Abstract
Femoral neck fractures in healthy young adults caused by a relatively low-energy trauma are uncommon. The cases are presented of four cyclists, man of 37, 42 (N=2) and 43 years old, with a femoral neck fracture, in which so called clipless pedals played an important part. The shoes of the cyclist were fixed to the pedals, and the patients had been unable to remove their feet quickly when they fell. They were treated by osteosynthesis using screws, but one of them developed intra-articular infection which eventually necessitated implantation of a total hip prothesis. (A)