Relationship Between Gait Stability After Total Knee Arthroplasty and Preoperative Physical Function and Gait Variability: A Cross-Sectional Study
Abstract
Background Gait analysis studies have provided valuable insights into gait variability and patterns across various patient populations. However, limited research has examined the relationship between preoperative physical functions, gait variability, and walking independence following total knee arthroplasty (TKA). This study aims to evaluate the potential utility of accelerometers for assessing preoperative gait characteristics by investigating the association between preoperative gait variability, physical functions, and the time required to achieve cane-walking independence after TKA. Methods We assessed 68 patients who underwent unilateral TKA. Preoperative physical therapy evaluations included measurements of knee flexion range of motion (ROM), knee extensor strength, walking pain, 10-meter walking speed (10 MWS), and gait coefficient of variation (CV). An acceleration sensor was attached to the spinous process of the third lumbar vertebra during walking to obtain CV results. A correlation analysis was then performed to examine the relationship between preoperative assessments and the number of days required to achieve cane-walking independence after TKA. Results The number of days required for cane-walking independence after TKA was negatively correlated with knee flexion ROM (r = -0.264, p < 0.05), knee extensor strength (r = -0.410, p < 0.01), and 10 MWS (r = -0.365, p < 0.01). In contrast, it was positively correlated with gait cycle CV (r = 0.374, p < 0.01).…
How strong is the evidence?
Evidence Hub reads this as a cross-sectional, done in people. Its evidence level is 4 of 5 (Low · observational). Observational designs can show an association but not prove cause. Reported size: 68 participants or records.
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