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Fig.4 | BMC Musculoskeletal Disorders

Fig.4

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

Fig.4

A 41-year-old female with atlas fracture treated by transoral anterior C1-ring osteosynthesis using a laminoplasty plate. Preoperative open-mouth (a) and cervical lateral X-rays (b), and axial CT (c) showed combined fracture of the anterior and posterior arches. Postoperative open-mouth (d) and cervical lateral X-rays (e) revealed the relatively good C1–C2 alignment. Axial CT (f) after surgery identified good reduction of the anterior and posterior arch fractures, and optimal placement of plate. Open-mouth (g), cervical lateral (h) and dynamic X-rays (i, j) at 9 months after surgery showed reliable fixation without instability of C1–C2. Axial CT images (k, l) at 9 months after surgery indicated satisfactory bone union of anterior and posterior arch fractures

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