Introduction
Acute traumatic
- Direct blow to the knee.
- Evenly prevalence by gender.
Chronic
- Anatomical malalignment
- Ligamentous laxity
Habitual
Epidemiology
- 5.8 per 100,000 persons
- Occurs 10-20 years
Pathophysiology
Classification
Dejour
Clinical Evaluation
Investigations
X-Ray
- True lateral (30 degrees knee flexion)
- Frontal
- Sunrise / Merchant view (45 degrees knee flexion)
Image interpretation
Management
Surgical management
MPFL reconstruction
TTT
Trochlearplasty
Videos
David Dejour – EFORT 2019
https://efortnet.conference2web.com/#!resources/tbd-d9c10653-2a0f-4b43-a962-4268106912e6
Philippe Tscholl – EFORT 2018
The Relevance Of Femoral Tunnel Positioning In Medial Patellofemoral Ligament Reconstruction On Postoperative Outcome
Philip Schoettle – MPFL Reconstruction
Philip Schoettle – Trochlearplasty
References
Diduch, David R. MD; Kandil, Abdurrahman MD; Burrus, M. Tyrrell MD Lateral Patellar Instability in the Skeletally Mature Patient: Evaluation and Surgical Management, Journal of the American Academy of Orthopaedic Surgeons: June 15, 2018 – Volume 26 – Issue 12 – p 429-439 doi: 10.5435/JAAOS-D-16-00052
Thompson, Peter and Metcalfe, Andrew. Current concepts in the surgical management of patellar instability. The Knee November 11, 2019. Volume 26 (2019) p1171 – 1181. https://doi.org/10.1016/j.knee.2019.11.007