A rare case of difficult airway management in a Klippel-Feil syndrome pediatric patient with osseous torticollis undergone orthopedic surgery:

摘要

a, preoperative appearance of the pediatric patients with osseous torticollis. b, a Three-dimensional printed cervical vertebrae model of the pediatric patients with osseous torticollis. c, preoperative X-ray imaging of the lateral view of the cervical in extension position. d, the lateral view of the cervical X-ray imaging in reflection position. e, CT imaging showing the cervical spine developmental malformations (red arrow: C2-3 block vertebrae) (C, cervical vertebrae)