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Computer-assisted navigation in hip resurfacing arthroplasty - a single-surgeon experience
John S Shields1, Thorsten M Seyler, Cara Maguire
1Department of Orthopaedic Surgery, Wake Forest University School of Medicine, Winston-Salem, NC, USA.
Bulletin of the NYU Hospital for Joint Diseases
|July 9, 2009
Summary
Computer-assisted navigation in hip resurfacing arthroplasty offers real-time feedback for improved repeatability. For experienced surgeons, it enhances consistency without significantly altering the learning curve for this complex procedure.
Area of Science:
- Orthopedic Surgery
- Medical Technology
Background:
- Hip resurfacing arthroplasty is a complex surgical procedure requiring precise femoral component orientation.
- Improper component positioning can lead to implant failure.
- Computer-assisted navigation (CAS) has demonstrated potential in reducing the learning curve for novice surgeons and improving consistency.
Purpose of the Study:
- To evaluate the impact of computer-assisted surgery on the learning curve for an experienced hip resurfacing surgeon.
- To assess the effect of CAS on surgical outcomes and repeatability.
Main Methods:
- Retrospective review of 100 consecutive navigated hip resurfacing arthroplasties.
- Comparison with a matched group of 25 non-navigated hip resurfacing arthroplasties performed by the same surgeon.
- Assessment of preoperative and postoperative neck-shaft angles, operative times, and complication rates.
Main Results:
- Mean operative time for navigated procedures was 101 minutes, compared to 104 minutes for non-navigated procedures.
- Computer-assisted navigation did not significantly affect the learning curve for an experienced surgeon.
- CAS provided valuable real-time feedback and enhanced repeatability in component placement.
Conclusions:
- For experienced hip resurfacing surgeons, computer-assisted navigation enhances surgical repeatability and provides valuable feedback.
- CAS does not appear to shorten the learning curve for surgeons already proficient in hip resurfacing.
- The use of CAS can contribute to optimizing patient outcomes through improved consistency.
