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Updated: May 24, 2026

Anterior Cervical Discectomy and Fusion in the Ovine Model
Published on: October 5, 2009
Occipitocervical fusion in an infant with atlantooccipital dislocation
Edward C Benzel1, Donald H Zhang, Christopher Iannotti
1Center for Spine Health, Department of Neurological Surgery, Cleveland Clinic, Cleveland, Ohio, USA. benzele@ccf.org
Insights
Surgical stabilization of atlantooccipital dislocation (AOD) in infants is challenging. This case report details a successful occipitocervical fusion using bone morphogenic protein 2 (BMP-2) and autologous rib in an infant with type I AOD.
Area of Science:
- Pediatric Neurosurgery
- Orthopedic Surgery
- Trauma Surgery
Background:
- Atlantooccipital dislocation (AOD) in infants presents unique surgical challenges due to the complex anatomy of the occipitocervical junction.
- Early surgical stabilization and arthrodesis are crucial for surviving children with traumatic AOD.
- Creating a safe and biomechanically sound fusion construct in infants with AOD is particularly difficult.
Observation:
- A 12-month-old female infant with type I AOD and gross instability resulting from a motor vehicle accident underwent surgical stabilization.
- The procedure involved occiput to C2 arthrodesis using autologous rib, augmented with bone morphogenic protein 2 (BMP-2), Mersilene, and Ethibond sutures.
- No intraoperative complications occurred during the stabilization procedure.
Findings:
- Postoperative cervical spine CT at 12 weeks showed excellent occipitocervical alignment and evidence of bony fusion from the occiput to C2.
- Neurological examination revealed progressive improvement, including partial resolution of sixth nerve palsies and enhanced muscle strength and tone.
Implications:
- This case demonstrates the successful application of BMP-2-augmented occipitocervical fusion in an infant with severe AOD and instability.
- The described technique using autologous rib, BMP-2, and specific sutures offers a viable solution for complex pediatric occipitocervical fusion.
- This approach may improve outcomes for infants suffering from traumatic atlantooccipital dislocation.
Background:
For children who survive traumatic atlantooccipital dislocation (AOD), early surgical stabilization and arthrodesis of the occipitoatlantoaxial complex is typically performed. Because of the unique and crowded anatomy of the occipitocervical junction, the creation of a fusion construct that is both safe and biomechanically sound is extremely challenging, especially in infants. We present a technical report of a patient with infantile type I AOD with gross instability, who underwent surgical stabilization consisting of occiput to C2 arthrodesis using autologous rib, augmented with bone morphogenic protein 2 (BMP-2), Mersilene suture, and Ethibond suture as "cross-connectors."
Case Description:
The patient is a 12-month-old female infant who was involved in a high-speed motor vehicle accident and sustained a type I AOD. Definitive surgical stabilization consisting of arthrodesis from the occiput to C2 using autologous rib augmented with BMP-2, Mersilene suture, and Ethibond suture as cross-connectors was performed. There were no intraoperative complications. A follow-up cervical spine computed tomography obtained 12 weeks postoperatively demonstrated excellent occipitocervical alignment, with evidence of modest bony fusion from the occiput to C2. Neurologic examination demonstrated modest, but progressive, improvement, with partial resolution of bilateral sixth nerve palsies, and improvement in upper- and lower-extremity muscle strength and tone.
Conclusion:
Significant surgical challenges exist regarding occipitocervical fusion in infants with AOD and gross instability. This case report illustrates the successful application of BMP-2-augmented occipitocervical fusion using autologous rib, in combination with Mersilene and Ethibond suture, in the treatment of an infant with type I AOD with gross instability.
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