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Current understanding of the first-time patellar dislocation
Arthrosc Orthop Sports Med 2023;10:10-18
Published online May 1, 2023;  https://doi.org/10.14517/aosm23004
© 2023 Korean Arthroscopy Society and Korean Orthopedic Society for Sports Medicine.

Byung Hoon Lee

Department of Orthopaedics Surgery, Gachon University College of Medicine, Incheon, Korea
Correspondence to: Byung Hoon Lee, https://orcid.org/0000-0002-1548-5691
Department of Orthopaedics Surgery, Gachon University Gil Medical Center, Gachon University College of Medicine, 21 Namdongdaero 774beon-gil, Namdong-gu, Incheon 21565, Korea. Tel: +82-32-460-3384, Fax: +82-32-423-3384, E-mail: oselite@naver.com
Received March 10, 2023; Revised March 17, 2023; Accepted March 22, 2023.
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Most first-time patellar dislocation patients can be managed conservatively. Surgical treatment is suggested primarily in cases of relevant concomitant injuries, like osteochondral fractures, and predisposing factors for recurrence. Simple radiographs and CT are crucial to diagnosing bony risk factors for patellar dislocation, such as trochlear dysplasia, enhanced tibial tubercle-trochlear groove (TT-TG) distance, and patellar alta. MRI offers information on cartilage status and the medial patellofemoral ligament (MPFL) injury type for treatment planning. MPFL reconstruction can be an effective treatment option for patients with a specific situation (ex. osteochondral fracture, anatomical predisposing factors).
Keywords : Knee; Patella; Dislocation; Medial patellofemoral ligament
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