摘要
目的设计和应用新型分叉式动力型交锁髓内钉(forkintralockingintramedullarynail,FLN)。方法将分叉钉(FLN)与GK钉(Grosse-Kempf,GK)、矩形钉(rectanglenail,RN)、8孔钢板(8-plante,8PT)、梅花钉(plumblossomnail,PBN)和Ender钉(Endersnail,En)在抗轴向压缩、抗弯曲、抗扭转的强度上进行比较,并自1998年9月～2001年5月使用FLN治疗胫腓骨骨折患者169例(179侧)。结果在抗轴向压缩、抗弯曲、抗扭转的强度上,FLN与GK钉相似,明显强于矩形钉(RN)、8孔钢板(8PT)、梅花钉(PBN)和Ender钉(En);FLN的应力遮挡率明显优于GK钉。随访3个月以上者147例,已拔钉97例,骨折愈合时间为11～31周,平均19.6周,并发症包括外旋畸形5例(为10°～15°),外翻畸形4例,内翻畸形2例,均小于10°,短缩移位6例,膝关节进钉点局部疼痛16例,腓总神经损伤1例(3个月后恢复),术后发生迟发感染3例(术后1个月1例,5个月后感染2例),感染率为1.6%,延迟愈合2例(1.4%)。按JohnerandWruhs疗效标准,总优良率为96.5%,一般为1.3%、差为2.2%。结论新型分叉式交锁髓内钉固定是一种方便有效的方法,对于严重胫骨粉碎性骨折和下段骨折者远端改以两枚横形锁钉,与GK钉相同,具有一钉两用,手术适应证广等特点。
Objective To describe the design and application of a new fork interlocking in-tramedullary nail(FLN).Methods The anti-compression,anti-bendin g,anti-torsion and rigidity of the FLN were compared with those of recta ngle nail(RN),plum blossom nail(PBN),Ender nail(EN),GK nail(GK)and 8-hole plate biomechanically an d 169case of tibial fractures treate d with the FLN from September1998to May 2001were reviewed.Results The anti-compression,anti-bendin g,anti-torsion and rigidity of the FLN were similar to those of GK and significantly stronger than those o f RN,PBN,EN and 8-hole plate.Of 169cases,147were followed up for more than 3months.Among them,97nails have been removed.The average healing period was 19.6week s(11-31weeks)and the complications include 5exte rnal rotation deformities(from 10°to 15°),4valgus deformities,2varus deform ities,6shortening-displacements,16pain at the nail-entry points,1common peroneal nerve injury(healed 3months later)and 3delayed postoperative infection(1case one month later,2cases five mo nths later).The infection rate was 1.6%.Based o n Johner and Wruhs standard,the excellent ra te was 96.5%,fair 1.3%and failure 2.2%respectively.Conclusion1)FLN is an effective and convenient im plant to treat tibial fracture.2)In severely comminuted fractures an d distal shaft fractures,the distal h ole could be inserted with two transv erse screws similar to GK,which can widen its indication.[
出处
《中华骨科杂志》
CAS
CSCD
北大核心
2002年第6期362-366,共5页
Chinese Journal of Orthopaedics
