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Updated: Aug 7, 2026

06:18
Pedicle Screw Placement Using an Augmented Reality Head-Mounted Display in a Porcine Model
Published on: May 24, 2024
[Anatomic evaluation the entry point of C2 pedicle screw]
Xiang-yang Ma1, Qing-shui Yin, Zeng-hui Wu
1Department of Orthopaedics, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou 510010, China. maxy1001@sina.com
Zhonghua Wai Ke Za Zhi [Chinese Journal of Surgery]
|June 21, 2006
Summary
The C(2) inferior articular process serves as a reliable landmark for accurate C(2) pedicle screw placement. This study establishes new techniques for precise screw insertion in C(2) pedicle fixation.
Area of Science:
- Spinal anatomy
- Surgical techniques
- Orthopedic surgery
Context:
- Cervical spine instability requires precise surgical fixation.
- Accurate C(2) pedicle screw placement is crucial for successful outcomes.
- Existing landmarks for C(2) pedicle screw placement can be challenging.
Purpose:
- To investigate the anatomical relationship between the C(2) pedicle and the C(2) inferior articular process.
- To develop and validate a technique for C(2) pedicle screw placement using the C(2) inferior articular process as a landmark.
Summary:
- Measurements of 50 C(2) bone specimens determined the spatial relationship between the C(2) pedicle and the C(2) inferior articular process.
- Two distinct techniques for C(2) pedicle screw entry point determination were established based on the C(2) inferior articular process.
- Consistent anatomical correlations allow the C(2) inferior articular process to guide C(2) pedicle screw placement.
Impact:
- Provides surgeons with a reliable anatomical landmark for improved C(2) pedicle screw fixation.
- Enhances the safety and accuracy of C(2) pedicle screw placement in cervical spine surgery.
- Contributes to the understanding of C(2) anatomy for spinal instrumentation.

