Clinical orthopaedics and related research
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The femoral neck fracture remains one of the unsolved fractures. It is a fracture with a high incidence of nonunion and avascular necrosis. One hundred twenty-one mostly young adult patients with femoral neck fractures were treated by Knowles pins internal fixation. ⋯ There was no significant difference in avascular necrosis rates among age groups. Nonunion and avascular necrosis occurred mainly in displaced fractures. Knowles pinning offers the advantages of few technical failures, early weight bearing, high union rate, and low complication rate.