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Computer-Assisted Arthroscopic Cam Resection.

Thomas W Fenn1, Kyleen Jan2, Jordan H Larson2

  • 1Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois, U.S.A..

Arthroscopy : the Journal of Arthroscopic & Related Surgery : Official Publication of the Arthroscopy Association of North America and the International Arthroscopy Association
|March 17, 2024
PubMed
Summary
This summary is machine-generated.

Accurate femoral cam resection during hip arthroscopy for femoroacetabular impingement syndrome is crucial. New software provides real-time guidance, improving resection accuracy and reducing the risk of revision surgery.

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Area of Science:

  • Orthopedic Surgery
  • Medical Imaging
  • Surgical Technology

Background:

  • Femoroacetabular impingement syndrome (FAIS) requires precise femoral cam resection during hip arthroscopy.
  • Inadequate resection leads to failed procedures, while over-resection risks femoral neck fracture.
  • The alpha angle is a key metric for diagnosing FAIS and assessing resection adequacy.

Purpose of the Study:

  • To evaluate a computer-assisted navigation system for intraoperative guidance during femoral cam resection in hip arthroscopy.
  • To assess the system's ability to enhance accuracy and provide real-time feedback without routine preoperative CT scans.

Main Methods:

  • Utilized HipCheck software for intraoperative guidance with live alpha angle measurements overlaid on fluoroscopic images.
  • Employed touchscreen navigation to identify femoral neck and head midpoints.
  • Software provided real-time alpha angle measurements and visualized deformity with an adjustable resection curve.
  • Assessed resection adequacy using alpha angle measurements in six hip positions post-resection.

Main Results:

  • The software offers real-time alpha angle measurements and visualization of the cam deformity.
  • Provides a template for appropriate resection depth in six positions.
  • Enables assessment of resection completeness via alpha angle measurements post-procedure.

Conclusions:

  • Computer-assisted navigation systems, like HipCheck software, can enhance the accuracy of femoral cam resection in hip arthroscopy.
  • This technology may reduce the need for preoperative CT scans and improve patient outcomes by ensuring adequate resection.
  • Real-time feedback and guided resection templates contribute to safer and more effective surgical treatment of FAIS.