加压螺丝钉治疗肱骨外科颈骨折的力学分析与临床应用

Biomechanics Analysis and Clinical Application of Compressed Screw to Treat Fracture ofSurgical Neck of Humerus

本文报道了周加压螺丝钉治疗肱骨外科颈骨折４１例，男３０例，女１１例，年龄６岁～８０岁．用１～２枚加压螺丝钉作内固定治疗，随访３２例，平均随访３．５个月．用Ｎｅｅｒ记分法评定结果，优良率达８４．３７％．临床应用证实加压螺丝钉具有良好的生物力学效应，其加压作用有利于促进骨折愈合，呈轴向加压，无应力遮挡，允许早期功能锻炼，可获得充分的功能恢复．作者认为加压螺钉治疗肱骨外科颈骨折是一种较理想的内固定方法．

Forty-one cases with the fracture of surgical neck of humerus using compressed screwwere reported. In 41 cases, aged range from 6 to 80 years, we have used 1 or 2 compressed screws to fixthe fractures of surgical neck of humerlis. 32 cases had been follow-up with an averane period of 3. 5months aller internal fixation. According to the scoring system of Neer, 84.37% of patients weresatisfactory by the biomechanical test and clinic the results demonstrated that the compressed screws haveexcellent effects of biomechanics. The axial compressive effects of the compressed screws could promotethe fracture heal and allow early functional exercises and achieve full functional recovery. The authorsbelieve that compressed screw have effect to fix fracture of surgical neck, of the humerus.