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C2 Laminar screw-screw assembly for the cranio-cervical junction
Wei Song1,2, Haihong Zhang1,2, Jing Wang1,2,3
1The Second Hospital & Clinical Medical School, Lanzhou University, Lanzhou, Gansu, China.
Frontiers in Surgery
|June 29, 2026
Summary
Atlantoaxial dislocation treatment is improved with a new laminar screw-screw fixation technique. This method addresses challenges posed by anatomical variations in the upper cervical spine, enhancing surgical outcomes.
Area of Science:
- Orthopedic Surgery
- Neurosurgery
- Spinal Disorders
Background:
- Atlantoaxial dislocation is a frequent upper cervical spine condition requiring surgical intervention.
- Traditional treatments include transoral release and posterior screw-rod fixation.
- Anatomical variations in the atlas and axis complicate traditional screw placement.
Purpose of the Study:
- To introduce and evaluate a novel laminar screw-screw fixation technique for atlantoaxial dislocation.
- To provide an alternative to traditional C2 screw fixation, especially in cases with anatomical variations.
Main Methods:
- A new laminar screw-screw fixation technique was developed and implemented.
- This technique was used as a replacement for conventional C2 screw fixation in patients with atlantoaxial dislocation.
Main Results:
- The laminar screw-screw fixation technique was successfully applied in treating atlantoaxial dislocation.
- This method offers a viable alternative for managing complex cases with anatomical challenges.
Conclusions:
- The laminar screw-screw fixation technique is an effective surgical option for atlantoaxial dislocation.
- This innovative approach may overcome the limitations of traditional methods in patients with specific anatomical variations.
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