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“Suspended Posterior Tubercle of Atlas” with Atlantoaxial Dislocation.
World Neurosurg. 2018 Could;113:37-39
Authors: Sahoo S, Salunke P, Karthigeyan M, Rajasekhar R
Summary
INTRODUCTION: Congenital anomaly of the C1 posterior arch is a widely known entity and is usually related to atlantoaxial dislocation. Nevertheless, a well-formed C1 posterior tubercle with absence of the remaining posterior arch is uncommon. Such uncommon anomalies pose a surgical problem as attempting to delineate the arch early in the midst of surgical procedure could possibly be doubtlessly harmful. We focus on right here the same case of C1 posterior arch defect with atlantoaxial dislocation and its administration.
CASE REPORT: A 17-year-old feminine introduced with progressive spastic quadriparesis and neck ache. Analysis revealed atlantoaxial dislocation with the presence of a well-formed posterior C1 tubercle within the absence of the remainder of the posterior arch. C1-C2 joints have been opened, and lateral plenty have been fused in diminished place. Intraoperatively, a posterior C1 tubercle was discovered suspended from the lateral plenty by fibrous bands. The surgical nuances have been mentioned.
CONCLUSION: Presence of posterior tubercle alone with aplasia of the posterior arch outcomes from a persistent posterior ossification heart with nonextension of lateral ossification facilities. Within the presence of the C1 posterior fibrous arch, the joint areas have to be uncovered first earlier than making an attempt to delineate the posterior arch. This can stop inadvertent damage to the vertebral artery and dura.
PMID: 29438789 [PubMed – indexed for MEDLINE]