The risk of osteochondral fracture after patellar dislocation is related to patellofemoral anatomy
| Autor: | Jussi P. Repo, Gilber Kask, Ville M. Mattila, Mikko M. Uimonen, Ville T. Ponkilainen, Susanna Hirvinen, Heikki Nurmi, Juha Paloneva |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
030222 orthopedics
medicine.medical_specialty medicine.diagnostic_test Sports medicine business.industry Magnetic resonance imaging 030229 sport sciences Anatomy Logistic regression Condyle 03 medical and health sciences 0302 clinical medicine Propensity score matching Orthopedic surgery medicine Orthopedics and Sports Medicine Surgery Patella business Osteochondral fracture |
| Zdroj: | Knee Surgery, Sports Traumatology, Arthroscopy. 29:4241-4250 |
| ISSN: | 1433-7347 0942-2056 |
| DOI: | 10.1007/s00167-021-06547-2 |
| Popis: | Despite the comprehensive literature on the anatomical risk factors for patellar dislocation, knowledge on the risk factors for subsequent osteochondral fracture (OCF) remains limited. Magnetic resonance imaging was used to compare measures of patellofemoral anatomy in patients with OCF after patellar dislocation and propensity score matched patients without OCF. For differing measures, limit values showing a 50% probability for the occurrence of OCF were calculated using predictive logistic regression modelling. Proportions of abnormal measures in the groups were compared using Chi-square test. The association of anatomical measures with OCF location was examined by comparing subgroup mean values in the different OCF locations. Propensity score matching provided a total of 111 matched pairs of patients with OCF and patients without OCF. The patients with and without OCF differed in patellotrochlear index (PTI; 0.54 [95% CI 0.52–0.57] vs. 0.47 [95% CI 0.45–0.49]; p 0.51 for PTI > 21.1 mm for TT-PCL 0.48 for trochlear facet asymmetry ratio and |
| Databáze: | OpenAIRE |
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