Highlights
- •Muscle density of anterior gluteus minimus was significantly lower than that of posterior.
- •Muscle density of anterior gluteus minimus and height were the independent predictors for step.
- •Muscle density of anterior gluteus minimus was the only factor determining walking speed.
Abstract
Background
The purpose of this study is to investigate the relationship between gait and fat
infiltration in anterior and posterior gluteus minimus in the patients with hip osteoarthritis.
Methods
Ninety-one female patients who were diagnosed as the unilateral hip osteoarthritis,
classified into Kellgren-Lawrence global scoring system grades 3 or 4, and candidate
for total hip arthroplasty were retrospectively reviewed. The horizontally cross-sectional
regions of interest for the gluteus medius and anterior and posterior gluteus minimus
were manually circumscribed in a single transaxial computed tomography image and muscle
density of those regions were obtained. The gait was assessed as the step and speed
with the 10-Meter Walk Test. The multiple regression analysis was used to compare
the step and speed with age, height, range of motion in flexion, the muscle density
of anterior gluteus minimus in the affected side, and that of gluteus medius muscle
in both affected and unaffected sides.
Findings
Multiple regression analysis for step revealed that the muscle density of anterior
gluteus minimus in the affected side and height were the independent predictors for
step (R2 = 0.389, p < 0.001). That for speed identified the muscle density of anterior gluteus minimus
in the affected side as the only factor determining speed (R2 = 0.287, p < 0.001).
Interpretation
The fatty infiltration of anterior gluteus minimus muscle in affected side can be
a predictor for the gait in in female with unilateral hip osteoarthritis and candidates
for total hip arthroplasty.
Keywords
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Article info
Publication history
Published online: February 20, 2023
Accepted:
February 16,
2023
Received:
November 14,
2022
Identification
Copyright
© 2023 Elsevier Ltd. All rights reserved.
