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      The postoperative trismus, nerve injury and secondary angle formation after partial masseter muscle resection combined with mandibular angle reduction: a case report

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          Abstract

          A patient, who underwent partial masseter muscle resection and mandibular angle reduction at a plastic surgery clinic, visited this hospital with major complaints of trismus and dysesthesia. A secondary angle formation due to a wrong surgical method was observed via clinical and radiological examinations, and the patient complained of trismus due to the postoperative scars and muscular atrophy caused by the masseter muscle resection. The need for a masseter muscle resection in square jaw patients must be approached with caution. In addition, surgical techniques must be carefully selected in order to prevent complications, and obtain effective and satisfactory surgery results.

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          Occlusal dysesthesia: a qualitative systematic review of the epidemiology, aetiology and management.

          T Kuboki, E Hara, H Minakuchi … (2012)
          Occlusal dysesthesia refers to a persistent complaint of uncomfortable bite sensation with no obvious occlusal discrepancy. This systematic review aimed to draw a picture of such patients, to present an agreement of previously reported diagnostic criteria and to analyse the evidence level of the recommended management approaches. An electronic search for all relevant reports on occlusal dysesthesia was thoroughly performed based on previous nomenclatures (e.g. phantom bite, occlusal hyperawareness) in PubMed and The Cochrane Library in July, 2011. A total of 84 reports were matched, among which only 11 studies were included after a two-step (abstract and detailed full-text revision) screening process. Additionally, a thorough manual review of reference lists of the included reports enabled the inclusion of two additional studies. Data analysis revealed that 37 occlusal dysesthesia patients presented a mean age of 51.7 ± 10.6 years and were predominantly women (male/female: 1/5.1) with symptom duration of more than 6 years (average: 6.3 ± 7.5 years) and with concomitant psychological disturbances (e.g. mood disorders, somatoform disorders, personality disorders). Only four authors presented diagnostic criteria for occlusal dysesthesia, which served as the basis for an agreement in the diagnostic criteria. Treatment approaches included psychotherapy, cognitive/behaviour therapy, splint therapy and prescription of anti-depressants or anti-anxiety drugs. Classification of evidence level of management approaches, however, revealed that most of them were expert opinions with single- or multiple-case report(s). Future studies are necessary for a deeper understanding of the mechanisms behind the occlusal dysesthesia symptoms, and consequently, for improvements in evidence-based management approaches. © 2012 Blackwell Publishing Ltd.
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            Surgical intervention for oromandibular dystonia-related limited mouth opening: Long-term follow-up.

            Kazuya Yoshida (2017)
            Oromandibular dystonia is a movement disorder that is characterized by involuntary masticatory and/or lingual muscle contracture. Jaw closing dystonia, the most common subtype of this condition, can cause trismus and is frequently misdiagnosed as temporomandibular joint disorder or masticatory muscle tendon-aponeurosis hyperplasia.
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              The prominent mandibular angle: preoperative management, operative technique, and results in 42 patients.

              A Bindiger, S S Kim, S M Baek (1989)
              A prominent mandibular angle is considered to be unattractive in the Orient because it gives the face a square and muscular appearance. While described infrequently in the United States, this entity is commonly encountered in the Orient owing to different facial characteristics and different aesthetic sensibilities. We present a retrospective study of 42 female patients who presented requesting the reduction of a prominent mandibular angle for cosmetic reasons. We describe our approach, which utilizes formal planimetry, cephalometric tracings, and Panorex mandibular radiographs. We utilize the intraoral approach and use an oscillating saw to resect the predetermined segment of bone. In 18 of the 42 patients, we resected muscle as well. We also describe using the preauricular incision in a patient undergoing a concomitant rhytidectomy. Our cosmetic results have been generally satisfactory, with only one inaccurate osteotomy. We had three infections which resolved without sequelae.
              Article 0 comments Cited 11 times – based on 0 reviews     Review now
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                Author and article information

                Journal
                Journal ID (nlm-ta): J Korean Assoc Oral Maxillofac Surg
                Journal ID (iso-abbrev): J Korean Assoc Oral Maxillofac Surg
                Journal ID (publisher-id): JKAOMS
                Title: Journal of the Korean Association of Oral and Maxillofacial Surgeons
                Publisher: The Korean Association of Oral and Maxillofacial Surgeons
                ISSN (Print): 2234-7550
                ISSN (Electronic): 2234-5930
                Publication date (Print): February 2017
                Publication date (Electronic): 20 February 2017
                Volume: 43
                Issue: 1
                Pages: 46-48
                Affiliations
                [1 ]Department of Oral and Maxillofacial Surgery, Section of Dentistry, SMG-SNU Boramae Medical Center, Seoul, Korea.
                [2 ]Department of Oral and Maxillofacial Surgery, School of Dentistry, Seoul National University, Seoul, Korea.
                Author notes
                Corresponding author: Yoon-Sic Han. Department of Oral and Maxillofacial Surgery, Section of Dentistry, SMGSNU Boramae Medical Center, 20 Boramae-ro 5-gil, Dongjak-gu, Seoul 07061, Korea. TEL: +82-2-870-2495, FAX: +82-2-831-0714, hanomfs@ 123456gmail.com
                Author information
                http://orcid.org/0000-0003-1424-5802
                http://orcid.org/0000-0002-6112-1768
                http://orcid.org/0000-0002-4055-3131
                http://orcid.org/0000-0002-0413-2954
                http://orcid.org/0000-0001-8060-5330
                Article
                DOI: 10.5125/jkaoms.2017.43.1.46
                PMC ID: 5342973
                SO-VID: dabe368f-edff-4865-995f-88628ffb5e35
                Copyright © Copyright © 2017 The Korean Association of Oral and Maxillofacial Surgeons. All rights reserved.
                License:

                This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

                History
                Date received : 27 October 2016
                Date revision received : 14 December 2016
                Date accepted : 25 December 2016
                Categories
                Subject: Special Article Associated with Complications

                Keywords: masseter muscle resection,mandibular angle reduction,trismus,nerve damage,secondary angle
                Data availability:
                Keywords: masseter muscle resection, mandibular angle reduction, trismus, nerve damage, secondary angle

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