1993 Volume 42 Issue 2 Pages 650-652
Between 1989 and 1991, we performed arthroscopic debridement for 10 patients (12 joints) with lateral type gonarthrosis. Fibrillation of chondral-bone was seen in 7 joints, erosion in 3 joints and large chondral-bone loss in 2 joints. Six of the 12 joints had a degenerative tear of the lateral discoid and the rest had severe degenerative tears of the lateral meniscus. All joints had a partial menisectomy with 2 joints additionally requiring drilling for chondral bone ulceration. Clinical evaluation was made using the Japanese Orthopaedic Assosiation (JOA score) criteria, with good results obtained. (Average score improved from 86.7±5.1 to 97.9±6.9, and the mean follow-up period was 30.0 months)
