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Radiological analysis of ponticulus posticus in Koreans

Title
Radiological analysis of ponticulus posticus in Koreans
Authors
Cho Y.J.
Ewha Authors
조용재
SCOPUS Author ID
조용재scopus
Issue Date
2009
Journal Title
Yonsei Medical Journal
ISSN
0513-5796JCR Link
Citation
vol. 50, no. 1, pp. 45 - 49
Indexed
SCI; SCIE; SCOPUS; KCI WOS scopus
Abstract
Purpose: Since there has been little reporting on the prevalence or morphologic characteristics of ponticulus posticus in Asians, we retrospectively reviewed cervical 3-dimensional CT scan images and plain radiographs which had been ordered by neurosurgeons or orthopaedic surgeons for evaluation of cervical spine problems to investigate the prevalence and morphologic features of the ponticulus posticus in Koreans. Patients and Methods: The presence and types of ponticulus posticus were investigated on 200 consecutive cervical 3-D CT scans. Results: Thirty-one patients, 48 ponticulus posticus, complete or partial, bilateral or unilateral, were identified on the 200 cervical 3-D CT scans; therefore, the prevalence was 15.5% in our patient population. In plain radiographs analysis, the prevalence was 6.95%. Conclusion: The ponticulus posticus is a relatively common anomaly in Koreans. Therefore, proper identification of this anomaly on preoperative lateral radiographs should alert surgeons to avoid using the ponticulus posticus as a starting point for a lateral mass screw. Because of its size and shape have wide variation, 3-D CT scanning should be considered before lateral mass screw placement into the posterior arch if its presence is suspected or confirmed on radiographs.
DOI
10.3349/ymj.2009.50.1.45
Appears in Collections:
의학전문대학원 > 의학과 > Journal papers
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