Abstract
We performed arthroscopic surgery and examined the clinical results one year after the procedure in 32 patients (32 knees) older than 40 years of age in whom meniscus tear had been doubtful at the time of preoperative diagnosis, and for which conservative therapy had not been successful. The cases that preoperative extension restrictions remained after surgery was significantly low of postoperative JOA score, because it was considered that an element of the OA was strong. In contrast, the proportion of patients who underwent partial meniscectomy for lateral meniscus tear and discoid meniscus tended to be high, possibly due to removal of mechanical stress. If partial meniscectomy were possible for ICRS grade 4 in which the cartilage damage was considerable, a significant improvement from the preoperative situation was suggested after one postoperative year.
