| 1. |
- Ahldén, Mattias, et al.
(författare)
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A Prospective Randomized Study Comparing Double- and Single-Bundle Techniques for Anterior Cruciate Ligament Reconstruction.
- 2013
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Ingår i: American Journal of Sports Medicine. - : SAGE Publications. - 0363-5465 .- 1552-3365. ; 41:11, s. 2484-2491
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND:The aim of the study was to compare the results after arthroscopic anterior cruciate ligament (ACL) reconstruction using either the double-bundle or single-bundle technique with hamstring tendon autografts in an unselected group of patients. HYPOTHESIS:Double-bundle ACL reconstruction will render a better outcome on the pivot-shift test. STUDY DESIGN:Randomized controlled trial; Level of evidence, 1. METHODS:A randomized series of 103 patients (33 women, 70 men; median age, 27 years; range, 18-52 years) with a unilateral ACL rupture underwent anatomic ACL reconstruction. The double-bundle technique was used in 53 patients, and the single-bundle technique was used in 50 patients. The ACL footprint was visualized, and the femoral tunnel was drilled through the anteromedial portal; interference screw fixation was used at both ends. The patients were examined preoperatively and at a median of 26 months (range, 22-42 months) after the reconstruction by a blinded observer. The primary variable was the pivot-shift test. RESULTS:At 2-year follow-up, 98 patients (93%) were examined. Clinical assessments at follow-up revealed no significant differences between the double-bundle and single-bundle groups in terms of the pivot-shift test, KT-1000 arthrometer laxity measurements, manual Lachman test, range of motion, Lysholm knee scoring scale, Tegner activity scale, Knee Injury and Osteoarthritis and Outcome Score (KOOS), 1-legged hop test, and square hop test. A significant improvement was seen in both groups compared with the preoperative values in terms of most clinical assessments. CONCLUSION:In this prospective randomized study, the primary variable, the pivot-shift test, and other subjective and objective outcome variables revealed no significant differences between the double-bundle and single-bundle techniques at 2 years after ACL reconstruction in an unselected group of patients.
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| 2. |
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| 3. |
- Ahldén, Mattias, et al.
(författare)
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Individualiserad terapi viktigt vid främre korsbandsskada. : Individualiserad terapi viktigt vid främre korsbandsskada.
- 2014
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Ingår i: Lakartidningen. - 0023-7205. ; 111:39
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Tidskriftsartikel (refereegranskat)abstract
- Anterior cruciate ligament (ACL) injury is a common injury and is often associated with concomitant injuries to the menisci and cartilage and, in the long term, osteoarthritis. Preventive training programs have shown to be highly effective in terms of reducing the risk for ACL injury in sports. ACL reconstruction is indicated when the patient experiences symtoms of instability (»giving way«) despite rehabilitation with a physiotherapist aiming to gain neuromuscular control of the knee. Early ACL reconstruction may be indicated, for example when the patient desires to return to pivoting contact-sports at high level. Modern surgical technique for ACL reconstruction has evolved rapidly and includes »anatomic reconstruction« and individualized treatment, where each patient's unique anatomy, injury and requests on knee function are taken into consideration. In Sweden, more than 90% of all ACL reconstructions performed are included into the Swedish National ACL Register.
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| 4. |
- Ahldén, Mattias, et al.
(författare)
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Knee laxity measurements after anterior cruciate ligament reconstruction, using either bone-patellar-tendon-bone or hamstring tendon autografts, with special emphasis on comparison over time
- 2009
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Ingår i: Knee Surgery, Sports Traumatology, Arthroscopy. - : Springer Science and Business Media LLC. - 1433-7347 .- 0942-2056. ; 17:9, s. 1117-24
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Tidskriftsartikel (refereegranskat)abstract
- The aims of the study were to analyse the change in knee laxity over time after anterior cruciate ligament (ACL) reconstruction, using either bone-patellar-tendon-bone (BPTB) or hamstring (HS) tendon autografts, and to compare the knee laxity measurements between the study groups both pre-operatively and on multiple follow-up occasions. Another aim was to compare the radiographic findings in terms of degenerative changes between the study groups. A randomised series of 71 patients, who underwent ACL reconstruction using BPTB or HS tendon autografts and interference screw fixation, were included in the study. Of these patients, 47/71 (66%) attended a clinical examination, including laxity measurements using the KT-1000 arthrometer, pre-operatively and on four post-operative occasions; 6 months, 1 year, 2 years and 7 years after the reconstruction. The BPTB group consisted of 22 patients, while there were 25 patients in the HS group. There were no significant differences in the mean side-to-side knee laxity between the BPTB and the HS group pre-operatively or at the follow-up examinations. There was a tendency towards a reduction in side-to-side knee laxity over time in both groups, measured with the KT-1000 arthrometer. The decrease was significant when analysing the injured and uninjured knee separately (injured side p < 0.001 (BPTB) and p = 0.005 (HS), uninjured side p = 0.008 and p = 0.042, respectively). Forty-four patients (BPTB 21, ST 23) underwent a radiographic assessment at the 7-year follow-up, which revealed no significant differences between the study groups in terms of osteoarthritic findings classified according to the Fairbank and Ahlback rating systems. In overall terms, osteoarthritis was identified in 16% (BPTB 19%; ST 13%; n.s.) according to the Ahlback rating system and 68% (BPTB 67%; ST 70%; n.s.) according to the Fairbank rating system. There were no significant differences in knee laxity measurements between the two study groups pre-operatively or at 7 years. A decrease in knee laxity over time was seen in both groups. There were no significant differences between the BPTB and ST groups in terms of osteoarthritic findings at 7 years.
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| 5. |
- Ahldén, Mattias, et al.
(författare)
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Outcome of anterior cruciate ligament reconstruction with emphasis on sex-related differences.
- 2012
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Ingår i: Scandinavian journal of medicine & science in sports. - : Wiley. - 1600-0838 .- 0905-7188. ; 22:5, s. 618-626
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Tidskriftsartikel (refereegranskat)abstract
- The aim of this retrospective study was to compare the results after arthroscopic anterior cruciate ligament (ACL) reconstruction using the four-strand semitendinosus-gracilis (ST/G) autograft in male (n=141) vs female (n=103) patients. The patients were operated on between 1996 and 2005, using interference screw fixation and drilling the femoral tunnel through the anteromedial portal. The pre-operative assessments and demographics, apart from age (males 29 years, females 26 years; P=0.02), were comparable at the time of surgery. At 25 (23-36) months post-operatively, no significant differences were found between the study groups in terms of anterior side-to-side knee laxity, manual Lachman test, Tegner activity level, Lysholm knee score, range of motion or donor-site morbidity. Both study groups improved significantly in most clinical assessments and functional scores compared with their pre-operative values. Two years after ACL reconstruction using ST/G autografts, there were no significant differences between male and female patients in terms of clinical outcome or functional scores.
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| 6. |
- Ahldén, Mattias, et al.
(författare)
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Rotatory knee laxity.
- 2013
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Ingår i: Clinics in sports medicine. - : Elsevier BV. - 1556-228X .- 0278-5919. ; 32:1, s. 37-46
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Tidskriftsartikel (refereegranskat)abstract
- Evaluation of injured-knee laxity is essential for treatment selection, clinical follow-up, and research. Interest in rotatory knee laxity increased with implementation of anatomic anterior cruciate ligament reconstruction. The pivot shift test represents a link between static testing with 1° of freedom and dynamic testing during functional activity. Difficulties lie in standardizing the performance of the pivot shift test and extracting measurable and relevant kinematic data. Noninvasive methodologies based on electromagnetic or acceleration sensors can evaluate the pivot shift in a quantitative and reliable manner. Further validation and reliability testing of devices for examination of rotatory laxity is warranted.
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| 7. |
- Ahldén, Mattias, et al.
(författare)
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The Swedish National Anterior Cruciate Ligament Register A Report on Baseline Variables and Outcomes of Surgery for Almost 18,000 Patients
- 2012
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Ingår i: American Journal of Sports Medicine. - : SAGE Publications. - 0363-5465 .- 1552-3365. ; 40:10, s. 2230-2235
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Tidskriftsartikel (refereegranskat)abstract
- Background: The Swedish National Anterior Cruciate Ligament Register provides an opportunity for quality surveillance and research. Purpose: The primary objective was to recognize factors associated with a poorer outcome at an early stage. Study Design: Case series; Level of evidence, 4. Methods: Registrations are made using a web-based protocol with 2 parts: a patient-based section with self-reported outcome scores and a surgeon-based section, where factors such as cause of injury, previous surgery, time between injury and reconstruction, graft selection, fixation technique, and concomitant injuries are reported. The self-reported outcome scores are registered preoperatively and at 1, 2, and 5 years. Results: Approximately 90% of all anterior cruciate ligament (ACL) reconstructions performed annually in Sweden are reported in the register. Registrations during the period 2005-2010 were included (n = 17,794). After excluding multiligament reconstructions and reoperations, the male: female ratio was 57.5: 42.5 for both primary (n = 15,387) and revision (n = 964) surgery. The cause of injury was soccer in approximately half the male patients and in one third of the female patients. All subscales of the Knee injury and Osteoarthritis Outcome Score (KOOS) were significantly improved 1, 2, and 5 years postoperatively in patients undergoing primary reconstructions. In terms of the KOOS, revisions did significantly less well than primary reconstructions on all follow-up occasions, and smokers fared significantly less well than nonsmokers both preoperatively and at 2 years. Patients who had concomitant meniscal or chondral injuries at reconstruction did significantly less well preoperatively and at 1 year in terms of most KOOS subscales compared with patients with no such injuries. At 5 years, a significant difference was only found in terms of the sport/recreation subscale. Double-bundle reconstructions revealed no significant differences in terms of all the KOOS subscales at 2 years compared with single-bundle reconstructions (114 double-bundle vs 5109 single-bundle). During a 5-year period, 9.1% (contralateral, 5.0%; revision, 4.1%) of the patients underwent a contralateral ACL reconstruction or revision reconstruction of the index knee. The corresponding figure for 15- to 18-year-old female soccer players was 22.0%. Conclusion: Primary ACL reconstruction significantly improves all the subscales of the KOOS. Young female soccer players run a major risk of reinjuring their ACL or injuring the contralateral ACL; revision ACL reconstructions do less well than primary reconstructions, and smokers do less well than nonsmokers.
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| 8. |
- Hoshino, Yuichi, et al.
(författare)
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Quantitative evaluation of the pivot shift by image analysis using the iPad.
- 2013
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Ingår i: Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA. - : Springer Science and Business Media LLC. - 1433-7347. ; 21:4, s. 975-80
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Tidskriftsartikel (refereegranskat)abstract
- To enable comparison of test results, a widely available measurement system for the pivot shift test is needed. Simple image analysis of lateral knee joint translation is one such system that can be installed on a prevalent computer tablet (e.g. iPad). The purpose of this study was to test a novel iPad application to detect the pivot shift. It was hypothesized that the abnormal lateral translation in ACL deficient knees would be detected by the iPad application.
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| 9. |
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| 10. |
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| 11. |
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| 12. |
- Musahl, Volker, et al.
(författare)
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Erratum to: The pivot shift: a global user guide.
- 2013
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Ingår i: Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA. - 1433-7347. ; 21:3
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
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| 13. |
- Sansone, Mikael, et al.
(författare)
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A Swedish hip arthroscopy registry: demographics and development.
- 2014
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Ingår i: Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA. - : Springer Science and Business Media LLC. - 1433-7347. ; 22:4, s. 774-780
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Tidskriftsartikel (refereegranskat)abstract
- Hip arthroscopy is a rapidly expanding field in orthopaedics. Indications and surgical procedures are increasing. Although several studies report favourable clinical outcomes, further scientific evidence is needed for every aspect of this area. Accordingly, a registry for hip arthroscopy was developed. The purpose of this study is to describe the development of the registry and present its baseline data.
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| 14. |
- Sansone, Mikael, et al.
(författare)
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Can hip impingement be mistaken for tendon pain in the groin? A long-term follow-up of tenotomy for groin pain in athletes.
- 2014
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Ingår i: Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA. - : Springer Science and Business Media LLC. - 1433-7347. ; 22:4, s. 786-792
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Tidskriftsartikel (refereegranskat)abstract
- There are several reports on the association between pubalgia and intra-articular hip disorders. The purpose of this study was to evaluate the long-term outcome in athletes who underwent tenotomy due to long-standing groin pain. A secondary purpose was evaluating the frequency of femoro-acetabular impingement (FAI) and its impact on the long-term outcome.
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| 15. |
- Sansone, Mikael, et al.
(författare)
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Good Results After Hip Arthroscopy for Femoroacetabular Impingement in Top-Level Athletes.
- 2015
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Ingår i: Orthopaedic journal of sports medicine. - : SAGE Publications. - 2325-9671. ; 3:2
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Tidskriftsartikel (refereegranskat)abstract
- Femoroacetabular impingement (FAI) is a common cause of hip pain and dysfunction among athletes. Although arthroscopic surgery is an established treatment option for FAI, there are few studies reporting detailed outcomes using validated outcome measurements specifically designed for young and active athletes.
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| 16. |
- Sansone, Mikael, et al.
(författare)
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Outcome after hip arthroscopy for femoroacetabular impingement in 289 patients with minimum 2-year follow-up.
- 2017
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Ingår i: Scandinavian Journal of Medicine & Science in Sports. - : Wiley. - 0905-7188 .- 1600-0838. ; 27:2, s. 230-235
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Tidskriftsartikel (refereegranskat)abstract
- Femoroacetabular impingement (FAI) is a common cause of hip pain and dysfunction. The purpose of this study was to report outcome 2years after the arthroscopic treatment of FAI using validated outcome measurements. Two hundred and eighty-nine patients (males=190, females=99) with a mean age of 37years underwent arthroscopic surgery for FAI. Patients were included consecutively in a hip arthroscopy registry. The cohort was evaluated using online web-based validated health-related patient-reported outcomes measurements, including the iHOT-12, HAGOS, EQ-5D, HSAS for physical activity level, VAS for overall hip function and overall satisfaction. The mean follow-up time was 25.4months. Pre-operative scores compared with those obtained at follow-up revealed statistically and clinically significant improvements (P<0.05) for all measured outcomes; iHOT-12 (43 vs 66), VAS for global hip function (50 vs 71), HSAS (2.9 vs 3.6), EQ-5D index (0.58 vs 0.75), EQ-VAS (67 vs 75) and HAGOS different subscales (56 vs 76, 51 vs 69, 60 vs 78, 40 vs 65, 29 vs 57, 33 vs 58). At the 2-year follow-up, 236 patients (82%) reported they were satisfied with the outcome of surgery. We conclude that arthroscopic treatment for FAI resulted in statistically and clinically significant improvements in outcome parameters.
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| 17. |
- Sansone, Mikael, et al.
(författare)
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Outcome of hip arthroscopy in patients with mild to moderate osteoarthritis-A prospective study.
- 2016
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Ingår i: Journal of hip preservation surgery. - : Oxford University Press (OUP). - 2054-8397. ; 3:1, s. 61-7
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Tidskriftsartikel (refereegranskat)abstract
- Osteoarthritis (OA) of the hip is a common cause of hip pain. The arthroscopic management of patients with femoro-acetabular impingement (FAI) has been reported to yield good outcomes. The purpose of this study was to report on outcome following the arthroscopic treatment of patients with FAI in the presence of mild to moderate OA. Seventy-five patients undergoing arthroscopic surgery for FAI, all with preoperative radiological signs of mild to moderate OA were prospectively included in this study. A 2-year follow-up, using web-based patient-reported outcome measures, including the International Hip Outcome Tool (iHOT-12), Copenhagen Hip and Groin Outcome (HAGOS), EQ-5D, Hip Sports Activity Scale (HSAS) for physical activity level and a visual analogue scale (VAS) for overall hip function, was performed, complemented by a radiographic evaluation. At follow-up (mean 26 months, SD 5), five patients (7%) had undergone total hip arthroplasty, leaving 70 patients for the analysis. Preoperative scores compared with those obtained at the 2-year follow-up revealed significant improvements (P<0.0001) for all measured outcomes; the iHOT-12 (42 versus 65), VAS for global hip function (48 versus 68), HSAS (2.5 versus 3), EQ5D index (0.62 versus 0.76), EQ VAS (69 versus 75) and different HAGOS subscales (54 versus 72, 47 versus 67, 56 versus 75, 40 versus 61, 33 versus 56, 31 versus 55). At follow-up, 56 (82%) patients reported that they was satisfied with the outcome of surgery. Arthroscopic treatment for patients with FAI in the presence of mild to moderate OA resulted in statistically significant and clinically relevant improvements in outcome measures related to pain, symptoms, function, physical activity level and quality of life in the majority of patients.
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| 18. |
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| 19. |
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| 20. |
- Öhlin, Axel, 1990, et al.
(författare)
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Good 5-year outcomes after arthroscopic treatment for femoroacetabular impingement syndrome
- 2020
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Ingår i: Knee Surgery, Sports Traumatology, Arthroscopy. - : Springer Science and Business Media LLC. - 0942-2056 .- 1433-7347. ; 28, s. 1311-1316
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Tidskriftsartikel (refereegranskat)abstract
- © 2019, The Author(s). Purpose: The purpose of the present study was to evaluate the outcome of arthroscopic treatment for femoroacetabular impingement (FAI) syndrome 5 years post-surgery using patient-reported outcome scores (PROMs) validated for a young and active population with hip complaints. Methods: Patients were prospectively included in the study. A total of 184 patients [males = 110 (59.8%), females = 74 (40.2%)], with mean age 38.0, underwent arthroscopic treatment for FAI syndrome and were analysed. Preoperatively and at the 5-year follow-up, patients completed a set of self-administered web-based PROMs consisting of the International Hip Outcome Tool (iHOT-12), the Copenhagen Hip and Groin Outcome Score (HAGOS), the Hip Sports Activity Scale (HSAS), the EuroQoL-5 Dimension Questionnaire (EQ-5D), the EQ-Visual Analogue Scale (VAS) and the VAS for overall hip function and overall satisfaction. The Wilcoxon signed rank test was used to compare preoperative PROM values with those obtained at the 5-year follow-up. Results: A comparison of preoperative PROM scores and those obtained at the 5-year follow-up revealed statistically significant improvements for all outcome scores (p < 0.05), except for the HSAS score, which were unchanged; iHOT-12 (42.9 vs 67.2), HAGOS different subscales (50.2 vs 69.6, 55.7 vs 76.1, 59.2 vs 72.3, 41.1 vs 66.4, 30.8 vs 60.2, 31.6 vs 60.4), EQ-5D (0.570 vs 0.742), EQ-VAS (66.6 vs 74.4), HSAS (3.13 vs 3.17) and VAS for overall hip function (47.9 vs 69.2). At the 5-year follow-up, 154 patients reported that they were satisfied with surgery (84.6%). Survivorship at the 5-year follow-up was 86.4%. Conclusion: Arthroscopic treatment for FAI syndrome yields good patient-reported outcome at the 5-year follow-up. Level of evidence: II.
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| 21. |
- Öhlin, Axel, 1990, et al.
(författare)
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Predictors of outcome at 2-year follow-up after arthroscopic treatment of femoro-acetabular impingement
- 2017
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Ingår i: Journal of Hip Preservation Surgery. - : Oxford University Press (OUP). - 2054-8397. ; 4:3, s. 224-230
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Tidskriftsartikel (refereegranskat)abstract
- Femoro-acetabular impingement (FAI) is a common cause of hip pain and dysfunction in the young and active population. Despite reports of good short-term outcomes following treatment for FAI, less is known about the possible preoperative predictors of treatment outcome. The purpose of this study was to identify predictors of treatment outcome, using a patient-reported outcome measurement score (PROM) validated for use in a young and active population undergoing arthroscopic surgery for FAI. Patients were prospectively enrolled and analysed using the PROM International Hip Outcome Tool (iHOT-12) preoperatively and at a 2-year follow-up. Predictors of treatment outcome chosen for analysis were age, gender, duration of symptoms until surgery, level of cartilage damage, preoperative score and FAI type. A total of 198 patients, 122 males and 76 females (M: 61.6%, F: 38.4%), with a mean age of 41±12.1 years, were analysed. The preoperative iHOT-12 score correlated with the postoperative iHOT-12 score at the 2-year follow-up. For one iHOT-12 point positive difference preoperatively, an additional 0.65 points were gained postoperatively at the 2-year follow-up (P≤0.001). Age, gender, symptom duration until surgery, level of cartilage damage and FAI type did not have a statistically significant correlation to the postoperative score. Preoperative hip function as measured by the iHOT-12 is a potential predictor of outcome following FAI surgery relative to other factors.
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| 22. |
- Öhlin, Axel, 1990, et al.
(författare)
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Quality Assessment of Prospective Cohort Studies Evaluating Arthroscopic Treatment for Femoroacetabular Impingement Syndrome: A Systematic Review
- 2019
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Ingår i: Orthopaedic Journal of Sports Medicine. - : SAGE Publications. - 2325-9671. ; 7:5
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Forskningsöversikt (refereegranskat)abstract
- Background: Femoroacetabular impingement (FAI) syndrome is a cause of pain and reduced range of motion in the hip joint. Given the limited number of randomized controlled trials, prospective cohort studies constitute the dominant part of the available prospective evidence evaluating relevant clinical outcomes after arthroscopic hip surgery for FAI. Purpose: To assess the methodological quality of prospective cohort studies evaluating arthroscopic surgery for FAI and to determine whether there has been an improvement in methodological quality over time. Study Design: Systematic review; Level of evidence, 4. Methods: A systematic literature search was performed in PubMed, Embase (OvidSP), and the Cochrane Library. Included studies were clinical prospective cohort studies of primary arthroscopic surgery for cam and/or pincer morphology FAI. Methodological quality was assessed with the Methodological Index for Non-randomized Studies (MINORS). The mean MINORS score for studies published during the first 5 years of the period was compared with those published during the last 5 years to evaluate methodological improvement over time. The methodological quality of randomized controlled trials was also assessed with the Coleman Methodology Score. Results: The search yielded 53 studies. There were 34 noncomparative studies, 15 nonrandomized comparative studies, and 4 randomized controlled trials. The included studies were published between 2008 and 2017. The mean +/- SD MINORS score for noncomparative and comparative studies was 10.4 +/- 1.4 of 16 possible and 18.7 +/- 2.0 of 24 possible, respectively. The mean Coleman Methodology Score for randomized controlled trials was 79.0 +/- 7.0 of 100 possible. Conclusion: The methodological quality of prospective cohort studies evaluating arthroscopic surgery for FAI is moderate for comparative and noncomparative studies. Common areas for improvement include unbiased assessment of study endpoints and prospective sample-size calculations. Despite an increase in the number of published studies, an improvement in methodological quality over time was not observed.
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| 23. |
- Öhlin, Axel, 1990, et al.
(författare)
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The evolution of femoroacetabular impingement surgical management as a model for introducing new surgical techniques
- 2020
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Ingår i: Knee Surgery, Sports Traumatology, Arthroscopy. - : Springer Science and Business Media LLC. - 0942-2056 .- 1433-7347. ; 28, s. 1333-1340
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Tidskriftsartikel (refereegranskat)abstract
- Introducing new surgical techniques and concepts can be difficult. There are many hurdles to overcome initially, such as the learning curve, equipment and technique development, before a standard of care can be established. In the past, new surgical techniques have been developed, and even widely accepted, before any scientific evaluation has been made. At that stage, it may be too late properly to evaluate the effectiveness of treatments, as the objectiveness and/or randomisation process may be obstructed. Since the introduction of evidence-based medicine (EBM), there have been high standards of scientific rigour to prove the efficacy of treatments. Based on the nature of evidence-based acceptance, innovations cannot be subjected to this final process before their evolution process is complete and, as a result, there is a need for the staged scientific development of new surgical techniques that should be adopted. This paper presents a model for this kind of stepwise introduction based on the actual evolution of FAI syndrome surgery. By following a scientific algorithmic methodology, new surgical techniques and concepts can be introduced in a stepwise manner to ensure the evidence-based progression of knowledge. © 2019, European Society of Sports Traumatology, Knee Surgery, Arthroscopy (ESSKA).
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| 24. |
- Öhlin, Axel, 1990, et al.
(författare)
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The Hip Sports Activity Scale for patients with femoroacetabular impingement syndrome — Validation in Swedish
- 2019
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Ingår i: Translational Sports Medicine. - : Hindawi Limited. - 2573-8488. ; 2:4, s. 209-213
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Tidskriftsartikel (refereegranskat)abstract
- Purpose: To translate and culturally adapt the Hip Sports Activity Scale (HSAS) to Swedish and validate the Swedish version in patients with femoroacetabular impingement (FAI) syndrome. Materials and Method: The original German version was translated to Swedish. To determine reliability, validity, and floor and ceiling effects, a questionnaire set consisting of the Swedish version of the HSAS, the Copenhagen Hip and Groin Outcome Score (HAGOS), the short version of the international hip outcome tool, and the Tegner Activity Scale was completed pre‐operatively by 30 patients planned for arthroscopic hip surgery for FAI syndrome. To determine responsiveness, pre‐operative and one‐year follow‐up HSAS data from 30 patients treated with arthroscopic hip surgery for FAI syndrome were collected. Results: For test‐retest reliability, the interclass correlation was 0.930. The HSAS correlated to the Tegner score (r = 0.794, P < 0.01), as well as to the HAGOS subscale of “physical activity” (r = 0.436, P < 0.05). Cohen's effect size and the standardized response mean were 0.25 and 0.28, respectively. Ceiling and floor effects were between 7% and 10%. Conclusion: The Swedish version of the HSAS is a reliable and valid measurement to determine sports activity levels in patients with FAI syndrome.
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