Søreide O, Mølster A, Raugstad T S
Acta Orthop Scand. 1977;48(6):659-64. doi: 10.3109/17453677708994814.
Osteosynthesis of displaced femoral neck fractures using von Bahr screws was performed in 50 patients. Immediate postoperative weight-bearing was allowed. After a follow-up period of 1 year a high incidence (20 per cent) of early failure (dislocation of the fractures with or withour screw movement) was found. Analysis of the material showed that the failure rate was influenced by the peroperative reposition of the fracture, especially the valgus/varus position of the caput fragment, and the position of the screws.
50例患者采用冯·巴尔螺钉对移位的股骨颈骨折进行了骨固定术。术后允许立即负重。经过1年的随访，发现早期失败（骨折脱位伴或不伴螺钉移位）的发生率很高（20%）。对资料的分析表明，失败率受骨折术中复位情况的影响，特别是股骨头碎片的外翻/内翻位置以及螺钉的位置。
