[Computer-assisted robotics in hip endoprosthesis implantation]

Area of Science:

• Orthopedic Surgery
• Biomaterials Engineering
• Robotics in Medicine

Background:

• Primary stability is essential for the long-term success of cementless total hip replacement (THR).
• Osteointegration, direct bone-implant contact without fibrous tissue, is the primary goal.
• Implant design, surface structure, material, and surgical technique all influence fixation.

Purpose of the Study:

• To evaluate the effectiveness of robot-assisted surgery for achieving optimal primary fixation in cementless THR.
• To assess the impact of precise femoral cavity preparation on implant stability and durability.
• To report on the clinical outcomes of robot-assisted cementless THR procedures.

Main Methods:

• Robot-assisted implantation utilizing preoperative 3D planning data.
• High-precision milling of the femoral cavity by the robot.
• Conical fixation of femoral implants to ensure primary stability.

Main Results:

• Robot-assisted surgery has been performed on 300 patients since 1994.
• Encouraging postoperative results have been observed.
• The conical fixation method guarantees high primary stability.

Conclusions:

• Robot-assisted implantation ensures optimal primary fixation for cementless THR.
• Precise robotic preparation of the femoral cavity enhances implant stability and load transfer.
• Positive outcomes support the adoption of robotic systems in hip replacement surgery.