The treatment of undisplaced femoral neck fractures, having been disputed for the past 50 years, is analysed on the basis of 111 observations during the period of 1981 to 1983. Osteosynthesis proved to be advantageous. Fixation with a three-flanged nail did not increase mortality rate, had no negative effect on late complications, while it could prevent dislocation and permitted full loading at an early stage.
A case of a femoral head necrosis, with collapsed joint surface after fracture of the femoral neck will be presented. Following varisation osteotomy, the necrotic parts of the bone was removed and filled with cancellous bone. A standardized bone block of the iliac crest was implanted into the hole. After the operation the patient was painfree. The X-rays showed the improvement of the bony structure and later a spherical remodeling of the femoral head. This result is in opposition with the earlier opinion of the disability of femoral head remodeling in adults. It is technically very important to pack tight the hole in the femoral head with cancellous bone chips after necrectomy, and to ensure the revascularisation with vascularised bone block.
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