Davidson Darin, Letts Merv, Glasgow Rob
Division of Orthopaedics, Children's Hospital of Eastern Ontario, University of Ottawa, Ottawa, Ont.
Can J Surg. 2003 Oct;46(5):350-8.
Discoid meniscus is an atavistic anomaly in which the meniscus of the knee, predominantly the lateral meniscus, is discoid rather than semilunar in shape. The abnormality is diagnosed relatively infrequently and may even go unrecognized or be untreated. Treatment has consisted of either partial or complete meniscectomy performed either arthroscopically or by open arthrotomy. Our purpose was to examine the outcome of treatment for discoid meniscus in children.
Since 1974, 34 children, including 2 with bilateral involvement, have been treated for discoid meniscus at the Children's Hospital of Eastern Ontario, a major pediatric referral centre. The average age of the children at the time of surgery was 11 years 4 months (range from 6 yr 2 mo-18 yr 6 mo). The average follow-up was 3 years (range from 1 mo-22 yr). The lateral meniscus was affected in 35 of the 36 knees. Treatment consisted of partial resection in 19 cases, complete resection in 13; 4 did not undergo resection.
There were 16 excellent, 10 good, 6 fair and 4 poor results at the time of most recent follow-up. In 2 cases degenerative changes were evident radiologically.
Partial resection of discoid menisci is preferable in children, but in complete dislocation of the entire menisci, total removal is necessary.
盘状半月板是一种返祖异常，其中膝关节半月板，主要是外侧半月板，呈盘状而非半月形。这种异常相对较少被诊断出来，甚至可能未被识别或未得到治疗。治疗方法包括通过关节镜或开放关节切开术进行部分或完全半月板切除术。我们的目的是研究儿童盘状半月板的治疗结果。
自1974年以来，安大略东部儿童医院（一家主要的儿科转诊中心）对34名儿童（包括2名双侧受累儿童）进行了盘状半月板治疗。手术时儿童的平均年龄为11岁4个月（范围为6岁2个月至18岁6个月）。平均随访时间为3年（范围为1个月至22年）。36个膝关节中的35个外侧半月板受到影响。治疗包括19例部分切除术、13例完全切除术；4例未进行切除术。
在最近一次随访时，结果为优的有16例，良的有10例，可的有6例，差的有4例。2例在放射学上有明显的退变改变。
儿童盘状半月板部分切除术较为可取，但在整个半月板完全脱位时，必须进行全部切除。
