الفهرس 
Atlanto AXIAL (C1 - C2) posterior cervical fusion using posterior clamps
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Abstract
The present study was designed to determine the surgical yield of cervical C1 - C2 fixation by implantation of hooks for the treatment of patients with C1 - C2 instability. The present study included 20 patients; assigned for C1 - C2 fusion for non - neoplastic disease; diagnosis and inclusion was confirmed by magnetic resonance imaging (MRI). The applied technique for C1 - C2 hook fixation was conducted according to holness et al., using either iliac crest or artificial bone graft. Postoperative bracing (firm collar) was applied for 8 - 12 weeks. Outcome measures included radiological evaluation of successful bone fusion, neurological evaluation using the American spinal Injury association (ASIA) motor score, neck and arm pain scoring, neck disability index (NDI) and the functional independence measure (FIM) presented as total motor score. Evaluations were conducted preoperatively and at end of follow-up period of at least 6 months