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open-access-imgOpen AccessBlood flow restriction exercise to attenuate postoperative loss of function after total knee replacement: a randomized pilot study
Rene Przkora,
Kimberly T. Sibille,
Sandra R. Victor,
Matthew Meroney,
Christiaan Leeuwenburgh,
Anna K Gardner,
Terrie Vasilopoulos,
Hari K. Parvataneni
Publication year2021
Publication title
european journal of translational myology
Resource typeJournals
PublisherPAGEPress (Italy)
Aging well is directly associated with a healthy lifestyle. The focus of this paper is to relate that attenuation of postoperative loss of muscle function after a total knee arthroplasty (TKA) is an important consideration. Because patients usually do not tolerate standard high-resistance exercise in the preoperative or postoperative period, they often experience a decline in strength and function. Therefore, we tested the feasibility and acceptability of an alternative low-resistance exercise protocol with blood flow restriction (BFR) using a tourniquet in the preoperative period for patients awaiting TKA. We recruited patients undergoing a TKA and randomized six to the BFR exercise for 4 weeks prior to surgery and four to standard of care (no exercise). We measured physical function using the Short Physical Performance Battery (SPPB), the 6-Minute Walk Test (6MWT), leg strength (peak torque), and pain (numerical pain score) 4 to 5 weeks preoperatively and 2 weeks postoperatively. The clinical management, e.g., anesthetic management, did not differ between groups. No complications were observed. Our findings demonstrate the feasibility and acceptability of the BFR intervention. Although preliminary and not powered for comparison, the BFR group demonstrated less decline in SPPB following surgery (−2.2, 95%CI:−4.4,0.1) compared to the no exercise group (−4.8, 95%CI:−7.8,−1.7). No differences were noted for the 6MWT, leg strength, and pain measurements. We conclude that preoperative low-resistance exercise using the BFR is feasible and acceptable, and this test warrants investigation as an intervention to potentially attenuate the postoperative loss of physical function after TKA.
Subject(s)anesthesia , arthroplasty , medicine , physical therapy , randomized controlled trial , surgery , tourniquet
SCImago Journal Rank0.271

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