Predictive ability of pharyngeal inlet angle for the occurrence of postoperative dysphagia after occipitocervical fusion

• DOI: 10.1186/s12891-020-03921-y
• Publication Date: 2021-01-09T14:03:45Z
• Authors: Lin-nan Wang; Bo-wen Hu; Yue-ming Song; Li-min Liu; Chun-guang Zhou; Lei Wang; Xi Yang
• Keywords: China; Postoperative dysphagia; O-EAa; Diseases of the musculoskeletal system; 3. Good health; 03 medical and health sciences; Postoperative Complications; Spinal Fusion; 0302 clinical medicine; RC925-935; Bays; Cervical Vertebrae; Humans; PIA; Occipitocervical fusion; Prediction; Deglutition Disorders; Research Article

Abstract Background PIA has been proven to be a predictor for postoperative dysphagia in patients who undergo occipitospinal fusion. However, its predictive effect OCF is unknown. The aim of this study was evaluate the ability pharyngeal inlet angle (PIA) occurrence occipitocervical fusion (OCF). Methods Between 2010 and 2018, 98 had undergone were enrolled reviewed. Patients divided into two groups according presence dysphagia. Radiographic parameters, including atlas-dens interval (ADI), O-C2 (O-C2a), occipital external acoustic meatus axis (O-EAa), C2 tilting (C2Ta), C2-7 (C2-7a), narrowest oropharyngeal airway space (nPAS), measured compared. Simple linear regression multiple analysis used radiographic predictors In addition, we = 90° as threshold analyze on predicting Results Of patients, 26 exhibited Preoperatively, group significantly higher than that nondysphagia group. We detected O-C2a, O-EAa, nPAS all decreased sharply but increased slightly changes significant. Through analyses, found similar O-EAa nPAS. Additionally, with an increasing no dysphagia, sensitivity <90° reached 88.5%. Conclusions could undergoing OCF. Adjusting level preoperative avoid For those inevitably decreasing PIA, preserving intraoperative over would help avert Trial registration This trial registered Medical Ethics Committee West China Hospital, Sichuan University. number 762 date Sep. 9 th, 2019.