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Patient Satisfaction After Robotic-Assisted Versus Conventional Total Knee Arthroplasty
Sponsor: Ain Shams University
Summary
Total knee arthroplasty (TKA) remains the definitive treatment for advanced knee osteoarthritis and continues to be performed with increasing frequency worldwide. However, patient dissatisfaction remains reported in up to one-fifth of cases, despite technically successful procedures and acceptable radiographic results. This discrepancy has shifted attention toward early functional recovery and patient-reported outcomes as more meaningful indicators of success. In response, technological innovations such as robotic-assisted total knee arthroplasty have been introduced to enhance surgical precision and reduce alignment outliers. This study aims to determine whether these technical advantages translate into improved early clinical outcomes by comparing patient satisfaction, functional results, radiological accuracy, and perioperative parameters between robotic-assisted and conventional total knee arthroplasty over one year.
Official title: Patient Satisfaction After Robotic-Assisted Versus Conventional Total Knee Arthroplasty: A Randomized Controlled Trial
Key Details
Gender
All
Age Range
50 Years - Any
Study Type
INTERVENTIONAL
Enrollment
70
Start Date
2026-10-30
Completion Date
2028-04-30
Last Updated
2026-11-03
Healthy Volunteers
No
Interventions
Mako4 Robotic Arm Assisted Total Knee Arthroplasty
All patients will be managed by the same surgical team , performed with the patient in supine position. Prophylactic intravenous antibiotics will be administered 30 minutes before skin incision , using weight-adjusted dosing. An above-knee pneumatic tourniquet will be applied in all cases, and a standard medial parapatellar approach will be used. Patients allocated to the robotic-assisted group will undergo total knee arthroplasty using the Mako Robotic-Arm Assisted System (Stryker, Kalamazoo, Michigan, USA) with the Triathlon Total Knee System. Robotic assistance will be used for preoperative/intraoperative surgical planning, bone preparation, component positioning, and intraoperative assessment of soft-tissue balance. In both groups, all components will be implanted using cemented fixation. Stem extensions may be used selectively on a case-by-case basis.The patella will be managed with conventional patelloplasty in all patients. Closed-suction drains will be used routinely.
conventional total knee arthroplasty using Triathlon Total Knee System
All patients will be managed by the same surgical team , performed with the patient in supine position. Prophylactic intravenous antibiotics will be administered 30 minutes before skin incision , using weight-adjusted dosing. An above-knee pneumatic tourniquet will be applied in all cases, and a standard medial parapatellar approach will be used. Patients allocated to the conventional (control) group will undergo total knee arthroplasty using the Triathlon Total Knee System (Stryker, Kalamazoo, Michigan, USA) with standard manual instrumentation and conventional cutting jigs, without robotic assistance. Component sizing, bone preparation, positioning, and soft-tissue balancing will be performed using standard conventional techniques. All components will be implanted using cemented fixation. Stem extensions may be used selectively on a case-by-case basis. The patella will be managed with conventional patelloplasty in all patients. Closed-suction drains will be used routinely.
Locations (1)
Ainshams university
Cairo, Egypt