Read by QxMD icon Read

orbital reconstruction

Brad T Morrow, William B Albright, Rogerio I Neves, Michael J Wilkinson, Thomas D Samson
BACKGROUND: Congenital anophthalmia is a rare anomaly that results in micro-orbitism and craniofacial microsomia. Treatment with static conformers is labor-intensive and provides minimal stimulation for orbital growth that requires eventual reconstruction with orbital osteotomies after skeletal maturity. METHODS: A protocol for the treatment of congenital anophthalmia is presented. Patients underwent a preoperative low-dose radiation computed tomography (CT) scan of the facial bones to assess orbital volume...
October 2016: Journal of Craniofacial Surgery
Darren Yap, Hannah Fox, Julia Addams-Williams
Neurofibroma is a slow growing benign tumour of the peripheral nerve sheath which is frequently associated with neurofibromatosis type 1 (Prakash et al., 2014). Isolated solitary occurrence of neurofibroma in the maxillary sinus is rare with only 29 reported cases in the literature. We present a rare case of a 70-year-old gentleman who was referred to ENT with a right maxillary sinus neurofibroma with extension into the right inferior orbit. He has significant proptosis, ptosis, and limitation in abduction of the right eye...
2016: Case Reports in Pathology
Ali-Farid Safi, Marie-Theres Richter, Daniel Rothamel, Hans-Joachim Nickenig, Martin Scheer, Joachim Zöller, Matthias Kreppel
INTRODUCTION: One of the most important complications of orbital floor fractures is diplopia and restricted ocular movement. The role of the volume of soft tissue herniation on these clinical symptoms after orbital floor fractures is unclear and potentially may predict development of persistent clinical symptoms. Therefore the aim of this study was to assess pre- and postoperative complications associated to the volume of soft tissue herniation, with special interest to diplopia and bulbus motility impairment...
September 23, 2016: Journal of Cranio-maxillo-facial Surgery
Tae Suk Oh, Woo Shik Jeong, Taik Jin Chang, Kyung S Koh, Jong Woo Choi
BACKGROUND: It is difficult to restore original orbital contours because of their complex 3-dimensional structure. Moreover, slight implant malpositioning can result in enophthalmos or other complications. The authors describe our experience of using individualized prebent titanium-Medpor mesh implants and stereolithographic modeling in a series of patients who underwent orbital wall reconstruction. METHODS: A consecutive series of 104 patients with orbital fractures received computer simulation-designed prebent titanium-Medpor mesh implants insertion...
October 14, 2016: Journal of Craniofacial Surgery
Shao-Rui Liu, Xue-Fei Song, Zheng-Kang Li, Qin Shen, Xian-Qun Fan
OBJECTIVE: With orbital floor fracture incidence rates increasing year by year, many patients require surgical treatment to improve diplopia, limitation of extraocular muscle movement (EOM), enophthalmos, and midface appearance. With the use of high-density polyethylene, titanium screws, titanium plate, and titanium mesh to repair an orbital floor fracture, enophthalmos and midfacial deformity correction procedures have made great progress. However, attenuating diplopia and the limitation of EOM are still difficult problems to prevent...
October 14, 2016: Journal of Craniofacial Surgery
Mansher Singh, Raquel Minasian, Matthew Jackson, E J Caterson
BACKGROUND: Surgical resection of ocular malignancies can result in complex craniofacial defects that can be difficult to reconstruct with conventional reconstruction techniques. Craniofacial prosthesis supported by bone-anchored implants has evolved as a reliable alternative in such scenarios. METHODS: The authors describe a patient who underwent extensive facial resection secondary to squamous cell carcinoma resulting in significant facial deformities. A bone-anchored osseointegrated implant was used to perform facial reconstruction...
October 14, 2016: Journal of Craniofacial Surgery
Degala Sai Krishna, Dey Soumadip
PURPOSE: The main aim of our study was to assess and evaluate the efficacy, long standing outcome and infection of porous polyethylene implants in treatment of orbital floor fractures. PATIENT AND METHODS: Twelve patients with fractures of orbital floor were included in the study. The cause of fracture was road traffic accident, self fall and cow hit respectively. They also complained of enophthalmos (n = 9), diplopia (n = 3), restricted eye movement (n = 2), impairment of infraorbital nerve (n = 3) and dystopia (n = 6)...
September 2016: Journal of Maxillofacial and Oral Surgery
Michelle T Sun, Andrea J O'Connor, John Wood, Robert Casson, Dinesh Selva
PURPOSE: Bioengineering aims to produce functional tissue replacements to repair defects and has been widely investigated over the past few decades. We aimed to review the available literature on the application of tissue engineering in ophthalmology, with a particular focus on ophthalmic plastic surgery and potential applications for eyelid reconstruction. METHODS: A literature search was performed on the MEDLINE database using the keywords "bioengineering," "tissue engineering," and "ophthalmology...
October 5, 2016: Ophthalmic Plastic and Reconstructive Surgery
Lucas Borin Moura, Marisa Aparecida Cabrini Gabrielli, Mario Francisco Real Gabrielli, Valfrido Antonio Pereira Filho
PURPOSE: The goal of orbital reconstruction is to restore anatomy, volume, and function. In extensive orbital floor defects, the visualization of the posterior area is limited through inferior eyelid incisions. The use of endoscope may improve the treatment; however, it is a high-sensitivity technique. The aim of this case series is to describe the combination of inferior eyelid incision with transantral endoscopy for treatment of extensive orbital floor defects. METHODS: Three patients were submitted to orbital reconstruction, and the postoperative CT scans were evaluated to analyze the orbital volume and anteroposterior globe position...
October 14, 2016: Oral and Maxillofacial Surgery
G Fabbris, D Meyers, J Okamoto, J Pelliciari, A S Disa, Y Huang, Z-Y Chen, W B Wu, C T Chen, S Ismail-Beigi, C H Ahn, F J Walker, D J Huang, T Schmitt, M P M Dean
Resonant inelastic x-ray scattering is used to investigate the electronic origin of orbital polarization in nickelate heterostructures taking LaTiO_{3}-LaNiO_{3}-3×(LaAlO_{3}), a system with exceptionally large polarization, as a model system. We find that heterostructuring generates only minor changes in the Ni 3d orbital energy levels, contradicting the often-invoked picture in which changes in orbital energy levels generate orbital polarization. Instead, O K-edge x-ray absorption spectroscopy demonstrates that orbital polarization is caused by an anisotropic reconstruction of the oxygen ligand hole states...
September 30, 2016: Physical Review Letters
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
Jordan J Allensworth, Scott H Troob, Tyler S Weaver, Javier D Gonzalez, Daniel Petrisor, Mark K Wax
OBJECTIVE: Acute invasive fungal sinusitis (AIFS) is a frequently fatal infection for which extensive and debilitating surgical debridement is a mainstay of therapy. Resulting defects are often composite in nature, mandating free tissue-transfer reconstruction. Outcomes data for free flap reconstruction are limited. The purpose of this study was to examine surgical outcomes and survival in patients undergoing free flap transfer following invasive fungal sinusitis. STUDY DESIGN: Retrospective case series...
October 12, 2016: Laryngoscope
Mara C Modest, Eric J Moore, Kathryn M Van Abel, Jeffrey R Janus, John R Sims, Daniel L Price, Kerry D Olsen
OBJECTIVES/HYPOTHESIS: Discuss current techniques utilizing the scapular tip and subscapular system for free tissue reconstruction of maxillary defects and highlight the impact of medical modeling on these techniques with a case series. STUDY DESIGN: Case review series at an academic hospital of patients undergoing maxillectomy + thoracodorsal scapula composite free flap (TSCF) reconstruction. Three-dimensional (3D) models were used in the last five cases. METHODS: 3D modeling, surgical, functional, and aesthetic outcomes were reviewed...
October 12, 2016: Laryngoscope
S M Balaji
Ballistic injuries of oral and maxillofacial region are usually fatal due to close propinquity with the vital structures. The severity of injury depends on the caliber of the weapon used and distance from which the patient is shot. The preliminary care of facial ballistic wounds strictly adheres to the basics of trauma resuscitation. Early and appropriate surgical management has proved to be influential on the final outcome and esthetic result. Treatment of facial gunshot wounds should be planned and carried out carefully to avoid esthetic complications...
July 2016: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
Wei-Liang Chen, Zhao-Hui Yang, Zhi-Quan Huang, Song Fan, Da-Ming Zhang, You-Yuan Wang
PURPOSE: Head and neck tumors that involve the craniomaxillofacial region are classified as stage IVb disease and are clinically challenging. In this study, the outcomes of craniofacial resection and craniofacial reconstruction in patients with recurrent malignant tumors involving the craniomaxillofacial region were evaluated. PATIENTS AND METHODS: This retrospective observational study was conducted from January 2008 to August 2015. Data collected for each patient included age, gender, tumor site, initial treatment, craniofacial resection, reconstruction flaps and complications after craniofacial resection, adjuvant treatment, and reported outcomes of craniofacial resection and craniofacial reconstruction...
September 13, 2016: Journal of Oral and Maxillofacial Surgery
Shih-Pin Huang, I-Shiung Chen, Nian-Hong Jang-Liaw, Kwang-Tsao Shao, Mana M N Yung
The Mugilogobius group consists of brackish water gobionellines widely distributed in the Indo-West Pacific region. Complete mitochondrial genome and morphological evidence was collected to estimate their phylogenetic relationship and taxonomic status. A total of 11 genera were sampled, including Brachygobius, Calamiana, Hemigobius, Mugilogobius, Pandaka, Pseudogobiopsis, Pseudogobius, Redigobius, Rhinogobius, Stigmatogobius, and Wuhanlinigobius, five of which were sequenced for the first time. A morphological phylogenetic tree was also reconstructed based on 35 characters...
October 2016: Zoological Science
Jorge I Cerdá, Jagoda Sławińska, Guy Le Lay, Antonela C Marele, José M Gómez-Rodríguez, María E Dávila
Carbon and silicon pentagonal low-dimensional structures attract a great interest as they may lead to new exotic phenomena such as topologically protected phases or increased spin-orbit effects. However, no pure pentagonal phase has yet been realized for any of them. Here we unveil through extensive density functional theory calculations and scanning tunnelling microscope simulations, confronted to key experimental facts, the hidden pentagonal nature of single- and double-strand chiral Si nano-ribbons perfectly aligned on Ag(110) surfaces whose structure has remained elusive for over a decade...
October 6, 2016: Nature Communications
A Di Martino, P Bonavolontà, G Dell'Aversana Orabona, F Schönauer
Wide resection of recurrent basal cell carcinoma (BCC) in the peri-orbital-infraorbital-nasal area may include periosteum resection with maxillary or nasal bone exposure. The absence of vascularized periosteum makes the defect ungraftable and local flaps are often required. As an alternative to a large single flap or a combination of flaps, it is possible to turn the ungraftable portion of the defect into a graftable one. The suborbicularis oculi fat (SOOF) flap is an advancement flap that is used in aesthetic surgery for midface rejuvenation...
September 30, 2016: International Journal of Oral and Maxillofacial Surgery
Toshiaki Kodera, Hidetaka Arishima, Shinsuke Yamada, Hiroshi Arai, Ayumi Akazawa, Yoshifumi Higashino, Ryuhei Kitai, Satoshi Iino, Helmut Bertalanffy, Ken-Ichiro Kikuta
BACKGROUND: The surgical technique of obitozygomatic craniotomy reported by Zabramski, et al. is an excellent procedure, facilitating wide surgical exposure, easy orbital reconstruction, and a satisfactory postsurgical esthetic outcome; however, it is anatomically complicated and technically difficult. OBJECTIVE: The authors introduce a simplified technique of Zabramski's orbitozygomatic craniotomy and present the anatomical and clinical findings with cadaveric photos, illustrations, and a video of surgery...
September 29, 2016: World Neurosurgery
Krishna Patel, Kathleyn Brandstetter
Allogenic implants are an effective alternative to autologous grafts in the reconstruction of facial defects. These implants are used to reconstruct a variety of bony and soft-tissue defects, including the frontal and temporal regions; internal orbit; infraorbital rim; malar, paranasal, and nasal regions; mandible; and chin. In comparison to their autologous counterparts, alloplastic materials are more readily available, lack donor-site morbidity, decrease surgical time and cost, and still have relatively good postoperative tissue tolerance...
October 2016: Facial Plastic Surgery: FPS
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"