徳島大学 教育・研究者情報データベース(EDB)

1. 玉置 康晃([徳島大学.病院.先端医科医療開発研究プロジェクト]/[徳島大学.病院.診療科.感覚·皮膚·運動機能科.整形外科])

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2. 後東 知宏

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3. 岩瀬 穣志([徳島大学.大学院医歯薬学研究部.医学域.連携研究部門(医学域).寄附講座系(医学域).地域運動器・スポーツ医学])

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4. 和田 佳三([徳島大学.病院.中央診療施設等.クリニカルアナトミー教育・研究センター])

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5. 大道 泰之

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6. 浜田 大輔

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7. 鶴尾 吉宏

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8. 西良 浩一([徳島大学.大学院医歯薬学研究部.医学域.医科学部門.外科系.運動機能外科学])

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(英) Relationship between iliopsoas muscle surface pressure and implant alignment after total hip arthroplasty: a cadaveric study.

(日) Iliopsoas impingement after total hip arthroplasty is caused by the implant irritating the iliopsoas muscle, but changes in the iliopsoas muscle have not been quantitatively evaluated. This study assessed changes in the surface pressure of the iliopsoas muscle when the implant alignment was varied. Total hip arthroplasty was performed in 10 fresh-frozen cadaveric hips. We evaluated the maximum and mean surface pressure of the iliopsoas muscle with the hip in 20° and 10° extension, the neutral position, and 10° flexion when the anterior cup protrusion length (ACPL), stem version, and stem offset were varied. When the ACPL was changed to 0, 3, and 6 mm in 20° extension, the maximum surface pressure was significantly increased for ACPL of 6 mm compared with 0 mm. Decreased stem anteversion resulted in a significant reduction in both the maximum and mean surface pressure compared with native anteversion from 20° extension to the neutral position. Increased stem offset resulted in significant increases in the maximum and mean surface pressure of the iliopsoas muscle compared with decreased stem offset in 20° extension. Not only large ACPL but also changes in stem version and offset affected the maximum surface pressure of the iliopsoas muscle.

1. (英) Humans
2. (英) Arthroplasty, Replacement, Hip
3. (英) Prostheses and Implants
4. (英) Plastic Surgery Procedures
5. (英) Cadaver
6. (英) Muscles

1. (英) PublicationType: Journal Article

2. (英) PublicationType: Research Support, Non-U.S. Gov't