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Miyakawa patellectomy.

C L Baker1, J C Hughston

  • 1Hughston Orthopaedic Clinic, Columbus, Georgia 31995.

The Journal of Bone and Joint Surgery. American Volume
|December 1, 1988
PubMed
Summary
This summary is machine-generated.

Miyakawa patellectomy effectively treats patellar issues by realigning the extensor mechanism. This surgical technique provides good to excellent long-term subjective and objective outcomes for patients with knee extensor mechanism malfunction.

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Area of Science:

  • Orthopedic surgery
  • Knee joint biomechanics
  • Patellofemoral joint disorders

Background:

  • Patellar malfunction, including osteoarthritis and chondromalacia, can significantly impair knee function.
  • Traditional treatments may not fully address extensor mechanism abnormalities.
  • Miyakawa patellectomy offers a reconstructive approach to extensor mechanism dysfunction.

Purpose of the Study:

  • To evaluate the long-term efficacy of Miyakawa patellectomy for knee extensor mechanism malfunction.
  • To assess both subjective and objective outcomes following this specific patellectomy technique.

Main Methods:

  • Seventeen patients (twenty knees) underwent Miyakawa patellectomy for patellar osteoarthritis or chondromalacia secondary to extensor mechanism issues.
  • The procedure involves realigning the extensor mechanism, filling the patellar void with a quadriceps tendon strip, and advancing vastus muscles.

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  • Exclusion criteria included prior patellar fracture.

    • Main Results:

    • Average follow-up was 13.8 years (range: 3.6–31.7 years).
    • Nineteen of twenty knees reported good or excellent subjective results.
    • Eighteen of twenty knees demonstrated good or excellent objective results.

    Conclusions:

    • Miyakawa patellectomy is a successful surgical option for correcting knee extensor mechanism malfunction.
    • The procedure yields high rates of satisfactory long-term subjective and objective outcomes.
    • No further surgery was required for extensor mechanism issues post-procedure.