Comparison of the therapeutic effects of cannulate screw and locking compression pediatric hip plate on displaced femoral neck fractures in children

YANG Jing; LIU Min; HUANG Jianlin

doi:10.3969/j.issn.1002-7386.2018.08.013

Abstract：Objective Comparison of the therapeutic effects of cannulate screw and locking compression pediatric hip plate (LCP-PHP) on displaced femoral neck fractures in children.Methods Forty-six children patients with femoral neck fractures were randomly divided into two groups,the 23 patients in LCP group were treated by LCP-PHP,however,the other 23 patients in cannulate screw group were treated by cannulate screw internal fixation. The duration of surgery, intraoperative bleeding volume, diameter and size of surgical incision, frequency of epiphyseal injury and VAS score on 1d,3d after operation were observed and compared between two groups. Moreover the bone union time and the rehabilitation training time without weight-bearing after operation were also observed.In addition the therapeutic effects were evaluated by Ratliff hip joint function score,moreover,the Harris hip scores,the loss of collodiaphysial angle and incidence of postoperative complications were observed and compared between two groups.Results The duration of surgery,intraoperative bleeding volume,diameter and size of surgical incision and VAS scores on 1d after operation in cannulate screw group were superior to those in LCP group (P<0.05),however,there was no significant difference in the frequency of epiphyseal injury between two groups (P >0.05). The bone union time,the rehabilitation training time without weight-bearing after operation and the loss degree of collodiaphyseal angle in LCP group were significantly less than those in cannulate screw group,however, the Harris hip joint function scores in LCP group were significantly higher than those in cannulate screw group (P <0.05). In addition the excellent and good rate of Ratliff classification in hocannulate screw group was 73.91%,which was significantly lower than that (95.65%) in LCP group (P < 0. 05),However there was no significant difference in incidence rate of postoperative complications between two groups (P>0.05).Conclusion LCP-PHP internal fixation has more active effects on function recovery of displaced femoral neck fractures in children,but its surgical trauma is more serious than that by cannulate screw internal fixation,and both internal fixation methods have advantages and disadvantages,therefor,which should be selected according to clinical practical status.