51 - Immediate Post-operative Outcomes in Patients Undergoing Robotic-arm Assisted Total Knee Arthroplasty (RATKA) with Haptic Guidance Compared to Manual and Computer Navigated TKA
Introduction: Robotic assisted technology has gained popularity in orthopedics over the last decade. This study explores the impact of robotic-arm assisted technology with haptic guidance on early post-operative clinical outcomes in patients undergoing total knee arthroplasty (TKA).
Methods: A focused review of recent publications that collected data on immediate post-operative outcomes in patients who underwent RATKA with haptic guidance was done. Five prospective cohort studies were identified that looked at immediate post-operative pain, opioid use, length of hospital stay, patient satisfaction at one year and Forgotten Joint Score (FJS) at 2 years post-op.
Results: In the immediate post-operative period, statistically significantly less pain was reported in patients who underwent RATKA compared to manual TKA and computer-navigated TKA. Bhimani et al. showed statistically significantly less pain in patients who received RATKA compared to manual TKA at rest and with activity at 2 weeks and 6 weeks post-op. All studies reported statistically significantly reduced total opioid consumption (MMEq/day) by patients who underwent RATKA over manual and computer navigated TKA and three studies (2 compared to manual TKA and 1 compared to computer-navigated TKA) reported a statistically significantly shorter LOS for RATKA patients. At one year post-op, more RATKA patients were satisfied compared to manual TKA as reported by Smith, et al.and at 2 years, a median FJS of 75 was reported in RATKA compared to 61.5 in manual TKA patients.
Conclusion: These cohortstudies demonstrated that patients who underwent RATKA with haptic guidance showed positive outcomes in the early post-operative period compared to patients who received manual or computer-navigated TKA. RATKA patients reported improved patient satisfaction at 1 year post-op and at 2yearspost-op,RATKA patients reported FJS that is comparable to normative value for the US population.