Abstract
Introduction A tertiary referral centre for spinal injuries will receive referrals from many different centres. The format and quality of imaging that accompanies these patients varies considerably.
Methods Two cases are reported where initial imaging demonstrated unstable cervical spine injuries that were subsequently found to be normal. The cases and images are presented.
Results A 19-year old female was transferred to our unit having fallen off a wall and sustaining a neck injury. The accompanying CT scan showed a C6 vertebral body fracture with bilateral fracture-subluxations of the facet joints. As there was a discrepancy with the clinical findings, a repeat fine cut CT scan was performed which was completely normal. The previous appearances were entirely due to artifact throughout the scan.
A 46-year old male fell down stairs sustaining a neck injury and loss of consciousness. A CT scan of his cervical spine demonstrated an odontoid peg fracture (type II). Subsequent imaging showed the odontoid peg was completely normal. The initial CT appearances were entirely due to artifact caused by the patients’ tongue piercing!
Discussion CT scans are used with increasing frequency in the assessment of cervical spine injuries. In both these case the abnormalities present on the initial scans were entirely due to artifact that was reciprocated through the entire CT scans. Reporting these cases reinforces the importance of careful clinical examination and correlation with appropriate investigations. If there is a discrepancy between the clinical and radiological findings then it is essential that further imaging is performed.
The abstracts were prepared by Assoc Prof Bruce McPhee. Correspondence should be addressed to him at the Division of Orthopaedics, The University of Queensland, Clinical Sciences Building, Royal Brisbane Hospital, Herston, Brisbane, 4029, Australia.
