Abstract:
STUDY DESIGN:Clinical literature consistently identifies women as more susceptible to trauma-related neck pain, commonly resulting from soft tissue cervical spine injury. Structural gender differences may explain altered response to dynamic loading in women leading to increased soft tissue distortion and greater injury susceptibility. OBJECTIVE:Identify anatomic gender differences in cervical spinal geometry that contribute to decreased column stability in women. SUMMARY OF BACKGROUND DATA:Previous studies investigating male and female vertebral and vertebral body geometry demonstrated female vertebral dimensions were smaller. However, populations were not size matched and parameters related to biomechanical stability were not reported. METHODS:Computed tomography scans of the cervical spine were obtained from size-matched young healthy volunteers. Geometrical dimensions were obtained at the C4 level and analysis of variance determined significant gender differences. RESULTS:Two volunteer subsets were size matched based on sitting height and head circumference. All geometrical measures were greater in men for both subsets. Vertebral width and disc-facet depth were significantly greater in men. Additionally, segmental support area, combining interfacet width and disc-facet depth, was greater in men, indicating more stable intervertebral coupling. CONCLUSION:Present results of decreased linear and areal cervical dimensions leading to decreased column stability may partially explain increased traumatic injury rates in women.
journal_name
Spine (Phila Pa 1976)journal_title
Spineauthors
Stemper BD,Yoganandan N,Pintar FA,Maiman DJ,Meyer MA,DeRosia J,Shender BS,Paskoff Gdoi
10.1097/BRS.0b013e318160462asubject
Has Abstractpub_date
2008-01-15 00:00:00pages
E44-9issue
2eissn
0362-2436issn
1528-1159pii
00007632-200801150-00025journal_volume
33pub_type
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