Characteristics of Resection Parameters in Robot‐Assisted Total Knee Arthroplasty With the Ligament Balancing Workflow
ABSTRACT Objective Robotic‐assisted total knee arthroplasty (TKA) is a novel orthopedic technique. The workflow of robotic‐assisted TKA is quite different from that of traditional manual TKA and may result incompletely different resection parameters. Understanding these parameters may help surgeons...
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| Format: | Article |
| Language: | English |
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Wiley
2025-03-01
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| Series: | Orthopaedic Surgery |
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| Online Access: | https://doi.org/10.1111/os.14336 |
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| author | Qing‐Da Wei Hao‐Ming An Wang Gu Wei Sun Rui Li Wei Chai |
| author_facet | Qing‐Da Wei Hao‐Ming An Wang Gu Wei Sun Rui Li Wei Chai |
| author_sort | Qing‐Da Wei |
| collection | DOAJ |
| description | ABSTRACT Objective Robotic‐assisted total knee arthroplasty (TKA) is a novel orthopedic technique. The workflow of robotic‐assisted TKA is quite different from that of traditional manual TKA and may result incompletely different resection parameters. Understanding these parameters may help surgeons better perform robotic‐assisted TKA. This study aims to analyze the specific resection parameters of robotic‐assisted TKA. Methods We retrospectively reviewed 85 MAKO‐assisted TKA surgeries performed by three surgeons at our institution between May 2021 and November 2023. All patients had unilateral primary knee arthritis, and a Triathlon PS (Stryker) knee prosthesis was used. Intraoperative resection plan, radiological outcomes, and clinical outcomes were collected among them. The angle between the transepicondylar axis (TEA) and the femoral prosthesis axis was defined as rTEA, the angle between the posterior condylar axis (PCA) and the femoral prosthesis axis was defined as rPCA. The t‐test and the Chi‐square test (or Fisher's exact probability test) were used to determine differences in categorical variables. Results rTEA averaged 2.7° (range, 0°–6.7°), and rPCA averaged 4.9° (range, 0.2°–9.6°). The mean resection of the medial distal femur was 7.7 mm (range, 3.0–12.5), that of the lateral tibial plateau was 6.4 mm (range, 1.5–13.0), and that of the medial posterior condyle of the femur was 10.6 mm (range, 6.5–17.5), whereas that of the lateral posterior condyle of the femur was 6.7 mm (range, 2.0–13.0). Conclusion Robotic‐assisted TKA using the ligament balancing workflow generally resulted in greater external rotation than reported reference values for conventional manual TKA within the existing literature, with reference to both the TEA and PCA. In addition, tibial resection was generally less, and the joint line was generally shifted upwards. |
| format | Article |
| id | doaj-art-af5c11bb93a44256bb6abb39beb865db |
| institution | DOAJ |
| issn | 1757-7853 1757-7861 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Wiley |
| record_format | Article |
| series | Orthopaedic Surgery |
| spelling | doaj-art-af5c11bb93a44256bb6abb39beb865db2025-08-20T02:54:33ZengWileyOrthopaedic Surgery1757-78531757-78612025-03-0117384184710.1111/os.14336Characteristics of Resection Parameters in Robot‐Assisted Total Knee Arthroplasty With the Ligament Balancing WorkflowQing‐Da Wei0Hao‐Ming An1Wang Gu2Wei Sun3Rui Li4Wei Chai5Senior Department of Orthopedics The Fourth Medical Center of PLA General Hospital Beijing ChinaSenior Department of Orthopedics The Fourth Medical Center of PLA General Hospital Beijing ChinaSenior Department of Orthopedics The Fourth Medical Center of PLA General Hospital Beijing ChinaSenior Department of Orthopedics The Fourth Medical Center of PLA General Hospital Beijing ChinaSenior Department of Orthopedics The Fourth Medical Center of PLA General Hospital Beijing ChinaSenior Department of Orthopedics The Fourth Medical Center of PLA General Hospital Beijing ChinaABSTRACT Objective Robotic‐assisted total knee arthroplasty (TKA) is a novel orthopedic technique. The workflow of robotic‐assisted TKA is quite different from that of traditional manual TKA and may result incompletely different resection parameters. Understanding these parameters may help surgeons better perform robotic‐assisted TKA. This study aims to analyze the specific resection parameters of robotic‐assisted TKA. Methods We retrospectively reviewed 85 MAKO‐assisted TKA surgeries performed by three surgeons at our institution between May 2021 and November 2023. All patients had unilateral primary knee arthritis, and a Triathlon PS (Stryker) knee prosthesis was used. Intraoperative resection plan, radiological outcomes, and clinical outcomes were collected among them. The angle between the transepicondylar axis (TEA) and the femoral prosthesis axis was defined as rTEA, the angle between the posterior condylar axis (PCA) and the femoral prosthesis axis was defined as rPCA. The t‐test and the Chi‐square test (or Fisher's exact probability test) were used to determine differences in categorical variables. Results rTEA averaged 2.7° (range, 0°–6.7°), and rPCA averaged 4.9° (range, 0.2°–9.6°). The mean resection of the medial distal femur was 7.7 mm (range, 3.0–12.5), that of the lateral tibial plateau was 6.4 mm (range, 1.5–13.0), and that of the medial posterior condyle of the femur was 10.6 mm (range, 6.5–17.5), whereas that of the lateral posterior condyle of the femur was 6.7 mm (range, 2.0–13.0). Conclusion Robotic‐assisted TKA using the ligament balancing workflow generally resulted in greater external rotation than reported reference values for conventional manual TKA within the existing literature, with reference to both the TEA and PCA. In addition, tibial resection was generally less, and the joint line was generally shifted upwards.https://doi.org/10.1111/os.14336femoral prosthesis rotationrobotic‐assistedtotal knee arthroplasty |
| spellingShingle | Qing‐Da Wei Hao‐Ming An Wang Gu Wei Sun Rui Li Wei Chai Characteristics of Resection Parameters in Robot‐Assisted Total Knee Arthroplasty With the Ligament Balancing Workflow Orthopaedic Surgery femoral prosthesis rotation robotic‐assisted total knee arthroplasty |
| title | Characteristics of Resection Parameters in Robot‐Assisted Total Knee Arthroplasty With the Ligament Balancing Workflow |
| title_full | Characteristics of Resection Parameters in Robot‐Assisted Total Knee Arthroplasty With the Ligament Balancing Workflow |
| title_fullStr | Characteristics of Resection Parameters in Robot‐Assisted Total Knee Arthroplasty With the Ligament Balancing Workflow |
| title_full_unstemmed | Characteristics of Resection Parameters in Robot‐Assisted Total Knee Arthroplasty With the Ligament Balancing Workflow |
| title_short | Characteristics of Resection Parameters in Robot‐Assisted Total Knee Arthroplasty With the Ligament Balancing Workflow |
| title_sort | characteristics of resection parameters in robot assisted total knee arthroplasty with the ligament balancing workflow |
| topic | femoral prosthesis rotation robotic‐assisted total knee arthroplasty |
| url | https://doi.org/10.1111/os.14336 |
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