Trans-medial gastrocnemius approach (Badet approach) for displaced posterior cruciate ligament tibial avulsion

Avulsions of the retrospinal surface are rare injuries resulting from high-energy trauma. Displacement of this fracture frequently indicates a surgical treatment to restore posterior cruciate ligament function. Several approaches have been proposed in the literature, either open or arthroscopic, which can be tricky due to the fracture's proximity to the popliteal vascular-nervous elements. Badet's open approach is a medial trans-gastrocnemius approach, providing a direct access to the retro-spinal surface for osteosynthesis. In this technique, an L-shaped incision is made along precise skin lines, followed by discision of the muscle fibers. The capsule is then approached, allowing a view of the retro-spinal surface protected from the popliteal vasculo-nervous elements by the muscular lateral lip of the gastrocnemius. A reduction followed by screw osteosynthesis is usually performed, allowing early mobilization of the patient. In this technical note, we describe the Badet approach supporting by video and case series. LEVEL OF EVIDENCE: IV.