Robotic-assisted total hip replacement using direct anterior approach

Area of Science:

• Orthopedic Surgery
• Robotics in Medicine
• Arthroplasty

Background:

• Direct anterior approach (DAA) is a muscle-sparing hip arthroplasty technique.
• Robotic assistance is increasingly used to enhance surgical accuracy in total hip replacement (THR).
• Combining DAA with robotic technology merges minimally invasive principles with advanced precision.

Purpose of the Study:

• To evaluate the efficacy and outcomes of robotic arm-assisted THR via DAA.
• To compare robotic-assisted DAA THR with conventional techniques.
• To assess surgical accuracy, patient outcomes, safety, and economic factors.

Main Methods:

• Review of current evidence on robotic arm-assisted THR using the DAA.
• Comparison of radiographic outcomes, functional results, and complication rates.
• Analysis of learning curve, operative time, and economic considerations.

Main Results:

• Robotic-assisted THR via DAA demonstrates improved acetabular orientation and implant placement within safe zones.
• Consistent improvements reported in postoperative limb length and femoral offset.
• Functional and patient-reported outcomes are comparable to conventional THR; safety profiles are similar.
• No consistent reduction in complication rates, though accuracy may reduce outlier failures.

Conclusions:

• Robotic-assisted THR via DAA offers enhanced surgical precision and potentially improved early recovery.
• Current evidence does not show clear superiority in patient-reported or long-term outcomes.
• Further prospective studies are needed to define the role and long-term impact of this technique.