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Marco Esposito, Rubén Davó, Carlos Marti-Pages, Ada Ferrer-Fuertes, Carlo Barausse, Roberto Pistilli, Daniela Rita Ippolito, Pietro Felice
PURPOSE: To compare the clinical outcome of immediately loaded cross-arch maxillary prostheses supported by zygomatic implants vs conventional implants placed in augmented bone. MATERIALS AND METHODS: A total of 71 edentulous patients with severely atrophic maxillas, who did not have sufficient bone volume to place dental implants or when it was possible to place only two implants in the front area (minimal diameter 3.5 mm and length of 8 mm) and less than 4.0 mm of bone height subantrally, were randomised according to a parallel group design...
2018: European Journal of Oral Implantology
Nabeel Alshafai, Rodolfo Maduri, Mrigank Shail, Domenico Chirchiglia, David Meyronet, Francesco Signorelli
Hemangioblastomas (HBLs) are challenging vascular tumours with rare suprasellar location Surgery is recommended in patients with visual impairment, endocrine disorders or hydrocephalus. Surgical removal of pituitary stalk HBLs is challenging due to their location and high vascularity. Our narrative review was guided by the question: "what is the more suitable surgical approach to excise a suprasellar HBL?". Pertinent English literature was scrutinized from database inception to October 2016. Eighteen articles matched our selection criteria...
March 10, 2018: Clinical Neurology and Neurosurgery
Daniele Gibelli, Michaela Cellina, Stefano Gibelli, Antonio Giancarlo Oliva, Giovanni Termine, Valentina Pucciarelli, Claudia Dolci, Chiarella Sforza
PURPOSE: Surgical reconstruction of zygomatic bones in cases of traumatic injuries is a frequent event: assessment of symmetry is mandatory for a correct restoration of zygomatic shape, but the literature is discordant about its quantification. The purpose of this study is to show a novel method for assessing symmetry of zygomatic bone through mirroring of 3D models segmented on CT-scan. MATERIALS AND METHODS: A total of 100 patients (50 male and 50 female), divided into two age groups (18-49 years and 50-92 years) were selected from the computed tomography (CT) scan database of a hospital in northern Italy...
February 22, 2018: Journal of Cranio-maxillo-facial Surgery
I N Hirota, L S Alves, M G Gandolfi, M Félix, J J T Ranzani, C V S Brandão
The objective of this study was to describe the reference values of cranial measurements of capybaras, correlating the ocular orbit with the nasolacrimal duct. The documentation of its results can contribute to standardizing characteristics of anatomical normality and favouring the correct diagnosis and treatment of changes. The capybara carcasses, maintained by freezing, were distributed in two groups (G) designated GA (n = 12) adult animals (A) and GY (n = 13) for young animals (Y). All subjects underwent dacryocystography examination by computed tomography (CT) and cranial measurements...
March 12, 2018: Anatomia, Histologia, Embryologia
Marlen Sulamanidze, George Sulamanidze, Constantin Sulamanidze
INTRODUCTION: The aesthetic manifestations of the aging process in the cheekbone, cheek and infraorbital areas are especially concerning for patients, so rejuvenating interventions in these areas are most in demand. OBJECTIVE: To introduce the experience of our clinic for aesthetic manipulation using Aptos (anti-ptosis) thread lifting methods in the midface area. METHODS: Among the surgical interventions that we used were Aptos thread lifting methods both in combination with lower blepharoplasty, and without it...
March 12, 2018: Aesthetic Plastic Surgery
Anup Singh, David Victor Kumar Irugu, Hitesh Verma, Alok Thakar
Tuberculosis involving mastoid and ear is an uncommon entity presenting with myriads of non-specific features and difficult to diagnose, being a paucibacillary condition. The involvement of otomastoid compartment is hypothesised to be of haematogenous origin. Rarely it can spread directly via tympanic membrane perforation or via reflux through eustachian tube. The usual picture of presentation tends to be one of indolent ear infection not responsive to usual antibiotic treatment and symptomatology being out of proportion to examination findings...
March 9, 2018: BMJ Case Reports
Joe Iwanaga, Filippo Badaloni, Koichi Watanabe, Koh-Ichi Yamaki, Rod J Oskouian, R Shane Tubbs
The zygomaticofacial branch (ZFb) of the zygomatic nerve passes through the lateral wall of the orbit anterolaterally and traverses the zygomaticofacial foramen (ZFFOUT). However, in terms of intraorbital course, only a few studies have focused on the orbital opening of the ZFb (ZFFIN) and related canal. Therefore, this study aimed to locate the orbital opening and exit of the ZFb of the zygomatic nerve. Twenty sides from 10 fresh frozen cadaveric Caucasian heads were used in this study. The vertical distance between inferior margin of the orbit and ZFFIN (V-ZFFIN), the horizontal distance between the lateral margin of the orbit and ZFFIN (H-ZFFIN), diameter of the ZFFIN (D-ZFFIN), the vertical distance between the inferior margin of the orbit and ZFFOUT (V-ZFFOUT), the horizontal distance between the lateral margin of the orbit and ZFFOUT (H-ZFFOUT), and the diameter of the ZFFOUT (D-ZFFOUT) were measured, respectively...
March 8, 2018: Journal of Craniofacial Surgery
Ozcan Cakmak, Berke Özücer, Mustafa Aktekin, Fazil Emre Özkurt, Rami Al-Salman, Ismet Emrah Emre
Background: Inadequate release of retaining ligaments during facelift surgery may lead to an unnatural appearance. However, most facelift surgeons are hesitant in transecting these ligaments to avoid possible injury to facial subbranches. Objectives: In our surgical practice for modified composite flap rhytidectomy we use the finger-assisted malar elevation (FAME) technique in order to enable safe release of the zygomatic cutaneous ligaments through the prezygomatic space under direct vision...
March 2, 2018: Aesthetic Surgery Journal
Mark Krauthammer, Amir Shuster, Daphna Mezad-Koursh, Benjamin Shlomi, Chaim Stolovitch, Igal Leibovitch
Purpose: To demonstrate an unusual case of orbital trauma due to dental surgery complication. Observations: An elderly patient who underwent dental implantation to the zygomatic bone was hospitalized in the ophthalmology department with impaired abduction of her right eye, also evident on ocular examination. Head computed tomography demonstrated damage to the lateral rectus and to the inferior oblique muscles. Clinical assessment determined these muscles could not be repaired and reattached...
April 2017: American Journal of Ophthalmology Case Reports
Ramesh Sharanappa Doddamani, Rajesh Kumar Meena, Selvam Murali Mohan, Neelam Krishnan Venkatramanaa
Trigeminal schwannomas (TSs) are extremely rare tumors in childhood, particularly in the absence of neurofibromatosis. Although multi-staged surgical strategies have been reported in the literature, safe and single stage microsurgical removal is possible. We report a rare case of dumbbell TS, in a 9-year-old girl in whom single stage complete removal was done using fronto-temporo-orbito-zygomatic craniotomy and sub temporal approach.
January 2018: Asian Journal of Neurosurgery
Kun Hwang, Jeongho Choi
The aim of this study is to search for the origin of the term "ligament' in the face, present its status, and suggest a principle to rectify the use of unclear terminology.The structure that connects the zygoma to the skin was first presented by McGregor (1959). Kaye (1981), in describing his "extended facelift," wrote that the adherent area of the cheek over the malar eminence (McGregor's patch) usually requires sharp dissection. Bosse (1987) reported that the zygomatic ligament is quite solidly bound to the malar eminence and usually requires sharp dissection to release it...
February 26, 2018: Journal of Craniofacial Surgery
Georgi Tchernev, Torello Lotti, Ilia Lozev, Georgi Konstantinov Maximov, Uwe Wollina
Periocular malignancies represent between 5% and 10% of all types of skin cancers. The incidence of eyelid (but also the periocular located) malignancies seems to differ in distribution across the continents. The incidence of eyelid tumours (but also the periocular located tumours) in a predominantly white population determined that BCC is the most common malignant periocular eyelid tumour in whites. This finding has been replicated consistently throughout the literature, with BCC representing 85-95% of all eyelid malignancies, SCC representing 3...
January 25, 2018: Open Access Macedonian Journal of Medical Sciences
Graeme E Glass, Clifford F Ruff, Genevieve A J C Crombag, Melanie H A S Verdoorn, Martin Koudstaal, Freida Anguilla, Richard Hayward, Jonathan A Britto, Owase Jeelani, David J Dunaway
Apert syndrome is characterized by hypertelorism, a negative canthal axis, and central midfacial hypoplasia, resulting in a biconcave face. Bipartition distraction partially corrects these facial anomalies. This study investigates limitations of bipartition distraction using linear, angular, and geometric morphometric analysis. Preoperative and postoperative three-dimensional computed tomographic craniofacial constructs of 10 patients with Apert syndrome (aged 12 to 21 years) were annotated with 98 landmarks...
March 2018: Plastic and Reconstructive Surgery
Liyun Bai, Linlin Li, Kexin Su, Anthony Bleyer, Yuanyuan Zhang, Ping Ji
Maxillofacial injuries can be complex and are clinically important due to their functional and cosmetic significance. Maltreated and missed fractures might cause deformity of the face; thus, accurate evaluation of the fracture provided by X-ray images is critical. In this study, we explore the application of cone-beam computed tomography (CBCT) for diagnosis of severe maxillofacial traumas. A patient with a complex fracture that affects the maxilla, mandible, wall of the maxillary sinus, zygoma, zygomatic arch and nasal bone was diagnosed using 3D reconstruction of CBCT images...
2018: Journal of X-ray Science and Technology
M-S Elarabi, A-B Bataineh
BACKGROUND: The purpose of the present study was to evaluate changing pattern in characteristics of maxillofacial fractures and concomitant injuries in Western Libya During revolution and to assess the association between mechanism of injury and fracture patterns. MATERIAL AND METHODS: A retrospective review of medical records and radiographs of 187 patients treated for maxillofacial fractures from January 2010 to December 2012 was performed, there were 326 fractures in 187 patients...
February 24, 2018: Medicina Oral, Patología Oral y Cirugía Bucal
Byung Jun Kim, Yinglan Piao, Maierdanjiang Wufuer, Woo-Chan Son, Tae Hyun Choi
PURPOSE: A biodegradable magnesium alloy system has been developed as a substitute for conventional plates and screws made of titanium or absorbable polymer. However, previous studies were limited to small animal experiments using screws or wires. In the present study, we preliminarily evaluated the biocompatibility and effectiveness of human standard-size biodegradable magnesium-based plates and screws in facial fractures of beagles. MATERIALS AND METHODS: Fracture lines were created bilaterally in the zygomatic arches of 6 beagles...
February 2, 2018: Journal of Oral and Maxillofacial Surgery
Arzu Türkseven, Derya Özçelik, Mert Çaliş, Hakan Hamdi Celik, Fahri Yilmaz, Ömer Önbaş, Alper Vatansever, Gaye Toplu
INTRODUCTION: This study investigated the effect of periosteal graft + platelet-rich plasma (PRP) combination on facial bone defect healing. METHODS: Five-millimeter critical sized defects in zygomatic arches of 12 adult New Zealand rabbits were created. Rabbits were randomly divided into 3 groups: First group (control group): bone defects of left zygomatic arches of 6 rabbits were wrapped with a silicone tube. Second group (periosteal graft group): bone defects of left zygomatic arches of 6 rabbits were wrapped with periosteal graft...
February 12, 2018: Journal of Craniofacial Surgery
Neil Saez, Giriraj K Sharma, Christian H Barnes, Yuxin Lu, Frank P Hsu, Kevin C Huoh, Hamid R Djalilian, Harrison W Lin
OBJECTIVES: Aneurysmal bone cysts (ABC) are benign, rapidly growing osteolytic lesions. Solid variant of ABC (SVABC) is a rare subtype of ABC that has not been reported in the temporal bone. METHODS: We report the case of a 6-year-old boy presenting with a slowly enlarging bony protuberance over the right zygomatic/malar eminence region. Computed tomography and magnetic resonance imaging demonstrated a 2.6 × 5.8 × 5.1 cm temporal bone mass involving the right mastoid, petrous, and temporal squamosal calvarium, with extradural intracranial extension to the middle cranial fossa...
February 1, 2018: Annals of Otology, Rhinology, and Laryngology
Z W Chen, J B Ma, K Y Xie, B Huang, M Yao, Y Fei, L Zhang
Objective: To investigate the relations of foramen rotundum structure direction and surrounding structure systematically in order to choose the best approach of percutaneous puncturing of radiofrequency thermocoagulation for treating V2 of primary trigeminal neuralgia. Methods: A total of 122 patients with V2 of primary trigeminal neuralgia for radiofrequency thermocoagulation were enrolled from August 2012 to May 2017 at the First Hospital of Jiaxing. CT scan images were observed retrospectively, to find the inside and outside of the foramen rotundum...
February 6, 2018: Zhonghua Yi Xue za Zhi [Chinese medical journal]
Christopher J Percival, Rebecca Green, Charles C Roseman, Daniel M Gatti, Judith L Morgan, Stephen A Murray, Leah Rae Donahue, Jessica M Mayeux, K Michael Pollard, Kunjie Hua, Daniel Pomp, Ralph Marcucio, Benedikt Hallgrímsson
Background: Previous analysis suggested that the relative contribution of individual bones to regional skull lengths differ between inbred mouse strains. If the negative correlation of adjacent bone lengths is associated with genetic variation in a heterogeneous population, it would be an example of negative pleiotropy, which occurs when a genetic factor leads to opposite effects in two phenotypes. Confirming negative pleiotropy and determining its basis may reveal important information about the maintenance of overall skull integration and developmental constraint on skull morphology...
2018: EvoDevo
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