ABSTRACT
Objective To compare the clinical effect of dynamic compression plate (DCP) and limited contact dynamic compression plate (LC-DCP) fixation in the treatment of limbs long bone fracture,provide certain basis for the choice of clinical internal fixation.Methods The clinical data of 172 patients with limbs long bone fracture treated with DCP and LC-DCP fixation were retrospectively analyzed.One hundred and one cases in LC-DCP group,and 71 cases in DCP group,the operation time,intraoperative blood loss,hospitalization time,fracture healing time,incidence of nonunion,daily activity ability and joint function score and clinical curative effect in two groups were compared.Results The operation time,fracture healing time,incidence of nonunion in LC-DCP group were better than those in DCP group[(62 ± 13) min vs.(88 ±20) min,(60.0 ± 20.5) d vs.(85.0 ± 25.5) d,1.0％ (1/101) vs.7.0％ (5/71)],there were significant differences (P ＜ 0.05),but the intraoperative blood loss and hospitalization time between two groups had no significant difference (P ＞ 0.05).Barthel and Harris score in LC-DCP group were better than those in DCP group [(72.61 ± 8.63) scores vs.(52.58 ± 5.53) scores,(69.28 ± 7.63) scores vs.(55.07 ± 6.26) scores],there were significant differences (P ＜ 0.05).The excellent rate in LC-DCP group was better than that in DCP group [99.0％ (100/101) vs.90.1％ (64/71)],there was significant difference (x2 =15.71,P ＜ 0.01).Conclusion Limbs long bone fracture treat with LC-DCP,can improve clinical curative effect and reduce complications,improve the daily ability of joint function in patients and is worth using in clinic.
ABSTRACT
[Objective]A new limited contact femoral supracondylar interlocking intramedullary nail(LCFSIIN) was made,which was part of a new custom-made hemi-knee joint,to improve the results of childrens' limb salvage.[Method]A new LCFSIIN was performed and the stress of bolts,intramedullary nails and bone were analyzed by finite dement analysis(FEA) while the bolts were implanted in different angulafions-0?,15?,30?,45?and 60?.[Result]The results of FEA show that the stress of bolts,bone and nails with 15? insertion angles of bolt was the tiniest and well distributed.Stress of bone with 0? insertion angles was more obvious than that with 15?,30?and 45?.The more the angles,the stress of proximal bolt became more obvious and the stress of distal bolt decreasing.[Conclusion]This new LCFSIIN can reduce destruction of biological environment of bone and is easy in use in limb salvage surgery of allograft.