Swelling Management After Total Knee Arthroplasty

  • STATUS
    Recruiting
  • participants needed
    10
  • sponsor
    University of Colorado, Denver
Updated on 3 October 2022

Summary

The purpose of this feasibility study is to estimate the initial efficacy and feasibility of an inelastic compression garment donned immediately after TKA on peak swelling in 14 subjects.

Description

Total knee arthroplasty (TKA) is the most commonly performed surgical procedure in older adults and is expected to increase five-fold by 2040 to 3.5 million TKAs annually. Although TKA is effective at reducing pain and improving self-reported quality of life, postoperative knee swelling after TKA is profound with the average level of swelling peaking at a 35% increase in the first 6-8 days after surgery and persisting months after surgery. Postoperative swelling is associated with a 60% decrease in quadriceps strength in the first month after surgery leading to decreases in functional performance of up to 90%. Patients can exhibit chronic strength deficits on the order of 28-42% based on comparisons with age-matched controls years after surgery. Quadriceps weakness results in long-term decreases in gait speed, balance, stair-climbing ability, chair rise ability, increased risk for falls and disability later in life. Additionally, postoperative knee swelling has also been associated with increased pain, decreased range of motion (ROM) and post-surgical complications such as deep venous thrombosis (DVT) and infection. Traditional postoperative interventions such as elastic compression stockings (e.g., thromboembolism-deterrent (TED) hose) have demonstrated minimal effectiveness in reducing swelling after TKA. We have demonstrated in a preliminary study (N=16) that an inelastic, adjustable compression garment, commonly utilized to manage patients with chronic lymphedema, can decrease postoperative cumulative swelling by 50% in the early postoperative period. With this data, the garment was not applied until postoperative day 4 and thus it had minimal effect on the peak swelling noted after surgery. Peak swelling, not cumulative, is associated with strength and function after TKA. Therefore, this feasibility study aims to mitigate peak swelling by donning the compression garment immediately after surgery in the operating room. It also seeks to assess the feasibility of the intervention from the subjects' perspective.

Specific Aim 1:

Estimate the effect of immediate compression garment (ICG) on the primary outcome of swelling at 4 days and 1, 2, 3, and 6 weeks postoperative.

Hypothesis: The ICG group will have less swelling at 4 days and 1, 2, 3, and 6 weeks postoperative compared to historical controls.

Specific Aim 2:

Determine the participant feasibility of ICG by assessing 1) satisfaction and 2) adherence.

Hypothesis 3.1: Study participants will indicate acceptability of compression garment wear with a median score of at least 4/5 ("somewhat satisfied") on a 5-point Likert scale satisfaction survey.

Hypothesis 3.2: An 80% adherence rate will be observed for compression garment wear as assessed by a patient log.

Details
Condition Repair of knee joint, total knee arthroplasty, knee replacements, Knee Replacement, total knee replacement, knee arthroplasty, Knee Surgery
Treatment Immediate Compression Garment
Clinical Study IdentifierNCT04841356
SponsorUniversity of Colorado, Denver
Last Modified on3 October 2022

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