Accuracy of Bone Resection in MAKO Total Knee Robotic-Assisted Surgery

Sires, James D.; Craik, Johnathan D.; Wilson, Christopher J.

doi:10.1055/s-0039-1700570

Cited by 97 publications

(95 citation statements)

References 10 publications

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“…The accuracy of the proposed method is promising with ≤ 1 mm deviation to a 3D scan. These error Table 3 Radiographic measurements values are within clinical acceptance and get close to the threshold value (1 mm) found in robotic-assisted TKA studies [31]. The ICC shows a good and very good correlation for the radiographic measurement between all examiners.…”

Section: Discussionsupporting

confidence: 81%

3D-surface scan based validated new measurement technique of femoral joint line reconstruction in total knee arthroplasty

et al. 2021

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Purpose This study aimed to validate a new joint line measurement technique in total knee arthroplasty for separated assessment of the medial and lateral femoral joint line alteration with 3D-surface scan technology. Separate assessment of the medial and lateral joint line alteration may improve TKA alignment assessment regarding to joint line restoration in kinematic alignment and use of robotic-assisted TKA surgery. Methods The medial and lateral joint line difference after TKA implantation on an artificial bone model was analyzed and compared with a 3D-scan and full femoral radiographs pre- and postoperatively. Radiographic analysis included the perpendicular distance between the most distal point of the medial and lateral condyle and the reproduced preoperative lateral distal femoral angle (LDFA). For evaluation of validity and reliability, radiographs were captured initially with true anteroposterior view and subsequently with combined flexion and rotation malpositioning. Reliability of the introduced measurement technique in between three observers was tested with intraclass correlation coefficient (ICC). Results Radiographic measurement showed a mean difference of 0.9 mm on the medial side and 0.6 mm on the lateral side when compared to the 3D-surface scan measurement. The reliability of measurement accuracy was ≤ 1 mm in x-rays with < 10° flexion error regardless to malrotation in these images. The ICC test showed very good reliability for the medial joint line evaluation and good reliability for lateral joint line evaluation (ICC 0.92, ICC 0.86 respectively). Conclusion The new introduced joint line measurement method showed a sufficient reliability, accuracy and precision. It provides separated information about medial and lateral joint line alteration in TKA surgery in absolute values. Level of evidence V - Experimental Study

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Section: Discussionsupporting

confidence: 81%

3D-surface scan based validated new measurement technique of femoral joint line reconstruction in total knee arthroplasty

et al. 2021

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“…Sires et al. showed that MAKO robotic‐assisted TKA system could improve bone resection accuracy 30 . Recently, Shaw et al 31 .…”

Section: Discussionmentioning

confidence: 99%

A new robotically assisted system for total knee arthroplasty: A sheep model study

Chen

Zhang

et al. 2021

Robotics Computer Surgery

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Background We investigated the accuracy and safety of a new HURWA robotic‐assisted total knee arthroplasty (TKA) system in a sheep model. Methods Ten male small‐tailed Han sheep were used in this study. Sheep were imaged by computed tomography scan before and after bone resection and the cutting errors between actual bone preparation and preoperative planning of the femur and tibia in three dimensions were measured. Results The overall accuracies after surgery compared with that from preoperative surgical planning of the left and right femurs were 1.93 ± 1.02° and 1.93 ± 1.23°, respectively. Additionally, similarly high overall accuracies for the left and right tibia of 1.26 ± 1.04 and 1.68 ± 0.92°, respectively, were obtained. The gap distances of the distal cut, anterior chamfer, anterior cut, posterior chamfer and posterior cut on the medial side were 0.47 ± 0.35 mm, 0.41 ± 0.37 mm, 0.12 ± 0.26 mm, 0.41 ± 0.44 mm and 0.12 ± 0.23 mm, respectively. No intraoperative complications, such as intraoperative fracture, massive bleeding or death, occurred. Conclusion This new HURWA robotic‐assisted TKA system is an accurate and safe tool for TKA surgery based on the sheep model.

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“…Sires et al. showed that the MAKO TKA robotic‐assisted system can enhance bone resection precision and component positioning accuracy 36 . In a cadaveric study, Seidenstein et al.…”

Section: Discussionmentioning

confidence: 99%

Better precision of a new robotically assisted system for total knee arthroplasty compared to conventional techniques: A sawbone model study

Chen

Zhang

et al. 2021

Robotics Computer Surgery

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Background The purpose of this study was to compare the accuracy of this new HURWA robotic‐assisted total knee arthroplasty (TKA) technique to the accuracy of the conventional technique in a sawbone model. Methods The HURWA robotic‐assisted TKA system was applied in the robotic group. After bone resection, all of these sawbones were scanned by the use of a structured light scanning system. Measurements of bone resections, femoral coronal and sagittal measurements, and tibial coronal and sagittal measurements were recorded. Results Compared to the conventional technique, the HURWA robotic‐assisted system significantly improved the accuracy of the bone resection levels and angles. In the robotic group, the accuracy of all of the bone resection levels was below 0.6 mm (with standard deviation [SD] below 0.6 mm), and all of the bone resection angles were below 0.6° (with SD below 0.4°). Conclusion Our data suggest that this novel HURWA robotic‐assisted system can significantly improve the accuracy of bone resection levels and angles.

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Accuracy of Bone Resection in MAKO Total Knee Robotic-Assisted Surgery

Cited by 97 publications

References 10 publications

3D-surface scan based validated new measurement technique of femoral joint line reconstruction in total knee arthroplasty

3D-surface scan based validated new measurement technique of femoral joint line reconstruction in total knee arthroplasty

A new robotically assisted system for total knee arthroplasty: A sheep model study

Better precision of a new robotically assisted system for total knee arthroplasty compared to conventional techniques: A sawbone model study

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