Gait mechanics are influenced by quadriceps strength, age, and sex after total knee arthroplasty.
Gait mechanics are influenced by quadriceps strength, age, and sex after total knee arthroplasty.
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DOI：
10.1002/jor.24878
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发表时间：
2021-07
期刊：
影响因子：
--
通讯作者：
Zeni JA
中科院分区：
文献类型：
--
作者：
Christensen JC;Capin JJ;Hinrichs LA;Aljehani M;Stevens-Lapsley JE;Zeni JA
Although most patients are satisfied with outcomes after total knee arthroplasty (TKA), many retain preoperativealteredgait mechanics. Identifying patient characteristics associated with gait mechanics will improve rehabilitation strategies and enhance our understanding of movement disorders. Therefore, the purpose of this study was to identify which patient characteristicsare related to gait mechanics in the surgical limbduring walking post-TKA.Patient characteristicsincluded age, body mass, sex, quadriceps strength, self-reported function and knee pain. General linear regressionwas used to compare patient characteristicsassociated with gait mechanics, after controlling for gait speed, functional capacity and time from surgery.We tested 191 patients cross-sectionally at 6 to 24 monthsafter primary, unilateral TKA.Quadriceps weakness in the surgical limb was associated with less peakvertical ground reaction force (PvGRF) (β=0.245, p=0.044), knee extension moment(β=0.283, p=0.049) andknee extension excursion (β=0.298, p=0.038). Older age (β=0.168, p=0.050) was associated with less PvGRF.Quadriceps strength in the non-surgical limb (β=−0.357,p=0.021) was associated with greater knee extension excursion in the surgical limb. Females with TKA (β=−0. 276, p=0.007) had less knee flexion excursion compared to males.Faster gait speed was also associated with greater PvGRF (β=0.585, p<0.001), knee extensor moment (β=0.481, p<0.001) and knee flexion excursion (β=0.318, p<0.001). This study showedquadriceps weakness, slower gait speed, older age and beingfemalewere related to altered gait mechanics post-TKA. These findingswill help clinicians better educatepatients and develop targeted interventions for improving care in patients post-TKA.
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DOI：
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发表时间：
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影响因子：
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作者：
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