title: Short-term effects of orthognathic surgery on somatosensory function and recovery pattern in the early postoperative period.
abstract: We examined the short-term surgical effects of orthognathic surgery on somatosensory function. Observations were made over a short period: 3 months postoperatively. In total, 14 patients and 32 healthy controls participated. Among the 14 patients, one underwent bilateral sagittal split osteotomy alone and 13 underwent bilateral sagittal split osteotomy in combination with a Le Fort I osteotomy. A modified quantitative sensory testing (QST) protocol (the German Research Network on Neuropathic Pain, DFNS) was used to evaluate clinically the skin of the chin for sensory disturbances before surgery and at 1 week, 1 month, and 3 months postoperatively. A visual analog scale and the Japanese Version of the McGill Pain Questionnaire were completed by all participants. Both sides of the mandible showed postoperative functional loss in cold detection threshold, warmth detection threshold, thermal sensory limen, and mechanical detection threshold. All function gradually recovered to baseline conditions at 3 months postoperatively. Cold detection threshold, warmth detection threshold, thermal sensory limen, and mechanical detection threshold appeared to be useful QST parameters for evaluating neurosensory disturbances during the early postoperative period. (J Oral Sci 58, 177-184, 2016).
authors.affiliation: Department of Oral Diagnostic Sciences, Nihon University School of Dentistry.
authors.forename: Ko
authors.initials: K
authors.lastname: Dezawa
authors.forename: Noboru
authors.initials: N
authors.lastname: Noma
authors.forename: Kosuke
authors.initials: K
authors.lastname: Watanabe
authors.forename: Yuka
authors.initials: Y
authors.lastname: Sato
authors.forename: Ryutaro
authors.initials: R
authors.lastname: Kohashi
authors.forename: Morio
authors.initials: M
authors.lastname: Tonogi
authors.forename: Gary
authors.initials: G
authors.lastname: Heir
authors.forename: Eli
authors.initials: E
authors.lastname: Eliav
authors.forename: Yoshiki
authors.initials: Y
authors.lastname: Imamura
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D057909:Orthognathic Surgery; D011184:Postoperative Period; D013003:Somatosensory Cortex / Q000503:physiopathology*; D055815:Young Adult