STUDY DESIGN: Case reports of patients with cervical myelopathy to hypoplasia of the atlas. OBJECTIVES: To report cases of cervical myelopathy due to congenital hypoplasia of the atlas and to review the literature. SUMMARY OF BACKGROUND DATA: Six previously documented cases of congenital hypoplasia of the atlas as a cause of cervical myelopathy are reported in the literature. METHODS: Three patient's clinical record and radiologic imaging studies as well as a thorough literature search are reported. Plain radiographs, computed tomography scans, magnetic resonance images, as well as somatosensory-evoked potential changes are displayed. RESULTS: Cervical myelopathy developed in three patients who were found to have congenital hypoplasia of the atlas. Laminectomy of C1 provided neurologic improvement in all three patients presented. CONCLUSION: Congenital hypoplasia of the atlas is a rare cause of cervical myelopathy. This report should broaden the radiographic differential diagnosis when seeking an explanation for the signs and symptoms of cervical myelopathy.
STUDY DESIGN: Case reports of patients with cervical myelopathy to hypoplasia of the atlas. OBJECTIVES: To report cases of cervical myelopathy due to congenital hypoplasia of the atlas and to review the literature. SUMMARY OF BACKGROUND DATA: Six previously documented cases of congenital hypoplasia of the atlas as a cause of cervical myelopathy are reported in the literature. METHODS: Three patient's clinical record and radiologic imaging studies as well as a thorough literature search are reported. Plain radiographs, computed tomography scans, magnetic resonance images, as well as somatosensory-evoked potential changes are displayed. RESULTS:Cervical myelopathy developed in three patients who were found to have congenital hypoplasia of the atlas. Laminectomy of C1 provided neurologic improvement in all three patients presented. CONCLUSION:Congenital hypoplasia of the atlas is a rare cause of cervical myelopathy. This report should broaden the radiographic differential diagnosis when seeking an explanation for the signs and symptoms of cervical myelopathy.
Authors: Michael P Kelly; Yasushi Oshima; Jin S Yeom; Rashmi Agarwal; Navkirat S Bajwa; K Daniel Riew Journal: Spine (Phila Pa 1976) Date: 2014-10-01 Impact factor: 3.468
Authors: Yasushi Oshima; Michael P Kelly; Kwang-Sup Song; Moon Soo Park; Tapanut Chuntarapas; Katie D Vo; Jin S Yeom; Katsushi Takeshita; K Daniel Riew Journal: Global Spine J Date: 2015-09-14