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Iatrogenic Medial Patellar Instability: An Avoidable Injury.

Vicente Sanchis-Alfonso1, Alan C Merchant2

  • 1Department of Orthopaedic Surgery, Hospital 9 de Octubre, Valencia, Spain.

Arthroscopy : the Journal of Arthroscopic & Related Surgery : Official Publication of the Arthroscopy Association of North America and the International Arthroscopy Association
|April 1, 2015
PubMed
Summary
This summary is machine-generated.

Iatrogenic medial patellar instability causes severe knee pain and disability after surgery. Avoiding lateral retinaculum over-release can prevent this condition.

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Area of Science:

  • Orthopedic Surgery
  • Sports Medicine
  • Knee Biomechanics

Background:

  • Iatrogenic medial patellar instability is a complication following patellar realignment surgery.
  • It leads to debilitating anterior knee pain, functional disability, and psychological distress.

Purpose of the Study:

  • To highlight the diagnostic criteria for iatrogenic medial patellar instability.
  • To emphasize preventative strategies for this condition.

Main Methods:

  • Diagnosis relies on clinical suspicion in patients with worsened pain post-surgery.
  • Physical examination and therapeutic tests like "reverse" McConnell taping are utilized.
  • Imaging techniques confirm the diagnosis.

Main Results:

  • The condition is iatrogenic, meaning it is caused by medical examination or treatment.
  • Over-release of the lateral retinaculum during surgery is identified as a primary cause.

Conclusions:

  • Iatrogenic medial patellar instability is a preventable complication.
  • Avoiding excessive lateral retinaculum release during patellar realignment surgery can eliminate this condition.