CAJ | 학술논문

目的研究发育性髋关节脱位患儿手术前后股骨骨密度的变化,讨论术后患儿发生骨折的可能性及如何减少骨折的发生.方法采用美国Norland XR46骨密度扫描仪,以双能X线吸收法测定92例发育性髋关节脱位患儿在手术前及术后2、4、6个月的双侧股骨骨密度.同时测定15名健康儿童骨密度值,作为对照.结果术前手术组与对照组的股骨骨密度无明显差异,手术组患儿双侧股骨骨密度无明显差异.92例患儿术后2个月手术侧股骨骨密度均明显下降(平均值自0.5178±0.0829降至0.2878±0.0674),至术后6个月出现不同程度的恢复(平均值恢复至0.4927±0.1073).结论接受髋关节切开复位手术患儿,术侧股骨骨密度在术后2个月内出现明显降低,拆除石膏后逐渐恢复,术后6个月股骨骨密度仍明显低于正常,此期间为功能锻炼期,易发骨折.
목적 연구발육성관관절탈위환인수술전후고골골밀도적변화,토론술후환인발생골절적가능성급여하감소골절적발생.방법 채용미국Norland XR46골밀도소묘의,이쌍능X선흡수법측정92례발육성관관절탈위환인재수술전급술후2、4、6개월적쌍측고골골밀도.동시측정15명건강인동골밀도치,작위대조.결과 술전수술조여대조조적고골골밀도무명현차이,수술조환인쌍측고골골밀도무명현차이.92례환인술후2개월수술측고골골밀도균명현하강(평균치자0.5178±0.0829강지0.2878±0.0674),지술후6개월출현불동정도적회복(평균치회복지0.4927±0.1073).결론 접수관관절절개복위수술환인,술측고골골밀도재술후2개월내출현명현강저,탁제석고후축점회복,술후6개월고골골밀도잉명현저우정상,차기간위공능단련기,역발골절.
Objective To analyze the risks and treatments of post-operative fracture by assessing the femoral bone mineral density in the children with developmental dislocation of hip. Methods The Norland XR46 bone densitomer system (USA) was employed and dual X-ray absorptiometry was employed to measure the bilateral femoral density of 92 children with developmental dislocation of hip pre-operatively and,2,4 and 6 months post-operatively. Results All 92 children demonstrated significant femoral bone mineral density reduction on the operated side 2 months posts-operatively (from 0. 5178 ± 0. 0829 to 0. 2878 ± 0. 0674). They recovered to different degree after 4 months after removing plaster and internal fixation plate (the average recoved to 0. 4927 ± 0. 1073). Conclusions The mineral density of the femur in children who underwent operative reduction for developmental dislocation of the hip joint decreased significantly 2 months post-operatively. It recoverd after the removal of the plaster. The femoral bone density during this period was lower than normal and it is susceptible to fracture.