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Pioneering Patient-Specific Approaches for Precision Surgery Using Imaging and Virtual Reality
Published on: April 5, 2024
Passive navigation principle for orthopedic interventions with MR fluoroscopy.
Hermann J Bail1, Ulf K M Teichgräber, Florian Wichlas
1Center for Musculoskeletal Surgery, Charité, Universitätsmedizin Berlin, Berlin, Germany. hermann.bail@charite.de
Archives of Orthopaedic and Trauma Surgery
|November 19, 2009
Summary
This study introduces a novel passive navigation device for magnetic resonance (MR) fluoroscopy in orthopedic surgery. This technique enables precise drilling for conditions like osteochondral lesions without radiation exposure.
Area of Science:
- Orthopedic Surgery
- Medical Imaging
- Computer-Assisted Surgery
Background:
- Computer-assisted surgery presents challenges in orthopedics.
- Magnetic resonance (MR) fluoroscopy is emerging for orthopedic interventions.
- A new passive navigation concept for MR-guided musculoskeletal interventions has been developed.
Purpose of the Study:
- To evaluate an innovative passive navigation concept for MR-guided musculoskeletal interventions.
- To assess the feasibility and accuracy of navigated drilling for osteochondral lesions of the talus.
- To demonstrate a novel navigation approach using cross-sectional MR imaging.
Main Methods:
- A passive navigation device was constructed.
- The device was evaluated in retrograde drilling of artificial osteochondral lesions in nine cadaveric ankle specimens.
- Interactive high-field MR fluoroscopy was utilized.
Main Results:
- Precise drilling of osteochondral lesions of the talus was achieved with an accuracy of 1.6 mm.
- The passive aiming device and MR fluoroscopy proved effective despite complex ankle anatomy.
- The drilling guide was demonstrated to be safe and easy to handle.
Conclusions:
- MR-assisted retrograde drilling offers precise and safe treatment for osteochondral lesions without radiation.
- This passive navigation technique for MR fluoroscopy is applicable to various orthopedic interventions.
- Pediatric and adolescent patients may particularly benefit from this MRI-based approach.
