Abstract
Introduction
Menisci performs multiple functions in the knee.'These depend largely on the structural integrity of the meniscus. Arthroscopic partial menisectomy is the treatment of choice for meniscal tears in adults. There is conflicting evidence about the progression of degenerative changes in the medial or lateral compartment of the knee following menisectomy.
Aim
The aim of our study was to demonstrate the subjective, objective and radiographic outcome of arthroscopic partial lateral menisectomy in the intermediate term and to identify any association between age, sex, activity level, the type of meniscal tear, pre operative articular surface damage and the amount of meniscus resected on the outcome.
Materials and Methods
Between 1999 and 2003,152 patients in the18 to 40 year age group underwent arthroscopic partial lateral menisectomy. A senior consultant orthopaedic surgeon performed all procedures. 72 patients were available for final clinical and radiological review. Patient's subjective & objective assessments were undertaken using validated scoring systems. Musculoskeletal physiotherapist & radiologists performed clinical & radiological assessments independently. Progression of degenerative changes was recorded.
Results
All patients demonstrated initial improvement of symptoms lasting upto 2 ½ years followed by gradual deterioration of subjective symptoms. There was statistically significant deterioration in the IKDC & Lysolm scores. Radiological changes developed or progressed in 36.6% of the patients (P value < 0.005). These changes were most marked in the 35 to 40 year age group. There was no statistical correlation between clinical symptoms and radiological changes. No other statistically significant associations were demonstrated
Conclusions
Arthroscopic partial lateral menisectomy leads to progressive deterioration in clinical and radiological outcome in the Intermediate term. However there is no correlation between clinical & radiological outcomes.
