Three-dimensional visualization model and simulation operation of complex occipito-cervical deformity
LI Sen, FU Dong, CAO Jia-Meng, WANG Qing
Chinese Journal of Clinical Anatomy ›› 2013, Vol. 31 ›› Issue (2) : 135-139.
Three-dimensional visualization model and simulation operation of complex occipito-cervical deformity
Objective To establish a three-dimensional visualization model and simulated operation of a complex occipito-cervical deformity. Methods We used continuous cross-sectional scans from computed tomography angiography and magnetic resonance myelography of a patient to demonstrate basilar invagination, medullary compression, and an old atlantoaxial dislocation. Half-auto cut and reconstruction were undertaken on the skeleton, arteriovenous system, trachea, thyroid, laryngeal cartilage, and spinal cord according to the different tissue thresholds using Mimics software. A three-dimensional model of occipito-cervical deformity and its related surrounding local anatomic structures were successfully displayed. Preoperative simulation included releasable reattachment of th atlantoaxial joint through the transoral approach and posterior occipital cervical fusion with bone graft and internal fixation was performed. Results A three-dimensional visualization model of the occipito-cervical deformity was established. The three-dimensional spatial relations were successfully displayed. An anteroposterior operation for a complex occipito-cervical deformity was simulated and was verified by the clinical operation. Conclusion A three-dimensional visualization model of an occipito-cervical deformity can provide intuitive anatomical morphology and a preoperative simulation reference for clinical operations.
Occipito-cervical deformity / Three-dimensional visualization / Surgical simulation / Combined anterior and posterior approach operation
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