scholarly journals Leg position influences early blood loss and functional recovery following total knee arthroplasty: A randomized study

2015 ◽  
Vol 23 ◽  
pp. 82-86 ◽  
Author(s):  
Yang Yang ◽  
Lv Yong-ming ◽  
Ding Pei-jian ◽  
Li Jia ◽  
Zhang Ying-ze
Keyword(s):  
Total Knee Arthroplasty ◽  
Blood Loss ◽  
Functional Recovery ◽  
Knee Arthroplasty ◽  
Randomized Study ◽  
Total Knee ◽  
Leg Position

scholarly journals After Total Knee Arthroplasty Different Knee Position Bring Distinct Effects-a Prospective Study of One Hundred Patients

2021 ◽  
Author(s):  
ke zheng ◽  
Wen-xiang Liu ◽  
Jie-bin Zhang
Keyword(s):  
Total Knee Arthroplasty ◽  
Blood Loss ◽  
Functional Recovery ◽  
Knee Arthroplasty ◽  
Randomized Study ◽  
Osteoarthritis Of The Knee ◽  
Total Blood ◽  
Number Of Patients ◽  
Extension Group ◽  
Total Knee

Abstract Background Following total knee arthroplasty (TKA) blood loss is a major factor influencing functional recovery and quality of life in patients. The aim of this study was to determine the effect of postoperative leg position on blood loss and functional recovery after TKA.Methods One hundred consecutive patients were enrolled in this prospective randomized study, which with degenerative osteoarthritis of the knee. An equal number of patients were randomly allocated to either flexion or extension groups. In the flexion group, the affected leg was elevated 45° at the hip and with 45° of flexion at the knee, while patients in the extension group had the knee extended fully. Primary outcomes were calculated total blood loss (CBL), hidden blood loss(HBL), intraoperative blood loss(IBL),haemoglobin(HB) level and haematocrit(HCT).Results CBL, HBL, postoperative levels of HB and HCT, drop level of HB and HCT between the two groups after 72 hours were significantly different, with patients in the flexion group experiencing lower blood loss than those in the extension group (P < 0.05).However, there no difference between groups in the postoperative levels of HB and HCT, drop level of HB and HCT at 24 hours. Even though after 1 week range of motion (ROM) was statistical difference in groups, but after 6-week rehabilitation, patients from both groups attained a similar ROM in the knee. Conclusions The results of this study definite that after TKA execute the protocol，maintaining a position with the hip 45°flexion and the knee flexed at 45° prolong 48 hours, is an effective method for reducing blood loss and increasing functional ROM.

scholarly journals Effect of Tourniquet use on Blood Loss, Pain, Functional Recovery, and Complications in Robot-assisted Total Knee Arthroplasty: A Prospective, Double-blinded, Randomized Controlled Trial

2021 ◽  
Author(s):  
Yahao Lai ◽  
Hong Xu ◽  
Qiang Su ◽  
Xufeng Wan ◽  
Mingcheng Yuan ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Length Of Stay ◽  
Blood Loss ◽  
Range Of Motion ◽  
Functional Recovery ◽  
Knee Arthroplasty ◽  
Total Blood Loss ◽  
Robot Assisted ◽  
Total Blood ◽  
Total Knee

Abstract Background: Robot-assisted total knee arthroplasty (TKA) has been largely studied to confirm its advantages in terms of accurate component positioning, microembolus formation, less blood loss and so on, but is currently usually performed under tourniquet due to its longer operative time than conventional TKA. The aim of this study was to estimate the effects of tourniquet use in robot-assisted TKA on blood loss, pain, functional recovery, and complications.Methods: Patients scheduled for robot-assisted TKA were prospectively randomized into a tourniquet or non-tourniquet group (each n = 14). The primary outcome measure was blood loss. The secondary outcome measures were operation time; visual analog scale (VAS) pain scores; time to achieve the first straight-leg raise; swelling of the thigh, knee, and calf; range of motion; Hospital for Special Surgery score; length of stay; and postoperative complications. Results: There was no significant difference in total blood loss between the tourniquet and non-tourniquet groups (738.57 ± 276.158 vs. 866.85 ± 243.422 ml, P = 0.061). The tourniquet group showed significantly lower intraoperative blood loss (P < 0.001), but higher hidden blood loss (P = 0.002). The non-tourniquet group showed better knee range of motion on POD 1-3 (all P < 0.001), less thigh swelling on PODs 2 and 3 (P < 0.05), earlier straight-leg raising (P = 0.044), and shorter length of stay (P = 0.044). Thigh pain VAS score at 1 month after surgery was significantly greater in the tourniquet group (P < 0.001), as was knee pain during activity and at rest on PODs 2-3 (all P < 0.05). The tourniquet group also showed a significantly higher rate of tension blisters (28.8% vs. 7.1%, P = 0.038). Conclusions: Tourniquet use during robot-assisted TKA dose not reduce total blood loss and it appears to increase postoperative pain, aggravate muscle injury, and prolong postoperative recovery.Trial registration: ChiCTR, ChiCTR2100041800. Registered 5 January 2021, http://www.chictr.org.cn/index.aspx

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