John Rakesh, Chouhan Devendra K, Dhillon Mandeep Singh
Department of Orthopaedics, Indraprastha Apollo Hospital, New Delhi, India.
Department of Orthopaedics, PGIMER, Chandigarh, India.
Trauma Case Rep. 2018 Apr 26;15:16-22. doi: 10.1016/j.tcr.2018.04.004. eCollection 2018 Jun.
Semimembranosus avulsion fracture is infrequently reported and is easy to miss on plain radiographs; the mechanism of injury is highly controversial. Initial reports linked it to anterior cruciate ligament and medial meniscal tears. We report an osteochondral semimembranosus avulsion fracture of the posteromedial tibial plateau with associated posterior cruciate ligament rupture. Also described is a novel surgical fixation technique for such osteochondral fractures where the surgical exposure is limited due to the obliquity of the fracture line resulting in a greater involvement of the articular cartilage than the small bony component. The fixation technique described may be used for osteochondral fractures where the application of a conventional compression screw may not be feasible.
半膜肌撕脱骨折鲜有报道，在X线平片上容易漏诊；其损伤机制极具争议性。最初的报道将其与前交叉韧带和内侧半月板撕裂联系起来。我们报告一例胫骨后内侧平台骨软骨性半膜肌撕脱骨折并伴有后交叉韧带断裂。还描述了一种针对此类骨软骨骨折的新型手术固定技术，由于骨折线倾斜，手术显露受限，导致关节软骨受累程度大于小的骨块部分。所描述的固定技术可用于传统加压螺钉无法应用的骨软骨骨折。
