Miniplate-Augmented Interlaminar Fusion in C1-C2 Screwing.

Area of Science:

• Neurosurgery
• Orthopedic Surgery
• Spinal Fusion Techniques

Background:

• C1-C2 interlaminar fusion with screwing is effective for atlantoaxial instability.
• Traditional wiring for bone graft stabilization carries risks of spinal cord or dura damage.
• A novel miniplate technique was developed to enhance safety and efficiency.

Purpose of the Study:

• To investigate the safety and efficacy of miniplate-augmented interlaminar fusion for C1-C2 fixation.
• To evaluate the fusion rates and complication profile of this novel surgical technique.

Main Methods:

• Retrospective review of 43 patients undergoing posterior atlantoaxial fusion with miniplate-augmented iliac crest autograft.
• Assessment of fusion success via radiography, defined by bone bridging and absence of movement.
• Recording and analysis of surgical complications and fusion times.

Main Results:

• Successful fusion achieved in 30 out of 31 patients (96.77%) with a mean fusion time of 6.23 months.
• No complications directly related to the miniplate fixation were observed.
• Minor complications included vertebral artery rupture (1), pneumonia (1), UTI (1), anemia (1), and dysesthesia (1); no neurologic deficits.

Conclusions:

• Miniplate-augmented interlaminar fusion demonstrates excellent fusion rates and a low complication probability.
• This novel technique is safe and effective for bone graft fixation during C1-C2 fusion.
• It serves as a viable alternative to conventional wiring methods for atlantoaxial instability.