Chinese Journal of Tissue Engineering Research ›› 2025, Vol. 29 ›› Issue (15): 3159-3164.doi: 10.12307/2025.119

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Timing of total knee arthroplasty with tourniquet under navigation system: a single-center, retrospective analysis

Pan Hao, Yang Meng, Liu Guoqiang   

  1. Cangzhou Hospital of Integrated Traditional Chinese and Western Medicine in Hebei Province, Hebei Province Key Laboratory of Integrated Traditional Chinese and Western Medicine Osteoarthritis Research, Cangzhou 061000, Hebei Province, China 

  • Received:2023-12-11 Accepted:2024-01-20 Online:2025-05-28 Published:2024-11-04
  • Contact: Liu Guoqiang, Master, Chief physician, Cangzhou Hospital of Integrated Traditional Chinese and Western Medicine in Hebei Province, Hebei Province Key Laboratory of Integrated Traditional Chinese and Western Medicine Osteoarthritis Research, Cangzhou 061000, Hebei Province, China
  • About author:Pan Hao, Master, Attending physician, Cangzhou Hospital of Integrated Traditional Chinese and Western Medicine in Hebei Province, Hebei Province Key Laboratory of Integrated Traditional Chinese and Western Medicine Osteoarthritis Research, Cangzhou 061000, Hebei Province, China Yang Meng, Master, Physician, Cangzhou Hospital of Integrated Traditional Chinese and Western Medicine in Hebei Province, Hebei Province Key Laboratory of Integrated Traditional Chinese and Western Medicine Osteoarthritis Research, Cangzhou 061000, Hebei Province, China Pan Hao and Yang Meng contributed equally to this article.

Abstract: BACKGROUND: The timing of tourniquet application in traditional total knee arthroplasty has been clearly reported. With the continuous refinement of joint-related techniques, the timing of tourniquet application in total knee arthroplasty under navigation system has rarely been reported. 
OBJECTIVE: To evaluate the effect of total knee arthroplasty with Brainlab navigation system using full-course and half-course tourniquets. 
METHODS: From January to December 2022, data of 145 eligible patients who underwent total knee arthroplasty under navigation system in Cangzhou Hospital of Integrated Traditional Chinese and Western Medicine in Hebei Province were retrospectively analyzed and they were divided into the full course group (n=71) and the half course group (n=74) according to the timing of tourniquet release. General data, perioperative conditions, postoperative swelling around the knee joint, postoperative lower extremity deep venous thrombosis, visual analog scale score, Hospital for Special Surgery knee score, and forgotten joint score were collected to assess knee joint function and statistically compared. 
RESULTS AND CONCLUSION: (1) The operation time of the full course group was shorter than that of the half course group, the incidence of lower extremity deep venous thrombosis was higher, and the postoperative knee joint swelling was more severe (P < 0.001, P = 0.027, P < 0.001). The intraoperative blood loss of the full course group was less than that of the half course group (P < 0.001), and the occult blood loss of the full course group was more than that of the half course group (P < 0.001), with statistically significant differences. (2) At 1 week after surgery, the visual analog scale score in the full course group was significantly higher than that in the half course group (P < 0.001). (3) There was no significant difference in forgotten joint score between the two groups at 3, 6 months and 1 year after surgery (P > 0.05). (4) It is indicated that in patients undergoing total knee arthroplasty using a navigation system, the half-course group has less occult blood loss, lower postoperative swelling and incidence of postoperative lower extremity deep venous thrombosis, and faster recovery of knee joint function.

中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱;骨折;内固定;数字化骨科;组织工程

Key words: navigation system, total knee arthroplasty, tourniquet, knee joint function, forgotten joint score

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