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1Principles

Completed osteosynthesis

General consideration

As with any articular injury, anatomical restoration of the joint surface must be obtained. This is generally best done under direct vision, clamp application, provisional fixation and then lag screw fixation.

The surgeon must bear in mind that the strong axial loading forces, as well as varus/valgus stress in the knee joint can tend to displace fragments. With vertical fracture lines, in particular, screw fixation alone may not be sufficient, and a buttress plate should be added.