Fig. 5From: The predictive ability of occipital to C3 angle for dysphagia after occipitocervical fusion in patients with combined C2–3 Klippel-Feil syndromeLateral radiograms of a patient suffering dysphagia. a. Preoperative values of O-C3a, O-C2a, O-Da, Oc-Axa and nPAS were 7.5°,1.9°, 83°, 51°, and 1.13 cm respectively. b. Postoperative O-C3a, O-C2a, O-Da, Oc-Axa and nPAS decreased to 1°, 1.7°,72°, 46°, and 0.72 cm respectivelyBack to article page