【摘要】 目的研究股骨头缺血性坏死(AVN)股骨近端的形态,为选择、设计假体提供解剖学依据。方法收集2004年1月至2008年8月因股骨头缺血性坏死行人工全髋关节置换术的病例186例(281髋),拍摄股骨近端标准X线正侧位片,测量各节段数据,拟合内外前后4条曲线来描述髓腔形态,并依据年龄和性别分组分析各节段数据的差别。结果排除由于皮质不清晰和塌陷严重的原因无法获得的完整资料病例59例外,共获得127例AVN患者的股骨近端数据,拟合了内外前后4条曲线,依据年龄分组在股骨内侧曲线远端上存在统计学差异(P<0.05),依性别分组髓腔各曲线均无统计学差异,平均数据与以往国人正常人数据比较,在小转子及其以上节段存在较大差异。结论获得了AVN股骨近端在标准X线正侧位片上的大宗数据,拟合了描述髓腔形态的内外前后4条曲线,推断AVN可能是影响股骨近端髓腔形态的独立因素。更多还原

【Abstract】 Objective To study the geometric features of proximal femur for the Chinese AVN population so as to provide anatomical references for hip prosthesis selection and design. Method From January 2004 to August 2008,186 patients with 281 hips undertaken total hip arthroplasty because of AVN were collected.All the standard anteroposterior(AP) and mediolateral(ML)X-ray films were obtained and measured to observe the proximal canal geometry by curve fitting technique.All cases with completed data were analyzed respectively according to gender and age. Result Among them 59 cases couldn’t obtain completed data and were excluded because of their unclear cortical margin and severe collapsed femoral head. The completed data from the other 127 cases were studied and successfully established medial,lateral,anterior and posterior curves to observe the proximal canal geometry.According to age,the statistical difference was found in medial part of the distal femur,while according to gender,there was no statistical difference.However,compared with data of normal Chinese population,there was difference at the proximal part of lesser trochanter. Conclusions We gained a large series data of AVN proximal femur and 4 fitted curves for describing the canal of AVN population.The results not only provide useful information of AVN,but also indicate that AVN,as a kind of disease,has the potential of an independent factor affecting the geometric features of proximal femur.更多还原