生物骨科材料与临床研究2025，Vol.22Issue(2)：18-23,6.DOI:10.3969/j.issn.1672-5972.2025.02.004
两种对线方法在活动平台单髁置换术后的近期疗效对比
A retrospective comparison of mechanically vs kinematically aligned unicompartmental knee arthroplasties
摘要
Abstract
Objective To compare the clinical effects of mechanical alignment(MA)and kinematical alignment(KA)after unicompartmental knee arthroplasty(UKA).Methods A retrospective study at Henan Luoyang Orthopedic Hospital,from March 2020 to January 2022 identified 94 UKA patients(53 cases in MA group and 41 cases in KA group).In terms of clinical efficacy,incision length,operation time and intraoperative blood loss were recorded in the two groups.The knee range of motion(ROM),Forgotten Joint Score(FJS)and Oxford Knee Score(OKS)were recorded pre-operatively,3 months,6 months,1 year and 2 years post-operatively in both groups.Radiographs were taken to determine if the prosthesis was loose,dislocated,depressed,or if the seal was dislocated.Meanwhile,the medial proximal tibial angle(MPTA)and the lateral distal femoral angle(LDFA)were measured.The arithmetic hip-knee-ankle angle(HKA)and joint line obliquity(JLO)were calculated from the LDFA-MPTA and LDFA+MPTA results,respectively.Results At the last follow-up,the prosthesis survival rate was 100%in both groups.Compared with the MA group,the KA group had less intraoperative bleeding and shorter operation time,and the differences were statistically significant(P<0.05).ROM was significantly improved in both groups compared with preoperative values(P<0.05),but there was no significant difference between the two groups(P>0.05).There was no significant difference in FJS at any time after surgery.In terms of OKS,the KA group was better than the MA group at 6 months,1 year and the last follow-up except at 3 months post-operatively.There was no significant difference in MPTA between the two groups(P>0.05),but there was a significant difference in LDFA between the two groups(P<0.05).Conclusion For mobile platform UKA,both KA group and MA group can achieve good clinical effect in the early post-operative period.Compared with MA group,KA group has less intraoperative bleeding,shorter operative time and higher postoperative joint function score.关键词
膝关节单髁置换/运动对线/机械对线Key words
Unicompartmental knee arthroplasty/Mechanical alignment/Kinematical alignment分类
临床医学引用本文复制引用
刘明强,刘沛,申晟,李建垒,陈森..两种对线方法在活动平台单髁置换术后的近期疗效对比[J].生物骨科材料与临床研究,2025,22(2):18-23,6.基金项目
河南省中医药科学研究专项课题(2022ZY1130) （2022ZY1130）
河南省重大科技专项(221100310200) （221100310200）
