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Fig.3 | BMC Musculoskeletal Disorders

Fig.3

From: Motion-preserving treatment of unstable atlas fracture: transoral anterior C1-ring osteosynthesis using a laminoplasty plate

Fig.3

A 32-year-old female with atlas fracture treated by transoral anterior C1-ring osteosynthesis using a laminoplasty plate. Preoperative cervical lateral (a) and open-mouth X-rays (b), axial CT (c, d) and MRI images (e) showed combined fracture of the anterior and posterior arches with type I TAL injury. Postoperative cervical lateral (f) and open-mouth X-rays (g) identified the relatively good C1–C2 alignment. Axial CT (h) and the reconstructed images (i) after surgery showed reduction of the anterior arch fracture and optimal plate location. Transoral intraoperative view (j) showed good position of anterior laminoplasty plate fixation. Cervical lateral (k) and open-mouth X-rays (l) at 6 months after surgery showed stable fixation. An axial CT image (m) at 6 months after surgery indicated solid bone union. The dynamic cervical X-rays (n, o) at final follow-up revealed no sign of instability of C1–C2 and no loosening of the fixation

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