Mechanism of injury in lateral condylar fracture of proximal tibia is ?: (A) Strain of valgus knee, (B) Strain of varus knee, (C) Strain of valgus knee with axial loading, (D) Rotational injury
Answer is C. A valgus force loads the lateral tibial plateau to failure from direct impact with the lateral femoral condyle. A combination of valgus and axial compression produces lateral side depression,split depression or less commonly lateral split or total lateral condyle fractures. ref : maheswari 9th ed