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Researchers compared gait mechanics, functional performance, and quality-of-life (QoL) outcomes among patients undergoing lateral unicompartmental knee arthroplasty (UKA-L), total knee arthroplasty (TKA), and healthy controls.
Patients undergoing lateral unicompartmental knee arthroplasty achieve walking patterns that closely resemble those of healthy individuals while reporting higher satisfaction and QoL.
Researchers compared gait mechanics, functional performance, and quality-of-life (QoL) outcomes among patients undergoing lateral unicompartmental knee arthroplasty (UKA-L), total knee arthroplasty (TKA), and healthy controls.
A comparative gait analysis was conducted involving 20 recipients of UKA-L, 28 patients with unilateral TKA, and 22 matched healthy controls. Participants underwent instrumented treadmill testing to assess walking speed, stride characteristics, temporospatial gait parameters, and vertical ground reaction forces. Functional outcomes and health-related QoL were evaluated using the Oxford Knee Score (OKS) and EuroQol five-dimension questionnaire (EQ-5D).
Patients who underwent UKA-L showed faster walking speeds, more normal gait patterns, and better patient-reported outcomes than those who received TKA (Table 1). The UKA-L group also achieved longer step and stride lengths, by 12% and 10%, respectively, compared with TKA recipients.
Overall, UKA-L delivered faster walking, longer strides, better knee function, and higher QoL than TKA.
To conclude, UKA-L was associated with a combination of near-normal gait mechanics, improved mobility, and enhanced patient-reported outcomes.
Bone & Joint Research
Lateral unicompartmental knee arthroplasty is associated with nearer-normal gait characteristics and higher patient satisfaction compared to total knee arthroplasty
Amy J. Garner et al.
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