A comparison of gait one year post operation in an RCT of robotic UKA versus traditional Oxford UKA

Publication date: Available online 6 March 2018
Source:Gait & Posture
Author(s): Arman Motesharei, Philip Rowe, Mark Blyth, Bryn Jones, Angus Maclean
Robot-assisted unicompartmental knee surgery has been shown to improve the accuracy of implant alignment. However, little work has been done to ascertain if this improvement results in a measureable improvement in knee function post operatively and a more normal gait.The kinematics of 70 knees were assessed using motion analysis in an RCT (31 receiving robotic-assisted surgery, and 39 receiving traditional manual surgery) and compared to healthy knees. Significant kinematic differences were seen between the two surgical groups from foot-strike to mid-stance. The robotic-assisted group achieved a higher knee excursion (18.0°, SD 4.9°) compared to the manual group (15.7°, SD 4.1°). There was no significant difference between the healthy group and the roboticassisted group, however there was a significant difference between the healthy group and the manual group (p < 0.001). Hence robotically-assisted knee replacement with Mako Restoris Implants appears to lead not only to better implant alignment but also kinematic benefits to the user during gait.



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