Englund Martin, Guermazi Ali, Lohmander Stefan L
Musculoskeletal Sciences, Department of Orthopedics, Clinical Sciences Lund, Lund University Hospital, Klinikgatan 22, SE-221 85 Lund, Sweden.
Radiol Clin North Am. 2009 Jul;47(4):703-12. doi: 10.1016/j.rcl.2009.03.003.
The menisci play a critical protective role for the knee joint through shock absorption and load distribution. Asymptomatic meniscal tears are common and are frequent incidental findings on knee MR imaging of the middle-aged or older patient. A meniscal tear can lead to knee osteoarthritis (OA), but knee OA can also lead to a spontaneous meniscal tear through breakdown and weakening of meniscal structure. A degenerative meniscal lesion in the middle-aged or older patient could suggest early stage knee OA and should be treated accordingly. Surgical resection of nonobstructive degenerate lesions may only remove evidence of the disorder while the OA and associated symptoms proceeds.
半月板通过减震和负荷分配对膝关节起到关键的保护作用。无症状半月板撕裂很常见，在中年或老年患者的膝关节磁共振成像中经常是偶然发现。半月板撕裂可导致膝关节骨关节炎（OA），但膝关节OA也可通过半月板结构的破坏和弱化导致自发性半月板撕裂。中年或老年患者的退行性半月板病变可能提示早期膝关节OA，应相应进行治疗。对非阻塞性退变病变进行手术切除可能只会消除疾病的证据，而OA及相关症状仍会继续发展。
