Proposal of accurate cup placement procedure during total hip arthroplasty based on pelvic tilt discrepancies in the lateral position
Abstract By combining the anatomical-pelvic-plane (APP) positioner with a newly improved navigation system during total hip arthroplasty (THA), it is theoretically possible to determine cup orientation based on the APP while tracking pelvic movement. The purpose of this study was to determine the na...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2021-07-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-021-93418-y |
| _version_ | 1818999137316634624 |
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| author | Manabu Tsukamoto Makoto Kawasaki Hitoshi Suzuki Teruaki Fujitani Akinori Sakai |
| author_facet | Manabu Tsukamoto Makoto Kawasaki Hitoshi Suzuki Teruaki Fujitani Akinori Sakai |
| author_sort | Manabu Tsukamoto |
| collection | DOAJ |
| description | Abstract By combining the anatomical-pelvic-plane (APP) positioner with a newly improved navigation system during total hip arthroplasty (THA), it is theoretically possible to determine cup orientation based on the APP while tracking pelvic movement. The purpose of this study was to determine the navigation accuracy and whether the error is related to the pelvic position fixed by the positioner. Fifty hips that underwent primary THA between 2018 and 2020 were analysed. The accuracy was 2.34° at radiographic inclination (RI) and − 5.01° at radiographic anteversion (RA), and the error was within 10° at both RI and RA in only 40 of 50 hips (80.0%). The discrepancy in pelvic sagittal tilt was correlated with the cup orientation error and especially strongly correlated with the RA error (r = − 0.751, p < 0.001). When RI and RA were calculated using a correction formula to determine the true cup orientation based on the pelvic tilt discrepancies, the error in both RI and RA was within 10° in all cases (100%). The navigation accuracy is related to the pelvic position fixed by the positioner, and the correction formula for the target angle that considers pelvic tilt discrepancies can lead to accurate cup placement in the future. |
| first_indexed | 2024-12-20T22:12:38Z |
| format | Article |
| id | doaj.art-c33ebd1aa2c449a0935f23cfac7b7aee |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-20T22:12:38Z |
| publishDate | 2021-07-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-c33ebd1aa2c449a0935f23cfac7b7aee2022-12-21T19:25:08ZengNature PortfolioScientific Reports2045-23222021-07-011111910.1038/s41598-021-93418-yProposal of accurate cup placement procedure during total hip arthroplasty based on pelvic tilt discrepancies in the lateral positionManabu Tsukamoto0Makoto Kawasaki1Hitoshi Suzuki2Teruaki Fujitani3Akinori Sakai4Department of Orthopaedic Surgery, School of Medicine, University of Occupational and Environmental HealthDepartment of Orthopaedic Surgery, School of Medicine, University of Occupational and Environmental HealthDepartment of Orthopaedic Surgery, School of Medicine, University of Occupational and Environmental HealthDepartment of Orthopaedic Surgery, School of Medicine, University of Occupational and Environmental HealthDepartment of Orthopaedic Surgery, School of Medicine, University of Occupational and Environmental HealthAbstract By combining the anatomical-pelvic-plane (APP) positioner with a newly improved navigation system during total hip arthroplasty (THA), it is theoretically possible to determine cup orientation based on the APP while tracking pelvic movement. The purpose of this study was to determine the navigation accuracy and whether the error is related to the pelvic position fixed by the positioner. Fifty hips that underwent primary THA between 2018 and 2020 were analysed. The accuracy was 2.34° at radiographic inclination (RI) and − 5.01° at radiographic anteversion (RA), and the error was within 10° at both RI and RA in only 40 of 50 hips (80.0%). The discrepancy in pelvic sagittal tilt was correlated with the cup orientation error and especially strongly correlated with the RA error (r = − 0.751, p < 0.001). When RI and RA were calculated using a correction formula to determine the true cup orientation based on the pelvic tilt discrepancies, the error in both RI and RA was within 10° in all cases (100%). The navigation accuracy is related to the pelvic position fixed by the positioner, and the correction formula for the target angle that considers pelvic tilt discrepancies can lead to accurate cup placement in the future.https://doi.org/10.1038/s41598-021-93418-y |
| spellingShingle | Manabu Tsukamoto Makoto Kawasaki Hitoshi Suzuki Teruaki Fujitani Akinori Sakai Proposal of accurate cup placement procedure during total hip arthroplasty based on pelvic tilt discrepancies in the lateral position Scientific Reports |
| title | Proposal of accurate cup placement procedure during total hip arthroplasty based on pelvic tilt discrepancies in the lateral position |
| title_full | Proposal of accurate cup placement procedure during total hip arthroplasty based on pelvic tilt discrepancies in the lateral position |
| title_fullStr | Proposal of accurate cup placement procedure during total hip arthroplasty based on pelvic tilt discrepancies in the lateral position |
| title_full_unstemmed | Proposal of accurate cup placement procedure during total hip arthroplasty based on pelvic tilt discrepancies in the lateral position |
| title_short | Proposal of accurate cup placement procedure during total hip arthroplasty based on pelvic tilt discrepancies in the lateral position |
| title_sort | proposal of accurate cup placement procedure during total hip arthroplasty based on pelvic tilt discrepancies in the lateral position |
| url | https://doi.org/10.1038/s41598-021-93418-y |
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