[Osteosynthesis of extra-articular proximal tibial fractures].

The treatment of extra-articular proximal tibial fractures is a therapeutic challenge due to the frequently significant soft tissue injury, the effect of the deforming forces and the need for an exact restoration of the bony alignment. Various methods of osteosynthesis are available for surgical stabilization. The locking plate osteosynthesis is the most frequently used procedure because of its good biomechanical stability, especially in osteoporotic bones, and the protection of the periosteal blood flow. Depending on the extent and stability of the defect zone, especially in the case of a medial comminuted zone and the bone quality, bilateral plate osteosynthesis can be necessary. If the proximal fragment is big enough, closed reduction and intramedullary nailing are possible. In the case of severely compromised soft tissue or very short epiphyseal fragments, the construction of an external fixator, e.g. hybrid external fixator, is recommended, which also allows definitive treatment under early full weight bearing. The most important complications are axial and torsional malalignments.