四川医学2017，Vol.38Issue(6)：605-609,5.DOI:10.16252/j.cnki.issn1004-0501-2017.06.001
矢状位假体位置对PS型全膝关节置换术术后关节活动度的影响
The Effect of Sagittal Prosthesis Position on Joint Mobility after Surgery of PS-type TKA
摘要
Abstract
Objective To evaluate the effect of femoral prosthesis flexion angle and tibial plateau posterior inclination on the postoperative joint mobility in patients with bilateral total knee arthroplasty.Their own left and right limbs were compared.Methods The patients who had bilateral total knee arthroplasty first time and significant difference in flexion and extension function were divided into two groups:relatively good function and relatively poor.The t-test was used to analyze the difference of femoral prosthesis flexion angle(γ)and tibial plateau posterior inclination(δ)between the two groups.The Pearson test was used to analyze whetherthere is correlation between knee range of motion and γandδ.Results 31 cases of 62 knees were included in the study.The groupwith a relatively better postoperative extension function had an average extension angle of(-0.3 ± 0.9)°,γ angle(2.8 ± 2.2)°.The other grouphad an average extension angle of(-4.0 ± 2.3)°,γ angle(6.1± 3.4)°.The groupwith a relatively better postoperative flexion function had an average flexion angle of(106.5±9.3)°,δangle(5.2±2)°.The other grouphad an average flexion angle of(99.4±8.2)°,δangle(4.2±2)°The difference was statistically significant(P<0.001).The Pearson test showed correlation between the ROM range of the knee and theδangle(P<0.001).The larger theδangle,the greater the ROM,but there was no correlation with theγangle(P=0.400).Conclusion Ensuring propertibial plateau posterior inclination(δ)and avoiding femoral prosthesis flexion can help to obtain satisfactory postoperative activity.The greater the rearward posterior,the better the degree of joint mobility in a 2°-9° backward range.5° rear angle is recommended.关键词
全膝关节置换/活动度/功能/假体位置/矢状位Key words
total knee arthroplasty/activity/function/prosthetic position/sagittal分类
医药卫生引用本文复制引用
马俊,黄泽宇,沈彬,黄强,石小军,胡钦胜,裴福兴..矢状位假体位置对PS型全膝关节置换术术后关节活动度的影响[J].四川医学,2017,38(6):605-609,5.基金项目
国家卫生公益性行业科研专项基金(编号:201302007) （编号:201302007）
