scholarly journals Mapping EQ-5D-3L from the Knee Injury and Osteoarthritis Outcome Score (KOOS)

2019 ◽  
Vol 29 (1) ◽  
pp. 265-274
Author(s):  
Ali Kiadaliri ◽  
Monica Hernández Alava ◽  
Ewa M. Roos ◽  
Martin Englund
Keyword(s):  
Disease Severity ◽  
Knee Injury ◽  
Cruciate Ligament ◽  
Simulated Data ◽  
Probit Model ◽  
Original Data ◽  
Cost Utility ◽  
Superior Performance ◽  
Outcome Score ◽  
Mapping Models

Abstract Purpose To develop a mapping model to estimate EQ-5D-3L from the Knee Injury and Osteoarthritis Outcome Score (KOOS). Methods The responses to EQ-5D-3L and KOOS questionnaires (n = 40,459 observations) were obtained from the Swedish National anterior cruciate ligament (ACL) Register for patients ≥ 18 years with the knee ACL injury. We used linear regression (LR) and beta-mixture (BM) for direct mapping and the generalized ordered probit model for response mapping (RM). We compared the distribution of the original data to the distributions of the data generated using the estimated models. Results Models with individual KOOS subscales performed better than those with the average of KOOS subscale scores (KOOS5, KOOS4). LR had the poorest performance overall and across the range of disease severity particularly at the extremes of the distribution of severity. Compared with the RM, the BM performed better across the entire range of disease severity except the most severe range (KOOS5 < 25). Moving from the most to the least disease severity was associated with 0.785 gain in the observed EQ-5D-3L. The corresponding value was 0.743, 0.772 and 0.782 for LR, BM and RM, respectively. LR generated simulated EQ-5D-3L values outside the feasible range. The distribution of simulated data generated from the BM model was almost identical to the original data. Conclusions We developed mapping models to estimate EQ-5D-3L from KOOS facilitating application of KOOS in cost-utility analyses. The BM showed superior performance for estimating EQ-5D-3L from KOOS. Further validation of the estimated models in different independent samples is warranted.

scholarly journals Psychological, social and contextual factors across recovery stages following a sport-related knee injury: a scoping review

2020 ◽  
Vol 54 (19) ◽  
pp. 1149-1156 ◽  
Author(s):  
Linda K Truong ◽  
Amber D Mosewich ◽  
Christopher J Holt ◽  
Christina Y Le ◽  
Maxi Miciak ◽  
...  
Keyword(s):  
Social Support ◽  
Knee Injury ◽  
Contextual Factors ◽  
Cruciate Ligament ◽  
Return To Sport ◽  
Active Role ◽  
Original Data ◽  
Time Loss ◽  
Scoping Reviews ◽  
Meta Analyses

ObjectiveTo explore the role of psychological, social and contextual factors across the recovery stages (ie, acute, rehabilitation or return to sport (RTS)) following a traumatic time-loss sport-related knee injury.Material and methodsThis review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Extension for Scoping Reviews and Arksey and O’Malley framework. Six databases were searched using predetermined search terms. Included studies consisted of original data written in English that identified or described a psychological, social or contextual factor related to recovery after a traumatic time-loss sport-related knee injury. Two authors independently conducted title–abstract and full-text reviews. Study quality was assessed using the Mixed Methods Appraisal Tool. Thematic analysis was undertaken.ResultsOf 7289 records, 77 studies representing 5540 participants (37% women, 84% anterior cruciate ligament tears, aged 14–60 years) were included. Psychological factors were investigated across all studies, while social and contextual factors were assessed in 39% and 21% of included studies, respectively. A cross-cutting concept of individualisation was present across four psychological (barriers to progress, active coping, independence and recovery expectations), two social (social support and engagement in care) and two contextual (environmental influences and sport culture) themes. Athletes report multiple barriers to recovery and valued their autonomy, having an active role in their recovery and diverse social support.ConclusionDiverse psychological, social and contextual factors are present and influence all stages of recovery following a traumatic sport-related knee injury. A better understanding of these factors at the time of injury and throughout rehabilitation could assist with optimising injury management, promoting RTS, and long-term health-related quality-of-life.

Predictors Of Outcome Following Anterior Cruciate Ligament Reconstruction: A Prospective Cohort Study In Uk Sports Medicine

2019 ◽  
Vol 26 (6) ◽  
pp. 7-7
Author(s):  
Bradley Stephen Neal ◽  
Stuart Miller ◽  
Claire Small ◽  
Simon David Lack
Keyword(s):  
Quality Of Life ◽  
Anterior Cruciate Ligament ◽  
Anterior Cruciate Ligament Reconstruction ◽  
Knee Injury ◽  
Ligament Reconstruction ◽  
Cruciate Ligament ◽  
Cruciate Ligament Reconstruction ◽  
Outcome Score ◽  
Anterior Cruciate

Background/Aims Following anterior cruciate ligament reconstruction, patients are reported to be at greater risk of re-rupture if they fail to meet structured discharge criteria. This prospective cohort study aimed to provide objective and subjective measures guiding safe return to play of amateur athletes following anterior cruciate ligament reconstruction. Methods Primary anterior cruciate ligament reconstruction patients presenting to Pure Sports Medicine were invited to participate. Successful return to play was determined using the Patient-Specific Functional Scale at the primary end point (9/12 post-operative), with scores >8 indicating successful outcomes. Secondary data were collected at baseline (Knee Injury and Osteoarthritis Outcome Score, Anterior Cruciate Ligament-Quality of Life), 3/12 (Knee Injury and Osteoarthritis Outcome Score, Anterior Cruciate Ligament-Quality of Life, quadriceps and hamstrings dynamometry), 6/12 (Knee Injury and Osteoarthritis Outcome Score, Anterior Cruciate Ligament-Quality of Life, quadriceps and hamstrings dynamometry, single/triple hop) and 9/12 post-operative (Knee Injury and Osteoarthritis Outcome Score, Anterior Cruciate Ligament-Quality of Life, quadriceps and hamstrings dynamometry, single/triple hop and slalom run). Binary logistic regression was used to determine the association between secondary data and the primary outcome. Results A total of 90 participants with anterior cruciate ligament reconstruction were recruited from March 2017 to June 2018, and 87 participants consented to baseline measures. To date, 29 participants have completed full data collection, with 12 participants determined to have a successful outcome. A lower hamstrings:quadriceps ratio in the contralateral limb at 3/12 post-operative (odds ratio: 0.005, 95% confidence interval: 0.001–0.89, P=0.045) and a higher Anterior Cruciate Ligament-Quality of Life score at 6/12 post-operative (odds ratio: 1.1, 95% confidence interval: 0.02–1.20, P=0.012) are associated with positive 9/12 post-operative outcomes. Conclusions Preliminary data analysis indicates that both hamstrings:quadriceps ratio function and participant psychology are associated with positive outcomes post-anterior cruciate ligament reconstruction.

scholarly journals An Investigation of Knee Injury Profiles among Iranian Elite Karatekas: Observations from a Cross-Sectional Study

2021 ◽  
Vol 18 (13) ◽  
pp. 6888
Author(s):  
Hamidreza Naserpour ◽  
Julien S. Baker ◽  
Amir Letafatkar ◽  
Giacomo Rossettini ◽  
Frédéric Dutheil
Keyword(s):  
Knee Injury ◽  
Cruciate Ligament ◽  
Knee Injuries ◽  
Cross Sectional Study ◽  
Lower Extremity Injury ◽  
Sectional Study ◽  
Positive Health ◽  
Sports Activity ◽  
Cross Sectional ◽  
National Team

Karate training, despite the many positive health benefits, carries a risk of injury for participants. The current cross-sectional study aimed to investigate knee injury profiles among Iranian elite karatekas. Participants who attended the national team qualifiers, which included 390 male Kumite karatekas (age 24 ± 3 years old and weight 63 ± 12 kg), participated in this study. Information on knee injuries (injury history, type of injury mechanisms, and effects of knee symptoms on the ability to perform daily activities and recreational activities) were obtained using the Knee Outcome Survey (KOS). Using Pearson’s correlation coefficient, the study examined the relationships between different variables, including KOS subscales and levels of self-reported knee joint function. Our findings indicated that 287 karatekas (73.6%) experienced knee injuries. The anterior cruciate ligament (ACL) rupture (6.9%), articular cartilage (5.4%), and meniscus damage (3.8%) were the main typology of injury. In addition, there were no differences in knee injuries between the non-dominant and dominant legs. Most injuries occurred during the preparatory period (n = 162, 50%), especially during training periods. The KOS subscales scores (Mean ± Sd) for activities of daily living (ADL) and sports activity (SAS) were, respectively, 89 ± 11 and 91 ± 9. The self-reported scores for both the ADL and SAS subscales were, respectively, 89 ± 11 and 90 ± 10. Pearson coefficients of ADL and SAS subscales with their self-reported score were r = 0.761 (p < 0.0001) and r = 0.782 and (p < 0.0001), respectively. The profile of knee injuries in the current investigation is similar to previous surveys that reported lower extremity injury patterns. The findings of this study could be adopted to inform practice aimed at planning interventions for the reduction and prevention of knee injuries among karatekas.

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