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[Lateral mass screws of the atlas combined with vertebra dentata pedicle screws for treatment of upper cervical vertebral instability]

OBJECTIVE: To evaluate the therapeutic effects of fixation and fusion with lateral mass screws of the atlas and vertebra dentata pedicle screws for the treatment of upper vertebral instability. METHODS: Ten patients with atlantoaxial instability, including 3 with old odontoid fracture and 7 with fresh odontoid fracture (Aderson II) received surgeries for fixation and fusion with lateral mass screws of the atlas and vertebra dentata pedicle screws. RESULTS: No spinal cord or vertebral artery injuries occurred in these patients after the surgery. The follow-up duration ranged from 3 to 15 months with an average of 8 months. The postoperative JOA scores were from l3.2 to l6.8, with an average of l4.8. Clinical improvement was achieved in 87.5% of the patients, and the implanted bones all fused successfully without internal fixation rupture or mobilization. CONCLUSION: Lateral mass screws of the atlas combined with vertebra dentata pedicle screws allows three-dimensional fixation for treatment of atlantoaxial instability

Keywords : Adult,Arteries,Atlanto-Axial Joint,Axis,Cervical Vertebra,Bone Screws,Cervical Atlas,China,complications,diagnostic imaging,etiology,Female,Fracture Fixation,Internal,Humans,injuries,Joint Instability,Male,methods,Middle Aged,Patients,Radiography,Rupture,Spinal Cord,Spinal Fractures,Spinal Fusion,Spine,surgery,Vertebral Artery,, Mass,Screws,Atlas, physio west london

Date of Publication : 2010 Feb

Authors : Zhang D;He Q;Huang YX;

Organisation : Department of Spine Surgery, Dazhou Central Hospital, Dazhou 635000, China. [email protected]

Journal of Publication : Nan Fang Yi Ke Da Xue Xue Bao

Pubmed Link : https://www.ncbi.nlm.nih.gov/pubmed/20159722

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