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Periacetabular osteotomy using an imageless computer-assisted navigation system: a new surgical technique.
Jessica M Hooper1, Rachel R Mays2, Lazaros A Poultsides1
1Department of Orthopedic Surgery, NYU Langone Health Orthopedic Hospital, New York, NY, USA.
Journal of Hip Preservation Surgery
|February 5, 2020
Summary
Periacetabular osteotomy (PAO) surgery for hip dysplasia can be improved with imageless navigation. This technique helps confirm acetabular fragment positioning, potentially enhancing patient outcomes.
Area of Science:
- Orthopedic Surgery
- Biomedical Engineering
Background:
- Periacetabular osteotomy (PAO) effectively treats hip dysplasia by reorienting the acetabulum.
- Accurate acetabular repositioning is crucial but technically challenging in PAO.
- Imageless navigation has not been previously applied to PAO procedures.
Purpose of the Study:
- To describe a modified PAO technique incorporating imageless navigation.
- To evaluate the potential of this navigation-assisted technique to improve acetabular fragment positioning.
- To discuss the implications for patient-related outcomes in hip dysplasia treatment.
Main Methods:
- Modification of the standard PAO surgical technique.
- Integration of an imageless navigation system to verify acetabular fragment position post-osteotomy.
- Description of the surgical workflow and intraoperative use of navigation.
Main Results:
- The modified technique allows for intraoperative confirmation of acetabular fragment alignment.
- Imageless navigation provides real-time feedback on repositioning accuracy.
- The described technique aims to address the challenge of precise acetabular repositioning in PAO.
Conclusions:
- Imageless navigation offers a potential method to enhance the precision of PAO surgery.
- This modified approach may improve the technical execution of PAO, leading to better joint stability and reduced arthrosis progression.
- Further investigation is warranted to confirm improved patient-related outcomes.

