自锁髓内钉与交锁髓内钉应用的临床研究

Clinical Research of Autolocking Intramedullary Pin and Interlocking Intramedullary Pin in Clinical Application

目的:探讨自锁髓内钉与交锁髓内钉治疗符合髓内钉固定的长管状骨骨折的各自优缺点。方法:采用闭合复位或开放复位治疗包括股骨、胫骨、肱骨等长管状骨骨折共64例,对术后进针点疼痛、轻度成角(<5°)、轻度短缩(<1 cm)、骨折延迟愈合、骨折不愈合、锁钉或髓内钉断裂等进行对比观察。结果:这两组在术后进针点疼痛、轻度成角(<5°)、轻度短缩(<1cm)、骨折延迟愈合或不愈合、锁钉或髓内钉断裂等并发症方面比较,差异无统计学意义。结论:两种方法各有优势,自锁髓内钉属动力性固定,对骨折端有纵向加压作用,能促进骨折愈合,术中无需远端锁钉,可减少手术时间,降低手术感染风险,也更加微创。交锁髓内钉属静力性固定,固定确实、可靠,但应注意可能发生的骨折延迟愈合或不愈合,并及时处理。

Objective：To study the respective merit and demerit of autolocking intramedullary pin and interlocking intramedullary pin in the treatment of intramedullary nailing long bone fracture.Methods：Use closed reduction or open reduction treating thigh-bone,tibial,humerus and other cases of 64 patients.Observe the postoperative pain,mild angulation（5 °）,mild crispation（1 cm）,delay union,fracture nonunion,lockpin break and intramedullary pin break.Results：All these aspects have no significant statistically differences.Conclusion：Both methods have advantages.Autolocking intramedullary pin is fixed and has vertical compression effect and can promote the fracture healing with low operation time and infection risk.Interlocking intramedullary pin is static force and reliable,but should pay attention to delay union or disunion and handle in time.