Neuschwander D C, Drez D, Finney T P
Louisiana State University, Lake Charles 70601.
J Bone Joint Surg Am. 1992 Sep;74(8):1186-90.
We reviewed the cases of 3468 patients who had had arthroscopy of the knee between January 1976 and December 1988. Twenty-six patients (0.8 per cent) had a partial or a complete discoid lateral meniscus, and seven (0.2 per cent) had the Wrisberg-variant-type lateral meniscus. Of the seven patients, six had operative stabilization of the meniscus and one had a partial lateral meniscectomy because of an irreparable complex tear. Subjective, objective, and radiographic evaluations were performed on the patients who had had stabilization of the meniscus. According to the scale of Tegner and Lysholm, the result was excellent in four patients, good in one, and fair in one. None of the six patients had a tear of the sutured meniscus after an average follow-up of thirty-two months (range, twenty-four to forty months). Two patients had progressive symptoms attributable to osteoarthrosis, but the changes in the articular cartilage had been present at the time of the index procedure. None of the seven Wrisberg-variant-type menisci demonstrated a true discoid shape of the meniscus. We therefore classified this lesion as a lateral meniscal variant with absence of the posterior coronary ligament.
我们回顾了1976年1月至1988年12月间接受膝关节镜检查的3468例患者的病例。26例患者（0.8%）存在部分或完全盘状外侧半月板，7例患者（0.2%）存在Wrisberg变异型外侧半月板。在这7例患者中，6例行半月板手术固定，1例因不可修复的复杂撕裂行部分外侧半月板切除术。对半月板已固定的患者进行了主观、客观和影像学评估。根据Tegner和Lysholm评分标准，4例患者结果为优，1例为良，1例为中。6例患者平均随访32个月（范围24至40个月）后，缝合的半月板均未出现撕裂。2例患者出现与骨关节炎相关的进行性症状，但在初次手术时关节软骨就已存在改变。7个Wrisberg变异型半月板均未呈现真正的盘状半月板形态。因此，我们将此病变归类为外侧半月板变异型伴后冠状韧带缺失。
