Convened under the auspicious of esteemed endorsers - ISTA

Thursday, October 7, 2010, 15:10-15:50Session B7: Robotic Knee SurgeryFour Year Outcomes of Robotically Guided UKAMartin Roche - Holy Cross Hospital - Ft Lauderdale, USASharon Horowitz - MAKO Surgical Corp. - Fort Lauderdale, USA*Michael Conditt - MAKO Surgical Corp. - Boerne, USA*Email: mconditt@makosurgical.comIntroduction:Clinical outcomes of UKA procedures are sensitive to malalignment of the components, andthus show significant variability in the literature. A new robotic procedure addresses isolatedmedial compartment osteoarthritis with the classic indications of UKA. Using precisionplanning through patient specific 3D modeling and reconstruction, a robotic arm gives thesurgeon control of resurfacing the knee joint, allowing for consistent precision according to thepreviously chosen plan. Through the precise preparation of bone surfaces and inter-componentalignment, this procedure is designed to significantly increase accuracy and decrease malalignment,thus increasing post-operative physical and function outcomes. This paper evaluatesfour year clinical outcomes of this novel surgical procedure.Methods:The first seventy-three (42 male, 31 female) patients (average age: 71 ±10yrs) to receive arobotically assisted UKA enrolled in an IRB approved outcomes registry. Eleven patients werefour years post operative and sixty-two patients were three years post operative at the time ofthe study. The average follow ups were 45 months and 35 months, respectively (range: 30 to 47months). The tibial component for all patients was an all-poly inlay design.Results:At one, two, three and four year follow up, all patients showed significant improvements,compared to pre-operative values, in range of motion (p