Accuracy and safety of a new robotic arm for both femoral and acetabular side in total hip arthroplasty: a cadaveric study
Abstract Background To investigate the accuracy and safety of a newly constructed robotic arm which can cover the whole process of THA, we performed a series of robot-assisted total hip replacement on the cadaver. Methods Fifteen frozen cadaveric specimens (30 hips) were used for this study. In this...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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BMC
2023-11-01
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| Series: | Journal of Orthopaedic Surgery and Research |
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| Online Access: | https://doi.org/10.1186/s13018-023-04263-w |
| _version_ | 1827770445880885248 |
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| author | Xinzhe Lu Zian Zhang Wenzhe Wang Hao Xu Haining Zhang |
| author_facet | Xinzhe Lu Zian Zhang Wenzhe Wang Hao Xu Haining Zhang |
| author_sort | Xinzhe Lu |
| collection | DOAJ |
| description | Abstract Background To investigate the accuracy and safety of a newly constructed robotic arm which can cover the whole process of THA, we performed a series of robot-assisted total hip replacement on the cadaver. Methods Fifteen frozen cadaveric specimens (30 hips) were used for this study. In this investigation, united hip system and Longwell robotic-assisted system were used. The entire lower limb was CT scanned prior to surgery. The 3D model was produced based on CT data; the site of the prosthesis, including acetabular anteversion, inclination angle, and the position of femoral prosthesis, was planned. With the assistance of a robotic arm, the surgeon changed the parameters based on the preoperative plan and the actual condition during surgery, and completed the whole procedure. Following surgery, we measured the acetabular anteversion angle, acetabular inclination angle, femur anteversion angle, combined anteversion angle, stem angulation, and canal fill ratio. Results The parameters proved that the acetabular anteversion angle was 16.85 ± 3.00°, the acetabular inclination angle was 40.38 ± 5.37°, femur anteversion angle was 15.90 ± 9.01°, combined anteversion angle was 32.75 ± 9.03°, stem angulation was 1.84 ± 0.99°, and leg length discrepancy was 2.47 ± 1.43 mm. The canal fill ratio (CFR) of femoral prosthesis of osteotomy line in sagittal section is 99.72 ± 1.54% and in coronal section is 62.94 ± 8.91%; below osteotomy line 2.5 cm in sagittal section is 100.00% and in coronal section is 81.48 ± 12.94%; below osteotomy line 7.5 cm in sagittal section is 59.51 ± 12.94% and in coronal section is 89.79 ± 11.13%; femoral shaft isthmus in sagittal section is 56.41 ± 13.80% and in coronal section is 84.95 ± 15.17%. Conclusion The accuracy and safety of this novel robotic arm are suitable for preparing both the acetabular and femoral sides, providing evidence for clinical trial. |
| first_indexed | 2024-03-11T12:39:40Z |
| format | Article |
| id | doaj.art-6fc2335960034ed1bad74e3a81664f75 |
| institution | Directory Open Access Journal |
| issn | 1749-799X |
| language | English |
| last_indexed | 2024-03-11T12:39:40Z |
| publishDate | 2023-11-01 |
| publisher | BMC |
| record_format | Article |
| series | Journal of Orthopaedic Surgery and Research |
| spelling | doaj.art-6fc2335960034ed1bad74e3a81664f752023-11-05T12:24:47ZengBMCJournal of Orthopaedic Surgery and Research1749-799X2023-11-011811710.1186/s13018-023-04263-wAccuracy and safety of a new robotic arm for both femoral and acetabular side in total hip arthroplasty: a cadaveric studyXinzhe Lu0Zian Zhang1Wenzhe Wang2Hao Xu3Haining Zhang4Department of Joint Surgery, The Affiliated Hospital of Qingdao UniversityDepartment of Joint Surgery, The Affiliated Hospital of Qingdao UniversityDepartment of Joint Surgery, The Affiliated Hospital of Qingdao UniversityDepartment of Joint Surgery, The Affiliated Hospital of Qingdao UniversityDepartment of Joint Surgery, The Affiliated Hospital of Qingdao UniversityAbstract Background To investigate the accuracy and safety of a newly constructed robotic arm which can cover the whole process of THA, we performed a series of robot-assisted total hip replacement on the cadaver. Methods Fifteen frozen cadaveric specimens (30 hips) were used for this study. In this investigation, united hip system and Longwell robotic-assisted system were used. The entire lower limb was CT scanned prior to surgery. The 3D model was produced based on CT data; the site of the prosthesis, including acetabular anteversion, inclination angle, and the position of femoral prosthesis, was planned. With the assistance of a robotic arm, the surgeon changed the parameters based on the preoperative plan and the actual condition during surgery, and completed the whole procedure. Following surgery, we measured the acetabular anteversion angle, acetabular inclination angle, femur anteversion angle, combined anteversion angle, stem angulation, and canal fill ratio. Results The parameters proved that the acetabular anteversion angle was 16.85 ± 3.00°, the acetabular inclination angle was 40.38 ± 5.37°, femur anteversion angle was 15.90 ± 9.01°, combined anteversion angle was 32.75 ± 9.03°, stem angulation was 1.84 ± 0.99°, and leg length discrepancy was 2.47 ± 1.43 mm. The canal fill ratio (CFR) of femoral prosthesis of osteotomy line in sagittal section is 99.72 ± 1.54% and in coronal section is 62.94 ± 8.91%; below osteotomy line 2.5 cm in sagittal section is 100.00% and in coronal section is 81.48 ± 12.94%; below osteotomy line 7.5 cm in sagittal section is 59.51 ± 12.94% and in coronal section is 89.79 ± 11.13%; femoral shaft isthmus in sagittal section is 56.41 ± 13.80% and in coronal section is 84.95 ± 15.17%. Conclusion The accuracy and safety of this novel robotic arm are suitable for preparing both the acetabular and femoral sides, providing evidence for clinical trial.https://doi.org/10.1186/s13018-023-04263-wTotal hip arthroplasty (THA)RobotCadaveric study |
| spellingShingle | Xinzhe Lu Zian Zhang Wenzhe Wang Hao Xu Haining Zhang Accuracy and safety of a new robotic arm for both femoral and acetabular side in total hip arthroplasty: a cadaveric study Journal of Orthopaedic Surgery and Research Total hip arthroplasty (THA) Robot Cadaveric study |
| title | Accuracy and safety of a new robotic arm for both femoral and acetabular side in total hip arthroplasty: a cadaveric study |
| title_full | Accuracy and safety of a new robotic arm for both femoral and acetabular side in total hip arthroplasty: a cadaveric study |
| title_fullStr | Accuracy and safety of a new robotic arm for both femoral and acetabular side in total hip arthroplasty: a cadaveric study |
| title_full_unstemmed | Accuracy and safety of a new robotic arm for both femoral and acetabular side in total hip arthroplasty: a cadaveric study |
| title_short | Accuracy and safety of a new robotic arm for both femoral and acetabular side in total hip arthroplasty: a cadaveric study |
| title_sort | accuracy and safety of a new robotic arm for both femoral and acetabular side in total hip arthroplasty a cadaveric study |
| topic | Total hip arthroplasty (THA) Robot Cadaveric study |
| url | https://doi.org/10.1186/s13018-023-04263-w |
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