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Anterior clinoid process and the surrounding structures.

Ye Cheng1, Chenyu Wang, Fan Yang

  • 1From the *Department of Human Anatomy, Norman Bethune Medical School of Jilin University, Jilin; †Viterbi School of Engineering, University of Southern California, Los Angeles, CA; ‡Worker's Hospital of Yi Chun Shang Ganling District; and §Department of Orthopedics, Changchun China-Japan Union Hospital of Jilin University, Jilin, China.

The Journal of Craniofacial Surgery
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Summary
This summary is machine-generated.

Computed tomography (CT) imaging reveals anterior clinoid process (ACP) anatomy, crucial for preventing surgical injury. This study provides key measurements and insights into ACP variations for safer neurosurgery.

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Area of Science:

  • Neurosurgery
  • Anatomical studies
  • Medical imaging

Background:

  • The anterior clinoid process (ACP) is anatomically close to critical neurovascular structures, posing surgical risks.
  • Accurate anatomical definition of the ACP is vital for surgical planning and safety.
  • Computed tomography (CT) offers a valuable tool for detailed ACP anatomical analysis.

Purpose of the Study:

  • To investigate the anatomical structure of the anterior clinoid process (ACP).
  • To analyze surrounding structures relevant to ACP-related surgeries.
  • To provide essential anatomical data for surgeons performing ACP procedures.

Main Methods:

  • Review of CT angiographic images from 102 individuals.
  • Multiplanar reformation (coronal, sagittal, axial planes) for detailed measurements.
  • Measurement of ACP length, thickness, apex distance, and classification; assessment of bone bridge occurrence.

Main Results:

  • 12.3% of the Chinese population exhibited ACP pneumatization, linked to sphenoid sinus pneumatization.
  • ACP dimensions (length, thickness) align with prior cadaver studies.
  • Bone bridge occurrence rates: 7.8% (anterior-middle clinoid) and 9.3% (anterior-posterior clinoid).

Conclusions:

  • CT imaging is effective for studying anterior clinoid process (ACP) anatomy.
  • Understanding ACP and optic strut anatomy is key to reducing surgical complications.
  • Detailed anatomical knowledge aids in proper intraoperative management during anterior clinoidectomy.