ArticlePloS one2021
Analysis of cartilage injury patterns and risk factors for knee joint damage in patients with primary lateral patella dislocations.
Article in PloS one, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 3 of them syntheses that pooled it.
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Who cites it
10 citing papers in PubMed, 3 syntheses or guidelines pooled it, 13 citations in OpenAlex.
- Frequency of Adjunctive MRI Findings on First-Time Patellar Dislocations in Pediatric Patients: A Systematic Review.The American journal of sports medicine · 2026Pooled it
- Factors associated with an increased risk of osteochondral injuries after patellar dislocations: a systematic review.Journal of orthopaedic surgery and research · 2023Pooled it
- Magnetic resonance imaging is able to detect patellofemoral focal cartilage injuries: a systematic review with meta-analysis.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023Pooled it
- Patellar luxation causes abnormal mechanical loading and joint destruction in the femoral-tibial joint.Bone & joint research · 2026Article
- Risk Factors Associated With Osteochondral Fractures After Lateral Patellar Dislocation Based on Individual Factors.Orthopaedic journal of sports medicine · 2025Article
- Research Progress on Return to Sport After Surgery for Lateral Patellar Dislocation.Orthopedic reviews · 2025Article
- Epidemiology of Lateral Patellar Dislocation Including Bone Bruise Incidence: Five Years of Data from a Trauma Center.Orthopaedic surgery · 2024Article
- 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
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Authors and funding
6 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundLateral patellar dislocation (LPD) frequently causes damage to the knee. Injury patterns and risk factors contributing to such injuries have not yet been examined in detail.
methodsWe retrospectively analyzed 50 consecutive patients with primary LPD. Two reviewers evaluated the MRI images regarding risk factors for LPD (Dejours classification; Caton-Deschamps Index, CDI; distance from the tibial tuberosity to trochlear groove, TT-TG; trochlear depth, TD) as well as joint damages according to the Whole-Organ Magnetic Resonance Imaging Score (WORMS).
results33 male and 17 female patients with a mean age of 23.2 (±9.6) years were included in this study. 52% were classified Dejours ≥ B, 34% had a CDI ≥ 1.3, 22% a TT-TG ≥ 20mm and 52% a TD < 3mm. 49 out of 50 patients (98%) showed abnormalities according to WORMS. The most frequently observed abnormalities were synovitis/effusion (49/50, 98%), bone marrow oedema (44/50, 88%) and cartilage damage (42/50, 84%). Most frequently affected subregions were medial (41/50, 82%) and lateral (31/50, 62%) patella as well as the anterior (43/50, 86%), central (42/50, 84%) and posterior (11/50, 22%) portion of the lateral femoral condyle. There was no significant correlation between any of the examined risk factors and joint damages according to WORMS. Male patients had higher scores regarding total cartilage damage (5.11 vs. 2.56, p = 0.029), total score for the lateral femorotibial joint (3.15 vs. 1.65, p = 0.026) and overall total WORMS score (12.15 vs. 8.29, p = 0.038).
conclusionRisk factors for LPD do not influence the risk of damages to the knee joint after primary LPD. Although LPD is generally known to affect more female than male patients, male patients suffered more severe injuries after primary LPD, particularly of the lateral femorotibial joint. Overall, our results underline the importance of MRI imaging after primary LPD.
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