title: Kinematic changes in swallowing after surgical removal of anterior cervical osteophyte causing Dysphagia: a case series.
abstract: This retrospective case series included five patients who underwent surgical resection of the cervical anterior osteophyte due to dysphagia. Videofluoroscopic swallowing studies (VFSSs) were performed before and after surgery on each patient, and kinematic analysis of the video clips from the VFSS of a 5-mL liquid barium swallow was carried out. Functional oral intake improved after surgery in 3/4 patients who had required a modified diet before surgery. Kinematic analysis showed increases in the maximal hyoid vertical movement length (13.16±5.87 to 19.09±4.77 mm, p=0.080), hyoid movement velocities (170.24±84.71 to 285.53±104.55 mm/s, p=0.043), and upper esophageal sphincter opening width (3.97±0.42 to 6.39±1.32 mm, p=0.043) after surgery. In conclusion, improved upper esophageal sphincter opening via enhancement of hyoid movement after cervical anterior osteophyte resection may be the kinetic mechanism of improved swallowing function.
authors.affiliation: Department of Rehabilitation Medicine, Seoul National University College of Medicine, Seoul, Korea.
authors.forename: Hyeonghui
authors.initials: H
authors.lastname: Jeong
authors.affiliation: Department of Rehabilitation Medicine, Seoul National University College of Medicine, Seoul, Korea.
authors.forename: Han Gil
authors.initials: HG
authors.lastname: Seo
authors.affiliation: Department of Rehabilitation Medicine, Seoul National University College of Medicine, Seoul, Korea.
authors.forename: Tai Ryoon
authors.initials: TR
authors.lastname: Han
authors.affiliation: Department of Neurosurgery, Seoul National University College of Medicine, Seoul, Korea.
authors.forename: Chun Kee
authors.initials: CK
authors.lastname: Chung
authors.affiliation: Department of Rehabilitation Medicine, Seoul National University College of Medicine, Seoul, Korea.
authors.forename: Byung-Mo
authors.initials: BM
authors.lastname: Oh
keywords: Deglutition disorders; Hyoid bone; Osteophyte