis testing were confirmed. The six hypotheses for responsiveness testing were confirmed. The effect size was 1.8, the standardized response mean was 1.9, the and minimal clinically important difference was 13.9 points.The Swedish version of the IKDC-SKF had good measurement properties and can be recommended for use in a population of ACL-deficient patients undergoing ACL reconstruction.
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| 20. |
- Tigerstrand Grevnerts, Hanna, 1981-
(författare)
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Treatment Decision after Anterior Cruciate Ligament Injury, and Evaluation of Measurement Properties of a Patient Reported Outcome Measure
- 2019
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Background: After an ACL injury, treatment aims to restore knee function. Evaluation of treatment progress is important, and adequate measurement methods are necessary. The International Knee Documentation Committee- Subjective Knee Form (IKDC-SKF) is a common patient-reported outcome measure (PROM) used after ACL injury. It evaluates symptoms, function and physical activity. The IKDC-SKF had not been translated to Swedish language for use in Swedish clinical and research settings. The measurement properties of the IKDC-SKF had been tested, but no assessment of methodological quality of the studies investigating it, nor compiling of results, was published.Sooner or later after an ACL injury, a treatment decision must be made. Treatment options are either ACL reconstruction (ACLR) plus rehabilitation, or rehabilitation alone. There are guidelines stating that a decision for ACLR should be made if the patient has high activity demands and/or knee instability. It is unclear which factors orthopaedic surgeons and physiotherapists prioritise when recommending ACLR. It is also unclear when the decision for treatment is taken, on what grounds, and how treatment decision correlates to patients reported symptoms and function.Aims: The overall aim of this thesis was to evaluate the measurement properties of a patient-reported measure for evaluation of function after ACL injury and treatment, and to overview the treatment decision process after an ACL injury.Methods: A systematic review was conducted to assess the measurement properties of the IKDC-SKF. The IKDC-SKF was translated from English to Swedish, and the Swedish version was tested for reliability, validity, responsiveness and interpretability.A survey study was conducted, where 98 orthopaedic surgeons and 391 physiotherapists rated 21 predefined factors based on importance to the decision for ACLR. Orthopadic surgeons and physiotherapists rated how important they considered their own, their counterparts’ and patient’s wishes for treatment decision making.In a prospective cohort study, patients with an ACL injury were followed from within 6 weeks up to 12 months after injury. Data regarding treatment chosen, when and why, 11were described and compared to patient-reported pre-injury activity level, instability and function.Results: The English and Swedish version of the IKDC-SKF had good measurement properties and interpretability.Swedish orthopaedic surgeons and physiotherapists considered young age, high activity demands, knee-demanding occupation, and knee instability despite adequate rehabilitation indications to recommend ACLR.An early decision for ACLR was primarily based on high activity demands. A later decision was mainly due to instability and high activity demands. A decision taken later than five months after injury was based mainly on instability.A decision for non-operative treatment taken and maintained during the first 12 months after injury was mainly due to sufficient function or no instability problems, and patients were older than other groups.Conclusions: The patient-reported outcome measurement IKDC-SKF was suitable for evaluation and assessment in patients with ACL injury.ACLR as treatment after an ACL injury was recommended for young patients and/or those with high activity demands (i.e. knee demanding occupation and/or instability despite adequate rehabilitation).An early decision for ACLR was more often based on high activity demands, while later decisions were more often based upon perceived instability. Non-operative treatment decisions were often based upon lack of instability problems or sufficient knee function.Self-reported instability and function during the first three months after ACL injury were no different in patients who chose ACLR treatment or who chose non-operative treatment.
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| 21. |
- Torvaldsson, Kalle, et al.
(författare)
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Swedish Olympic athletes report one injury insurance claim every second year: a 22-year insurance registry-based cohort study.
- 2023
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Ingår i: Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA. - : SPRINGER. - 0942-2056 .- 1433-7347. ; 31:10, s. 4607-4617
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Tidskriftsartikel (refereegranskat)abstract
- To describe injury incidence, time trends in injury incidence, and injury characteristics among Swedish Olympic athletes over 22years based on insurance data, as a first step to inform injury preventive measures among Olympic athletes.The cohort comprised 762 elite athletes (54% males; age 26.5±5.9years) in 38 sports in the Swedish Olympic Committee support program 'Top and Talent' between 1999 and 2020, with total 3427 athlete-years included. Acute and gradual onset injuries were reported to the insurance registry by the athletes' medical staff.A total of 1635 injuries in 468 athletes were registered. The overall injury incidence was 47.7 injuries/100 athlete-years (one injury per athlete every second year). An increasing trend in injury incidence was observed in the first decade 2001 to 2010 (annual change 6.0%, 95% CI 3.3-8.8%), while in the second decade 2011 to 2020 no change was evident (0.4%, 95% CI -1.9 to 2.7%). Gymnastics, tennis, and athletics had the highest incidence (100.0, 99.3, and 93.4 injuries/100 athlete-years, respectively). Among sport categories, mixed and power sports had the highest incidence (72.8 and 69.5 injuries/100 athlete-years, respectively). Higher incidences were seen in the younger age groups (≤25years) in mixed and skill sports. The injury incidence was comparable between male and female athletes, and summer and winter sports. Most injuries occurred in the lower limb, and specifically the knee (24%), foot/ankle (15%) and spine/pelvis (13%).The results on injury patterns in different sports and age groups may guide preventive focus for health and performance teams working with Olympic athletes.II.
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| 22. |
- Åkerlund, Ida, et al.
(författare)
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High compliance with the injury prevention exercise programme Knee Control is associated with a greater injury preventive effect in male, but not in female, youth floorball players
- 2022
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Ingår i: Knee Surgery, Sports Traumatology, Arthroscopy. - : Springer. - 0942-2056 .- 1433-7347. ; 30:4, s. 1480-1490
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Tidskriftsartikel (refereegranskat)abstract
- Purpose Evaluate team and player compliance with the Knee Control injury prevention exercise programme, study the association between player compliance and injury rates, and compare coach demographics, baseline prevention expectancies, and programme utilisation between teams with high and low compliance. Methods Prospective one-season cohort study based on a cluster randomised controlled trial on 301 (107 female) floorball players aged 12-17 years. Floorball exposure and injuries were self-reported weekly by players using the Oslo Sports Trauma Research Center questionnaire. Team and player compliance to Knee Control was reported monthly by coaches. Additionally, coaches answered pre- and post-season surveys. Teams were divided into a high (>= 80%) or low (< 80%) compliance group based on their use of Knee Control during the season. Players were divided into three compliance groups based on their average weekly number of Knee Control sessions; high (>= 2 sessions), intermediate (>= 1 to < 2 sessions), and low dose (< 1 session). Results Mean team compliance for the high and low compliance groups were 95% (range 82-100) and 50% (range 13-66), respectively. Mean +/- SD weekly Knee Control dose in the three player compliance groups were 2.4 +/- 0.3, 1.4 +/- 0.3, and 0.7 +/- 0.3 sessions, respectively. There were no differences in total injury incidence between the player compliance groups, but players in the high-dose group had a 35% lower prevalence of injuries overall [adjusted prevalence rate ratio (PRR) 0.65, 95% CI 0.48-0.89] and 60% lower prevalence of substantial injuries (adjusted PRR 0.40, 95% CI 0.26-0.61) compared with the low-dose group. Male players in the high-dose group had consistently lower injury incidence and prevalence, while no between compliance group differences were seen in female players. There were no differences in sex, years of coaching experience, or baseline prevention expectancies in general between coaches for teams in the high vs. low compliance groups, but teams in the high compliance group had a better utilisation fidelity. Conclusion There was a clear dose-response relationship between more frequent Knee Control use and lower injury rates in male floorball players, but not in female players. Teams with higher compliance also showed a better utilisation fidelity with the programme.
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| 23. |
- Åkerlund, Ida, 1986-
(författare)
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Injury Prevention in Youth Male and Female Floorball Players : Effects, Compliance, and Experiences of the Knee Control Programme
- 2024
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Background: Floorball is one of the most popular team ball sports in Northern Europe, particularly among youths. The injury incidence is high, as is the case in other pivoting youth team ball sports, such as football. The injury prevention exercise programme (IPEP) Knee Control is developed to reduce injuries in team ball sports. Though, programme effects and implementation factors in floorball has not been evaluated.The overall aim of this thesis was to evaluate the effects of the Knee Control IPEP and explore players’ and coaches’ experiences of using Knee Control in youth floorball.Methods: Study A was a cluster-randomised controlled trial (RCT) evaluating the effects of Knee Control in reducing floorball injuries. The RCT comprised of 48 clusters (clubs) with male and female floorball players (12–17 years) on the community level who were randomised into either an intervention or control group. Seventeen clusters (31 teams with 301 players) in the intervention group and 12 clusters (16 teams with 170 players) in the control group were included for analyses. During a pre-season implementation workshop, the intervention group coaches were instructed to use Knee Control and a standard running warm-up before every training session during the season. Control teams continued usual training. Teams were followed during a competitive season (26 weeks). Player exposure to floorball and occurrence of acute and gradual onset injuries were reported weekly via a web-based player survey using the Oslo Sports Trauma Research Centre overuse injury questionnaire. Team and player compliance to Knee Control was reported monthly by coaches. Players were divided into three compliance groups based on their average weekly number of Knee Control sessions: high (≥2 sessions), intermediate (≥1 to <2 sessions), and low dose (<1 session). Additionally, players and coaches in the intervention group answered a post-season survey on experiences using Knee Control.Study B was a qualitative study exploring facilitators and barriers of Knee Control use and how to overcome the barriers. Semi-structured focus group discussions, six with players (11–17 years old, n =42), and two with coaches (n =12) were conducted.Results: In Study A, the intervention group had a 35% lower incidence rate of injuries overall (adjusted incidence rate ratio (IRR), 0.65; 95% confidence interval (CI), 0.52– 0.81) and 45% lower incidence of acute injuries (adjusted IRR, 0.55; 95% CI, 0.37–0.83) than the control group. There was no difference in the prevalence of gradual onset injuries. Male players in the high dose group had consistently lower injury incidence and prevalence compared to the low dose group, while no differences between the three compliance groups were seen in female players. Common facilitators of Knee Control use among coaches were support and education for coaches and high player motivation, and common barriers were that injury prevention training was time-consuming, a lack of space to execute the exercises, and a lack of player motivation. Players and coaches who intended to maintain use of Knee Control had higher belief in their ability to use Knee Control.Study B showed that player-perceived improved performance and making preventive training a natural part of floorball could be promoting factors for IPEP use. Promoting factors for coaches were described as support from the federation and club and collaboration with other coaches. To overcome barriers, players and coaches gave examples of how to adapt and progress the preventive training to the team by starting at an early age and keeping it simple.Conclusions: Knee Control was effective in preventing injuries, especially acute injuries, in Swedish youth floorball players. Male players had a clear dose-response relationship between Knee Control dose and injury rate reduction. Players found the Knee Control exercises necessary for injury prevention, but perceived them as boring, while coaches felt uncertain of their competence to use Knee Control and wished for support. Ideas on how to overcome barriers for IPEP use were to create a good structure and routines for preventive training, and to tailor the preventive training to the team, thus increasing player motivation.
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