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https://www.readbyqxmd.com/read/28805958/large-orbital-defect-reconstruction-in-the-setting-of-globe-sparing-maxillectomy-the-titanium-hammock-and-layered-fibula-technique
#1
Samuel J Trosman, Timothy M Haffey, Rafael A Couto, Michael A Fritz
INTRODUCTION: The purpose of our study was to describe a novel technique for reconstruction of orbital defects after maxillectomy using a non-anatomic titanium mesh suspension of orbital contents for both support and volume correction. This construct is then articulated with a layered fibula osteocutaneous free flap that restores orbital rim, zygoma, and maxillary alveolus. We herein present our application of this technique, including refinements over time and long-term outcomes. METHODS: A retrospective review was performed on 12 patients who underwent reconstruction of Brown class III orbitopalatomaxillary defects with extensive orbital involvement (at minimum complete orbital floor and rim absent) with titanium mesh sling and a layered fibula free flap...
August 14, 2017: Microsurgery
https://www.readbyqxmd.com/read/28766912/measurement-of-the-zygomatic-region-for-the-optimal-placement-of-quad-zygomatic-implants
#2
Kuo-Feng Hung, Qi-Yong Ai, Sheng-Chi Fan, Feng Wang, Wei Huang, Yi-Qun Wu
BACKGROUND: The zygomatic implant is suggested to be placed in zygomatic areas with the largest thickness, but regions to obtain the largest bone-to-implant contact (BIC) were unknown. PURPOSE: To identify the zygomatic regions for placing quad zygomatic implants that obtain the largest BIC. MATERIALS AND METHODS: The zygomatic thicknesses of 300 zygomata were measured at total 12 points on the superior, middle, and inferior areas on the 3-dimensional reconstruction images...
August 1, 2017: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/28725523/a-method-of-locating-the-dehiscence-during-middle-fossa-approach-for-superior-semicircular-canal-dehiscence-surgery
#3
Joel S Beckett, Lawrance K Chung, Carlito Lagman, Brittany L Voth, Cheng Hao Jacky Chen, Bilwaj Gaonkar, Quinton Gopen, Isaac Yang
Objectives  Superior semicircular canal dehiscence (SSCD) results from a defect in the middle cranial fossa floor. One challenge during SSCD repair is the lack of a consistent landmark. This study proposes a reference point above the external auditory canal at the level of the zygoma as the inferior craniectomy edge during surgery. Design  This is a retrospective review of patients with SSCD. Setting/Participants  A total of 72 cases of SSCD in 60 patients were repaired via a middle fossa approach at a single institution...
August 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/28710911/a-novel-technique-for-reduction-malarplasty-by-inward-displacement-of-infractured-zygomatic-arch-without-fixation
#4
Qingfeng Li, Bowen Gao, Ke Li, Feng Xie, Hainan Zhu, Liang-Gang Yu
PURPOSE: Reduction malarplasty is one of the most common esthetic surgical procedures performed in the Asian population. Traditional procedures have several complications, such as bone nonunion, malunion, cheek drooping, and damage to the infraorbital nerve and maxillary sinus. Therefore, a more straightforward and effective method of reducing the width of the midface is needed. In this study, we introduce an infracture technique using inward displacement of the zygomatic arch without fixation...
June 24, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28708656/osteoradionecrosis-of-the-zygoma
#5
Zhuo-Jue Liu, Xue-Peng Xiong, Yi-Fang Zhao
Osteoradionecrosis occurs in 4.74% to 37.5% of patients following radiation therapy for head and neck cancer. Osteoradionecrosis mostly happens in the mandible but seldom occurs in other maxillofacial bones. Here, the authors reported a rare case of zygomatic osteoradionecrosis which occurred after maxillectomy and then radiotherapy because of maxillary myoepithelial carcinoma. After resection of zygoma sequestrum, the defect was repaired with forehead flap and healed uneventfully.
July 13, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28690732/maxillofacial-fractures-in-a-budding-teaching-hospital-a-study-of-pattern-of-presentation-and-care
#6
Obitade Sunday Obimakinde, Kolawole Olubunmi Ogundipe, Taopheeq Bamidele Rabiu, Victoria Nwebuni Okoje
INTRODUCTION: Previous reports indicated that there is geographic and sociodemographic variation in the epidemiology of maxillofacial fractures. Audit of maxillofacial injuries managed at any institution is therefore necessary to understand the trends and proffer strategies for prevention. We therefore embarked on this study to determine the pattern of maxillofacial fractures and concomitant injuries in our institution. METHODS: We carried out a retrospective review of information on demography, aetiology and type of maxillofacial fracture, patients' status, type of crash, level of consciousness and concomitant injuries...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28685074/use-of-the-bioactive-resorbable-plate-system-for-zygoma-and-zygomatic-arch-replacement-and-fixation-with-modified-crockett-s-method-for-maxillectomy-a-technical-note
#7
Shintaro Sukegawa, Takahiro Kanno, Akane Shibata, Kenichi Matsumoto, Yuka Sukegawa-Takahashi, Kyousuke Sakaida, Yoshihiko Furuki
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...
July 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28660731/zygomaticomaxillary-suture-maturation-part-ii-the-influence-of-sutural-maturation-on-the-response-to-maxillary-protraction
#8
F Angelieri, A C Ruellas, M S Yatabe, L H S Cevidanes, L Franchi, C Toyama-Hino, H J De Clerck, T Nguyen, J A McNamara
OBJECTIVE: To evaluate the influence of the maturational stages of zygomaticomaxillary sutures (ZMS) on the response to maxillary protraction. SUBJECTS AND METHODS: A total of 40 Class III patients were treated retrospectively with either a combination of rapid maxillary expansion and facial mask (RME/FM) or bone-anchored maxillary protraction (BAMP). The RME/FM group consisted of 18 patients (mean age 8.3 years), while the BAMP group was comprised of 22 patients (mean age 11...
June 29, 2017: Orthodontics & Craniofacial Research
https://www.readbyqxmd.com/read/28658921/an-unusual-radiographic-presentation-of-aneurysmal-bone-cyst-of-the-zygoma-a-rare-case-report
#9
Gv Murali Gopika Manoharan, Priyanka Khobre, Jayaraman Balaji, Mukesh Singh
Aneurysmal Bone Cyst (ABC) is an uncommon benign lesion affecting mainly the long bones and vertebral column. Its occurrence in the maxillofacial skeleton is rare. So far only five cases of ABC in the zygoma have been reported in the literature. Radiographic features of ABC are not pathognomonic. There can be expansion of bone and it may manifest as cystic lesion with honeycomb or soap bubble appearance. There can be perforation or destruction of cortex of the bone as well. Therefore the differential diagnosis of ABC is quite conflicting with other types of maxillary bone lesions...
May 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28655525/ewing-s-sarcoma-of-the-maxillofacial-region-a-case-report
#10
P Rattana-Arpha, K Dhanuthai, P Sutthiprapaporn, K Dhanesuan
Ewing's sarcoma (ES) is an uncommon malignancy, especially in the head and neck region, with only 30 cases reported so far. The mandible is more affected than the maxilla. It represents the most frequent small round cell bone tumor of childhood and adolescence. This report presented a case of 19-year-old male with primary ES in the right side of maxilla, maxillary sinus, zygoma and temporal fossa areas. The clinical, radiographic, histopathologic features and main histopathologic differential diagnosis of ES were reviewed to avoid potential diagnostic pitfalls...
June 24, 2017: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28606439/the-epidemiological-analysis-of-maxillofacial-fractures-in-italy-the-experience-of-a-single-tertiary-center-with-1720-patients
#11
Paola Bonavolontà, Giovanni Dell'aversana Orabona, Vincenzo Abbate, Luigi Angelo Vaira, Carmelo Lo Faro, Marzia Petrocelli, Federica Attanasi, Giacomo De Riu, Giorgio Iaconetta, Luigi Califano
PURPOSE: Maxillofacial fractures represent a serious public health problem. Their epidemiology is extremely variable, and its analysis is crucial to establish effective treatment and prevention of these injuries. However only two works have been published about maxillofacial fracture epidemiology in Italy. MATERIALS AND METHODS: The records of 1720 patients diagnosed with maxillofacial fractures in a 15-years period (2001-2015) in our department were retrospectively reviewed...
May 17, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28599123/intraoperative-imaging-changes-management-in-orbital-fracture-repair
#12
Vedant Borad, Martin S Lacey, David D Hamlar, Harley S Dresner, Girijesh K Yadava, Warren Schubert
PURPOSE: Intraoperative imaging is gaining widespread use in the management of facial fracture repair. The aim of this study was to determine whether intraoperative imaging changes the management of orbital fracture repair. MATERIALS AND METHODS: A retrospective case series was performed of all cases of orbital fracture repair from 2008 to 2015 in which the intraoperative O-arm was used at Regions Hospital (St Paul, MN), a level I trauma center. The primary outcome variable was a change in management, ranging from orbital plate repositioning to proceeding with orbital floor exploration...
May 15, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28588849/acromelia-oligodontia-syndrome
#13
Jyothirmai Talasila, Ramaswamy Pachigolla, Kiranmai V S N Yarlagadda, Ramu Vuppala, Karl-Heinz Grzeschik, Sai Kiran K V S, Catherine M Rose, Gary S Gottesman, Zsolt Urban
This case report describes a patient with ankyloglossia, oligodontia, unilateral hypoplasia of the zygoma and mandible, along with bilateral distal reduction anomalies of his limbs without long bone abnormalities. This may represent a mild variant of oromandibular limb hypogenesis syndrome, expanding the phenotypic spectrum, or a previously unrecognized malformation syndrome.
June 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28555205/conventional-drills-vs-piezoelectric-surgery-preparation-for-placement-of-four-immediately-loaded-zygomatic-oncology-implants-in-edentulous-maxillae-results-from-1-year-split-mouth-randomised-controlled-trial
#14
Marco Esposito, Carlo Barausse, Andrea Balercia, Roberto Pistilli, Daniela Rita Ippolito, Pietro Felice
PURPOSE: To compare the outcome of site preparation for zygomatic oncology implants using conventional preparation with rotary drills or piezoelectric surgery with dedicated inserts for placing two zygomatic implants per zygoma according to a split-mouth design. MATERIALS AND METHODS: Twenty edentulous patients with severely atrophic maxillas not having sufficient bone volume for placing dental implants and less than 4 mm of bone height subantrally had their hemi-maxillas randomised according to a split-mouth design into implant site preparation with conventional rotational drills or piezoelectric surgery...
2017: European Journal of Oral Implantology
https://www.readbyqxmd.com/read/28548998/zygomaticomaxillary-complex-fractures-diagnosis-and-treatment
#15
Nicholas Peretti, Stephen MacLeod
PURPOSE OF REVIEW: To provide an overview of zygomaticomaxillary complex (ZMC) fractures and their treatment. Aspects of anatomy, diagnosis, and treatment objectives of these common fractures will be reviewed including recent literature. RECENT FINDINGS: Advances in technology such as guided surgery have allowed for better outcomes and a reduction in surgeon variability with regard to postoperative results. The use of titanium and bioresorbable mini screws and plates have expanded the ability to achieve stable and predictable results...
August 2017: Current Opinion in Otolaryngology & Head and Neck Surgery
https://www.readbyqxmd.com/read/28540124/relationship-of-the-sinus-anatomy-to-surface-landmarks-is-a-function-of-the-sinus-size-difference-between-the-right-and-left-side-anatomical-study-based-on-ct-angiography
#16
Roy S Hwang, Ryan C Turner, Walid Radwan, Rahul Singh, Brandon Lucke-Wold, Abdul Tarabishy, Sanjay Bhatia
BACKGROUND: Several cadaveric studies demonstrate reliable localization of the transverse sinus and the transverse sigmoid junction (TSJ). These studies use the line drawn from the inion to the posterior root of the zygoma (IZ) and the asterion, respectively. We investigated how the size difference between the right and left transverse sinuses (TS) and sigmoid sinuses (SS) affected the accuracy of their respective superficial landmarks, particularly with regards to where this relationship may result in unsafe and/or complicated surgical access...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28536928/reduction-malarplasty-that-uses-malar-setback-without-resection-of-malar-body-strip
#17
Hae-Won Yang, Jin-Joo Hong, Youn-Taek Koo
BACKGROUND: Various surgical methods have been developed and used to reduce prominent malar bones. The most common reduction malarplasty methods are resection of the bone strip of the malar bone with L-osteotomy or I-osteotomy, followed by setback and fixation. However, these methods could be associated with complications due to the bone strip resection. The present article introduces an effective and safe method that reduces the zygoma without resection of a malar bone strip. METHODS: Through preauricular and intraoral incisions, we performed the current L-osteotomy without resection of the malar bone strip using a reciprocating saw...
May 23, 2017: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/28501387/surgical-treatment-of-isolated-zygomatic-fracture-outcome-comparison-between-titanium-plate-and-bioabsorbable-plate
#18
Chao-Ming Wu, Ying-An Chen, Han-Tsung Liao, Chih-Hao Chen, Chun-Hao Pan, Chien-Tzung Chen
BACKGROUND: Zygoma fracture is of clinical importance because malar prominence plays an essential role in facial appearance. Traditionally, most maxillofacial surgeons perform osteosynthesis with titanium plates and screws for rigid fixation. However, this procedure has certain disadvantages that include the possibility of implant exposure, palpability or loosening of the screws, painful irritation, temperature sensitization, and radiographic artifacts. In this study, we compared the function and satisfaction outcome between Bonamates(®) bioabsorbable implant and Leibinger titanium implant...
May 10, 2017: Asian Journal of Surgery
https://www.readbyqxmd.com/read/28493922/comparison-of-the-long-term-clinical-performance-of-a-biodegradable-and-a-titanium-fixation-system-in-maxillofacial-surgery-a-multicenter-randomized-controlled-trial
#19
B Gareb, N B van Bakelen, G J Buijs, J Jansma, J G A M de Visscher, Th J M Hoppenreijs, J E Bergsma, B van Minnen, B Stegenga, R R M Bos
BACKGROUND: Biodegradable fixation systems could reduce or eliminate problems associated with titanium removal of implants in a second operation. AIM: The aim of this study was to compare the long-term (i.e. >5 years postoperatively) clinical performance of a titanium and a biodegradable system in oral and maxillofacial surgery. MATERIALS AND METHODS: The present multicenter Randomized Controlled Trial (RCT) was performed in four hospitals in the Netherlands...
2017: PloS One
https://www.readbyqxmd.com/read/28476314/the-edinburgh-modification-of-the-minimal-access-zygomatic-osteotomy-used-for-the-correction-of-zygomatic-orbital-hypoplasia
#20
J N Philip, D F Campbell
Zygomatic hypoplasia can be an exceedingly difficult proposition for the surgeon treating facial deformity. The classical approach would be a coronal access, which is time-consuming, leaves a long scar on the scalp that shows in patients with balding patterns, and carries the risk of permanent facial weakness. The Edinburgh technique presents a minimal access approach to the zygomatic osteotomy. This is performed through local incisions and a bone cut made using hand-held diamond-coated wire that mobilizes the entire zygoma...
September 2017: International Journal of Oral and Maxillofacial Surgery
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