Department of Medicine, Imperial College London, South Kensington Campus, London, UK.
Department of Orthopaedics, Imperial College Healthcare NHS Trust, Charing Cross Hospital, London, UK.
Int J Med Robot. 2021 Dec;17(6):e2308. doi: 10.1002/rcs.2308. Epub 2021 Jul 27.
The purpose of this study was to compare total blood loss and the risk of receiving a blood transfusion in robotic-assisted total knee arthroplasty (TKA) and unicompartmental knee arthroplasty (UKA) against conventional jig-based techniques.
Robotic TKA (n = 50) and UKA (n = 50) patients were matched to contemporary controls for TKA (n = 50) and UKA (n = 50) and retrospectively analysed.
Robotic TKA patients experienced 23.7% less blood loss compared to conventional TKA patients (911.0 ml vs 1193.7 ml, p < 0.01), and were associated with an 83% relative risk reduction of receiving a transfusion (2% of patients vs 12%, p = 0.02). Robotic UKA patients did not demonstrate less blood loss compared to corresponding controls (821.7 ml vs 854.7 ml, p = 0.69). Both UKA groups received no transfusions.
Robotic surgical systems in TKA reduces blood loss and lowers the risk of requiring a blood transfusion. In UKA, robotic-assisted arthroplasty did not reduce blood loss compared to conventional arthroplasty.
本研究旨在比较机器人辅助全膝关节置换术（TKA）和单髁膝关节置换术（UKA）与传统基于夹具技术相比的总失血量和输血风险。
将 50 例机器人 TKA 和 UKA 患者与同期 TKA（n=50）和 UKA（n=50）的对照组进行匹配，并进行回顾性分析。
与传统 TKA 患者相比，机器人 TKA 患者的失血量减少了 23.7%（911.0ml 比 1193.7ml，p<0.01），输血风险降低了 83%（2%的患者比 12%，p=0.02）。机器人 UKA 患者与相应的对照组相比，失血量并没有减少（821.7ml 比 854.7ml，p=0.69）。两组 UKA 患者均未输血。
在 TKA 中，机器人手术系统可减少失血量并降低输血风险。在 UKA 中，与传统关节置换术相比，机器人辅助关节置换术并未减少失血量。
