• The Knee · Jan 2014

    Case Reports

    Lateral patellar retinaculum reconstruction for medial patellar instability following lateral retinacular release: a case report.

    • Kazuhiko Udagawa, Yasuo Niki, Hiroaki Matsumoto, Hideo Matsumoto, Hiroyuki Enomoto, Yoshiaki Toyama, and Yasunori Suda.
    • Department of Orthopaedic Surgery, Keio University, School of Medicine, Japan.
    • Knee. 2014 Jan 1;21(1):336-9.

    AbstractLateral retinacular release is still being performed in patients with recurrent patellar dislocation as an additional procedure with distal realignment or medial patellofemoral ligament (MPFL) reconstruction. However, consensus remains lacking regarding suitable indications for lateral retinacular release. A 20-year-old woman presented with patellar instability in both medial and lateral directions after undergoing lateral retinacular release with MPFL reconstruction. She displayed inherent systemic joint laxity meeting all seven Carter-Wilkinson criteria. Simultaneous MPFL revision and lateral retinaculum reconstruction successfully improved patellar instability in both directions. This case provides an example of iatrogenic medial patellar instability after failed lateral retinacular release.Copyright © 2013 Elsevier B.V. All rights reserved.

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