Mitsuoka T, Shino K, Hamada M, Horibe S
Department of Orthopaedic Sports Medicine, Osaka Rosai Hospital, Japan.
Arthroscopy. 1999 Jan-Feb;15(1):20-6. doi: 10.1053/ar.1999.v15.015002.
Differences in the features of osteochondritis dissecans (OCD) affecting the lateral and medial femoral condyles were investigated in 13 patients (14 knees) treated from 1991 to 1994. OCD affected the lateral femoral condyle in 6 knees (lateral group) and the medial condyle in 8 knees (medial group). The lateral group was younger (mean age, 14 v. 20 years). The radiological stage (Brückl) of the lateral group was stage 2 in 3 knees and stage 3 in 3. The lateral menisci were all discoid and the condylar articular surface of the lesions was normal in two knees, softened in 3 and detached in 1. The medial group comprised 1 knee in stage 2, 1 in stage 3, 1 in stage 4, and 5 in stage 5. The OCD lesion showed softening in 2 knees and detachment in 6. Repetitive abnormal stress on weaker osteochondral structures in the growing period produced by a discoid meniscus during growth may cause OCD of the lateral femoral condyle.
对1991年至1994年期间接受治疗的13例患者（14个膝关节），研究了影响股骨外侧髁和内侧髁的剥脱性骨软骨炎（OCD）的特征差异。OCD累及6个膝关节的股骨外侧髁（外侧组）和8个膝关节的内侧髁（内侧组）。外侧组患者年龄较小（平均年龄，14岁对20岁）。外侧组的放射学分期（Brückl），3个膝关节为2期，3个为3期。外侧半月板均为盘状，2个膝关节病变的髁关节面正常，3个变软，1个分离。内侧组包括1个2期膝关节、1个3期、1个4期和5个5期膝关节。OCD病变在2个膝关节表现为软化，6个表现为分离。生长过程中盘状半月板在生长期对较弱的骨软骨结构产生的反复异常应力可能导致股骨外侧髁的OCD。
