| Autor: |
KAZUTAKA HATA, YASUHIRO ISHIDO, KIYOHIRO FUKUDOME, RYOJI KIYAMA, MASAYUKI KAWADA, TOMOHIRO NISHI, SHINTARO NAKATSUJI, KAZUNORI YONE |
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| Zdroj: |
Acta of Bioengineering & Biomechanics; 2023, Vol. 25 Issue 3, p15-21, 11p |
| Abstrakt: |
Purpose: Investigation of the relationship between changes in hip-joint center and hip loading pre- and post-total hip arthroplasty (THA) is important in evaluating the effect of surgery on motor function. However, few longitudinal studies comparing pre- and post- THA have been reported. The purpose of this study was to determine the effect of changes in hip-joint center pre- and post-THA on the magnitude and direction of hip-joint contact force during the gait cycle, using a patient-specific musculoskeletal model. Methods: The simulation program AnyBody was used to create musculoskeletal models incorporating patient specific hip-joint shape and hip-joint center position for 17 patients. The relationship between the displacement distance of the hip-joint center and the amount of change in hip-joint contact force was examined by correlation analysis. Results: A decrease in the medial force (p ≤ 0.049) and an increase in the anterior force (p ≤ 0.001) acting on the hip joint were observed during gait post-THA compared to pre-THA. Mediolateral displacement of the hip-joint center post-THA compared to pre-THA was significantly positively correlated with the difference in anterior hip-joint contact force, and negatively to hip-joint medial contact force. Conclusions: Longitudinal observations revealed the effects of change in hip-joint center position induced by THA on the hip-joint contact force during gait. Therefore, the change of hip-joint center position during THA can be an important factor for estimating the improvement of motor function following THA. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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