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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
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
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
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
K Rajkumar, P Mukhopadhyay, Ramen Sinha, T K Bandyopadhyay
PURPOSE: The purpose of this study was to clinically and radiologically evaluate reduction and fixation of isolated zygomatic complex (ZMC) fractures treated by Y modification of the transconjunctival approach. PATIENTS AND METHODS: A prospective evaluation of ten patients was undertaken for a period of 6 months using this modified approach from Jan 2012 to Jun 2013. Patients were examined preoperatively and post operatively at the end of 6 months for symmetry discrepancies involving A-P globe projection, lateral canthal level, malar projection and diplopia in direct and extreme gazes...
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
Susmitha Rajmohan, David Tauro, Bhupesh Bagulkar, Anuj Vyas
AIMS: The coronal incision with its various modifications provides the most versatile approach to various areas in the craniomaxillofacial region coupled with excellent exposure. The aesthetic advantage of a hidden scar in the hairline, accounts for its continued popularity. The aim of this study was to review the surgical anatomy, technique and problems of post-operative morbidity pertinent to coronal approach in various clinical situations such as craniofacial trauma, tumour resections and reconstructive craniofacial procedures...
August 2015: Journal of Clinical and Diagnostic Research: JCDR
Mansher Singh, Joseph A Ricci, Edward J Caterson
BACKGROUND: In patients with panfacial fractures and distorted anatomic landmarks of zygomatic and orbital complex, there is a risk of zygomaticomaxillary complex (ZMC) malpositioning even with the best efforts for surgical repair. This results in increased number of additional procedures to achieve accurate positioning. METHODS: We describe the usage of intraoperative C-arm cone-beam computed tomographic (CT) scan for ZMC malpositioning in a representative patient with panfacial fractures...
July 2015: Plastic and Reconstructive Surgery. Global Open
Chao-Chih Yang, Chih-Jaan Tai, Sou-Hsin Chien, Cheng-Li Lin, Shih-Ni Chang, Fung-Chang Sung, Chi-Jung Chung, Chia-Hung Kao
PURPOSE: Investigate the risk of ear-associated diseases after zygomaticomaxillary complex (ZMC) fracture in a population-based retrospective cohort study. MATERIALS AND METHODS: This is a retrospective cohort study using Taiwan's National Health Insurance Research Database of reimbursement claims. A total of 1,330 ZMC fracture patients and 5,320 non-ZMC fracture participants were included and newly developed ear-associated disease data were collected. A Poisson regression and multivariate Cox proportion hazard regression were used for data analysis...
September 2015: Journal of Maxillofacial and Oral Surgery
Rohit Sharma, Naveen Chhabra, Parveen Sharma, Shruti Chhabra
PURPOSE: To study effects of zygomatico maxillary fractures and fracture reduction on intra ocular pressure (IOP). MATERIALS AND METHODS: IOPs of 20 patients with unilateral zygomatico-maxillary complex (ZMC) fractures (divided into 2 groups of 10 undisplaced, 10 displaced) were measured at various time intervals. The relationship between IOPs between the two groups at various time intervals was recorded and evaluated using independent T-tests. RESULTS: 20 subjects were divided into two equal groups (10 each of displaced and undisplaced fractures)...
June 2015: Journal of Maxillofacial and Oral Surgery
K Balakrishnan, Vijay Ebenezer, Abu Dakir, Saravana Kumar, D Prakash
The zygomaticomaxillary complex (ZMC) plays a key role in the structure, function, and esthetic appearance of the facial skeleton. They can account for approximately 40% of mid-face fractures. They are the second most common facial bone fracture after nasal bone injuries. The fracture complex results from a direct blow to the malar eminence and results in three distinct fracture components that disrupt the anchoring of the zygoma. In addition, the fracture components may result in impingement of the temporalis muscle, trismus (difficulty with mastication) and may compromise the infraorbital foramen/nerve resulting in hypesthesia within its sensory distribution...
April 2015: Journal of Pharmacy & Bioallied Sciences
Mohammad Waheed El-Anwar, Ezzeddin Elsheikh, Ahmed Hassan Sweed, Nillie Ezzeldin
OBJECTIVE: The aim of this study was to assess the activity of the masseter and temporalis muscles using surface electromyography (EMG) in patients with zygomaticomaxillary complex (ZMC) fractures. PATIENTS AND METHODS: This prospective study was carried out on 25 patients who had ZMC fractures. Fifteen patients were managed by open reduction and rigid fixation (ORIF) using titanium miniplates. This study, using surface electromyography, analyzed the activity of the masseter and temporalis muscles of 25 patients with ZMC fractures; 15 of them were surgically treated under general anesthesia (GA)...
December 2015: Oral and Maxillofacial Surgery
Xi Gong, Ying He, Yang He, Jin-gang An, Yao Yang, Yi Zhang
PURPOSE: To improve the clinical evaluation of the symmetry of the zygomatic complex (ZMC), the authors developed a new method to measure the eminence and width of the ZMC using 3-dimensional (3D) computed tomography (CT). The accuracy and reproducibility of the ZMC symmetry evaluation using this method were investigated. MATERIALS AND METHODS: Spiral CT was carried out in 50 volunteers with visually symmetric faces. Based on an exact craniofacial midsagittal plane, a 3D coordinate system was constructed and used to measure the eminence and width of the ZMC...
October 2014: Journal of Oral and Maxillofacial Surgery
Wouter M M T van Hout, Ellen M Van Cann, Marvick S M Muradin, Michaël H Frank, Ronald Koole
INTRODUCTION: Intraoperative imaging seems to be the next step to improve surgical outcome in the treatment of zygomaticomaxillary complex (ZMC) fractures. Many publications have appeared on intraoperative imaging for trauma surgery, but in most hospitals intraoperative imaging is not routinely performed for ZMC fracture repair. The goal of this review was to assess the value of intraoperative imaging in ZMC fracture repair. MATERIAL AND METHODS: The literature was reviewed with focus on the effects of intraoperative imaging on facial symmetry, fracture reduction and the frequency of additional reduction after intraoperative imaging in ZMC fractures...
December 2014: Journal of Cranio-maxillo-facial Surgery
Dong Hyuck Kim, Rae Hyong Kim, Jun Lee, Young Deok Chee, Kyung Hwan Kwon, Kyoung-Hwan Kwon
OBJECTIVES: In this study, we assessed soft tissue asymmetry that occurred after open reduction of unilateral zygomaticomaxillary complex (ZMC) fractures. We proposed a simple method to assess soft tissue asymmetry after reduction surgery by evaluating the symmetry between the affected and the unaffected sides. The factors affecting soft tissue contour after surgery were also analyzed. MATERIALS AND METHODS: Subjects included patients admitted to Wonkwang University Dental Hospital from 2008 to 2013...
June 2014: Journal of the Korean Association of Oral and Maxillofacial Surgeons
Seung Han Song, Hyunwoo Kyung, Sang-Ha Oh, Nakheon Kang
BACKGROUND: Zygomaticomaxillary complex (ZMC) fracture occurs commonly, and restorations of facial shape and symmetry by 3-dimensional reduction and ridged fixation are important. A severe ZMC fracture is accompanied by fractures to the anterior wall of maxillary sinus; thus, various complications can occur without appropriate restoration by surgery. METHOD: Of the patients with ZMC fracture from January 2008 to December 2012, 328 patients underwent surgery. Among them, 234 patients with severe fractures to the anterior wall of the maxillary sinus underwent restoration using fibrin glue (Tisseel; Baxter Healthcare, Norfolk, UK)...
May 2014: Journal of Craniofacial Surgery
Assad Abbas, Iffat Batool Syed, Hasnain Abbas, Iram Abbas
OBJECTIVE: The purpose of this study was to compare the outcome of wire osteosynthesis with bone plating in the management of zygomatic complex (ZMC) fractures. The rationale was to enable the oral and maxillofacial surgeon to select either of the treatment procedure with confidence. METHODS: In this quasi experimental study, Sixty five patients of ZMC fractures were randomly allocated in groups of bone plating and wire osteosynthesis. This was done through envelope draw method...
July 2012: Journal of Ayub Medical College, Abbottabad: JAMC
Rajay A D Kamath, Shiva Bharani, Reshma Hammannavar, Sumit P Ingle, Ankit G Shah
Materials and Methods A 6-year retrospective analysis of 111 patients treated for maxillofacial fractures in Davangere, Karnataka from January 2004 to December 2009 was performed. Variables like age, gender, occupation, type of fracture and mechanism of injury, concomitant injury, mode of treatment, and complications were recorded and assessed. Results Men between 21 and 30 years were mostly affected (male-to-female ratio = 10:1; age range = 17.60 years; mean 31.7 ± 9.8 [standard deviation])...
December 2012: Craniomaxillofacial Trauma & Reconstruction
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