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https://www.readbyqxmd.com/read/29327556/-surgical-treatment-for-the-fractures-and-dislocations-of-the-elbow-in-old-patients
#1
Hua Xu, Li-Feng Shen, Hua-Jun Yu, Xiao-Wen Zhang, Qiao-Feng Guo
OBJECTIVE: To introduce and report the preliminary results of 7 old patients with fractures and dislocations of the elbow. METHODS: From July 2011 to August 2015, 7 old patients suffered from fractures and dislocations of the elbow(5 of which were terrible triad). One patient had type Iradial head fracture, 3 type IIand 1 type III according to the Mason classification, and 1 type I, 5 type IIand 1 type III according to the Regan-Morrey classification. All the 7 patients received operation and then were treated with external fixation...
January 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29327541/-mini-locking-plates-for-the-treatment-of-regan-morrey-type-iii-fracture-of-ulnar-coronoid-process-through-anterior-approach-of-elbow-joint
#2
Xiao Lian, Yun-Ji Zeng
OBJECTIVE: To explore clinical effects of mini-locking plates for the treatment of Regan-Morrey type III fractures of ulnar coronoid process through an anterior approach of elbow joint. METHODS: A retrospective analysis on 12 patients with Regan-Morrey type III fractures of the ulnar coronoid process was performed from January 2011 to June 2014, who were treated with unini-locking plates through the anterior approach of elbow joint. There were 7 males and 5 females, ranging in age from 23 to 65 years old, averaged 43 years old...
January 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29284902/elongated-miofascial-temporal-flap-in-comparison-with-standard-surgical-procedure-of-temporal-muscle-reconstruction
#3
Dino Dizdarevic, Tarik Masic, Edi Muslic
Introduction: Flap of the temporal muscle (m. temporalis) with its natural position, its mass and its length, compared with other bound and free microvascular flaps, is the method of choice for covering the middle part of the face after the removal of large tumor masses. Material: The study included a sample of 36 patients who were surgically treated due to malignant process at the middle face level with the performed partial, total or bilateral maxillectomy at the Clinic for Maxillofacial Surgery, University Clinical Center in Sarajevo...
October 2017: Medical Archives
https://www.readbyqxmd.com/read/29283940/evaluation-of-intersegmental-displacement-after-mandibular-setback-split-ramus-osteotomy-using-modified-l-shaped-monocortical-plate-cone-beam-computed-tomography-superimposition
#4
Dae Seok Hwang, Hyeong Geun Lee, Sang Hun Shin, Uk Kyu Kim
PURPOSE: The purpose of the current study is to compare intersegmental displacements after mandibular setback sagittal split ramus osteotomy (SSRO) using 4 types of osteosynthesis methods. PATIENTS AND METHODS: This is a retrospective study of 53 subjects who presented underwent bilateral setback SSRO at Pusan National University Hospital from January 2009 to December 2013. The subjects were divided into 4 groups according to the osteosynthesis method applied: group A-modified L-type monocortical plate; B-conventional miniplate; group C-bicortical screws; group D-metal and absorbable screws...
December 27, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29275154/three-dimensional-growth-pattern-of-the-rat-mandible-revealed-by-periodic-live-micro-computed-tomography
#5
Hak-Jin Kim, Kyeong-Mee Park, Hye-Jin Tak, Ji Wook Choi, Sang-Hoon Kang, Wonse Park, Sang-Hwy Lee
OBJECTIVE: We wanted to evaluate the three-dimensional (3D) mandibular growth of Sprague-Dawley rats from 4th to 16th postnatal weeks with periodic and live micro-computed tomographic scanning. DESIGN: Twenty Sprague-Dawley rats were used for micro-CT scanning from 4th to 16th postnatal weeks. After 3D reconstruction of rat mandible, we performed the linear and angular measurements and the superimposition of the 3D models to evaluate the mandibular growth of rat...
December 16, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/29213017/topographical-anatomy-of-the-pronator-teres-muscle-and-median-nerve-a-study-using-histological-sections-of-human-fetuses
#6
Shinichi Abe, Naomitsu Tomita, Masahito Yamamoto, Minako Sato, Hiroshi Abe, Gen Murakami, Jose Francisco Rodríguez-Vázquez
The median nerve passes through the humeral and ulnar heads of the pronator teres muscle (PT), although variations such as absence of the ulnar head may exist. We observed histological sections of the upper extremity from 24 embryos and fetuses. In the early stage, the PT extended between the radius and the medial epicondyle of the humerus, but no candidate for the ulnar head was found. In mid-term fetuses, the ulnar margin of the PT was attached to the elbow joint capsule. Moreover, in late-stage fetuses, a small deep part of the PT arose from the thick joint capsule of the humero-ulnar joint near the coronoid process of the ulna...
2017: Okajimas Folia Anatomica Japonica
https://www.readbyqxmd.com/read/29176627/functional-anatomy-of-a-giant-toothless-mandible-from-a-bird-like-dinosaur-gigantoraptor-and-the-evolution-of-the-oviraptorosaurian-jaw
#7
Waisum Ma, Junyou Wang, Michael Pittman, Qingwei Tan, Lin Tan, Bin Guo, Xing Xu
The Oviraptorosauria are a group of theropod dinosaurs that diverged from the typical carnivorous theropod diet. It includes two main lineages - Caenagnathidae and Oviraptoridae - that display a number of differences in mandibular morphology, but little is known about their functional consequences, hampering our understanding of oviraptorosaurian dietary evolution. This study presents the first in-depth description of the giant toothless mandible of Gigantoraptor, the only well-preserved stemward caenagnathid mandible...
November 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29169720/treatment-of-radial-head-fractures-and-need-for-revision-procedures-at-1%C3%A2-and%C3%A2-2%C3%A2-years
#8
Eli S Kupperman, Asher I Kupperman, Scott A Mitchell
PURPOSE: Optimal treatment strategies for radial head fractures remain a subject of debate. We examined national practice patterns in the management of radial head fractures to determine rates of surgical treatment, type of surgery employed, and the incidence of reoperation. METHODS: Between 2007 and 2011, we identified patients with radial head fractures along with their associated injuries by International Classification of Diseases, Ninth Revision codes in a national database of orthopedic insurance records...
November 21, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/29148085/built-to-bite-differences-in-cranial-morphology-and-bite-performance-between-narrow-and-broad-headed-european-glass-eels
#9
Jens De Meyer, Sam Van Wassenbergh, Mathias Bouilliart, Jelle Dhaene, Dominique Adriaens
The presence of two phenotypes in a single species is a widespread phenomenon, also observed in European eel (Anguilla anguilla). This dimorphism has been related to dietary differences in the subadult elver and yellow eel stages, with broad-heads generally feeding on harder and/or larger-bodied prey items than narrow-heads. Nevertheless, both broad- and narrow-headed phenotypes can already be found among glass eels, the stage preceding the elver eel stage. As these glass eels are considered nonfeeding, we investigate here to what degree the observed variation in head width is reflected in variation in the musculoskeletal feeding system, as well as whether this reflects the same variation observed in the older, dimorphic yellow eels...
November 17, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/29132383/an-unusually-large-osteochondroma-of-the-mandibular-angle-a-case-report
#10
Ryosuke Abe, Ikuya Miyamoto, Hirotaka Sato, Daishi Saitou, Genki Yamaya, Hiroyuki Yamada
BACKGROUND: Osteochondroma is a benign bone tumor that can occur in both the mesenchymal and craniofacial bones. However, craniofacial osteochondromas are extremely rare, because the mandible develops by intramembranous ossification rather than by endochondral ossification. CASE PRESENTATION: The most common site of craniofacial osteochondroma is the mandibular condyle, followed by the coronoid process. In the present study, we have described the case of a 64-year-old Japanese man with an unusually large osteochondroma located on the internal angle of the mandibular body...
November 13, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29109944/surgical-excision-of-osteochondroma-on-mandibular-condyle-via-preauricular-approach-with-zygomatic-arch-osteotomy
#11
Sang-Hoon Park, Jun-Hyeong An, Jeong Jun Han, Seunggon Jung, Hong-Ju Park, Hee-Kyun Oh, Min-Suk Kook
Background: Osteochondroma is a benign tumor that tends to develop in mandibular condyle and coronoid process in the craniofacial region. If tumor mass has grown from condyle into the infratemporal space with zygomatic arch obstructing the access, there are risks associated with surgical exposure and local resection of these masses. Case presentation: This study reports on a case of osteochondroma on mandibular condylar head where we treated with surgical excision via preauricular approach with 3D analysis...
December 2017: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29103848/the-posterior-bundle-s-effect-on-posteromedial-elbow-instability-after-a-transverse-coronoid-fracture-a-biomechanical-study
#12
Dave R Shukla, Elan Golan, Mitch C Weiser, Philip Nasser, Jack Choueka, Michael Hausman
PURPOSE: There has been increased interest in the role of the posterior bundle of the medial collateral ligament (pMUCL) in the elbow, particularly its effects on posteromedial rotatory stability. The ligament's effect in the context of an unfixable coronoid fracture has not been the focus of any study. The purposes of this biomechanical study were to evaluate the stabilizing effect of the pMUCL with a transverse coronoid fracture and to assess the effect of graft reconstruction of the ligament...
November 2, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/29037846/altered-bone-density-and-stress-distribution-patterns-in-long-standing-cubitus-varus-deformity-and-their-effect-during-early-osteoarthritis-of-the-elbow
#13
S Miyamura, K Oka, S Abe, A Shigi, H Tanaka, K Sugamoto, H Yoshikawa, T Murase
OBJECTIVE: To quantify the bone density and stress distribution patterns in long-standing cubitus varus and clarify the effects of the deformity on bone density. DESIGN: We created three-dimensional computed tomography (CT) elbow models from 21 patients with long-standing cubitus varus deformities without advanced osteoarthritis (OA) and assessed the deformity by superimposing the affected humerus onto a mirror-image of the contralateral normal. Elbows were divided into 13 regions before measuring the bone density of each region and comparing the percentage of high-density volume (%HDV) between affected and normal sides...
October 14, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28955676/a-rare-cause-of-intranasal-mass-bilateral-ectopic-nasal-teeth
#14
Hasan-Emre Koçak, Kadir Özdamar, Bekir Bilgi, Harun Acıpayam
INTRODUCTION: Ectopic teeth occur in a wide variety of sites, including the maxillary sinus, mandibular condyle, coronoid process, orbital, and nasal cavities. Reported symptoms and signs associated with nasal teeth include facial pain, external nasal deformities, foul-smelling rhinorrhea, recurrent epistaxis, and oronasal fistula. Ectopic teeth occurring bilaterally in the nasal cavity is very very rare. CASE REPORT: A bilateral intranasal ectopic teeth case, which is asymptomatic on the right side and symptomatic on the left side, is presented...
September 2017: Iranian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/28878876/an-unusual-case-of-disappearing-bone-disease-in-the-mandible-and-literature-review
#15
Ambareen A Naqvi, Sandeep S Joshi, Edmund Bailey
Disappearing bone disease is a rare disorder that causes spontaneous and progressive osteolysis and proliferation of lymphatic tissue and blood vessels. It is debilitating and there is evidence of mortality in reported cases including those affecting mandible. A 38-year-old man was diagnosed with disappearing bone disease of the mandible in 2013. This had progressed from being in the right ramus only, and now extends to the lower right first molar and affects the left coronoid process and ramus. Mandibular involvement has shown to be high-risk...
February 2017: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/28855872/a-novel-method-to-detect-3d-mandibular-changes-related-to-soft-diet-feeding
#16
Kana Kono, Chihiro Tanikawa, Takeshi Yanagita, Hiroshi Kamioka, Takashi Yamashiro
Craniofacial morphology varies among individuals, which is regulated by the interaction between genes and the environment. Soft-diet feeding is a widely-used experimental model for studying the association between the skeletal morphology and muscle-related loading on the bone. Traditionally, these studies have been based on linear and angular measurements provided on two-dimensional (2D) radiographs in the lateral view. However, 2D observation is based on simplification of the anatomical structures and cannot detect three-dimensional (3D) changes in detail...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28798004/clear-cell-variant-of-calcifying-epithelial-odontogenic-tumor-a-rare-clinical-entity
#17
Husain Sabir, Subhash Kumbhare, Saurabh Redij, Namrata Gajbhiye
Calcifying epithelial odontogenic tumor (CEOT) is a rare benign odontogenic neoplasm of the jaws. Although clear cells have been reported in approximately 8% of cases of CEOT, the exact nature of these cells in clear cell calcifying epithelial odontogenic tumor (CCEOT) has not been elucidated. Presence of clear cells in CEOT may confer a more aggressive behavior to the lesion and a tendency for recurrence and metastatic spread. We report of a case of CCEOT in a 63 year old female patient which was first treated with enucleation; however recurrence prompted a segmental resection along with coronoid and condyle...
May 2017: Gulf Journal of Oncology
https://www.readbyqxmd.com/read/28795018/in-vivo-fluoroscopic-kinematography-of-dynamic-radio-ulnar-incongruence-in-dogs
#18
Thomas Rohwedder, Martin Fischer, Peter Böttcher
Aim of the study was to investigate dynamic radio-ulnar incongruence (dRUI) in the canine elbow joint comparing orthopedic healthy and dysplastic dogs in a prospective in vivo study design. In 6 orthopedic sound elbow joints (5 dogs, median age 17 months & mean body weight 27.9 kg) and 7 elbow joints with medial coronoid disease (6 dogs, median age 17.5 months & mean body weight 27.6 kg) 0.8 mm Ø tantalum beads were surgically implanted into radius, ulna and humerus for dynamic radiosteriometric analysis (RSA) using high-speed biplanar fluoroscopy with the dogs walking on a treadmill...
2017: Open Veterinary Journal
https://www.readbyqxmd.com/read/28779799/editorial-commentary-danger-zone-the-posteromedial-elbow-don-t-go-looking-for-trouble-and-it-won-t-find-you-arthroscopic-management-of-the-arthritis-elbow
#19
EDITORIAL
Felix H Savoie
Arthroscopy for elbow arthritis has been used by this author for 30 years. There are many benefits to arthroscopic management of the arthritic elbow. A complete understanding of the pathology is essential to correct surgical management. Excision of spurs and osteophytes, deepening of the coronoid or olecranon fossa, removal of loose bodies, and synovectomy are essential. Arthritis is usually not a capsular problem, so the releases needed for post-traumatic ankylosis takedown are not usually necessary in the arthritic elbow...
August 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28774721/ontogenetic-and-functional-modularity-in-the-rodent-mandible
#20
Rachel A Menegaz, Matthew J Ravosa
The material properties of diets consumed by juvenile individuals are known to affect adult morphological outcomes. However, much of the current experimental knowledge regarding dietary effects on masticatory form is derived from studies in which individuals are fed a non-variable diet for the duration of their postweaning growth period. Thus, it remains unclear how intra-individual variation in diet, due to ontogenetic variation in feeding behaviors or seasonal resource fluctuations, affects the resulting adult morphology...
June 8, 2017: Zoology: Analysis of Complex Systems, ZACS
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