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Arthroscopic partial meniscectomy: 5-year follow-up
1Universitäts-Klinik für Unfallchirurgie, Innsbruck, Austria.
Abstract:
The purpose of this study was to determine the influence of preexisting chondromalacia at time of surgery on the results at a minimum of 5 years follow-up of arthroscopic partial meniscectomy. The patients were divided into two groups: group I (87 patients, average age 29.8 years) with no intraoperative findings of chondromalacia at the time of surgery, and group II (234 patients, average age 39.2 years) with chondromalacia at the time of surgery. The follow-up period was 70-86 months, with the criterion of a minimum of 5 years in each patient. Postoperative changes were evaluated according to Fairbank's classification and preoperative X-rays were compared to follow-up X-rays. For statistical analysis the Mann-Whitney test was used. In both groups arthroscopic partial lateral meniscectomy led to worse results in respect of the development of osteoarthritis. Following partial medial meniscectomy preexisting chondromalacia had a negative influence on the radiological outcome. An increase of osteoarthritis was also proven in our patient population which was statistically significantly related to age and female sex (P = 0.002).
Insights
Preexisting chondromalacia negatively impacts outcomes after arthroscopic partial meniscectomy, particularly for medial procedures. This condition, along with age and female sex, increases osteoarthritis development over time.
Area of Science:
- Orthopedic Surgery
- Sports Medicine
- Radiology
Background:
- Arthroscopic partial meniscectomy is a common procedure for meniscal tears.
- The long-term effects of preexisting chondromalacia on surgical outcomes are not fully understood.
Purpose of the Study:
- To evaluate the influence of preoperative chondromalacia on the 5-year postoperative results of arthroscopic partial meniscectomy.
- To assess the development of osteoarthritis following the procedure in relation to chondromalacia status.
Main Methods:
- Retrospective study comparing two groups: no chondromalacia vs. preexisting chondromalacia.
- Minimum 5-year follow-up with radiological assessment using Fairbank's classification.
- Statistical analysis using the Mann-Whitney test.
Main Results:
- Both groups showed increased osteoarthritis after arthroscopic partial lateral meniscectomy.
- Preexisting chondromalacia negatively affected radiological outcomes after partial medial meniscectomy.
- Osteoarthritis progression was significantly associated with patient age and female sex.
Conclusions:
- Preexisting chondromalacia is a risk factor for poorer radiological outcomes after arthroscopic partial meniscectomy, especially for medial tears.
- Age and female sex are significant predictors of osteoarthritis development post-meniscectomy.
- Further research into managing chondromalacia in conjunction with meniscectomy is warranted.