TY - JOUR
T1 - Accuracy assessment of a novel image-free handheld robot for Total Knee Arthroplasty in a cadaveric study
AU - Casper, Michael
AU - Mitra, Riddhit
AU - Khare, Rahul
AU - Jaramaz, Branislav
AU - Hamlin, Brian
AU - McGinley, Brian
AU - Mayman, David
AU - Headrick, Jeff
AU - Urish, Kenneth
AU - Gittins, Mark
AU - Incavo, Stephen
AU - Neginhal, Vivek
N1 - Publisher Copyright:
© 2018, © 2018 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.
PY - 2018/1/1
Y1 - 2018/1/1
N2 - Surgical navigation has been shown to improve the accuracy of bone preparation and limb alignment in total knee arthroplasty (TKA). Previous work has shown the effectiveness of various types of navigation systems. Here, for the first time, we assessed the accuracy of a novel imageless semiautonomous handheld robotic sculpting system in performing bone resection and preparation in TKA using cadaveric specimens. In this study, we compared the planned and final implant placement in 18 cadaveric specimens undergoing TKA using the new tool. Eight surgeons carried out the procedures using three types of implant designs. A quantitative analysis was performed to determine the translational, angular, and rotational differences between the planned and achieved positions of the implants. The mean femoral flexion, varus/valgus, and rotational error was −2.0°, −0.1°, and −0.5°, respectively. The mean tibial posterior slope, and varus/valgus error was −0.2°, and −0.2°, respectively. We obtained higher flexion errors for the femoral implant when using cut-guides as compared to using a bur for cutting the bones. The image-free robotic sculpting tool achieved accurate implementation of the surgical plan with small errors in implant placement. Future studies will focus on determining how well the accurate implant placement translates into a clinical and functional benefit for the patient.
AB - Surgical navigation has been shown to improve the accuracy of bone preparation and limb alignment in total knee arthroplasty (TKA). Previous work has shown the effectiveness of various types of navigation systems. Here, for the first time, we assessed the accuracy of a novel imageless semiautonomous handheld robotic sculpting system in performing bone resection and preparation in TKA using cadaveric specimens. In this study, we compared the planned and final implant placement in 18 cadaveric specimens undergoing TKA using the new tool. Eight surgeons carried out the procedures using three types of implant designs. A quantitative analysis was performed to determine the translational, angular, and rotational differences between the planned and achieved positions of the implants. The mean femoral flexion, varus/valgus, and rotational error was −2.0°, −0.1°, and −0.5°, respectively. The mean tibial posterior slope, and varus/valgus error was −0.2°, and −0.2°, respectively. We obtained higher flexion errors for the femoral implant when using cut-guides as compared to using a bur for cutting the bones. The image-free robotic sculpting tool achieved accurate implementation of the surgical plan with small errors in implant placement. Future studies will focus on determining how well the accurate implant placement translates into a clinical and functional benefit for the patient.
KW - accuracy
KW - cadaver study
KW - navigation
KW - robot-assisted
KW - total knee arthroplasty
UR - http://www.scopus.com/inward/record.url?scp=85054633491&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85054633491&partnerID=8YFLogxK
U2 - 10.1080/24699322.2018.1519038
DO - 10.1080/24699322.2018.1519038
M3 - Article
C2 - 30307763
AN - SCOPUS:85054633491
VL - 23
SP - 14
EP - 20
JO - Computer Assisted Surgery
JF - Computer Assisted Surgery
SN - 2469-9322
IS - 1
ER -