As a surgical approach targeting the pterygopalatine fossa following maxillary cancer due to tumor invasion, Crockett's method is conventional and useful. However, if the tumor is confined to the area between the maxilla and pterygopalatine fossa, it is not necessary to include the zygomatico-orbital in the access osteotomy, and the orbital floor may be preserved. Depending on the range of tumor invasion, the current study reports a more minimally invasive, modified Crockett's surgery that may be considered, which includes resection with modified osteotomy lines and repositioning with fixation of the zygoma and zygomatic arch following maxillary cancer ablation. In addition, the majority of patients with advanced maxillary cancer may require postoperative radiotherapy or chemoradiotherapy following maxillectomy according to several guidelines. Therefore, using a low-profile bioactive resorbable plate system as a method of repositioning and fixing the resected and preserved zygoma and zygomatic arch may be more effective in this modified Crockett's method for maxillectomy.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5492772PMC
http://dx.doi.org/10.3892/mco.2017.1269DOI Listing

Publication Analysis

Top Keywords

zygoma zygomatic
12
zygomatic arch
12
modified crockett's
12
crockett's method
12
maxillary cancer
12
bioactive resorbable
8
resorbable plate
8
plate system
8
method maxillectomy
8
pterygopalatine fossa
8

Similar Publications

Background: Botulinum toxin is an attenuated neurotoxin of Clostridium Botulinum gram positive bacterial, which is used in medication sialorrhea, cervical dystonia, hyperhidrosis and non-surgical cosmetic operation (aesthetic) such as facial wrinkles and reduced the bulky appearance hypertrophied of masseter muscle. This study was designed to revealed the effect of zygomiticus inoculation of botulinum toxin B in zygomatic muscle of rats on zygomatic bone.

Methods: A total of 25 male albino rats (200-260 gm) were injected facial intramuscular by a single dose of 2.

View Article and Find Full Text PDF

Background: Zygomatic implants are becoming an ideal treatment approach for implant-supported prosthesis treatment developed for the atrophic maxilla. This study aims to evaluate the amount and distribution of stress in implants and peri-implant bone using different implant-supported prosthesis configurations in Aramany Class I maxillary defects through 3-dimensional finite element analysis.

Methods: A 3-dimensional finite element model of the Aramany class I defect was created.

View Article and Find Full Text PDF

Feasibility, trueness and precision of intraoral scanners in digitizing maxillectomy defects with exposed zygomatic implants in situ: An in vitro 3D comparative study.

J Dent

February 2025

Department of Reconstructive Dentistry and Gerodontology, University of Bern, Bern, Switzerland; Department of Conservative Dentistry and Orofacial Prosthodontics, Complutense University of Madrid, Madrid, Spain; Complutense University of Madrid, Ramon y Cajal Research Institute (IRYCIS). Madrid, Spain. Electronic address:

Objectives: To in-vitro evaluate the feasibility and accuracy (trueness and precision) of various intraoral scanners (IOS) to digitize maxillectomy defect models with exposed zygomatic implants in situ.

Material And Methods: Six partially edentulous and edentulous maxillectomy defect models with 2 zygomatic implants each were obtained. References scans were obatined by using a laboratory scanner (inEos X5; Dentsply Sirona).

View Article and Find Full Text PDF

Automatic virtual reduction of unilateral zygomatic fractures based on ICP algorithm: A preliminary study.

J Stomatol Oral Maxillofac Surg

January 2025

Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, PR China; National Engineering Laboratory for Digital and Material Technology of Stomatology, PR China; Beijing Key Laboratory of Digital Stomatology, PR China; National Clinical Research Center for Oral Diseases, Beijing, PR China. Electronic address:

Objective: To establish an automatic reduction method for unilateral zygomatic fractures based on Iterative Closes Point (ICP) algorithm.

Material And Methods: 60 patients with unilateral type B zygomatic fractures were included. After acquiring CT images, zygomatic fragments were segmented using self-developed software MICSys.

View Article and Find Full Text PDF

The state-of-the-art approach to open reduction and fixation (ORIF) of zygoma fracture fragments is based on manual skills. Achieving high accuracy can be challenging. Our feasibility study on deceased body donors with artificial zygomatic fractures investigated whether virtual repositioning of the fractures and the use of customised 3D-printed titanium osteosynthesis plates was similar in accuracy to the conventional manual procedure, and whether the method was applicable in a clinical setting.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!