R Otero-López1, M Rivero-Garvía2, J Márquez-Rivas1, J Valencia1. 1. Pediatric Neurosurgery Unit, Department of Neurosurgery, Virgen del Rocío University Hospital, C/ Manuel Siurot s/n, 41006, Seville, Spain. 2. Pediatric Neurosurgery Unit, Department of Neurosurgery, Virgen del Rocío University Hospital, C/ Manuel Siurot s/n, 41006, Seville, Spain. monicargarvia@msn.com.
Abstract
PURPOSE: Hemivertebrae, associated with a failure in the formation and fusion of vertebral body ossification nuclei, are a common cause of thoracic or lumbar scoliosis. A cervical location is rare and even rarer as a cause of cervical subluxation in flexion and extension (for which only one previous case has been found). CASE REPORT: We report on the case of a 7-year-old female patient, who was examined for a cervical fusion defect, consisting of a posterior C4 hemivertebra and a left hemiblock from C5 to C7. After performing surgery consisting of a C4 corpectomy and anterior fixation with intersomatic graft and plate, adequate cervical stabilization with only a self-limiting left C6 brachialgia and ipsilateral Horner syndrome occurs in the postoperative period. CONCLUSION: Posterior cervical hemivertebra associated with instability is a very rare finding. The anterior approach with corpectomy and anterior plate enables suitable stabilization.
PURPOSE: Hemivertebrae, associated with a failure in the formation and fusion of vertebral body ossification nuclei, are a common cause of thoracic or lumbar scoliosis. A cervical location is rare and even rarer as a cause of cervical subluxation in flexion and extension (for which only one previous case has been found). CASE REPORT: We report on the case of a 7-year-old female patient, who was examined for a cervical fusion defect, consisting of a posterior C4 hemivertebra and a left hemiblock from C5 to C7. After performing surgery consisting of a C4 corpectomy and anterior fixation with intersomatic graft and plate, adequate cervical stabilization with only a self-limiting left C6 brachialgia and ipsilateral Horner syndrome occurs in the postoperative period. CONCLUSION: Posterior cervical hemivertebra associated with instability is a very rare finding. The anterior approach with corpectomy and anterior plate enables suitable stabilization.
Entities:
Keywords:
Cervical subluxation; Hemivertebra; Vertebral development failures
Authors: Amir M G Moghaddam; Necmettin Tanriöver; Mustafa Onur Ulu; Siyavuş Muhammedrezai; Ziya Akar Journal: Turk Neurosurg Date: 2008-04 Impact factor: 1.003