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orbital reconstruction

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https://www.readbyqxmd.com/read/27922969/orbital-morphometry-a-computed-tomography-analysis
#1
Jaswinder Singh, Roselinda Ab Rahman, Zainul Ahmad Rajion, Johari Abdullah, Irfan Mohamad
INTRODUCTION: The human orbit is a complex anatomic region, which plays predominant role in the evaluation of craniofacial complex. A thorough understanding of the relationship of the distance from orbital rim to the important vital structures of the orbital apex is required for the surgeon to perform safe and effective surgery. OBJECTIVES: To evaluate and compare the depth and distances from various points of the orbital rim to the fissures and foramina of the orbital apex between genders in the local population...
December 5, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27922953/total-maxillary-reconstruction-with-a-bi-paddle-double-barrel-osteocutaneous-fibular-flap-and-arteriovenous-saphenous-loop-after-a-globe-sparing-total-maxillectomy-due-to-osteosarcoma
#2
Wan-Ling Tseng, Tzu-Yen Chang, Kuo-Shu Hung, Szu-Han Chen, Jenn-Ren Hsiao, Yao-Chou Lee
BACKGROUND: The titanium mesh or bone graft is usually used for orbital support after a globe-sparing total maxillectomy. However, its use can invite complications, such as infection, exposure, and absorption, especially for patients who require adjuvant radiotherapy. Here, the authors present a patient who received total maxillary reconstruction with an osteocutaneous fibular flap. METHODS: A 53-year-old man with the diagnosis of maxillary osteosarcoma received a globe-sparing total maxillectomy...
December 5, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27919596/chimeric-anterolateral-thigh-free-flap-for-reconstruction-of-complex-cranio-orbito-facial-defects-after-skull-base-cancers-resection
#3
Mario Cherubino, Mario Turri-Zanoni, Paolo Battaglia, Marco Giudice, Igor Pellegatta, Federico Tamborini, Francesca Maggiulli, Luca Guzzetti, Danilo Di Giovanna, Maurizio Bignami, Carolina Calati, Paolo Castelnuovo, Luigi Valdatta
Complex cranio-orbito-facial defects after skull base cancers resection entail a functional and esthetic reconstruction. The introduction of endoscopic assisted techniques for excision surgery with the advances in reconstructive surgery and anesthesiology allowed to improve the management of such critical patients. We report a series of chimeric anterolateral thigh (ALT) flaps used to reconstruct complex cranio-orbital-facial defects after skull base surgery. A retrospective review of patients that underwent cranio-orbito-facial reconstruction using a chimeric ALT flap from March 2013 to October 2015 at a single tertiary care referral Institute was performed...
November 2, 2016: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/27913446/use-of-bioresorbable-implants-for-orbital-fracture-reconstruction
#4
Stephanie M Young, Gangadhara Sundar, Thiam-Chye Lim, Stephanie S Lang, George Thomas, Shantha Amrith
PURPOSE: Bioresorbable implants offer several advantages over permanent implants and serve as a useful alternative in the reconstruction of orbital fractures. Our aim of the study was to evaluate the clinical effectiveness and safety of various bioresorbable implants in the repair of orbital fractures. METHODS: A retrospective review of all patients who had undergone orbital fracture repair with bioresorbable implants in a single tertiary trauma centre from January 2005 to December 2014 was performed...
December 2, 2016: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/27913089/a-combined-one-stage-surgical-approach-of-orbital-tumor-debulking-lid-reconstruction-and-ptosis-repair-in-children-with-orbitotemporal-neurofibromatosis
#5
Shay Keren, Gad Dotan, Ran Ben-Cnaan, Leah Leibovitch, Igal Leibovitch
BACKGROUND AND AIM: To describe a series of children with neurofibromatosis type 1 (NF1) and a plexiform neurofibroma of the orbit with ptosis who underwent a combined one-stage surgery for tumor debulking, lid reconstruction, and ptosis repair. METHODS: A retrospective review of 6 cases of combined one-step surgeries for orbital plexiform neurofibroma with ptosis. RESULTS: The study included 6 children (4 boys, mean age 3.4 years). Follow-up time was at least 9 months...
November 11, 2016: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/27906852/fenestration-of-solid-orbital-implants-reducing-retrobulbar-hematoma-rate
#6
Scott J Farber, Jenny L Yu, Dennis C Nguyen, Albert S Woo
PURPOSE: Retrobulbar hematoma is an uncommon but potentially devastating complication following repair of orbital fractures. Since 2007, the senior author routinely fenestrates the solid porous polyethylene implants commonly used for orbital reconstruction. The perforated implant may facilitate drainage of postoperative bleeding and may potentially reduce the risk of retrobulbar hematoma. This study examines the rates of retrobulbar hematoma in patients who underwent orbital fracture reconstruction with placement of fenestrated or nonfenestrated implants...
November 30, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27893559/personalized-reconstruction-of-traumatic-orbital-defects-based-on-precise-three-dimensional-orientation-and-measurements-of-the-globe
#7
Li Huang, Lisong Lin, Zhihong Wang, Bin Shi, Xiaofeng Zhu, Yu Qiu, Yue Huang, Xueyuan Yu, Yunyang Liao
OBJECTIVE: The aim of the study was to precisely assess the severity of traumatic orbital defects and techniques for personalized orbital reconstruction. METHODS: A retrospective study was conducted in 97 patients with traumatic orbital defects who were treated in our hospital between July 2003 and June 2012. Pre- and postoperative spiral computed tomography scans were performed in all patients. A spatial orientation technique was used to measure the three-dimensional position of the globe and calculate the changes in the orbital volume...
November 23, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27879599/total-human-eye-allotransplantation-developing-surgical-protocols-for-donor-and-recipient-procedures
#8
Edward H Davidson, Eric W Wang, Jenny Y Yu, Juan C Fernandez-Miranda, Dawn J Wang, Nikisha Richards, Maxine Miller, Joel S Schuman, Kia M Washington
BACKGROUND: Vascularized composite allotransplantation of the eye is an appealing, novel method for reconstruction of the nonfunctioning eye. The authors' group has established the first orthotopic model for eye transplantation in the rat. With advancements in immunomodulation strategies together with new therapies in neuroregeneration, parallel development of human surgical protocols is vital for ensuring momentum toward eye transplantation in actual patients. METHODS: Cadaveric donor tissue harvest (n = 8) was performed with orbital exenteration, combined open craniotomy, and endonasal approach to ligate the ophthalmic artery with a cuff of paraclival internal carotid artery, for transection of the optic nerve at the optic chiasm and transection of cranial nerves III to VI and the superior ophthalmic vein at the cavernous sinus...
December 2016: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27870353/eye-size-and-set-in-small-bodied-fossil-primates-a-three-dimensional-method
#9
Alfred L Rosenberger, Tim D Smith, Valerie B DeLeon, Anne M Burrows, Robert Schenck, Lauren B Halenar
We introduce a new method to geometrically reconstruct eye volume and placement in small-bodied primates based on the three-dimensional contour of the intraorbital surface. We validate it using seven species of living primates, with dry skulls and wet dissections, and test its application on seven species of Paleogene fossils of interest. The method performs well even when the orbit is damaged and incomplete, lacking the postorbital bar and represented only by the orbital floor. Eye volume is an important quantity for anatomic and metabolic reasons, which due to differences in eye set, or position within (or outside) the bony orbit, can be underestimated in living and fossil forms when calculated from aperture diameter...
December 2016: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/27870349/ontogeny-of-the-postorbital-region-in-tarsiers-and-other-primates
#10
Valerie B DeLeon, Timothy D Smith, Alfred L Rosenberger
Bony structure of the postorbital region is a key trait distinguishing major clades of primates. Strepsirrhines share a postorbital bar, and anthropoids share a complete postorbital septum. At issue is whether the partial postorbital septum of tarsiers unites living tarsiers more closely with anthropoids than with certain large-eyed Eocene fossils. Previously we reported incomplete postorbital closure in tarsiers at birth. In this article, we document comparative analyses of the postorbital region in a broad range of perinatal primates...
December 2016: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/27861401/orbitocutaneous-fistula-secondary-to-buried-polyethylene-mesh-implant-12-years-after-injury
#11
Won-Kyung Cho, Audrey C Ko, Bobby S Korn, Don O Kikkawa
Fabric monofilament polyethylene mesh is an implant primarily used in the repair of abdominal and chest walls. However, there have been isolated reports of using this implant in facial reconstruction. The authors describe a patient who underwent prior orbital floor fracture repair with polyethylene mesh and subsequently developed a recurrent orbital abscess 12 years later. Despite incorporation of the fabric monofilament polyethylene mesh within healed bone, an orbitocutaneous fistula developed after a secondary injury, causing hyperglobus and cicatricial lower eyelid retraction...
November 15, 2016: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27858844/forced-duction-training-a-potential-key-point-for-recovery-in-pediatric-patients-with-trapdoor-fracture
#12
Yinwei Li, Xuefei Song, Lunhao Li, Xianqun Fan, Ming Lin
Trapdoor fracture is a type of orbital fracture frequently observed in pediatric patients after facial trauma. The treatment options and surgical outcomes associated with this fracture are controversial.This study investigated the surgery principles and strategies as well as the functional training for the recovery and prognosis of pediatric patients with trapdoor fracture.A retrospective study was conducted on 21 pediatric patients with orbital trapdoor fracture who received the transconjunctival approach for orbital defect reconstruction surgery between 2009 and 2014 at the Department of Ophthalmology, Shanghai Ninth People's Hospital...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27857522/the-use-of-reformatted-cone-beam-ct-images-in-assessing-mid-face-trauma-with-a-focus-on-the-orbital-floor-fractures
#13
Raluca Roman, Mihaela Hedeşiu, Floarea Fildan, Robert Ileşan, Diana Mitea, Cristian Dinu, Mihaela Băciuţ
BACKGROUND AND AIM: This study aims at evaluating the reliability on specific multi-planar cone beam computer tomography (CBCT) reconstruction in the orbital floor fractures. METHODS: CBCT examination of the mid-face fractures area involving the floor of the orbit was performed in a number of 93 trauma patients by two independent radiologists. Both radiologists assessed the axial, coronal and sagittal sections and also the oblique coronal and sagittal extracted sections evaluating the location of the orbital fractures, its size and displacement, the involvement of the infra-orbital foramen, herniation of fat or muscle within the maxillary sinus, the overall type of the fracture and the implication of lateral or medial orbital wall...
2016: Clujul Medical (1957)
https://www.readbyqxmd.com/read/27845963/internal-distraction-osteogenesis-with-piezosurgery-oblique-osteotomy-of-supraorbital-margin-of-frontal-bone-for-the-treatment-of-unilateral-coronal-synostosis
#14
Weimin Shen, Jie Cui, Jianbing Chen, Yi Ji, Liangliang Kong
PURPOSE: To assess the utility of internal distraction osteogenesis with Piezosurgery oblique osteotomy of supraorbital margin of frontal bone for the treatment of unilateral coronal synostosis and to study the outcome and complications of this procedure. Oblique osteotomy allows for entry into the cranial cavity, and along with parallel cut to the roof of the orbit, avoids the need to cut into the orbit which forms the frontal flap. METHODS: Oblique osteotomy was performed along the supraorbital rim to do a frontal suture of the glabella (ages of patients were less than 1 year) or on the opposite side of the supraorbital rim (ages of patients were older than 1 year) after performing a suturectomy of the effected coronal suture...
November 15, 2016: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/27843356/virtual-surgical-planning-and-3d-printing-in-prosthetic-orbital-reconstruction-with-percutaneous-implants-a-technical-case-report
#15
Yu-Hui Huang, Rosemary Seelaus, Linping Zhao, Pravin K Patel, Mimis Cohen
Osseointegrated titanium implants to the cranial skeleton for retention of facial prostheses have proven to be a reliable replacement for adhesive systems. However, improper placement of the implants can jeopardize prosthetic outcomes, and long-term success of an implant-retained prosthesis. Three-dimensional (3D) computer imaging, virtual planning, and 3D printing have become accepted components of the preoperative planning and design phase of treatment. Computer-aided design and computer-assisted manufacture that employ cone-beam computed tomography data offer benefits to patient treatment by contributing to greater predictability and improved treatment efficiencies with more reliable outcomes in surgical and prosthetic reconstruction...
2016: International Medical Case Reports Journal
https://www.readbyqxmd.com/read/27836332/ocular-pyoderma-gangrenosum-a-systematic-review
#16
Angela S Gupta, Alex G Ortega-Loayza
BACKGROUND: Pyoderma gangrenosum (PG) is a rare, ulcerative cutaneous disorder. Ophthalmic involvement in PG is atypical, but can have devastating consequences. OBJECTIVE: We sought to characterize ocular PG to allow for earlier diagnosis and therapy. To our knowledge, this is the first systematic review summarizing this clinical variant. METHODS: A systematic review was conducted using PubMed and Web of Science. Data were extracted and studies were qualitatively assessed and analyzed...
November 8, 2016: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/27833714/maxillary-sinus-mucocele-as-a-late-complication-in-zygomatic-orbital-complex-fracture
#17
Juliana Dreyer da Silva de Menezes, Lucas Borin Moura, Valfrido Antonio Pereira-Filho, Eduardo Hochuli-Vieira
This article presents an unusual case of maxillary sinus mucocele as a late complication of zygomatic-orbital complex fracture, 23 years after the initial treatment. The patient was referring diplopia and decreased visual acuity with signs of dystopia, proptosis, and epiphora. Computed tomographic scan revealed an expansive lesion in the maxillary sinus with surrounding bone erosion and displacement of the eyeball. Treatment option was excisional biopsy and orbital floor reconstruction with titanium mesh restoring the appropriate orbital position...
November 2016: Craniomaxillofacial Trauma & Reconstruction
https://www.readbyqxmd.com/read/27833710/current-management-of-zygomaticomaxillary-complex-fractures-a-multidisciplinary-survey-and-literature-review
#18
Scott J Farber, Dennis C Nguyen, Gary B Skolnick, Albert S Woo, Kamlesh B Patel
Despite the prevalence of zygomaticomaxillary complex (ZMC) fractures, there is no consensus regarding the best approach to management. The aim of this study is to determine differences in ZMC fracture treatment among various surgical specialties. A survey was conducted regarding treatment of patients with different ZMC fractures that included a minimally displaced fracture (Case 1), a displaced fracture without diplopia (Case 2), a displaced fracture with diplopia (Case 3), and a complex comminuted fracture (Case 4)...
November 2016: Craniomaxillofacial Trauma & Reconstruction
https://www.readbyqxmd.com/read/27833704/superior-orbital-fissure-syndrome-in-lateral-orbital-wall-fracture-management-and-classification-update
#19
REVIEW
Claudio Caldarelli, Rodolfo Benech, Caterina Iaquinta
The superior orbital fissure syndrome (SOFS) is an uncommon complication rarely occurring in association with craniofacial trauma. Work-up of a patient injured by a traumatic right orbitozygomatic complex fracture and SOFS is presented. Accurate computed tomography scan and three-dimensional reconstruction showed a medial displacement of the lateral orbital wall, compressing the right superior orbital fissure (SOF), without intraorbital bone fragment displacement or hemorrhage. Imaging also revealed a frontosphenotemporal fracture, according to Pellerin et al, that is, frequently associated with visual impairment...
November 2016: Craniomaxillofacial Trauma & Reconstruction
https://www.readbyqxmd.com/read/27833307/retraction-surgical-reconstruction-or-prosthetic-rehabilitation-following-orbital-exenteration-the-clinician-s-dilemma
#20
(no author information available yet)
[This retracts the article on p. 146 in vol. 47, PMID: 24987223.].
May 2016: Indian Journal of Plastic Surgery: Official Publication of the Association of Plastic Surgeons of India
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