Oral Maxillofac Surg (2017) 21:313–319 DOI 10.1007/s10006-017-0633-2 ORIGINAL ARTICLE Hypoesthesia associated with mandibular movement after sagittal split ramus osteotomy 1 1 1 2 Toru Yamamoto & Keiko Fujii-Abe & Haruhisa Fukayama & Hiroshi Kawahara Received: 28 March 2017 /Accepted: 22 May 2017 /Published online: 5 June 2017 Springer-Verlag Berlin Heidelberg 2017 . . Abstract Keywords Hypoesthesia Neurosensory disturbance Purpose This retrospective study investigated the relationship Orthognathic surgery Sagittal split osteotomy between the degree of neurosensory disturbance (NSD) and mandibular movement distance after sagittal split ramus osteotomy (SSRO) and assessed sensory recovery. Introduction Methods Lower lip hypoesthesia was evaluated at 1 week, 1 month, and 2 months after SSRO in 38 patients categorized Neurosensory disturbance (NSD) of the inferior alveolar nerve according to the distance of mandibular movement: S group (IAN) is one of the most frequent complications after sagittal (0–7mm; n = 17, 4 males and 13 females) and L group (7– split ramus osteotomy (SSRO). A common manifestation is 14 mm; n = 21, 7 males, 14 females). Symptoms were evalu- numbness of the lower lip (hypoesthesia). Although NSD dis- ated by visual analog scale (VAS), tactile-threshold (SW) test, appears within several months after surgery in many patients
Oral and Maxillofacial Surgery – Springer Journals
Published: Jun 5, 2017
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