Bone fixation system with curved profile threads

摘要

A bone fastener (10) for use in orthopaedic surgery for fixing an implant (72) to bone has a threaded or unthreaded shaft (12) configured to engage bone and a head (14) having a thread (16) on an outer surface to engage the implant. The thread on the head of the fastener has a profile in cross section that includes peaks (28) with a curved shape.