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Robot-Assisted Augmented Reality (AR)-Guided Surgical Navigation for Periacetabular Osteotomy
Haoyan Ding1, Wenyuan Sun1, Guoyan Zheng1
1Institute of Medical Robotics, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
Sensors (Basel, Switzerland)
|July 27, 2024
Summary
This study introduces a robot-assisted, augmented reality (AR) navigation system to improve periacetabular osteotomy (PAO) for hip dysplasia. The system enhances surgical accuracy and safety by providing virtual guidance and constraints during the procedure.
Area of Science:
- Orthopedic Surgery
- Robotics in Medicine
- Medical Imaging and Navigation
Background:
- Developmental dysplasia of the hip (DDH) requires surgical treatment, often via periacetabular osteotomy (PAO).
- PAO surgery presents challenges due to complex hip anatomy and limited surgical field of view (FoV).
- Existing navigation methods may lack precision or require surgeons to divert their visual attention.
Purpose of the Study:
- To develop and evaluate a robot-assisted, augmented reality (AR)-guided surgical navigation system for periacetabular osteotomy (PAO).
- To enhance surgical accuracy and safety in PAO by providing precise visual feedback and virtual constraints.
- To address the limitations of traditional PAO surgery regarding anatomical complexity and limited FoV.
Main Methods:
- A robot-assisted system integrating a robot arm, optical tracker, and Microsoft HoloLens 2 headset was developed.
- An optical marker-based AR registration method was employed for accurate superimposition of virtual models onto physical anatomy.
- The system automatically aligned a bone saw with preoperative planned osteotomy planes, offering virtual constraints and AR visual feedback.
Main Results:
- The AR registration method achieved a mean absolute distance error (mADE) of 1.96 ± 0.43 mm.
- The robotic system demonstrated high accuracy with an average center translation error of 0.96 ± 0.23 mm and average angular deviation of 3.77 ± 0.85°.
- Experimental results validated the system's accuracy in both AR registration and osteotomy execution.
Conclusions:
- The developed robot-assisted, AR-guided navigation system significantly improves accuracy and safety for periacetabular osteotomy (PAO).
- The system effectively overcomes challenges associated with hip joint anatomy and limited surgical field of view.
- This technology offers a promising advancement for surgical treatment of developmental dysplasia of the hip (DDH).
