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Posterior atlantoaxial dislocation without odontoid fracture
Reema Chaudhary1, Kshitij Chaudhary, Umesh Metkar
1Department of Radiology, King Edward VII Memorial Hospital, Parel, Mumbai, India.
Skeletal Radiology
|February 9, 2008
Summary
This case study details a rare posterior atlantoaxial dislocation without odontoid fracture in a woman. An intact transverse ligament aided C1-C2 complex stability after reduction.
Area of Science:
- Neurosurgery
- Orthopedics
- Radiology
Background:
- Posterior atlantoaxial dislocation is a rare spinal injury.
- Odontoid fracture is often associated with this dislocation.
- The role of the transverse ligament in stability is not well-documented.
Observation:
- A 35-year-old woman presented with posterior atlantoaxial dislocation.
- No fracture of the odontoid process was identified.
- Magnetic resonance imaging (MRI) demonstrated an intact transverse ligament.
Findings:
- The transverse ligament's integrity was confirmed via MRI.
- An intact transverse ligament likely stabilized the C1-C2 complex.
- This finding is significant given the rarity of similar reported cases.
Implications:
- Highlights the importance of assessing transverse ligament integrity in atlantoaxial dislocations.
- Suggests that an intact transverse ligament can contribute to stability.
- Informs surgical and non-surgical management strategies for this specific injury pattern.
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