Kinematic analysis of chewing and swallowing function after cervical spine surgery

Purpose Although movement of the hyoid bone is different for masticatory swallowing and liquid swallowing in normal subjects, it has not been studied after cervical spine surgery. Therefore, we analyzed the swallowing dynamics of masticatory swallowing in anterior cervical spine disease surgery usin...

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Bibliographic Details
Published in:European spine journal 2024-01, Vol.33 (1), p.243-252
Main Authors: Aritaki, Kota, Nakagawa, Kazuharu, Yoshimi, Kanako, Yoshizawa, Akira, Hasegawa, Shohei, Yanagida, Ryosuke, Hashimoto, Motonori, Hirai, Takashi, Yamaguchi, Kohei, Nakane, Ayako, Yoshii, Toshitaka, Okawa, Atsushi, Tohara, Haruka
Format: Article
Language:English
Subjects:
Back surgery
Biomechanical Phenomena
Bone surgery
Cervical Vertebrae - diagnostic imaging
Cervical Vertebrae - surgery
Chewing
Deglutition
Deglutition Disorders - diagnostic imaging
Deglutition Disorders - etiology
Dysphagia
Esophageal sphincter
Humans
Hyoid bone
Mastication
Medicine
Medicine & Public Health
Neurosurgery
Original Article
Pharynx
Sphincter
Spine (cervical)
Surgical Orthopedics
Swallowing
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Summary:Purpose Although movement of the hyoid bone is different for masticatory swallowing and liquid swallowing in normal subjects, it has not been studied after cervical spine surgery. Therefore, we analyzed the swallowing dynamics of masticatory swallowing in anterior cervical spine disease surgery using foods that require chewing close to actual meals. Methods A day before and one week after the surgery, a videofluoroscopic swallow study (VFSS) was performed, and the distance of hyoid bone movement in the anterior and superior directions, amount of opening of the upper esophageal sphincter (UES), time of passage through the pharynx, number of swallows, and amount of pharyngeal residual were measured on the VFSS images during a masticatory swallow of corn flakes. The swallowing function was evaluated by DSS (dysphagia severity scale) and FOIS (functional oral intake scale). Imaging software was used for the measurements. Results Postoperative hyoid movement during masticatory swallowing was not significantly different for anterior movement but significantly limited in upward movement ( p  = 0.002); UES opening volume was significantly decreased ( p  
ISSN:0940-6719
1432-0932
1432-0932
DOI:10.1007/s00586-023-08022-7