alexa Efficacy of Mandibular Subluxation for Carotid Endarter
ISSN: 2329-9495

Angiology: Open Access
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Research Article

Efficacy of Mandibular Subluxation for Carotid Endarterectomy with Combined Fixation Using Interdental Wire and Putty

Kimitoshi Sato1*, Yasuharu Yamazaki2, Satoru Shimizu3, Akira Takeda2 and Toshihiro Kumabe1

1Department of Neurosurgery, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan

2Department of Plastic and Aesthetic Surgery, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan

3Department of Neurosurgery, Yokohama Brain and Spine Center, Yokohama, Kanagawa, Japan

*Corresponding Author:
Kimitoshi Sato
Department of Neurosurgery
Kitasato University School of Medicine
Sagamihara, Kanagawa, Japan
Tel: +81-42-778-9337
Fax: +81-42-778-7788
E-mail: [email protected]

Received date: February 11, 2016 Accepted date: March 08, 2016 Published date: March 12, 2016

Citation: Sato K, Yamazaki Y, Shimizu S, Takeda A, Kumabe T (2016) Efficacy of Mandibular Subluxation for Carotid Endarterectomy with Combined Fixation Using Interdental Wire and Putty. Angiol 4:170. doi:10.4172/2329-9495.1000170

Copyright: © 2016 Sato K, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

Bifurcation of the carotid artery at a cephalic location greatly increases the risk associated with carotid endarterectomy (CEA). Mandibular subluxation (MS) can improve access to the cephalic location; however, the benefits of MS remain unclear. The present study objectively assessed the efficacy of MS. MS was performed with only wire fixation of healthy teeth in four patients (Group A), with wire fixation reinforced by inserting Coltoflax® putty between healthy teeth in 17 patients (Group B), and with wiring between maxillary and mandibular screws reinforced by inserting Coltoflax® putty between the wires in five edentulous patients (Group C). Pre- and postoperative axial computed tomography angiography images at the level of the tip of the mastoid process were used to compare the following measurements: mastoid-mandible distance between the anterior margin of the mastoid process and posterior margin of the mandible; and mastoid-internal carotid artery-mandible (MIM) angle between the line connecting the anterior margin of the mastoid process and the center of the internal carotid artery, and the line connecting the posterior margin of the mandible and the center of the internal carotid artery. MS increased the overall mastoid–mandible distance by 5.7 ± 3.1 mm. The increase was significantly greater in Group B (6.7 ± 2.0 mm) than in Group A or C (4.0 ± 4.1 mm) (P=0.032). MS increased the overall MIM angle by 13.3 ± 7.9º. MS with the combination of wire with Coltoflax® putty offered the widest surgical corridor for CEA.

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