| 1. |
- Abrahamson, Josefin, et al.
(author)
-
Hip pain and its correlation with cam morphology in young skiers-a minimum of 5 years follow-up
- 2020
-
In: Journal of Orthopaedic Surgery and Research. - : Springer Science and Business Media LLC. - 1749-799X. ; 15:1
-
Journal article (peer-reviewed)abstract
- BackgroundThere is conflicting evidence regarding the association between cam morphological changes and hip pain, and it remains unclear who with cam morphology will develop hip pain and who will not. This study aimed to investigate the correlation between cam morphology, hip pain, and activity level at a 5-year follow-up in young Alpine and Mogul skiers.MethodAll students (n = 76) at angstrom re Ski National Sports High School were invited and accepted participation in this prospective study at baseline. Magnetic resonance imaging (MRI) of both hips was conducted to evaluate the presence of cam morphology (alpha -angle >= 55 degrees) and its size alongside the reporting of hip pain, type, and frequency of training by the Back and hip questionnaire, at baseline. After 5 years, the skiers were invited to complete a shortened version of the same questionnaire.ResultsA total of 60 skiers (80%) completed the follow-up questionnaire, of which 53 had concomitant MRI data. Cam morphology was present in 25 skiers (47.2%, 39 hips). Hip pain at baseline and at follow-up was reported in 17 (28.3%) and 22 (36.7%) skiers, respectively. No correlations were found between the activity level, the frequency, and the size of cam morphology and hip pain, except for the right hip alpha -angle at 1 o'clock and hip pain in skiers with cam morphology at baseline (r(s) = 0.49; P = 0.03) and at follow-up (r(s) = 0.47; P = 0.04). A total of 73.3% skiers had retired, of which 48% reported this was due to injuries.ConclusionHip pain was not shown to be correlated, or had a low correlation, with activity level and the presence and size of cam morphology in young skiers on a 5-year follow-up. Based on these results, cam morphology or activity level did not affect hip pain to develop during 5 years of follow-up in young skiers. Furthermore, this study highlights that almost 75% of young elite skiers had retired from their elite career with almost 50% reporting that this was due to injuries sustained from skiing.
|
|
| 2. |
- Aminoff, Anna Swärd
(author)
-
Hip range of motion and the prevalence of cam morphology in young athletes - clinical and radiological studies
- 2020
-
Doctoral thesis (other academic/artistic)abstract
- Abstract Hip and groin pain is common among athletes and the active population, and one important cause for this is femoroacetabular impingement syndrome (FAIS). To meet the diagnosis of FAIS, a combination of radiological findings (cam and/or pincer morphology), hip pain and clinical findings (reduced hip joint range of motion (ROM) and/or positive anterior impingement test (FADIR)) needs to be present. To quantify a cam morphology, the α-angle is often measured, and a cam morphology is usually considered present with an α-angle of ≥55°. Factors that have been associated with the development of cam morphology are genetics, ethnicity and participation in high impact sports during the pubertal growth spurt. Why some individuals develop FAIS and others do not, in the presence of a cam morphology, is still unknown. Therefore, there are still many questions that need to be answered regarding the aetiology, prevalence, impacts of different types of sports and loads, and treatment of cam/pincer and FAIS. Cam-type FAIS has also been associated with early hip osteoarthritis, and therefore this thesis focuses on cam morphology of the hip. The overall aim of this thesis was to investigate the prevalence of cam morphology, hip ROM, hip pain and FAIS among young elite skiers and football players. Further, to investigate the relationship between hip ROM and cam, and hip range of motion and pelvic tilt (with and without cam morphology). Study 1 is a cross-sectional study, including 87 skiers and 27 non-athletes with a mean age of 17.7 (SD1.4) years, where the aim was to examine the relationship between the clinical examination of the hip and cam morphology. The study population was divided into cam- and no cam-groups depending on the -angle measured with MRI. The main findings showed that reduced hip joint internal rotation, hip flexion and a positive anterior impingement test were associated with MRI-verified cam. Study 2 is a cross-sectional study with the aim to investigate the effect of changes in pelvic tilt on hip ROM in individuals with and without cam. The same study population was included as in Study 1. The main finding was that dynamic changes in pelvic tilt significantly influenced hip ROM, independent of cam morphology. Study 3 is a cross-sectional study investigating the prevalence of cam morphology (-angle >55°) in a group of elite Mogul and Alpine skiers, compared with non-athletes and between the sexes. The same study population was included as in Study 1. The skiers had a significantly higher prevalence of cam compared with the non-athletes. A significant difference was also found between males and females, with males having a higher prevalence of cam. Study 4 is a cross-sectional study with the aim to investigate the difference in hip ROM, hip pain, cam morphology and FAIS in young athletes. One-hundred-and-thirty-five athletes (60 male soccer players, 40 male skiers and 35 female skiers) with a mean age of 17.7 (SD 1.2) years were included. Please find results in manuscript.
|
|
| 3. |
- Aminoff, Anna Swärd, et al.
(author)
-
Young elite Alpine and Mogul skiers have a higher prevalence of cam morphology than non-athletes
- 2020
-
In: Knee Surgery Sports Traumatology Arthroscopy. - : Springer Science and Business Media LLC. - 0942-2056 .- 1433-7347. ; 28:4, s. 1262-1269
-
Journal article (peer-reviewed)abstract
- Purpose To investigate the prevalence of cam morphology in (1) a group of young elite Mogul and Alpine skiers compared with non-athletes and (2) between the sexes. Method The hip joints of 87 subjects [n = 61 young elite skiers (29 females and 32 males) and n = 26 non-athletes (17 females and 9 males)] were examined using MRI, for measurements of the presence of cam morphology (alpha-angle >= 55). Results The skiers had a significantly higher prevalence of cam morphology compared with the non-athletes (49% vs 19%, p = 0.009). A significant difference (p < 0.001) was also found between females and males, where 22% of the females and 61% of the males had cam morphology. Among the skiers, there was also a significant difference (p < 0.001) between the sexes, where 28% of the females and 68% of the males had cam morphology. This difference between the sexes was not found in the non-athletic group. No significant differences were found between Mogul and Alpine skiers. Conclusion Young male elite skiers have a higher prevalence of cam morphology of the hips compared with non-athletes.
|
|
| 4. |
- Hageman, Isabel C., et al.
(author)
-
A Quality Assessment of the ARM-Net Registry Design and Data Collection
- 2023
-
In: Journal of Pediatric Surgery. - : Elsevier BV. - 0022-3468. ; 58:10, s. 1921-1928
-
Journal article (peer-reviewed)abstract
- Background: Registries are important in rare disease research. The Anorectal Malformation Network (ARM-Net) registry is a well-established European patient registry collecting demographic, clinical, and functional outcome data. We assessed the quality of this registry through review of the structure, data elements, collected data, and user experience. Material and methods: Design and data elements were assessed for completeness, consistency, usefulness, accuracy, validity, and comparability. An intra- and inter-user variability study was conducted through monitoring and re-registration of patients. User experience was assessed via a questionnaire on registration, design of registry, and satisfaction. Results: We evaluated 119 data elements, of which 107 were utilized and comprised 42 string and 65 numeric elements. A minority (37.0%) of the 2278 included records had complete data, though this improved to 83.5% when follow-up elements were excluded. Intra-observer variability demonstrated 11.7% incongruence, while inter-observer variability was 14.7%. Users were predominantly pediatric surgeons and typically registered patients within 11–30 min. Users did not experience any significant difficulties with data entry and were generally satisfied with the registry, but preferred more longitudinal data and patient-reported outcomes. Conclusions: The ARM-Net registry presents one of the largest ARM cohorts. Although its collected data are valuable, they are susceptible to error and user variability. Continuous evaluations are required to maintain relevant and high-quality data and to achieve long-term sustainability. With the recommendations resulting from this study, we call for rare disease patient registries to take example and aim to continuously improve their data quality to enhance the small, but impactful, field of rare disease research. Level of Evidence: V.
|
|
| 5. |
- Lorentz, Harri, et al.
(author)
-
Acquisition of supply market intelligence – An information processing perspective
- 2020
-
In: Journal of Purchasing and Supply Management. - : Elsevier BV. - 1478-4092. ; 26:5
-
Journal article (peer-reviewed)abstract
- The capability to develop and sustain superior knowledge of markets and supply chains, or supply market intelligence (SMI), is an important element in increasing the strategic relevance of purchasing and supply management (PSM). This study draws on information processing theory (IPT) to shed light on how firms acquire SMI. In particular, the study aims to identify the drivers and mechanisms of information processing in SMI acquisition and to explore how the two constructs are related. Our findings emerged from an abductive multiple case study including 22 SMI tasks in eight case companies operating in various manufacturing industries. We find that the drivers of information processing needs in SMI acquisition are related either to uncertainty or equivocality. Uncertainty describes a situation in which decision-makers may be ignorant of a variable's value while equivocality describes a situation in which they may be ignorant of the variable's existence. We identify four structural mechanisms and three information technology mechanisms for information processing in the SMI context. We also find that equivocality seems to trump uncertainty in determining the use of the identified SMI acquisition mechanisms. In addition to elaborating IPT in the SMI context and exploring the theoretical foundations of SMI, we offer practitioners a framework for supporting the design of SMI practices in procurement organisations.
|
|
| 6. |
- Morandi, Anna, et al.
(author)
-
Urological Impact of Epididymo-orchitis in Patients with Anorectal Malformation : An ARM-Net Consortium Study
- 2022
-
In: European Journal of Pediatric Surgery. - : Georg Thieme Verlag KG. - 0939-7248 .- 1439-359X. ; 32:6, s. 504-511
-
Journal article (peer-reviewed)abstract
- Introduction To investigate the current experience of the ARM-Net Consortium in the management of epididymo-orchitis (EO) in patients with anorectal malformations (ARMs), and to identify specific risk factors and the need for urological care involvement. Materials and Methods We retrospectively collected data of EO in patients with ARM between 2015 and 2019. Data on urological aspects, ARM type, surgical approach, associated anomalies, diagnosis, and treatment of EO were collected and analyzed. Results Twenty-nine patients were reported by 12 centers. Twenty-six patients with EO (90%) had ARM with a rectourinary fistula. Median age at first EO was 2 years (range: 15 days-27 years). Twenty patients (69%) experienced multiple EO, and 60% of recurrences were ipsilateral. Associated urological anomalies included vesicoureteral reflux (48%), urethral anomalies (41%), neurogenic bladder (41%), and ectopic vas (10%). A positive urine culture during EO was present in 69%. EO was treated with antibiotics (90%), limiting surgical exploration to 14%. Prevention of recurrences included surgery (bulking agents 15%, vasectomy 15%, and orchiectomy 5%) and antibiotic prophylaxis (20%). Conclusion Urologists may encounter patients with EO in ARM patients, frequently with positive urine culture. An appropriate urologic work-up for most ARM patients is necessary to identify and treat underlying risk factors. A practical scheme for the work-up is suggested for a close collaboration between pediatric surgeons and urologists.
|
|
| 7. |
- Stjernbrandt, Albin, et al.
(author)
-
Neurosensory and vascular symptoms and clinical findings in the hands of Arctic open-pit miners in Sweden and Norway : a descriptive study
- 2023
-
In: International Journal of Circumpolar Health. - : Taylor & Francis. - 1239-9736 .- 2242-3982. ; 82:1
-
Journal article (peer-reviewed)abstract
- This cross-sectional study aimed to describe exposure to cold climate and hand-arm vibration (HAV) as well as neurosensory and vascular symptoms and clinical findings among open-pit Arctic miners. It was based on data from questionnaires and physical examinations, including 177 men and 75 women from two open-pit mines in Sweden and Norway (response rate 54%). Working outdoors or in an unheated building or machine for at least two hours per day was reported by 44% and HAV exposure of the same duration by 10%. Neurosensory symptoms (e.g. reduced perception of touch) in the hands were reported by 47% and Raynaud’s phenomenon by 14%. In brief conclusion, the study showed that Arctic miners were commonly exposed to both cold temperatures and HAV. They also reported a broad range of neurosensory and vascular symptoms in their hands and had abnormal clinical findings related to the symptoms. The results emphasise the need for additional preventive measures in this occupational setting.
|
|
| 8. |
- Stjernbrandt, Albin, et al.
(author)
-
Raynaud's phenomenon in the feet of Arctic open-pit miners
- 2024
-
In: International Journal of Circumpolar Health. - : Taylor & Francis. - 1239-9736 .- 2242-3982. ; 83:1
-
Journal article (peer-reviewed)abstract
- The literature on Raynaud's phenomenon (RP) in the feet is scarce, especially in the occupational setting. The primary aim of our study was to investigate the occurrence of RP in the feet of miners. As part of the MineHealth project, written surveys and clinical examinations were completed by 260 Arctic open-pit miners working in northern Sweden and Norway (participation rate 53.6%). Data on RP were collected using standardised colour charts and questionnaire items. Clinical examination included assessing the perception of vibration and pain in both feet. There were eight women and three men who reported RP in the feet. Four also had RP in their hands but none acknowledged any first-degree relatives with the condition. Nine reported exposure to foot-transmitted vibration and one to hand-arm vibration. Seven showed signs of neurosensory injury in the feet. To conclude, the occurrence of RP in the feet of miners was 4.4%. Most cases with RP in the feet did not report the condition in the hands and were exposed to vibration transmitted directly to the feet. There were no reports of a hereditary component. Most cases with RP in the feet also had clinical findings suggestive of peripheral neuropathy in the feet.
|
|
| 9. |
- Thoreson, Olof, 1981, et al.
(author)
-
The one-year prevalence of nonspecific back pain in public primary health care establishments among 1.7 million people in western Sweden
- 2020
-
In: Primary Health Care Research and Development. - : Cambridge University Press (CUP). - 1463-4236 .- 1477-1128. ; 21
-
Journal article (peer-reviewed)abstract
- Aim: The one-year prevalence of diagnosed nonspecific back pain in Sweden is not known. Thus, this observational register-based study aimed to evaluate this prevalence by using data from the Region Vastra Gotaland, inhabiting 1.7 million people. Methods: Data from 2014 to 2018 were extracted from the VEGA database register. This register holds all health data from the publicly funded health care establishments in Region Vastra Gotaland. Aggregated data are presented as the one-year prevalence of unique individuals diagnosed with nonspecific back pain (i.e., the ICD-10 code M54). Stratification by health care level, gender, age, and M54 sub-diagnoses were made. Findings: Between 2014 and 2018, the annual prevalence of diagnosed nonspecific back pain in public primary health care increased from 4.8% to 6.0% (26% increase, P < 0.001, CI 25-27%). In 2018, the one-year prevalence was 7.2% among women and 4.8% among men (50% difference, P = 0.001, CI 49-52%). The one-year prevalence increased by age, and the highest figure (11%) was seen in the age group of 80-84. Low back pain, M54.5, was the most common sub-diagnosis. The one-year prevalence was significantly higher (P < 0.001) among women in all the M54 sub-diagnoses. Conclusion: The one-year prevalence of diagnosed nonspecific back pain was 6% in public primary health care in 2018 and has increased since 2014. Women were diagnosed considerably more frequently than men. Publicly funded rehabilitation efforts, as well as actions focusing on the prevention of back pain, is probably money well spent.
|
|
| 10. |
- Witwit, Wisam, et al.
(author)
-
No Significant Change in MRI Abnormalities or Back Pain Prevalence in the Thoraco-Lumbar Spine of Young Elite Skiers Over a 2-Year Follow-Up
- 2022
-
In: Open Access Journal of Sports Medicine. - 1179-1543. ; 13, s. 69-76
-
Journal article (peer-reviewed)abstract
- Background: Young athletes are at increasing risk for spinal column injuries due to overloading the spine with excessive sports activities, with potential development of complications later in life.Purpose: The purpose of this 2-year follow-up study of young elite skiers and non-athletes was to investigate any potential change in the thoraco-lumbar findings on MIRI and to outline any change in back pain prevalence with continuing sporting activity and age. Study Design: Longitudinal cross-sectional study.Methods: MIRI of the thoraco-lumbar spine was performed on 30 skiers (mean age 20 years, female 43%) and 16 non-athletes (mean age 19, female 75%), available for the 2-year follow-up. The intervertebral discs were evaluated for signal, height, bulge/herniation, and additionally according to Pfirrmann classification, and the endplates were graded according to endplate defect score. Any of the following disc findings was defined as disc degenerative change: reduced signal, reduced height, bulge, or herniation. All participants answered a specific back pain questionnaire.Results: No significant difference in spinal column abnormalities, nor back pain, was found between baseline and 2-year follow-up in neither skiers nor controls. There was significantly higher prevalence of disc degenerative changes in skiers (73%) than in non-athletes (44%, p=0.05). Skiers (63%) had significantly more Pfirrmann grade >= 3 discs compared to non-athletes (25%) (p=0.03). There was no significant difference in number of endplates with score >= 4 between skiers and non-athletes (50% vs 38%, p=0.40) nor in lifetime prevalence of back pain between skiers (46%) and non-athletes (40%).Conclusion: There was no significant change over time of the spinal column MIRI abnormalities, nor back pain prevalence, during a 2-year follow-up of skiers and non-athletes. Young skiers had significantly higher prevalence of spine abnormalities compared with non-athletes. There was no significant difference of the back pain lifetime prevalence in skiers compared with non-athletes.
|
|
