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https://www.readbyqxmd.com/read/29238374/zygoma-implants-in-oral-rehabilitation-a-review-of-28-cases
#1
Rowland Agbara, Elizabeth Goetze, Felix Koch, Wilfred Wagner
Background: The functional and esthetic rehabilitation of patients with atrophic maxilla or posterior maxillary defect is often challenging. The aim of this study was to determine patient demographics, indications, success rate, and complications following the use of zygoma implants. Materials and Methods: All patients who had zygoma implant placement in our clinic between 1998 and 2013 were retrospectively assessed for implant outcome. Data were analyzed using Statistical Package for the Social Sciences (SPSS) version 16 and Microsoft Excel 2007 test for significance (ρ) using Pearson's Chi-square (χ2) set at 0...
November 2017: Dental Research Journal
https://www.readbyqxmd.com/read/29232204/the-zygoma-and-the-symphysis-new-extra-alveolar-sites-for-long-mini-implants
#2
Carlos Villegas, Niloufar Azami, Ravindra Nanda, Flavio A Uribe
No abstract text is available yet for this article.
October 2017: Journal of Clinical Orthodontics: JCO
https://www.readbyqxmd.com/read/29218292/primary-one-stage-reconstruction-in-complex-facial-avulsion-injury
#3
Abhishek Ghosh
Complex facial injuries with soft tissue degloving and bony avulsion are very devastating to the patient. Partial degloving injuries are described but hemifacial degloving with zygoma avulsion are rare. The author presents a case of post-traumatic degloving of the left upper lip, nose, part of forehead, upper and lower eyelids and cheek with avulsion of the left zygoma. The management included immediate resuscitation and early surgery to reposition the skeletal as well as soft tissue avulsion. The wound was thoroughly washed and primary repositioning and fixation were done...
September 2017: World Journal of Plastic Surgery
https://www.readbyqxmd.com/read/29195237/secondary-repair-of-the-zygoma
#4
Susannah Orzell, Susan Yanik, Sherard A Tatum
No abstract text is available yet for this article.
December 2017: Facial Plastic Surgery: FPS
https://www.readbyqxmd.com/read/29138975/distal-transsylvian-keyhole-approach-for-unruptured-anterior-circulation-small-aneurysms
#5
Ririko Takeda, Hiroki Kurita
BACKGROUND: To reduce complications associated with conventional pterional craniotomy, a transsylvian keyhole approach for unruptured small anterior circulation aneurysms is proposed. METHODS: A 7-cm linear scalp incision is made along the hairline, beginning at the zygoma, followed by minimal temporal muscle dissection. Two burr holes are drilled out at McCarty's point and the temporal bone, and a 3-cm equilateral triangle bone flap is made, whose apex is located above the sylvian point...
November 14, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29122337/study-of-anatomical-variations-of-the-zygomaticofacial-foramen-and-calculation-of-reliable-reference-points-for-operation
#6
A Ferro, S Basyuni, C Brassett, V Santhanam
Dissection on to the facial aspect of the zygoma is common in procedures of the midface for trauma, craniofacial deformity, and cosmesis. These procedures carry the risk of injury to the neurovascular structures that exit from the zygomaticofacial foramen (ZFF). The purpose of this study was to map the ZFF, and to establish reliable reference points from which to identify it before and during operation. We also aimed to compare the anatomy of the ZFF between sexes and among geographical populations. A total of 429 adult skulls from nine geographical sites were used...
November 6, 2017: British Journal of Oral & Maxillofacial Surgery
https://www.readbyqxmd.com/read/29107123/use-of-buccal-fat-pads-to-prevent-vestibular-gingival-recession-of-zygomatic-implants
#7
P Guennal, J Guiol
Zygomatic implants can be used for dental rehabilitation in atrophic maxillae. This allows for maxillary grafts to be avoided while also permitting immediate functional use. Initially, the implants had a palatal emergence. The surgical technique has undergone continuous development and the implants are now sometimes extra-maxillary in order to better match with the prosthetic space. The main risk is vestibular exposure of the implant as a gingival recession caused by mucositis or peri-implantitis. When the first patients exhibited this problem, the authors sought a solution in order to prevent this complication from occurring...
November 3, 2017: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28968332/management-of-zygomatic-fixture-complication-case-using-extra-short-implants
#8
Guilherme Bertolotti Benatto, Cleuber Rodrigo de Souza Bueno, Victor Prado Curvêllo, Hugo Nary Filho
The oral rehabilitation of a patient with atrophic maxilla is one of the main challenges in implant-supported rehabilitations. The implant placement in the posterior region of the maxilla is limited by a deficiency of bone quantity and quality, besides the anatomic restriction of the maxillary sinus. The use of zygoma fixtures, anchoraged in the zygomatic bone, is a useful technique to enable the full arch rehabilitation. However, complications related to this procedure bring a lot of difficulty in solving...
November 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28961964/deep-temporal-nerve-transfer-for-facial-reanimation-anatomic-dissections-and-surgical-case-report
#9
Mark A Mahan, Walavan Sivakumar, David Weingarten, Justin M Brown
BACKGROUND: Facial nerve palsy is a disabling condition that may arise from a variety of injuries or insults and may occur at any point along the nerve or its intracerebral origin. OBJECTIVE: To examine the use of the deep temporal branches of the motor division of the trigeminal nerve for neural reconstruction of the temporal branches of the facial nerve for restoration of active blink and periorbital facial expression. METHODS: Formalin-fixed human cadaver hemifaces were dissected to identify landmarks for the deep temporal branches and the tension-free coaptation lengths...
September 8, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28941510/issues-in-pediatric-craniofacial-trauma
#10
REVIEW
Srinivasa R Chandra, Karen S Zemplenyi
Pediatric maxillofacial fractures are rare owing to anatomic differences between juvenile and adult skulls. Children's bone is less calcified, allowing for "greenstick fractures." The overall ratio of cranial to facial volume decreases with age. In children, tooth buds comprise the majority of mandibular volume. The most common pediatric craniomaxillofacial fractures for children ages 0 to 18 years old are mandible, nasal bone, and maxilla and zygoma. Growth potential must be considered when addressing pediatric trauma and often a less-is-more approach is best when considering open versus closed treatment...
November 2017: Facial Plastic Surgery Clinics of North America
https://www.readbyqxmd.com/read/28913285/surgical-methods-of-zygomaticomaxillary-complex-fracture
#11
So Young Ji, Seung Soo Kim, Moo Hyun Kim, Wan Suk Yang
BACKGROUND: Zygoma is a major buttress of the midfacial skeleton, which is frequently injured because of its prominent location. Zygoma fractures are classified according to Knight and North based on the direction of anatomic displacement and the pattern created by the fracture. In zygomaticomaxillary complex (ZMC) fracture many incisions (lateral eyebrow, lateral upper blepharoplasty, transconjunctival, subciliary, subtarsal, intraoral, direct percutaneous approach) are useful. We reviewed various approaches for the treatment of ZMC fractures and discussed about incisions and fixation methods...
December 2016: Archives of Craniofacial Surgery
https://www.readbyqxmd.com/read/28911958/application-of-real-time-surgical-navigation-for-zygomatic-implant-insertion-in-patients-with-severely-atrophic-maxilla
#12
Feng Wang, Michael M Bornstein, Kuofeng Hung, Shengchi Fan, Xiaojun Chen, Wei Huang, Yiqun Wu
PURPOSE: Computer-aided treatment technology has extended its applications to oral implantology. This report describes the authors' initial clinical experience on the application of a commercially available navigation system (VectorVision) in zygomatic implant (ZI) insertion in the severely atrophic maxilla. MATERIALS AND METHODS: This was a retrospective longitudinal study. Eligible patients with maxillary edentulism who were treated with ZI placement were enrolled...
August 24, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28863913/bone-anchored-maxillary-protraction-therapy-in-patients-with-unilateral-complete-cleft-lip-and-palate-3-dimensional-assessment-of-maxillary-effects
#13
Marília Yatabe, Daniela Gamba Garib, Renato André de Souza Faco, Hugo de Clerck, Guilherme Janson, Tung Nguyen, Lucia Helena Soares Cevidanes, Antonio Carlos Ruellas
INTRODUCTION: The aim of this study was to 3-dimensionally assess the treatment outcomes of bone-anchored maxillary protraction (BAMP) in patients with unilateral cleft lip and palate. METHODS: The cleft group comprised 24 patients with unilateral cleft lip and palate and Class III malocclusion with mean initial and final ages of 11.8 and 13.2 years, respectively. The noncleft group comprised 24 noncleft patients with Class III malocclusion with mean initial and final ages of 11...
September 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28852667/long-lasting-chondromyxoid-fibroma-of-the-zygoma-a-rare-case-report-and-review-of-literature
#14
Mohammad Javad Ashraf, Negar Azarpira, Navid Omidifar, Bijan Khademi
Chondromyxoid fibroma (CMF) is a benign tumor which usually occurs in skeletal long bones. Its presence in zygoma is extremely rare. The patient was a 47-year-old female, with chief complaint of painful swelling in the left side of zygoma since 1 month ago after a long-lasting painless swelling for about 15 years. Computed tomography scan showed an osteolytic lesion, in the body of left zygomatic bone with lobulated and well-demarcated margins. During surgery, the mass was completely excised and the histological feature of the tumor was in favor of CMF...
2017: Journal of Education and Health Promotion
https://www.readbyqxmd.com/read/28838108/the-infrazygomatic-segment-of-the-superficial-temporal-artery-anatomy-and-technique-for-harvesting-a-better-interposition-graft
#15
Ali Tayebi Meybodi, Michael T Lawton, Ivan El-Sayed, Jason Davies, Halima Tabani, Xuequan Feng, Arnau Benet
BACKGROUND: The superficial temporal artery (STA) is underutilized as an interposition graft because current techniques expose and harvest STA above the level of the zygoma. This technique yields a diminutive arterial segment in both length and diameter, which limits its use for extracranial-intracranial bypass. OBJECTIVE: To introduce a safe and efficient technique for harvesting of the infrazygomatic segment of the STA. METHODS: Scalp layers, STA, and the facial nerve were studied in 18 specimens...
August 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28834709/correlations-between-blood-perfusion-and-dermal-thickness-in-different-skin-areas-of-systemic-sclerosis-patients
#16
B Ruaro, A Sulli, C Pizzorni, S Paolino, V Smith, E Alessandri, A C Trombetta, J Alsheyyab, M Cutolo
OBJECTIVE: To identify possible correlations between skin blood perfusion (BP) and dermal thickness (DT) in different skin areas of systemic sclerosis (SSc) patients. METHODS: Sixty-two SSc patients, according to 2013 EULAR/ACR criteria, and 62 healthy subjects (CNT) were enrolled. Skin BP was analysed by laser speckle contrast analysis (LASCA) at the level of dorsum of the middle phalanx of the third fingers, dorsal aspect of the hands and zygoma. DT was assessed by both skin high frequency ultrasound (US) and modified Rodnan skin score (mRSS) in the same above reported areas...
August 20, 2017: Microvascular Research
https://www.readbyqxmd.com/read/28828914/the-joint-facial-and-invasive-neck-trauma-j-faint-project-iraq-and-afghanistan-2011-2016
#17
MULTICENTER STUDY
Alexander Lanigan, Brentley Lindsey, Stephen Maturo, Joseph Brennan, Adrienne Laury
Objective Define the number and type of facial and penetrating neck injuries sustained in combat operations in Iraq and Afghanistan from 2011 to 2016. Compare recent injury trends to prior years of modern conflict. Study Design Case series with chart review. Setting Tertiary care hospital. Methods The Joint Theater Trauma Registry (JTTR) was queried for facial and neck injuries from Iraq and Afghanistan from June 2011 to May 2016. Injury patterns, severity, and patient demographics were analyzed and compared to previously published data from combat operations during January 2003 to May 2011...
October 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28805958/large-orbital-defect-reconstruction-in-the-setting-of-globe-sparing-maxillectomy-the-titanium-hammock-and-layered-fibula-technique
#18
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
#19
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
#20
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
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