%0 Journal Article
%T [Effect of three-dimensional printing guide plate on improving femoral rotational alignment and patellar tracking in total knee arthroplasty].
%A Sun M
%A Yang L
%A He R
%A Hao P
%A Sun J
%J Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
%V 34
%N 3
%D Mar 2020 15
%M 32174079
暂无%R 10.7507/1002-1892.201907045
%X <B>OBJECTIVE: </B>To investigate the effect of three-dimensional (3D) printing guide plate on improving femoral rotational alignment and patellar tracking in total knee arthroplasty (TKA).<BR><B>METHODS: </B>Between January 2018 and October 2018, 60 patients (60 knees) with advanced knee osteoarthritis who received TKA and met the selection criteria were selected as the study subjects. Patients were randomly divided into two groups according to the random number table method, with 30 patients in each group. The TKA was done with the help of 3D printing guide plate in the guide group and following traditional procedure in the control group. There was no significant difference in gender, age, disease duration, side, and preoperative hip-knee-ankle angle (HKA), posterior condylar angle (PCA), patella transverse axis-femoral transepicondylar axis angle (PFA), Hospital for Special Surgery (HSS) score, and American Knee Society (AKS) score ( P>0.05).<BR><B>RESULTS: </B>All incisions healed by first intention and no complications related to the operation occurred. All patients were followed up 10-12 months, with an average of 11 months. HSS score and AKS score of the two groups at 6 months after operation were significantly higher than those before operation ( P<0.05), but there was no significant difference between the two groups ( P>0.05). Postoperative X-ray films showed that the prosthesis was in good position, and no prosthesis loosening or sinking occurred during follow-up. HKA, PCA, and PFA significantly improved in the two groups at 10 months after operation compared with those before operation ( P<0.05). There was no significant difference in HKA at 10 months between the two groups ( t=1.031, P=0.307). PCA and PFA in the guide group were smaller than those in the control group ( P<0.05).<BR><B>CONCLUSIONS: </B>Application of 3D printing guide plate in TKA can not only correct the deformity of the knee joint and alleviate the pain symptoms, but also achieve the goal of the accurate femoral rotation alignment and good patellar tracking.<BR><B>UNASSIGNED: </B>探讨人工全膝关节置换术（total knee arthroplasty，TKA）中采用 3D 打印导板辅助定位改善股骨旋转对线及髌骨轨迹的效果。.<BR><B>UNASSIGNED: </B>选择 2018 年 1 月—10 月 60 例（60 膝）接受 TKA 治疗且符合选择标准的膝关节晚期骨关节炎患者作为研究对象，按照随机数字表法分为两组，每组 30 例。导板组行 3D 打印导板辅助下 TKA，对照组行传统 TKA。两组患者性别、年龄、病程、侧别以及术前髋-膝-踝角（hip-knee-ankle angle，HKA）、股骨后髁角（posterior condylar angle，PCA）、髌骨横轴-股骨通髁线角（patella transverse axis-femoral transepicondylar axis angle，PFA）、美国特种医院（HSS）评分、美国膝关节协会（AKS）评分比较，差异均无统计学意义（ P>0.05）。.<BR><B>UNASSIGNED: </B>患者术后切口均Ⅰ期愈合，无手术相关并发症发生。两组患者均获随访，随访时间 10～12 个月，平均 11 个月。两组术后 6 个月 HSS 评分及 AKS 评分均较术前明显提高（ P<0.05），组间比较差异无统计学意义（ P>0.05）。术后 X 线片复查示假体位置良好，随访期间无假体松动、下沉等发生。两组术后 10 个月 HKA、PCA、PFA 均较术前明显改善（ P<0.05）；两组 HKA 比较差异无统计学意义（ t=1.031， P=0.307）；导板组 PCA、PFA 均明显小于对照组（ P<0.05）。.<BR><B>UNASSIGNED: </B>3D 打印导板辅助 TKA 不仅能矫正膝关节畸形及减轻疼痛症状，还能达到股骨旋转对线准确、恢复良好髌骨轨迹的目标。.