[Primary valgisation osteotomy in femoral neck fractures].

Technique and results after primary valgisation osteotomy in 41 patients with femoral neck fractures are described. 2 non unions and 9 avascular femoral head necroses were observed. The primary valgisation most probably does not influence the rate of necrosis. When performed by accurate technique it lowers the incidence of non union of the femoral neck. Postoperative leg lengthening is always evident. The most current avoidable mistake is an external rotational deformity. The procedure requires proper preoperative planning.