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Jinyong Cho, Jaeyoung Ryu
Blow-in fracture of the zygomaticomaxillary complex that was displaced into the orbital cavity could be associated with ophthalmologic injuries, ranging from visual acuity to ocular motility limitation. Appropriate reduction and realignment of the fractured bone is necessary as early as possible for recovery of function and esthetics. However, limitation of accessibility and visibility makes it difficult for delicate surgery and increases the risk of damage of adjacent anatomic structures, such as optic nerve and extraocular muscles...
October 14, 2016: Journal of Craniofacial Surgery
Ritesh Kumar, Syed Saeed Ahmed, Gulam Sarwar Hashmi, Md Kalim Ansari, Sajjad Abdur Rahman
AIM: The present study was planned to investigate the etiology of injuries and to analyze correlation between clinical and radiological findings in cases of craniomaxillofacial trauma. STUDY DESIGN: An 18 months cross-sectional study was done and 325 patients with maxillofacial fractures were analyzed from January 2013 to June 2014 who reported to the department of oral and maxillofacial surgery, Aligarh, Uttar Pradesh. Data was recorded in a preformed case sheet which included: patient's demographic data, cause of injury, type of injury, treatment plan...
September 2016: Journal of Maxillofacial and Oral Surgery
Wouter M M T van Hout, Ellen M Van Cann, Ronald Koole, Antoine J W P Rosenberg
: This study investigates treatment outcome in zygomaticomaxillary complex (ZMC) fracture repair. METHODS: The medical records and CT-images of patients that received treatment for a unilateral ZMC fracture in 2005-2011 were studied. ZMC fractures were categorised as incomplete (type A), tetrapod (type B) or comminuted (type C). The incidence of sequelae, wound infection and secondary surgical interventions was analysed per fracture category. RESULTS: A total of 153 patients were treated in the selected period...
September 13, 2016: Journal of Cranio-maxillo-facial Surgery
Daniel D Lee, Tyler Kenning, Carlos D Pinheiro-Neto
The osteotemporoparietal fascia flap (OTPFF) has been used for bony defects, especially on the maxilla and orbital floor. However, there are limited reports about the reconstruction of the zygoma. We report the use of composite OTPFF for reconstruction of zygomaticomaxillary complex. The patient had undergone zygomaticomaxillary complex reconstruction with composite OTPFF because of the resection of recurrent postradiation tumor. Extratemporoparietal fascia was harvested and rotated to cover the medullary surface of the bone flap...
August 2016: Plastic and Reconstructive Surgery. Global Open
Jean-Pierre T F Ho, Ruud Schreurs, Dan M J Milstein, Leander Dubois, Thomas J J Maal, Jan de Lange, Alfred G Becking
OBJECTIVE: The study aim was to validate a new method for measuring zygomaticomaxillary complex (ZMC) symmetry, which can be helpful in analyzing ZMC fractures. METHODS: Three-dimensional virtual hard-tissue models were reconstructed from computed tomography (CT) datasets of 26 healthy individuals. Models were mirrored and superimposed. Absolute average distance (AD) and 90th percentile distance (NPD) were used to measure overall and maximal symmetry. The Intraclass Correlation Coefficient (ICC) was calculated to measure interobserver consistency...
August 6, 2016: Journal of Cranio-maxillo-facial Surgery
Erica Kristen Ludi, Saurabh Rohatgi, Matthew E Zygmont, Faisal Khosa, Tarek N Hanna
OBJECTIVE: The objective of the present study is to examine the concordance of facial fracture classifications in patients with trauma who underwent surgery and to assess the epidemiologic findings associated with facial trauma. MATERIALS AND METHODS: Patients with trauma who underwent facial CT examination and inpatient operative intervention during a 1-year period were retrospectively analyzed. Patient demographic characteristics, the mechanism of injury, the radiology report, the surgical diagnosis, and clinical indications were reviewed...
November 2016: AJR. American Journal of Roentgenology
Srimathi Panchanathan, Maya Saranathan, Arun Kumar Kamalakaran, Karthikeyan Duraisamy
AIMS: The purpose of this study is to functionally evaluate the behavior of the masticatory muscles (masseter and temporalis) following zygomaticomaxillary complex (ZMC) fractures by assessing bite force, electromyography (EMG), and mandibular movements. MATERIALS AND METHODS: Group I consisted of 20 patients with unilateral ZMC fractures who were treated surgically with one-, two-, or three-point fixations at the frontozygomatic, infraorbital, or zygomaticomaxillary buttress region as per clinical and radiological assessments...
2016: Journal of Contemporary Dental Practice
X Han, H Lu, S Li, Y Xu, N Zhao, Y Xu, W Zhao
OBJECTIVES: To evaluate and compare the cellular morphologic changes and proliferating cell nuclear antigen (PCNA) expression within craniofacial sutures in growing Rhesus monkeys treated with a Class III functional appliance. MATERIALS AND METHODS: Six Rhesus monkeys in the mixed dentition stage were divided into three groups: a 45-day experimental group, a 90-day experimental group, and a control group. Monkeys in the experimental groups were fitted with a Class III magnetic twin-block appliance...
July 13, 2016: Orthodontics & Craniofacial Research
William K Erly, Jennifer L Becker, Radha Inampudi, Seung John Hur, Kambiz Nael, Wayne S Kubal
BACKGROUND AND PURPOSE: Segmental, depressed fractures of the posterolateral maxillary sinus may occur as a result of trauma to the masticator space, previously described in association with mandibular fractures. The authors hypothesize that the fracture is due to a transient increase in pressure in the masticator space (blow out) and therefore should be seen in association with other regional fractures. MATERIALS AND METHODS: Injuries of the masticator space were retrospectively identified by searching the imaging database from January 2014 to November 2014 for keywords that would identify regional trauma...
October 2016: Emergency Radiology
Antonio Cortese, Mario Caggiano, Franco Carlino, Giuseppe Pantaleo
INTRODUCTION: The zygomaticomaxillary complex, with its intrinsically prominent convexity, is highly vulnerable to injury. In this study, we evaluated a novel combined approach to the reduction and stabilization of frontozygomatic dislocated fractures without aesthetic damage. MATERIALS AND METHODS: Ten patients (mean age, 52 years) were referred for complex frontozygomatic dislocated fractures. Five patients underwent a transconjunctival approach without canthotomy in association with a transoral maxillary approach and lateral-rim skin incision, also without canthotomy...
September 2016: International Journal of Surgery
Rodolfo E Manosalva, Damian Dyckman, Jonathan M Melzer
Facial nerve paralysis is a devastating complication which can occur after a variety of otolaryngic procedures, including facial trauma repair. The frontal and marginal branches are most often placed at risk. However, facial nerve paralysis is not typically described as a risk in most uncomplicated facial trauma repairs of the zygomaticomaxillary complex (ZMC). In particular, buccal branch injury has not been described in a delayed setting following repair of the ZMC. The authors present a patient of delayed buccal branch paralysis following a simple ZMC repair which has not been previously reported...
June 2016: Journal of Craniofacial Surgery
Michael Alperovich, Jordan D Frey, Matthew B Potts, Howard A Riina, David A Staffenberg
The subspecialty of craniofacial surgery emphasizes skeletal exposure, preservation of critical structures, and provision of a superior cosmetic result. In recent decades, an emphasis on minimally invasive neurosurgical exposure has paved the way for increased collaboration between neurosurgeons and craniofacial surgeons.The 1990s saw the growing popularity of an eyebrow incision for orbital roof craniotomies in neurosurgery to address lesions in the anterior skull base. Disadvantages of this approach included conspicuous scarring above the brow skin, risk of injury to the frontal branch of the facial nerve, and numbness from supraorbital or supratrochlear nerve transection...
June 2016: Journal of Craniofacial Surgery
Chang Heon Hwang, Myung Chul Lee
BACKGROUND: Broad or excessive malar protrusion is a trait associated with aggression and old age in Asian cultures. Although various methods of shifting the zygoma have been introduced for reduction malarplasty, soft tissue sagging and inadequate bony union still remain great challenges. We have devised an arch-lifting technique that helps overcome these issues. An analysis of surgical outcomes is presented herein. METHODS: A total of 54 patients subjected to lifting malar reductions between January 2013 and November 2014 were retrospectively reviewed...
June 2016: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
Vadim Grechushkin, Konstantin Boroda, Ammar Chaudhry, Jason Eisenberg
In 1997, Lambert and colleagues demonstrated that the absence of sinus fluid on head CT essentially excludes a fracture involving the sinus walls. Our purpose is to reevaluate this association utilizing the current standard of imaging technology. With improved image resolution, we aim to reassess whether the sensitivity and specificity of the "clear sinus sign" are improved or worsened. Furthermore, the current standard of care is to obtain a CT of the facial bones along with a head CT when facial trauma is suspected, so we also analyzed the association of the "clear sinus sign" with nasal bone and mandible fractures...
2016: Curēus
Gustavo Halak Oliveira-Campos, Leandro Lauriti, Marcos Kazuo Yamamoto, Rubens Camino Júnior, João Gualberto C Luz
PURPOSE: To assess the trends in Le Fort (maxillary) fractures in patients seen at a South American trauma care center based on the characteristics and management of these. MATERIALS AND METHODS: Of all patients with facial fractures seen at a trauma hospital during a six-year period, 50 (6.6 %) presented with Le Fort fractures. Medical charts were reviewed for characteristics presented and management performed. To improve the analyses, computed tomography and intraoperative findings were used...
March 2016: Journal of Maxillofacial and Oral Surgery
Shih-Hsuan Mao, Yu-Hsuan Hsieh, Pang-Yun Chou, Victor Bong-Hang Shyu, Chien-Tzung Chen, Chih-Hao Chen
BACKGROUND: The zygomaticomaxillary complex (ZMC) is frequently involved in craniofacial fractures. We propose an objective approach for defining the ZMC position on skeletal and soft tissue by using Amira to process 3-dimensional (3D) facial computed tomography (CT) images. AIM AND OBJECTIVES: In this study, we aim to propose 1 anthropometric system, facilitated based on CT images, which can be used in quantitative analysis of ZMC position and examine the symmetry of skeletal and soft tissue of the ZMC with high reliability and validity...
March 2016: Annals of Plastic Surgery
Kyung-Pil Park, Seong-Un Lim, Jeong-Hwan Kim, Won-Bae Chun, Dong-Whan Shin, Jun-Young Kim, Ho Lee
OBJECTIVES: The facial bones are the most noticeable area in the human body, and facial injuries can cause significant functional, aesthetic, and psychological complications. Continuous study of the patterns of facial bone fractures and changes in trends is helpful in the prevention and treatment of maxillofacial fractures. The purpose of the current clinico-statistical study is to investigate the pattern of facial fractures over a 4-year period. MATERIALS AND METHODS: A retrospective analysis of 1,824 fracture sites was carried out in 1,284 patients admitted to SMG-SNU Boramae Medical Center for facial bone fracture from January 2010 to December 2013...
December 2015: Journal of the Korean Association of Oral and Maxillofacial Surgeons
Taewoon Yoon, Youngwoong Choi, Jaeyoung Cho, Youngjoon Kim, Sanghyun Nam
PURPOSE: The frequency of zygomaticomaxillary fracture is second only to nasal bone fracture. Up to 30% to 80% of zygomaticomaxillary fracture patients complain of sensory disturbance results from infraorbital nerve injury. The objective of this study was to detect what factors are related to infraorbital nerve recovery and specifically to investigate decompression of infraorbital foramen improves sensory recovery. PATIENTS AND METHODS: A total of 257 patients were assessed with unilateral zygomaticomaxillary complex fracture, treated with open reduction and internal fixation with orbital floor reconstruction...
January 2016: Journal of Craniofacial Surgery
G C Rajkumar, D P Ashwin, Rohit Singh, R Prashanth, K B Rudresh
AIM: The aim of this study is retrospective analysis of ocular injuries after maxillofacial trauma reporting to the Department of Oral and Maxillofacial Surgery at V.S. Dental College and Kempegowda Institute of Medical Sciences and Hospital, Bangalore. STUDY DESIGN: A retrospective analysis of ocular injuries following facial trauma from 2008 to 2013. RESULTS: Road traffic incident was the most common etiology (55.46 %). Zygomaticomaxillary complex fracture was the most common fracture associated with ocular injuries (67...
December 2015: Journal of Maxillofacial and Oral Surgery
Jiapeng Yin, Lixin Liao, Lin Lu, Haizhou Tong, Xiangyu Zhang, Zhenmin Zhao
Trans-sutural distraction osteogenesis (TSDO) has been successfully used to correct midfacial hypoplasia in growing patients for years. The effects of TSDO, however, remain difficult to predict in adult patients. The aim of this study was to determine the biologic basis for the age-related increase in difficulty of performing TSDO. A total of 45 male Sprague Dawley (SD) rats were obtained in 3 age groups: 4 weeks old (4W, N = 15), 3 months old (3M, N = 15), and 13 months old (13M, N = 15). The zygomaticomaxillary sutures (ZMS) were dissected, and their morphology was evaluated by histology and micro-computed tomography (micro-CT)...
October 2015: Journal of Craniofacial Surgery
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