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Factors affecting long-term results after arthroscopic partial meniscectomy
H Higuchi1, M Kimura, K Shirakura
1Department of Orthopaedic Surgery, Gunma University School of Medicine, Japan.
Clinical Orthopaedics and Related Research
|August 16, 2000
Summary
Long-term follow-up of arthroscopic partial meniscectomy for isolated meniscal tears shows good functional outcomes. However, it significantly increases the risk of osteoarthritis development over time.
Area of Science:
- Orthopedic Surgery
- Sports Medicine
- Knee Joint Research
Background:
- Isolated meniscal tears are common knee injuries.
- Arthroscopic partial meniscectomy is a frequent surgical intervention.
- Long-term outcomes regarding function and joint health require further investigation.
Purpose of the Study:
- To evaluate long-term functional and radiographic changes after arthroscopic partial meniscectomy for isolated meniscal tears.
- To identify factors influencing these long-term outcomes.
Main Methods:
- Retrospective evaluation of 67 patients with an average 12.2-year follow-up.
- Assessment using the Tapper and Hoover scale for function.
- Radiographic evaluation based on Fairbank's changes, comparing pre- and post-operative states with the contralateral knee.
Main Results:
- 79% of patients reported satisfactory functional outcomes.
- Factors influencing long-term function included the amount of meniscus removed and initial cartilage degeneration (Outerbridge classification).
- 48% of patients showed osteoarthritic changes post-surgery; medial meniscectomy and extent of resection were risk factors for radiographic changes.
Conclusions:
- Arthroscopic partial meniscectomy for isolated meniscal injuries provides favorable short-to-medium term functional results.
- Despite mild radiographic deterioration, there is a significant long-term increase in osteoarthritis development.
- Medial meniscectomy and larger resection volumes are associated with greater post-operative radiographic changes.