Relationship between iliopsoas muscle surface pressure and implant alignment after total hip arthroplasty: a cadaveric study
Abstract 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...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-03-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-023-30734-5 |
| _version_ | 1797864965004066816 |
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| author | Yasuaki Tamaki Tomohiro Goto Joji Iwase Keizo Wada Yasuyuki Omichi Daisuke Hamada Yoshihiro Tsuruo Koichi Sairyo |
| author_facet | Yasuaki Tamaki Tomohiro Goto Joji Iwase Keizo Wada Yasuyuki Omichi Daisuke Hamada Yoshihiro Tsuruo Koichi Sairyo |
| author_sort | Yasuaki Tamaki |
| collection | DOAJ |
| description | Abstract 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. |
| first_indexed | 2024-04-09T23:01:26Z |
| format | Article |
| id | doaj.art-23936a7810644846853933859c3203a3 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-09T23:01:26Z |
| publishDate | 2023-03-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-23936a7810644846853933859c3203a32023-03-22T10:58:10ZengNature PortfolioScientific Reports2045-23222023-03-011311810.1038/s41598-023-30734-5Relationship between iliopsoas muscle surface pressure and implant alignment after total hip arthroplasty: a cadaveric studyYasuaki Tamaki0Tomohiro Goto1Joji Iwase2Keizo Wada3Yasuyuki Omichi4Daisuke Hamada5Yoshihiro Tsuruo6Koichi Sairyo7Department of Orthopedics, Institute of Biomedical Sciences, Tokushima University Graduate SchoolDepartment of Orthopedics, Institute of Biomedical Sciences, Tokushima University Graduate SchoolDepartment of Orthopedics, Institute of Biomedical Sciences, Tokushima University Graduate SchoolDepartment of Orthopedics, Institute of Biomedical Sciences, Tokushima University Graduate SchoolDepartment of Orthopedics, Institute of Biomedical Sciences, Tokushima University Graduate SchoolDepartment of Orthopedics, Institute of Biomedical Sciences, Tokushima University Graduate SchoolDepartment of Anatomy and Cell Biology, Institute of Biomedical Sciences, Tokushima University Graduate SchoolDepartment of Orthopedics, Institute of Biomedical Sciences, Tokushima University Graduate SchoolAbstract 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.https://doi.org/10.1038/s41598-023-30734-5 |
| spellingShingle | Yasuaki Tamaki Tomohiro Goto Joji Iwase Keizo Wada Yasuyuki Omichi Daisuke Hamada Yoshihiro Tsuruo Koichi Sairyo Relationship between iliopsoas muscle surface pressure and implant alignment after total hip arthroplasty: a cadaveric study Scientific Reports |
| title | Relationship between iliopsoas muscle surface pressure and implant alignment after total hip arthroplasty: a cadaveric study |
| title_full | Relationship between iliopsoas muscle surface pressure and implant alignment after total hip arthroplasty: a cadaveric study |
| title_fullStr | Relationship between iliopsoas muscle surface pressure and implant alignment after total hip arthroplasty: a cadaveric study |
| title_full_unstemmed | Relationship between iliopsoas muscle surface pressure and implant alignment after total hip arthroplasty: a cadaveric study |
| title_short | Relationship between iliopsoas muscle surface pressure and implant alignment after total hip arthroplasty: a cadaveric study |
| title_sort | relationship between iliopsoas muscle surface pressure and implant alignment after total hip arthroplasty a cadaveric study |
| url | https://doi.org/10.1038/s41598-023-30734-5 |
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