Handheld imageless robotic total knee arthroplasty improves accuracy and early clinical outcomes when compared with navigation
Abstract Background This study compared imageless robotic-assisted total knee arthroplasty (RATKA) with accelerometer-based navigation (ABN) systems in terms of surgical accuracy and early clinical outcomes. Methods A retrospective analysis was conducted on 153 patients (178 knees) who had undergone...
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BMC
2025-04-01
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| Series: | Arthroplasty |
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| Online Access: | https://doi.org/10.1186/s42836-025-00303-4 |
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| author | Joshua Yeuk-Shun Tran Abbie Yan-Tung Tang Cham-Kit Wong Gloria Yan-Ting Lam Tsz-Lung Choi Rex Wang-Fung Mak Jonathan Patrick Ng Kevin Ki-Wai Ho Michael Tim-Yun Ong Patrick Shu-Hang Yung |
| author_facet | Joshua Yeuk-Shun Tran Abbie Yan-Tung Tang Cham-Kit Wong Gloria Yan-Ting Lam Tsz-Lung Choi Rex Wang-Fung Mak Jonathan Patrick Ng Kevin Ki-Wai Ho Michael Tim-Yun Ong Patrick Shu-Hang Yung |
| author_sort | Joshua Yeuk-Shun Tran |
| collection | DOAJ |
| description | Abstract Background This study compared imageless robotic-assisted total knee arthroplasty (RATKA) with accelerometer-based navigation (ABN) systems in terms of surgical accuracy and early clinical outcomes. Methods A retrospective analysis was conducted on 153 patients (178 knees) who had undergone primary TKA from 2017 to 2023. Surgical accuracy and functional outcomes were assessed up to 12 months post-operation using the Chi-square test, Student’s t-test, and ANCOVA. Subgroup analyses based on patient demographics were also conducted. Results Among 153 patients, 101 underwent RATKA, and 52 received ABN. RATKA demonstrated superior alignment accuracy with a significantly lower deviation from the planned alignment (P < 0.05). Additionally, RATKA led to significantly better postoperative functional scores at 6 weeks (P = 0.001) and 3 months (P = 0.001), even after adjusting for preoperative functional differences. Conclusions RATKA offers enhanced precision and improves early recovery compared to ABN, supporting its potential as a preferred technology for TKA. Its ability to optimize kinematic alignment may contribute to superior patient outcomes. Compared to ABN, RATKA provides a unique advantage by achieving greater accuracy in planned alignment, which may translate into improved functional recovery. Further research with larger cohorts is recommended to confirm these findings. |
| format | Article |
| id | doaj-art-3413cf41dd51478ea69e688d9aeb44f7 |
| institution | DOAJ |
| issn | 2524-7948 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | BMC |
| record_format | Article |
| series | Arthroplasty |
| spelling | doaj-art-3413cf41dd51478ea69e688d9aeb44f72025-08-20T03:08:02ZengBMCArthroplasty2524-79482025-04-01711710.1186/s42836-025-00303-4Handheld imageless robotic total knee arthroplasty improves accuracy and early clinical outcomes when compared with navigationJoshua Yeuk-Shun Tran0Abbie Yan-Tung Tang1Cham-Kit Wong2Gloria Yan-Ting Lam3Tsz-Lung Choi4Rex Wang-Fung Mak5Jonathan Patrick Ng6Kevin Ki-Wai Ho7Michael Tim-Yun Ong8Patrick Shu-Hang Yung9Department of Orthopaedics and Traumatology, Chinese University of Hong KongDepartment of Orthopaedics and Traumatology, Chinese University of Hong KongDepartment of Orthopaedics & Traumatology, Alice Ho Miu Ling Nethersole HospitalDepartment of Orthopaedics & Traumatology, Alice Ho Miu Ling Nethersole HospitalDepartment of Orthopaedics & Traumatology, Alice Ho Miu Ling Nethersole HospitalDepartment of Orthopaedics and Traumatology, Prince of Wales HospitalDepartment of Orthopaedics and Traumatology, Prince of Wales HospitalDepartment of Orthopaedics and Traumatology, Prince of Wales HospitalDepartment of Orthopaedics and Traumatology, Chinese University of Hong KongDepartment of Orthopaedics and Traumatology, Chinese University of Hong KongAbstract Background This study compared imageless robotic-assisted total knee arthroplasty (RATKA) with accelerometer-based navigation (ABN) systems in terms of surgical accuracy and early clinical outcomes. Methods A retrospective analysis was conducted on 153 patients (178 knees) who had undergone primary TKA from 2017 to 2023. Surgical accuracy and functional outcomes were assessed up to 12 months post-operation using the Chi-square test, Student’s t-test, and ANCOVA. Subgroup analyses based on patient demographics were also conducted. Results Among 153 patients, 101 underwent RATKA, and 52 received ABN. RATKA demonstrated superior alignment accuracy with a significantly lower deviation from the planned alignment (P < 0.05). Additionally, RATKA led to significantly better postoperative functional scores at 6 weeks (P = 0.001) and 3 months (P = 0.001), even after adjusting for preoperative functional differences. Conclusions RATKA offers enhanced precision and improves early recovery compared to ABN, supporting its potential as a preferred technology for TKA. Its ability to optimize kinematic alignment may contribute to superior patient outcomes. Compared to ABN, RATKA provides a unique advantage by achieving greater accuracy in planned alignment, which may translate into improved functional recovery. Further research with larger cohorts is recommended to confirm these findings.https://doi.org/10.1186/s42836-025-00303-4Handheld robotic surgeryTotal knee arthroplastyImageless navigationSurgical accuracyEarly clinical outcomesRobotic-assisted surgery |
| spellingShingle | Joshua Yeuk-Shun Tran Abbie Yan-Tung Tang Cham-Kit Wong Gloria Yan-Ting Lam Tsz-Lung Choi Rex Wang-Fung Mak Jonathan Patrick Ng Kevin Ki-Wai Ho Michael Tim-Yun Ong Patrick Shu-Hang Yung Handheld imageless robotic total knee arthroplasty improves accuracy and early clinical outcomes when compared with navigation Arthroplasty Handheld robotic surgery Total knee arthroplasty Imageless navigation Surgical accuracy Early clinical outcomes Robotic-assisted surgery |
| title | Handheld imageless robotic total knee arthroplasty improves accuracy and early clinical outcomes when compared with navigation |
| title_full | Handheld imageless robotic total knee arthroplasty improves accuracy and early clinical outcomes when compared with navigation |
| title_fullStr | Handheld imageless robotic total knee arthroplasty improves accuracy and early clinical outcomes when compared with navigation |
| title_full_unstemmed | Handheld imageless robotic total knee arthroplasty improves accuracy and early clinical outcomes when compared with navigation |
| title_short | Handheld imageless robotic total knee arthroplasty improves accuracy and early clinical outcomes when compared with navigation |
| title_sort | handheld imageless robotic total knee arthroplasty improves accuracy and early clinical outcomes when compared with navigation |
| topic | Handheld robotic surgery Total knee arthroplasty Imageless navigation Surgical accuracy Early clinical outcomes Robotic-assisted surgery |
| url | https://doi.org/10.1186/s42836-025-00303-4 |
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