ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2021
The risk of osteochondral fracture after patellar dislocation is related to patellofemoral anatomy.
Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 4 of them syntheses that pooled it.
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Who cites it
17 citing papers in PubMed, 4 syntheses or guidelines pooled it, 24 citations in OpenAlex.
- Factors associated with an increased risk of osteochondral injuries after patellar dislocations: a systematic review.Journal of orthopaedic surgery and research · 2023Pooled it
- Tibial Tubercle-Trochlear Groove Distance Has Better Diagnostic Reliability Than Tubercle-Posterior Cruciate Ligament Distance For Predicting Patellar Instability: A Systematic Review.Orthopaedic surgery · 2023Pooled it
- Tibial tubercle to trochlear groove distance versus tibial tubercle to posterior cruciate ligament distance for predicting patellar instability: a systematic review.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023Pooled it
- Good clinical outcomes after patellar cartilage repair with no evidence for inferior results in complex cases with the need for additional patellofemoral realignment procedures: a systematic review.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2022Pooled it
- Risk Factor Evaluation for Loose Body Following First-Time Patellar Dislocation in Pediatric Patients.Journal of the Pediatric Orthopaedic Society of North America · 2026Article
- Epidemiology of Knee Articular Cartilage Injuries in Patients Undergoing Arthroscopy: Insights From 25,293 Procedures at a High-Volume Center.Orthopaedic surgery · 2026Article
- High prevalence of generalized ligamentous laxity in patellar dislocation with posterior weight-bearing lateral femoral condyle osteochondral fractures: an observational study and treatment outcomes.Journal of orthopaedic surgery and research · 2026Observational
- Recurrence in Adolescents With First-Time Acute Patellar Dislocation: Comparing Outcomes With and Without Osteochondral Fracture.Orthopaedic journal of sports medicine · 2025Article
- Risk Factors Associated With Osteochondral Fractures After Lateral Patellar Dislocation Based on Individual Factors.Orthopaedic journal of sports medicine · 2025Article
- Low lateral inclination angle, high sulcus angle, high trochlear height and patella alta are risk factors for first lateral patellar dislocation and complete MPFL rupture, comparative study.Journal of experimental orthopaedics · 2025Article
- Effect of Patellar Morphology on the Risk of Osteochondral Fracture after Patellar Dislocation: A Cross-sectional Study.Orthopaedic surgery · 2024Article
- Pediatric osteochondral fractures: clinical insights associate early diagnosis to early rehabilitation via arthroscopy.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2024Observational
- Prevalence and Site of Concomitant Osteochondral Injuries in Patients With Acute Lateral Patellar Dislocation: A Systematic Review and Meta-analysis.Orthopaedic journal of sports medicine · 2024Article
- Lateral trochlear inclination measured by the transepicondylar axis holds potential for evaluating trochlear dysplasia in patients with lateral patellar dislocation.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023Article
- Suprapatellar pouch effusion is associated with an increased risk of neglected osteochondral fractures in primary acute traumatic patellar dislocation: a consecutive series of 113 children.Journal of orthopaedic surgery and research · 2023Article
- Outcomes following the operative treatment of intra-articular fracture combined with medial patellofemoral ligament reconstruction after patellar dislocation.Knee surgery & related research · 2022Article
- Anatomic Risk Factors for Osteochondral Fracture of Acute First-Time Patellar Dislocation in Adolescents: A Retrospective Magnetic Resonance Imaging Study.Evidence-based complementary and alternative medicine : eCAM · 2022Article
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Authors and funding
8 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeDespite the comprehensive literature on the anatomical risk factors for patellar dislocation, knowledge on the risk factors for subsequent osteochondral fracture (OCF) remains limited.
methodsMagnetic 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.
resultsPropensity 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 < 0.001), tibial tubercle-posterior cruciate ligament distance (TT-PCL; 21.6 mm [95% CI 21.0-22.3 mm] vs. 20.5 mm [95% CI 20.0-21.1 mm]; p = 0.013), trochlear depth (2.5 mm [95% CI 2.3-2.7 mm] vs. 3.0 mm [95% CI 2.8-3.2 mm]; p < 0.001) trochlear facet asymmetry ratio (0.54 [95% CI 0.51-0.57] vs. 0.43 [95% CI 0.42-0.45]; p < 0.001) and trochlear condyle asymmetry ratio (1.04 [95% CI 1.03-1.04] vs. 1.05 [95% CI 1.04-1.05]; 0.013. Thresholds for increased OCF risk were > 0.51 for PTI > 21.1 mm for TT-PCL < 2.8 mm for trochlear depth > 0.48 for trochlear facet asymmetry ratio and < 1.04 for trochlear condyle asymmetry ratio.
conclusionIn patients with OCF after patellar dislocation, trochlear configuration and patella vertical location were closer to normal anatomy, whereas patella lateralization was more severe when compared to patients without OCF. These anatomical factors contribute to the risk of OCF during patellar dislocation. LEVEL OF EVIDENCE: III.
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