A Failure Case of Double Button Plate Fixation for Treatment of Nonunion of Patella Fracture

Abstract

The rate of nonunion of patella fracture was 2.4%-4.8% [1]. For the patella nonunion with no symptom or slight symptom, because the knee joint function is acceptable, non-surgical treatment is often used clinically. However, in some patients with nonunion, there are steps on the articular surface of patella, often have obvious symptoms such as knee joint pain, limited flexion and extension activities, etc., which can often cause serious complications such as traumatic patellofemoral arthritis, joint degeneration, joint stiffness, etc [2,3].