ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2022
The severity of patellar and trochlear dysplasia are correlated.
Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 25 citations in OpenAlex.
- Differences between skeletally immature and mature patients in recurrent patellar dislocation: a radiological study.Journal of orthopaedic surgery and research · 2026Article
- Patellar Morphology in Recurrent Lateral Patellofemoral Instability: Associations With Risk Factors and Postoperative Outcomes.Orthopaedic journal of sports medicine · 2026Article
- Outcomes of a Combined Procedure of Tibial Tubercle Proximalization, MPFL Reconstruction and Extensive Lateral Release for Revision Treatment of Habitual Patellar Dislocation in Flexion in Skeletally Mature Patients.Orthopaedic journal of sports medicine · 2025Article
- Thin flap sulcus-deepening trochleoplasty in patellar instability yields good functional outcomes without progressive cartilage deterioration in the short-term follow-up-A retrospective single-surgeon cohort study.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2025Article
- Bipartite patella revisited: the not so asymptomatic accessory ossicle.Pediatric radiology · 2025Article
- Clinical outcomes after surgery for knee multiligament injuries were comparable between patients with and without medial patellofemoral ligament injuries.BMC musculoskeletal disorders · 2025Article
- Habitual patellar dislocation exhibits less severe rotational deformities but poorer trochlear development and higher incidence of patella baja compared with recurrent patellar dislocation in skeletally mature patients.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2025Article
- Evaluation of Patellar Dysplasia and Postoperative Pain After Mini-Open, Thin-Flap Trochleoplasty: A Retrospective Analysis of 75 Consecutive Cases.Orthopaedic journal of sports medicine · 2024Article
- Prevalence of trochlear dysplasia in an 1162 retrospective cohort study using CT scans.BMC musculoskeletal disorders · 2024Article
- Epidemiology of Lateral Patellar Dislocation Including Bone Bruise Incidence: Five Years of Data from a Trauma Center.Orthopaedic surgery · 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
- Two-type classification system for femoral trochlear dysplasia in recurrent patellar instability based on three-dimensional morphology.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023Article
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposePatellar instability is a frequent clinical situation in adolescents and young adults. One of the most important risk factors of this condition is trochlea dysplasia. Few studies have analyzed the role of patellar dysplasia. The objective of this paper was to assess the correlation between trochlear and patellar dysplasia. The hypothesis is that patellar dysplasia increased in parallel with femoral trochlear dysplasia.
methodsThe study included patients operated on at least one knee for patellar instability between 2008 and 2020. For these patients, symptomatic knees (operated or not) were included if they had lateral and patellofemoral skyline radiographs. Two blinded observers categorized each trochlear and patellar dysplasia according to the Dejour and Wiberg classifications. Patellar height was also measured by applying the Caton-Deschamps index.
resultsA total of 100 patients were selected, involving 149 symptomatic knees. A significant correlation between trochlear and patellar dysplasia types was found (0.82; p < 0.0001). Dejour types B and C of trochlear dysplasia were significantly more often associated with patellar dysplasia than Dejour type A (p = 0.033 and p = 0.019, respectively). Moreover, severe Wiberg 3 patellar dysplasia was significantly associated with type D Dejour trochlear dysplasia than with the sum of all other Dejour types taken together (p < 0.0001).
conclusionThis study confirms a linear correlation between the severity of patellar and trochlear dysplasia. Further studies are needed to evaluate the place of patellar dysplasia in the therapeutic strategy. LEVEL OF EVIDENCE: Level IV.
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