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https://www.readbyqxmd.com/read/28100683/impact-of-microscopic-orbital-periosteum-invasion-in-orbital-preservation-surgery
#1
Kenya Kobayashi, Taisuke Mori, Fumihiko Matsumoto, Naoya Murakami, Masanori Teshima, Masahiko Fukasawa, Yoshifumi Matsumoto, Satoko Matsumura, Jun Itami, Masahiro Asai, Seiichi Yoshimoto
OBJECTIVE: The orbital periosteum is considered to be a barrier to tumor spread; however, it is difficult to evaluate microscopic tumor spread during surgery. This study aimed to assess the impact of pathological status in orbital preservation surgery. METHODS: We retrospectively analyzed the 3-year local control rate and treatment outcomes of patients with malignant tumors invading the orbit who were treated between 2006 and 2012. RESULTS: In total, 27 patients were reviewed over a median follow-up period of 36 months...
January 17, 2017: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28094420/evaluation-of-the-optimal-plate-position-for-the-fixation-of-supraglenoid-tubercle-fractures-in-warmbloods
#2
Sina Frei, Hans Geyer, Seamus Hoey, Anton E Fuerst, Andrea S Bischofberger
OBJECTIVES: To determine scapular cortex thickness, distal scapular bone density and describe the exact suprascapular nerve course to evaluate the best plate position for the fixation of supraglenoid tubercle fractures in horses. METHODS: Twelve equine cadaveric shoulders were examined with computed tomography. Computed tomography morphometry and density measurements (Hounsfield units [HU]) of the scapula were recorded. Statistical comparisons were made between the cranial and caudal aspects of the scapula...
January 17, 2017: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
https://www.readbyqxmd.com/read/28092776/periosteum-tissue-engineering-in-an-orthotopic-in%C3%A2-vivo-platform
#3
J G Baldwin, F Wagner, L C Martine, B M Holzapfel, C Theodoropoulos, O Bas, F M Savi, C Werner, E M De-Juan-Pardo, D W Hutmacher
The periosteum plays a critical role in bone homeostasis and regeneration. It contains a vascular component that provides vital blood supply to the cortical bone and an osteogenic niche that acts as a source of bone-forming cells. Periosteal grafts have shown promise in the regeneration of critical size defects, however their limited availability restricts their widespread clinical application. Only a small number of tissue-engineered periosteum constructs (TEPCs) have been reported in the literature. A current challenge in the development of appropriate TEPCs is a lack of pre-clinical models in which they can reliably be evaluated...
November 20, 2016: Biomaterials
https://www.readbyqxmd.com/read/28079807/a-case-report-distal-humeral-diaphyseal-fracture-in-a-child
#4
Yuji Tomori, Takuya Sawaizumi, Mitsuhiko Nanno, Shinro Takai
RATIONALE: Distal humeral diaphyseal fractures are much less common than supracondylar humeral fractures. The triangular shape and thinner periosteum in the diaphyseal region than in the supracondylar region of the distal diaphysis makes the treatment of diaphyseal fractures difficult. Nonoperative treatment for this fracture is challenging and troublesome; thus, open reduction and internal fixation (OR/IF) is generally recommended. PATIENT CONCERNS: We herein report a distal humeral diaphyseal fracture in a child...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28074876/scale-up-of-nature-s-tissue-weaving-algorithms-to-engineer-advanced-functional-materials
#5
Joanna L Ng, Lillian E Knothe, Renee M Whan, Ulf Knothe, Melissa L Knothe Tate
We are literally the stuff from which our tissue fabrics and their fibers are woven and spun. The arrangement of collagen, elastin and other structural proteins in space and time embodies our tissues and organs with amazing resilience and multifunctional smart properties. For example, the periosteum, a soft tissue sleeve that envelops all nonarticular bony surfaces of the body, comprises an inherently "smart" material that gives hard bones added strength under high impact loads. Yet a paucity of scalable bottom-up approaches stymies the harnessing of smart tissues' biological, mechanical and organizational detail to create advanced functional materials...
January 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28070629/-susceptibility-to-infections-and-behavior-of-stainless-steel-comparison-with-titanium-implants-in-traumatology
#6
Patrick Haubruck, Gerhard Schmidmaier
BACKGROUND: Despite modern treatment options, implant-associated infections (IAI) remain a severe and challenging complication in the treatment of trauma patients. Almost 30 years after the introduction of implants made of titanium alloy into the treatment of trauma patients, there is still no uniform consensus regarding the clinical benefit of titanium alloy in the context of patients with IAI. OBJECTIVE: We sought to determine if implants made of titanium alloy have been proven to be less susceptible regarding IAI in contrast to implants made of stainless steel...
January 9, 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/28054920/evaluation-of-honey-as-a-topical-therapy-for-intraoral-wound-healing-in-rats
#7
Goli Chamani, Mohammad Reza Zarei, Mitra Mehrabani, Ali Mehdavinezhad, Mehrangiz Vahabian, Fatemah Ahmadi-Motamayel
OBJECTIVE: Honey is one of the oldest known medicines. Its medical and therapeutic importance has been recently rediscovered. Honey is an effective treatment for infected wounds and ulcers. The aim of this study was to determine the effect of honey as a topical therapy for intraoral wound healing in rats. MATERIALS AND METHODS: Thirty-two male rats were divided into experimental and control groups (consisting of 16 rats, 4 animals in each group). A 2-mm mucosal defect was made to the depth of the periosteum using punch biopsy...
December 29, 2016: Wounds: a Compendium of Clinical Research and Practice
https://www.readbyqxmd.com/read/28042273/gingival-crevicular-fluid-periostin-levels-in-chronic-periodontitis-patients-following-nonsurgical-periodontal-treatment-with-low-level-laser-therapy
#8
Dhanangchaayan Kumaresan, Aruna Balasundaram, Vanaja Krishna Naik, Deva Priya Appukuttan
OBJECTIVE: Periostin is a matricellular protein highly expressed in periosteum, periodontal ligament and is essential for tissue integrity and maturation. It plays a role in collagen fibrillogenesis and is downregulated in periodontal disease. Biostimulation utilizing low-level laser therapy (LLLT) influences periodontal ligament fibroblast proliferation. This study was conducted with the objective of estimating periostin levels in chronic periodontitis (CP) patients following LLLT as an adjunct to root surface debridement (RSD)...
October 2016: European Journal of Dentistry
https://www.readbyqxmd.com/read/28040084/do-skeletal-muscle-mscs-in-humans-contribute-to-bone-repair-a-systematic-review
#9
Heather Owston, Peter V Giannoudis, Elena Jones
Mesenchymal stem cells (MSC) from bone marrow and periosteum are known to be heavily involved in fracture repair and bone regeneration is thought to be impaired when the surrounding skeletal muscle is damaged. Recent literature from mouse in vivo models suggest that cells originating from skeletal muscle can occupy a fracture callus during open fracture repair when periosteum is compromised. This systematic review set out to ascertain whether there are MSCs residing in human skeletal muscle and whether cells from human skeletal muscle are capable of forming bone in vitro and in vivo...
December 2016: Injury
https://www.readbyqxmd.com/read/28027174/anatomy-of-the-platysma-muscle
#10
Kun Hwang, Ji Yeon Kim, Jae Hyun Lim
The aim of this paper was to review the anatomy the platysma systematically.The term "platysma AND anatomy" was used to search PubMed and Scopus, producing 394 and 214 papers, respectively. After excluding 95 duplicate titles, 513 abstracts and 98 full papers were reviewed. Among these 98 papers, 83 were excluded and 5 were added. Ultimately, 20 papers were analyzed.The most common aging-related change of the platysma was shortening (70.7%), followed by thinning (25.2%). The platysma most commonly originated from the upper portion of thorax anterior to clavicle (67...
December 23, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28026735/-quantitative-analysis-of-power-doppler-images-in-lateral-humeral-enthesopathy
#11
P Walder, L Paša, L Pavliska
PURPOSE OF THE STUDY The evaluation of efficiency of power Doppler sonography in the diagnosis of lateral humeral enthesopathy, role of correct assessment of Doppler sonographic images with the method of quantitative analysis, assessment of statistical differences between a group of patients with lateral humeral enthesopathy and a control group of healthy subjects and assessment of the diagnostic power of this test. In addition, consideration of the relevance of each area of the lateral compartment for assessment and diagnosis making in lateral humeral enthesopathy...
2016: Acta Chirurgiae Orthopaedicae et Traumatologiae Cechoslovaca
https://www.readbyqxmd.com/read/28011179/therapy-of-sinonasal-malignancies-invading-the-orbit-orbital-exenteration-versus-preservation-of-the-orbit-plus-radiotherapy
#12
Ali-Farid Safi, Lars Behn, Daniel Rothamel, Orlando Guntinas-Lichius, Dirk Beutner, Hans-Joachim Nickenig, Joachim Zöller, Matthias Kreppel
INTRODUCTION: Orbital invasion is a strong independent prognostic factor for sinonasal malignancies. While there is consent about preservation of the orbit for tumors limited to the orbital periosteum there is controversy about the optimal management of sinonasal malignancies transgressing this barrier. Therefore the aim of our study was to compare exenteration versus preservation of the orbit. MATERIAL AND METHODS: 52 patients with sinonasal malignancies invading the orbit beyond the orbital periosteum with involvement of the orbital soft tissues were included in the retrospective study...
November 30, 2016: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28002523/histological-assessment-of-fracture-healing-after-reduction-of-the-rat-femur-using-two-different-osteosynthesis-methods
#13
Tiberiu Paul Neagu, Mirela Ţigliş, Cristiana Gabriela Popp, Cristian Radu Jecan
Osteosynthesis using Kirschner (K) wires and plates with screws were compared on the same subject in a previous experimental protocol, but none of them led to fracture healing. We designed a new murine study in order to compare this two methods on different subjects in order to obtain histological proofs of which one is better and to see how limited periosteum removal influence fracture healing. Divided in two equal groups, femoral osteotomies were performed on 30 Brown Norway rats, then reduced using plates and screws in the OPS (osteosynthesis using plates and screws) group and using K-wires in the OIKW (osteosynthesis using Kirschner wire) group...
2016: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/27999690/peripheral-giant-cell-granuloma-in-a-child-associated-with-ectopic-eruption-and-traumatic-habit-with-control-of-four-years
#14
Luiz Evaristo Ricci Volpato, Cristhiane Almeida Leite, Brunna Haddad Anhesini, Jéssica Marques Gomes da Silva Aguilera, Álvaro Henrique Borges
Peripheral giant cell granuloma (PGCG) is a nonneoplastic lesion that may affect any region of the gingiva or alveolar mucosa of edentulous and toothed areas, preferentially in the mandible and rarely occurring in children. This report describes the clinical and histopathological findings of a PGCG diagnosed in the maxilla of a 9-year-old boy associated with a tooth erupting improperly and a traumatic habit. The patient did not present anything noteworthy on extraoral physical examination or medical history, but the habit of picking his teeth and "poking" the gingiva...
2016: Case Reports in Dentistry
https://www.readbyqxmd.com/read/27993740/a-technically-simple-and-safe-method-for-preparing-an-anterior-pericranial-flap-using-saline-injection-into-the-subgaleal-space-a-technical-note
#15
Jiwook Ryu, Sang Bong Chung, Seok Keun Choi, Sung Ho Lee, Yeongu Chung
INTRODUCTION: Cranial defects following anterior cranial base surgery have been frequently reconstructed using the pericranial flap. We present a simple technique for preparing the flap using injection of saline into the subgaleal space. SURGICAL TECHNIQUE: Ten minutes before skin incision, we inserted a 20-gauge needle perpendicular to 8-10 spots in the frontal area and injected 5-7 cc of saline at each spot. Distinctive swelling of the scalp was then observed...
December 16, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27986754/cannula-versus-sharp-needle-for-placement-of-soft-tissue-fillers-an-observational-cadaver-study
#16
Jani A J van Loghem, Dalvi Humzah, Martina Kerscher
BACKGROUND: Soft-tissue fillers have become important products for facial rejuvenation. Deep fat compartments and facial bones lose volume during the natural aging process. For the most natural-looking results, deep volumetric injections at strategic sites are therefore preferred. Supraperiosteal placement is performed with a sharp needle or a non-traumatic cannula. OBJECTIVES: The primary objective was to determine whether there is a difference in precision between supraperiosteal placement with a sharp needle compared with a non-traumatic cannula in cadaver specimens...
December 16, 2016: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/27986527/effects-of-orbicularis-oculi-flap-anchorage-to-the-periosteum-of-the-upper-orbital-rim-on-the-lower-eyelid-position-after-transcutaneous-blepharoplasty-statistical-analysis-of-clinical-outcomes
#17
Alessandro Innocenti, Francesco Mori, Dario Melita, Emanuela Dreassi, Marco Innocenti
BACKGROUND: The aging process affects the skin, muscle, and fat of the eyes in a different manner. Their individual rejuvenation would require specific surgical treatments according to their particular demands. In the present study, we analyzed the effect of an orbicularis oculi muscle flap fixed to the superior orbital rim to prevent lower eyelid dislocation during transcutaneous blepharoplasty. METHODS: The study was conducted retrospectively comparing pre- and postoperative images of two different groups of patients: group A (20 patients) treated with an orbicularis oculi flap and group B (17 patients) treated without the flap...
November 11, 2016: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/27974968/periosteum-mechanobiology-and-mechanistic-insights-for-regenerative-medicine
#18
REVIEW
Melissa L Knothe Tate, Nicole Y C Yu, Iman Jalilian, André F Pereira, Ulf R Knothe
Periosteum is a smart mechanobiological material that serves as a habitat and delivery vehicle for stem cells as well as biological factors that modulate tissue genesis and healing. Periosteum's remarkable regenerative capacity has been harnessed clinically for over two hundred years. Scientific studies over the past decade have begun to decipher the mechanobiology of periosteum, which has a significant role in its regenerative capacity. This integrative review outlines recent mechanobiological insights that are key to modulating and translating periosteum and its resident stem cells in a regenerative medicine context...
2016: BoneKEy Reports
https://www.readbyqxmd.com/read/27974942/osteosynthesis-using-plates-and-screws-after-removing-a-limited-area-of-the-periosteum-in-order-to-reduce-misclassified-during-radiological-assessment-metacarpal-shaft-fractures
#19
Neagu Tp, Popescu Sa, Cobilinschi C, Tincu R, Tiglis M, Lascar I
Hand fractures are one of the most common causes for presenting to the emergency room. Metacarpal fractures count about 18 to 44% of all hand fractures, and are most often standalone closed injuries, without misplacement, not needing operative treatment. We present a case in which osteosynthesis with plates and screws was used to reduce two metacarpal fractures in order to allow an early motion recovery, despite the fact that a small portion of the periosteum needed to be removed. The type of fractures were misclassified according to the radiological findings, therefore the correct diagnosis was established during surgery...
July 2016: Journal of Medicine and Life
https://www.readbyqxmd.com/read/27939043/periostin-the-bone-and-beyond
#20
REVIEW
L Idolazzi, E Ridolo, A Fassio, D Gatti, M Montagni, M Caminati, I Martignago, C Incorvaia, G Senna
In recent years the relationship between bone, metabolism and many pathophysiologic mechanisms involving other organs and the immune system, was increasingly apparent. This observation concerns vitamin D, osteopontin and periostin (PO). PO is expressed in the periosteum of long bones but also in many other tissues and organs, including heart, kidney, skin and lungs, being enhanced by mechanical stress or injury. PO has a relevant physiological function in promoting injury repair in a large number of tissues...
December 6, 2016: European Journal of Internal Medicine
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