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https://www.readbyqxmd.com/read/28445377/first-lower-two-thirds-osteomyocutaneous-facial-allograft-perfused-by-a-unilateral-facial-artery-outcomes-and-vascularization-at-1-year-after-transplantation
#1
Sebastian Fischer, Thomas C Lee, Nicco Krezdorn, Muayyad Alhefzi, Maximilian Kueckelhaus, Ericka M Bueno, Bohdan Pomahac
BACKGROUND: Facial allotransplantation provides a unique opportunity to restore facial form and function in severely disfigured patients. Using a single unilateral facial artery for vascularization can significantly reduce surgical duration and thus facilitate the practice of face transplantation. METHODS: A 33-year-old man with a history of high-energy ballistic trauma received a facial allograft comprising the lower two-thirds of the face, including maxilla and mandible...
May 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28439054/-calcium-and-bone-metabolism-across-women-s-life-stages-the-effects-of-oral-contraceptives-low-dose-estrogen-progestin-on-bone-metabolism-bone-mass-and-geometry-in-adolescent-and-young-adult-women
#2
Hiroya Okano
Estrogens have a biphasic action on pubertal and/or adolescent skeletal growth. Low levels of estrogen may increase the periosteal expansion through the increase in the sensitivity of bone for mechanical stimuli and the secretion of IGF-1. On the other hand, high estrogen concentrations may inhibit periosteal bone formation. To use OC/LEP(oral contraceptive/low dose estrogen-progestin) during adolescence, meaning exposure to high levels of estrogen, may prevent the acquisition of physiologic peak of bone mass...
2017: Clinical Calcium
https://www.readbyqxmd.com/read/28436105/exercise-decreases-marrow-adipose-tissue-though-%C3%A3-oxidation-in-obese-running-mice
#3
Maya Styner, Gabriel M Pagnotti, Cody McGrath, Xin Wu, Buer Sen, Gunes Uzer, Zhihui Xie, Xiaopeng Zong, Martin A Styner, Clinton T Rubin, Janet Rubin
The relationship between marrow adipose tissue (MAT) and bone health is poorly understood. We used running exercise to ask whether obesity-associated-MAT can be attenuated via exercise and whether this correlates with gains in bone quantity and quality. C57BL/6 mice were divided into diet-induced obesity (DIO n = 14) vs. low-fat diet (LFD n = 14). After 3 months, 16-week-old mice were allocated to an exercise intervention (LFD-E, DIO-E) or a control group (LFD, DIO) for 6 week (4 groups, n = 7/group)...
April 24, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28430722/the-use-of-liposomal-bupivacaine-administered-with-standard-bupivacaine-in-ankle-fractures-requiring-open-reduction-internal-fixation-a-single-blinded-randomized-controlled-trial
#4
Roy Davidovitch, Abraham Goch, Adam Driesman, Sanjit Konda, Christian Pean, Kenneth Egol
OBJECTIVES: To determine the efficacy of liposomal bupivacaine compared to placebo for post-operative pain control in patients undergoing operative fixation of ankle fractures. DESIGN: Prospective single blinded randomized control trial SETTING:: Academic Medical CenterPatients/Participants: After IRB approval, seventy-six patients who sustained an acute ankle fracture (OTA 44A-C) requiring operative fixation met inclusion criteria. INTERVENTION: Patients were randomly assigned to one of two groups, control (local intra-operative sterile saline injection under general anesthesia) or interventional (local intra-operative liposomal bupivacaine and bupivacaine injection under general anesthesia)...
April 6, 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28428078/kinetic-reconstruction-reveals-time-dependent-effects-of-romosozumab-on-bone-formation-and-osteoblast-function-in-vertebral-cancellous-and-cortical-bone-in-cynomolgus-monkeys
#5
Rogely Waite Boyce, Qing-Tian Niu, Michael S Ominsky
Romosozumab, a humanized monoclonal sclerostin antibody under development for the treatment of osteoporosis, has a unique mechanism of action on bone-increasing bone formation and decreasing bone resorption. The effects on bone formation are transient, eliciting a rapid increase in bone formation that attenuates with continued treatment. Although bone formation attenuates, bone mineral density (BMD) continues to increase. To explore potential tissue-level mechanisms that could contribute to a progressive increase in spine BMD, we used kinetic reconstruction techniques to examine the effects of romosozumab on modeling and remodeling units in vertebral cancellous bone from adult cynomolgus monkeys administered romosozumab for 10 and 28weeks...
April 18, 2017: Bone
https://www.readbyqxmd.com/read/28423998/preexisting-lesions-associated-with-complete-diaphyseal-fractures-of-the-third-metacarpal-bone-in-12-thoroughbred-racehorses
#6
Sarah N Gray, Mathieu Spriet, Tanya C Garcia, Francisco A Uzal, Susan M Stover
We characterized features of complete diaphyseal fractures of third metacarpal bones in Thoroughbred racehorses. Given that stress fractures are known to occur in the third metacarpal bone, an additional aim was to determine if complete fractures are associated with signs of a preexisting incomplete stress fracture. Bilateral metacarpi from 12 Thoroughbred racehorses euthanized because of complete unilateral metacarpal diaphyseal fracture were examined visually and radiographically. Open, comminuted, transverse or short oblique fractures occurred in the middle of the diaphysis or supracondylar region...
April 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28419546/connexin43-and-runx2-interact-to-affect-cortical-bone-geometry-skeletal-development-and-osteoblast-and-osteoclast-function
#7
Atum M Buo, Ryan E Tomlinson, Eric R Eidelman, Max Chason, Joseph P Stains
The coupling of osteoblasts and osteocytes by connexin43 (Cx43) gap junctions permits the sharing of second messengers that coordinate bone cell function and cortical bone acquisition. However, details of how Cx43 converts shared second messengers into signals that converge onto essential osteogenic processes are incomplete. Here, we use in vitro and in vivo methods to show that Cx43 and Runx2 functionally interact to regulate osteoblast gene expression and proliferation, ultimately affecting cortical bone properties...
April 17, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28419050/periosteal-infusion-of-local-anesthetics-as-an-alternative-to-bilateral-subpectoral-interfascial-plane-catheters-in-patients-with-sternal-fractures
#8
Mohamed Eid, Ben Goodman, Jonathan Womack, Barry Paul
No abstract text is available yet for this article.
May 2017: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/28415912/a-method-for-the-immunohistochemical-identification-and-localization-of-osterix-in-periosteum-wrapped-constructs-for-tissue-engineering-of-bone
#9
Phillip McClellan, Robin Jacquet, Qing Yu, William J Landis
A novel immunohistochemistry (IHC) approach has been developed to label and localize osterix, a bone-specific transcription factor, within formalin-fixed, paraffin-embedded, tissue-engineered constructs uniquely containing synthetic polymers and human periosteal tissue. Generally, such specimens consisting in part of polymeric materials and mineral are particularly difficult for IHC identification of proteins. Samples here were fabricated from human periosteum, electrospun poly-l-lactic acid (PLLA) nanofibers, and polycaprolactone/poly-l-lactic acid (PCL/PLLA, 75/25) scaffolds and harvested following 10 weeks of implantation in athymic mice...
April 1, 2017: Journal of Histochemistry and Cytochemistry: Official Journal of the Histochemistry Society
https://www.readbyqxmd.com/read/28409215/high-and-pointed-type-of-femoral-localized-reaction-frequently-extends-to-complete-and-incomplete-atypical-femoral-fracture-in-patients-with-autoimmune-diseases-on-long-term-glucocorticoids-and-bisphosphonates
#10
H Sato, N Kondo, T Nakatsue, Y Wada, J Fujisawa, J J Kazama, T Kuroda, Y Suzuki, M Nakano, N Endo, I Narita
Once a localized reaction (beaking) was detected, discontinuation of bisphosphonates (BPs) and switching to vitamin D supplementation or teriparatide therapy effectively improved its shape. When the localized reaction was high, of the pointed type, and/or accompanied by prodromal pain, the risks of complete and incomplete atypical femoral fracture increased and consideration of prophylactic fixation for such patients was required. INTRODUCTION: Femoral localized reaction (localized periosteal thickening of the lateral cortex, beaking) is reported to precede atypical femoral fractures (AFFs) and to develop in 8-10% of patients with autoimmune diseases taking BPs and glucocorticoids...
April 13, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28403103/primary-bone-lymphoma-of-radius-and-tibia-a-case-report-and-review-of-literature
#11
REVIEW
Yanmei Huan, Yiwei Qi, Weisheng Zhang, Jianguo Chu
RATIONALE: Primary bone lymphoma (PBL) is a rare malignant entity. There is a better survival of PBL than any other malignant bone tumors and extranodal lymphomas. PATIENT CONCERNS: We report a rare case of PBL involving radius and tibia. The patient was a 14-year-old girl with left forearm pain and swelling after trauma. Six months later after the last chemotherapy and radiotherapy, pain and swelling of left knee was presented. DIAGNOSES: Radiological imaging revealed a lytic destruction, periosteal reaction, and pathological fracture of radius and tibia with soft tissue mass...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28400880/arthroscopic-findings-in-anterior-shoulder-instability
#12
REVIEW
Michael Hantes, Vasilios Raoulis
BACKGROUND: In the last years, basic research and arthroscopic surgery, have improved our understanding of shoulder anatomy and pathology. It is a fact that arthroscopic treatment of shoulder instability has evolved considerably over the past decades. The aim of this paper is to present the variety of pathologies that should be identified and treated during shoulder arthroscopy when dealing with anterior shoulder instability cases. METHODS: A review of the current literature regarding arthroscopic shoulder anatomy, anatomic variants, and arthroscopic findings in anterior shoulder instability, is presented...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/28397137/fluorescence-guided-resection-of-extracranial-soft-tissue-tumour-infiltration-in-atypical-meningioma
#13
Florian Scheichel, Karl Ungersboeck, Melitta Kitzwoegerer, Franz Marhold
The exact role of 5-aminolevulinic acid (5-ALA) fluorescence-guided meningioma resection is as yet unclear. Although most of the meningiomas show positive fluorescence, the influence on outcome, fluorescence heterogeneity within the tumour, the correlation between fluorescence and the proliferation rate, as well as different quantitative measurements are a matter of debate. Positive fluorescence in bone infiltrative meningiomas is well described, whereas little data exist about 5-ALA fluorescence within soft tissue infiltration...
April 10, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28396232/treatment-of-osteomyelitis-a-case-for-disruption-of-the-affected-adjacent-periosteum
#14
J W Hudson, Austin P Daly, Michael Foster
PURPOSE: To evaluate the response of mandibular osteomyelitis treated by surgical decortication with disruption of the affected adjacent periosteum in concert with long-term targeted antibiotic therapy. The hypothesis is that, by removing the buccal cortical plate and disrupting the hypertrophically inflamed adjacent periosteum, the medullary bone will be brought in contact with bleeding tissue and circulating immunologic factors and antibiotics, which will promote definitive resolution...
March 18, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28394043/efficacy-of-stem-cells-on-periodontal-regeneration-systematic-review-of-pre-clinical-studies
#15
REVIEW
S A Tassi, N Z Sergio, M Y O Misawa, C C Villar
This systematic review aims to evaluate mesenchymal stem cells (MSC) periodontal regenerative potential in animal models. MEDLINE, EMBASE and LILACS databases were searched for quantitative pre-clinical controlled animal model studies that evaluated the effect of local administration of MSC on periodontal regeneration. The systematic review was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement guidelines. Twenty-two studies met the inclusion criteria. Periodontal defects were surgically created in all studies...
April 10, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28391431/sclerostin-antibody-increases-callus-size-and-strength-but-does-not-improve-fracture-union-in-a-challenged-open-rat-fracture-model
#16
Alyson Morse, Michelle M McDonald, Aaron Schindeler, Lauren Peacock, Kathy Mikulec, Tegan L Cheng, Min Liu, Hua Zhu Ke, David G Little
Open fractures remain a challenge in orthopedics. Current strategies to intervene are often inadequate, particularly in severe fractures or when treatment is delayed. Sclerostin is a negative regulator of bone growth and sclerostin-neutralizing antibodies (Scl-Ab) can increase bone mass and strength. The application of these antibodies to improve orthopedic repair has shown varied results, and may be dependent on the location and severity of the bony injury. We examined Scl-Ab treatment within an established rat osteotomy model with periosteal stripping analogous to open fracture repair...
April 8, 2017: Calcified Tissue International
https://www.readbyqxmd.com/read/28389822/erratum-to-periosteal-mesenchymal-chondrosarcoma-of-the-tibia-with-multifocal-bone-metastases-a-case-report
#17
Rajendra Kumar, Cihan Duran, Behrang Amini, Dejka M Araujo, Wei-Lien Wang
No abstract text is available yet for this article.
April 8, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28388514/intramuscular-hemangioma-causing-periosteal-reaction-and-cortical-hypertrophy-misdiagnosed-as-osteoid-osteoma
#18
Ya-Lin Yeh, Shu-I Yeh, Chih-Ting Cheng
INTRODUCTION: Intramuscular hemangioma in the periosteal region is rare. Although comprising less than 1% of all hemangiomas, they represent the most common type of intramuscular tumors. When located adjacent to bone, a periosteal reaction can occur. The deep localization of the hemangioma poses the diagnosis difficult. Only 8% to 19% of cases were diagnosed before surgery according to the literature review. PRESENTATION OF CASE: We present a case of forty-one-year-old female diagnosed with intramuscular hemangioma, mimicking osteoid osteoma, adjacent to the periosteal region of tibia diaphysis treated by surgical excision...
2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28386571/the-broken-ring-of-fire-a-new-radiological-sign-as-predictor-of-syndesmosis-injury
#19
James Calder, Adam Mitchell, Adam Lomax, Moez S Ballal, John Grice, Niek van Dijk, Justin Lee
BACKGROUND: Subcircumferential periosteal edema above the ankle joint is frequently present on magnetic resonance imaging (MRI) with syndesmosis injuries but has not been previously reported. Fluid height within the interosseous membrane also has not previously been shown to be associated with syndesmosis injury severity. PURPOSE: To investigate whether a new sign on MRI and measurement of the length of fluid within the interosseous membrane above the ankle may be used to enable identification of a syndesmosis injury and allow differentiation from lateral ligament injury...
March 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28382122/use-of-an-osteoplastic-flap-for-the-prevention-of-mastoidectomy-retroauricular-defects
#20
Ricardo Ferreira Bento, Robinson Koji Tsuji, Anna Carolina de Oliveira Fonseca, Ricardo Dourado Alves
Introduction After mastoidectomy, patients usually complain of bone depressions in the retroauricular region in the surgical site, especially in procedures that require extensive cortical resections. This causes inconveniences such as difficulty wearing glasses, cleaning, and aesthetics complaints. Objective This study aims to describe a vascularized flap surgical technique that uses the mastoid cortical bone adhered to the periosteum, which is pedicled on the anterior portion and repositioned at the end of the surgery...
April 2017: International Archives of Otorhinolaryngology
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