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, Yasunori Suda

Research output: Contribution to journalArticle

14 Citations (Scopus)


Lateral 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.

Original languageEnglish
Pages (from-to)336-339
Number of pages4
Issue number1
Publication statusPublished - 2014 Jan 1



  • Lateral patellar retinaculum
  • Lateral retinacular release
  • Medial patellofemoral ligament
  • Reconstruction
  • Recurrent patellar dislocation

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine

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