Abstract:
STUDY DESIGN:Linear and angular measurements were performed on 128 vertebrae (16 spines) from C5 to T5. OBJECTIVES:Vertebrae were studied to characterize vertebral shape and size changes in the cervico-thoracic region. SUMMARY OF BACKGROUND DATA:Analysis of vertebral anatomy has been extensive and well characterized. Regions of transitional anatomy necessitate further study due to the often abrupt changes in anatomic relationships. METHODS:Two observers performed linear and angular measurements including pedicle width, height, and length, as well as pedicle-body, pedicle-lamina, lamina-transverse process, and pedicle-lamina angular measurements. Pedicle axis projection on the posterior aspect of the lamina was also calculated. RESULTS:The mean pedicle width ranged from 7.8 mm (T1) to 4.4 mm (T5). The body-pedicle angle decreased > 4 degrees per level in the transverse plane, from 50 degrees (C5) to 11 degrees (T5). The axial projection of the pedicle changed throughout the region (compared with level above) and was significant for T1. CONCLUSIONS:Because of the complexities of the cervico-thoracic junction, additional characterization increases the knowledge of the anatomic relationships in this region.
journal_name
Spine (Phila Pa 1976)journal_title
Spineauthors
Stanescu S,Ebraheim NA,Yeasting R,Bailey AS,Jackson WTdoi
10.1097/00007632-199409150-00014subject
Has Abstractpub_date
1994-09-15 00:00:00pages
2082-8issue
18eissn
0362-2436issn
1528-1159journal_volume
19pub_type
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