自动开叉交锁加压髓内钉内固定的生物力学特性的研究  

THE BIOMECHANICAL PROPERTIES OF AUTO-BRANCHING INTERLOCKING COMPRESSION NAIL

作　　者：王明才[1] 王以进[2] 李永丰[2] 吴维才[1] 陈枫文[1] 贺茂林[1] 

机构地区：[1]湖北襄樊市中心医院骨科,441021 [2]上海大学生物力学研究所,201800

出　　处：《医用生物力学》2001年第4期252-256,共5页Journal of Medical Biomechanics

摘　　要：目的:比较股骨干不稳定骨折采用新型交锁加压髓内钉(NLN)和自动开叉交锁加压髓内钉(ALN)内固定的生物力学性能,为临床提供科学依据。方法:采用8具新鲜尸体股骨,以两种不同器械固定,并与常用梅花钉、GK钉进行对照比较,用实验应力分析方法分析它们在生物力学性能上的优劣。结果:自动开叉交锁加压髓内钉力学性能明显优于对照组(P<0.05)。结论:自动开叉交锁加压髓内钉内固定生物力学性能优越,应力遮挡小,明显优于其它髓内钉。Objective:The biomechanical properties of new type interlocking compression nail(NLN)and auto-branching in-terlocking compression nail(ALN)were compared to give us scientific evidences for clinical application.Methods:8pairs of fresh adult femora were used and fixed with these2instruments and plum-shaped intramedullary nail and C-K nail and biomechanical properties were compared.Results:The auto-branching interlocking compression nail is the best in the biomechanical properties compared with other devices(p<0.05).Conclusions:The Auto-branching Iterlocking compression Nail is better than other instruments because of better biomechanical properties and less no stress-shielding.It's a good device of the internal fixation of the unstable fracture of femoral shaft.

关 键 词：股骨干骨折 内固定 自动开叉交锁髓内钉 生物力学 

分 类 号：R683.42[医药卫生—骨科学] R318.08[医药卫生—外科学]