[The role of continuous extension in the appearance and prevention of joint stiffness].

Based upon a six years' experience the author uphold that continuos extension with an articular suprajacent point of fixation creates a static, reciprocal pressure between the articular surfaces and exposes to articular rigidity. Continuous extension with an articular subjacent point of fixation and gradual flexion of the knee is a preventive method of great clinical value, ensuring consolidation of the fracture focus within a short interval and maintenance of the articular function.