Sit-to-Stand Movement as a Performance-Based Measure for Patients With Total Knee Arthroplasty

Abstract

Implantation of a total knee prosthesis partly improved performance of the sit-to-stand movement. Participants in the TKA group could fully load their operated leg, but they could not generate enough knee angular velocity during rising compared with the control group.

Kinematics and knee muscle activation during sit-to-stand movement in women with knee osteoarthritis

“…Surprisingly, however, the modified knee muscle co-activation strategy did not alter the overall movement duration, a finding that is not in line with previous studies reporting a longer STS duration in patients with advanced OA compared to healthy controls (Boonstra et al, 2010;Christiansen and Stevens-Lapsley, 2010;Turcot et al, 2012b). This discrepancy may have several explanations.…”

“…contribution to overall movement duration by the two groups seems unlikely. Second, longer movement duration could be due to weight bearing asymmetries in patients with advanced knee OA (Boonstra et al, 2010;Christiansen and Stevens-Lapsley, 2010;Turcot et al, 2012b), which increases medio-lateral sway during chair rising. This loading occurs with the leaning of the trunk towards the unaffected leg, in order to unload the affected one.…”

Sit-to-stand alterations in advanced knee osteoarthritis

“…Studies have already demonstrated modifications in gait [1,2], stair-climbing [3,4], unipodal stance [5], and the sit-tostand (STS) task [6][7][8]. When compared with gait and stairclimbing, STS requires greater joint forces and moments [9].…”

“…They proposed that STS may be used to objectively evaluate the biomechanical knee function following a total knee arthroplasty (TKA) [12]. To our knowledge, only a few studies have used the STS task to investigate the functional disability of patients with advanced knee OA [6,7] or patients following a TKA [8,9,[12][13][14]. In those studies, the main parameters investigated were the weightbearing asymmetry [6,7,12,14], knee motion [9,13,14], knee angular velocity [6,12], and knee and hip joint moments [9,13,14].…”

“…To our knowledge, only a few studies have used the STS task to investigate the functional disability of patients with advanced knee OA [6,7] or patients following a TKA [8,9,[12][13][14]. In those studies, the main parameters investigated were the weightbearing asymmetry [6,7,12,14], knee motion [9,13,14], knee angular velocity [6,12], and knee and hip joint moments [9,13,14]. These studies found that patients with advanced knee OA or following a TKA had a greater weight-bearing asymmetry [6,7,12,14], a decrease of hip and knee joint moments [12,16,17] and a decrease in knee angular velocity [6,12] on the affected side compared with the healthy elderly.…”