Treatment of discoid lateral meniscal tear by arthroscopic surgery: a report of 77 cases / 中国矫形外科杂志

ABSTRACT

[Objective]To report the treatment and outcome of treatment of discoid lateral meniscal tear by arthroscopic surgery.[Method]During the period between Jan.1999 and Jun.2005,77 patients suffered from discoid lateral meniscal tear have been treated by arthroscopic surgery in Xijing Hospital. The standard arthroscopic portals (anteromedial and anterolateral)were used.Lateral menisci were totally removed in the 21 patients (29.2%) of total 77 cases,whereas lateral menisci of 13 patients (18.1%) were removed partially and meniscus-plasty was applied in 38 patients (52.8%).Thirty-nine (54.2%) of 77 patients were males,and 33 (45.8%) females.Their average age was 29.4?10.9 years (range 8~51 year).Five patients were lost in follow-up.The mean follow-up period of the rest 72 patients was 26.2 ?9.3 months (range 12~44 months).The patients were assessed pre-operationally and post-operationally by the Lysholm score.Moreover,the results of Lysholm score were analyzed by student-t test.[Result]All patients had progress in pain,swelling,range of motion and knee function. No complication,which included intraarticular infection,iatrogenic injury,fibroarthritis or loss of range of motion,was found.Lysholm score was 66.8?5.2 in average (range from 50 to 78) before operation,whereas it improved to 96.4?3.6 in average (range from 85 to 100) after operation.According to student-t analysis,very significant statistical difference was found between the pre-operative and post-operative results (t=34.7,P