Total fusion of atlas with occipital bone: a case report
نویسندگان
چکیده
Atlas is the first cervical vertebra. It is ring shaped, without a body. It has an anterior arch, a posterior arch and two lateral masses. The lateral masses articulate with the occipital condyles to form ellipsoid type of synovial joints. The anterior arch articulates with the dens of the axis vertebra to form a pivot type of synovial joint. The posterior arch is grooved by the third part of the vertebral artery. In rare cases the lateral masses of the atlas vertebra fuse with the occipital bone.
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تاریخ انتشار 2005