title: Pure Varus Injury to the Knee Joint.
abstract: A 30-year-old male was involved in a car accident. Radiographs revealed a depressed marginal fracture of the medial tibial plateau and an avulsion fracture of the fibular head. Magnetic resonance imaging showed avulsion fracture of Gerdy's tubercle, injury to the posterior cruciate ligament (PCL), posterior horn of the medial meniscus, and the attachments of the lateral collateral ligament and the biceps femoris tendon. The depressed fracture of the medial tibial plateau was elevated and stabilized using a cannulated screw and washer. The injured lateral and posterolateral corner (PLC) structures were repaired and augmented by PLC reconstruction. However, the avulsion fracture of Gerdy's tubercle was not fixed because it was minimally displaced and the torn PCL was also not repaired or reconstructed. We present a unique case of pure varus injury to the knee joint. This case contributes to our understanding of the mechanism of knee injury and provides insight regarding appropriate treatment plans for this type of injury.
authors.affiliation: Department of Orthopaedic Surgery, Seoul Sky Hospital, Seoul, Korea.
authors.forename: Jae Ho
authors.initials: JH
authors.lastname: Yoo
authors.affiliation: Department of Orthopaedic Surgery, National Police Hospital, Seoul, Korea.
authors.forename: Jung Ha
authors.initials: JH
authors.lastname: Lee
authors.affiliation: Reconstruction Center, Seoul National University Bundang Hospital, Seongnam, Korea.
authors.forename: Chong Bum
authors.initials: CB
authors.lastname: Chang
mesh_terms: D000328:Adult; D005360:Fibula / Q000293:injuries* / Q000601:surgery; D006801:Humans; D007718:Knee Injuries / Q000150:complications / Q000601:surgery; D008297:Male; D009104:Multiple Trauma / Q000150:complications / Q000601:surgery; D013978:Tibial Fractures / Q000150:complications / Q000601:surgery
keywords: Knee injury; Medial plateau fracture; Posterior cruciate ligament; Posterolateral complex; Varus