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Locked Lateral Patellar Dislocation Reduced by Arthroscopic Procedure: A Case Report.

Shunya Otani1,2, Akira Tsujii3, Kazunori Shimomura4

  • 1Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Suita, JPN.

Cureus
|January 27, 2025
PubMed
Summary

This study presents a successful arthroscopic reduction and medial repair for a lateral locked patellar dislocation. The patient experienced no recurrence after a five-year follow-up, demonstrating a stable outcome.

Keywords:
arthroscopic reductionarthroscopic surgeryirreduciblelateral patellar dislocationlocked patellar dislocationmpfl

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Area of Science:

  • Orthopedic Surgery
  • Knee Arthroscopy
  • Patellofemoral Instability

Background:

  • Patellar dislocations often resolve with non-surgical methods.
  • Arthroscopic treatment for lateral locked patellar dislocation is rarely documented.
  • Limited long-term data exists for arthroscopic interventions in such cases.

Observation:

  • A 22-year-old male presented with a lateral locked patellar dislocation.
  • The condition necessitated surgical intervention due to persistent locking.
  • Previous treatments were insufficient for this specific type of dislocation.

Findings:

  • Arthroscopic reduction of the lateral locked patellar dislocation was performed.
  • Repair of the medial structures was conducted to enhance medial patellar stability.
  • The patient achieved successful patellar stabilization post-procedure.

Implications:

  • This case suggests arthroscopic reduction and medial repair is a viable long-term solution for lateral locked patellar dislocations.
  • The technique offers a minimally invasive approach with favorable outcomes.
  • Further research may explore this method for similar complex patellar instability cases.