Fig. 4From: Surgical treatment of a complex craniocervical malformation combined with posterior cranial fossa teratoma: a case report and literature reviewIntraoperative C-arm radiograph in the revision surgery. a C2 pedicle screws were inserted. b After anterior transoral release, the tip of the odontoid was clearly brought down. c The posterior occipitocervix fixation was performedBack to article page