Evaluation of the incidence of postoperative deep vein thrombosis in the lower limbs in robotic-assisted TKA compared to conventional TKA
10.3760/cma.j.cn121113-20250207-00114
- VernacularTitle:机器人辅助对全膝关节置换术后下肢深静脉血栓形成发生率的影响
- Author:
Ziyang DONG
1
;
Cheng WANG
;
Shantao ZHANG
;
Yipu ZHANG
;
Yang LI
;
Hua TIAN
Author Information
1. 北京大学第三医院骨科（骨与关节精准医学教育部工程中心），北京 100191
- Publication Type:Journal Article
- Keywords:
Arthroplasty, replacement, knee;
Robotic surgical procedures;
Venous thrombosis;
Postoperative complications;
Perioperative period
- From:
Chinese Journal of Orthopaedics
2025;45(16):1033-1039
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the effect of robot-assisted total knee arthroplasty (TKA) on the incidence of postoperative deep vein thrombosis (DVT) in the lower limbs.Methods:A total of 405 patients who underwent primary unilateral TKA in the Department of Orthopaedics, Peking University Third Hospital from June 2022 to June 2024 were retrospectively analyzed, consisting of 89 males and 316 females, with a mean age of 67.84±5.60 years. Patients were divided into the conventional group ( n=215) and the robot-assisted group ( n=190) according to the surgical approach. Postoperative DVT incidence, operative time, postoperative hemoglobin and hematocrit levels, perioperative blood loss, and transfusion rate were compared between the two groups to evaluate the impact of robot-assisted TKA on thrombotic events and related clinical indicators. Results:There were no significant differences in age, sex, height, weight, body mass index, or preoperative laboratory results including hemoglobin and hematocrit levels between the two groups ( P>0.05). The postoperative DVT incidence was 26.8% (51/190) in the robot-assisted group and 34.9% (75/215) in the conventional group, with no significant difference ( P>0.05). Univariate logistic regression analysis showed that sex ( P=0.013) and age ( P=0.024) were significantly associated with DVT occurrence. Multivariate logistic regression further revealed that female patients had a significantly higher incidence of DVT than males ( OR=0.438, P=0.005), and older patients had a significantly increased risk of DVT ( OR=1.046, P=0.025); body mass index remained not significantly associated with DVT ( P=0.092). The operative time in the robot-assisted group was 88.62±18.58 min, which was significantly longer than that in the conventional group 79.23±17.68 min ( t=-5.207, P<0.001). Perioperative total blood loss was 1 079.85±344.18 ml in the robot-assisted group and 1 141.47±363.70 ml in the conventional group, with no significant difference ( t=1.745, P=0.082). The transfusion rate was 5.3% in the robot-assisted group and 5.1% in the conventional group, respectively, with no significant differences (χ 2=0.004, P=0.947). Conclusion:Compared with conventional TKA, robot-assisted TKA results in longer operative time but does not increase perioperative blood loss or the risk of postoperative DVT.
