Related Experiment Video
Updated: Jul 17, 2025
06:44
Development of a Novel Task-oriented Rehabilitation Program using a Bimanual Exoskeleton Robotic Hand
Published on: May 20, 2020
7.1K
Robotic Arm-assisted versus Manual (ROAM) total knee arthroplasty: a randomized controlled trial
Nick D Clement1, Steven Galloway2, Y Jenny Baron2
1Edinburgh Orthopaedics, Royal Infirmary of Edinburgh, Edinburgh, UK.
The Bone & Joint Journal
|August 31, 2023
Summary
Robotic total knee arthroplasty (rTKA) showed no significant difference in knee function compared to manual TKA (mTKA) at six months. However, rTKA patients were more likely to experience clinically important improvements in knee pain.
Area of Science:
- Orthopedic Surgery
- Robotics in Medicine
- Biomechanical Engineering
Background:
- Total knee arthroplasty (TKA) is a common procedure for end-stage knee osteoarthritis.
- Robotic assistance in TKA aims to improve precision and potentially patient outcomes.
- Comparing robotic-assisted TKA (rTKA) with traditional manual TKA (mTKA) is crucial for understanding its clinical value.
Purpose of the Study:
- To evaluate if robotic total knee arthroplasty (rTKA) offers superior early knee-specific functional outcomes compared to manual TKA (mTKA).
- To assess secondary outcomes including patient satisfaction, health-related quality of life (HRQoL), and expectation fulfillment after rTKA versus mTKA.
Main Methods:
- A randomized controlled trial comparing rTKA and mTKA.
- 100 patients were randomized (50 per group), with 46 rTKA and 41 mTKA patients assessed at six months post-surgery.
- Primary outcome was functional improvement measured by the Western Ontario and McMaster Universities osteoarthritis index (WOMAC) at six months.
Main Results:
- No significant difference in WOMAC function scores between rTKA and mTKA at six months (p=0.425).
- rTKA group showed greater improvement in WOMAC pain scores at two months (p=0.037) and a higher likelihood of achieving minimal important change in pain at two and six months (p=0.047, p=0.036).
- No significant differences were found in patient satisfaction (p=0.096), HRQoL (EQ-5D), or expectation fulfillment (p≥0.054).
Conclusions:
- No statistically significant or clinically meaningful differences in knee function were observed between rTKA and mTKA at six months.
- rTKA demonstrated an increased likelihood of achieving clinically important pain reduction at both two and six months post-surgery.
- Despite pain improvements, rTKA did not show advantages over mTKA in overall knee function, satisfaction, quality of life, or expectation fulfillment in the early postoperative period.
