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https://www.readbyqxmd.com/read/27900244/ultrasound-evaluation-of-intra-osseous-cavity-a-preliminary-study-in-pig-mandibles
#1
Thásia L D Ferreira, Andre Luiz F Costa, Maria José A Tucunduva, Raul R Tucunduva-Neto, Elio H Shinohara, Cláudio F de Freitas
AIMS: To assess the role of ultrasonography as a possible tool for diagnosis of intra-osseous lesions. METHODS: Our sample comprised five macerated pig jaws. The regions of bony crypts of third molars were examined on both sides, totaling 10 examinations. The degrees of difficulty for both ultrasound image visualization and bone translucency were rated by two groups of evaluators (i.e. dental radiologists and physician ultrasonographers). RESULTS: Our results showed that it is possible to detect images of the intra-osseous cavity at a low-degree difficulty by using both radiographic and ultrasonic techniques (46...
November 2016: Journal of Oral Biology and Craniofacial Research
https://www.readbyqxmd.com/read/27889918/inner-ear-labyrinth-anatomy-of-monotremes-and-implications-for-mammalian-inner-ear-evolution
#2
Julia A Schultz, Ulrich Zeller, Zhe-Xi Luo
The monophyletic clade Monotremata branches early from the rest of the mammalian crown group in the Jurassic and members of this clade retain many ancestral mammalian traits. Thus, accurate and detailed anatomical descriptions of this group can offer unique insight into the early evolutionary history of Mammalia. In this study, we examine the inner ear anatomy of two extant monotremes, Ornithorhynchus anatinus and Tachyglossus aculeatus, with the primary goals of elucidating the ancestral mammalian ear morphology and resolving inconsistencies found within previous descriptive literature...
November 27, 2016: Journal of Morphology
https://www.readbyqxmd.com/read/27882356/intra-osseous-co-transplantation-of-cd34-selected-umbilical-cord-blood-and-mesenchymal-stromal-cells
#3
Leland Metheny, Saada Eid, Karen Lingas, Jane Reese, Howard Meyerson, Alexander Tong, Marcos de Lima, Alex Y Huang
Human mesenchymal stromal cells (MSC) have been shown to support the growth and differentiation of hematopoietic stem cells (HSC). We hypothesized that intra-osseous (IO) co-transplantation of MSC and umbilical cord blood (UCB) may be effective in improving early HSC engraftment, as IO transplantation has been demonstrated to enhance UCB engraftment in NOD SCID-gamma (NSG) mice. Following non-lethal irradiation (300rads), 6 groups of NSG mice were studied: 1) intravenous (IV) UCB CD34(+) cells, 2) IV UCB CD34(+) cells and MSC, 3) IO UCB CD34(+) cells, 4) IO UCB CD34(+) cells and IO MSC, 5) IO UCB CD34(+) cells and IV MSC, and 6) IV UCB CD34(+) and IO MSC...
2016: Hematol Med Oncol
https://www.readbyqxmd.com/read/27872537/large-retroperitoneal-extraosseous-osteosarcoma-invading-into-the-spine-a-case-report
#4
Anish P Nagpal, Somesh Chandra, Shaifali Goel
Extraosseous osteogenic sarcoma is a very rare malignant neoplasm. The most common sites are the extremities, thorax, and the abdomen. Retroperitoneal osteosarcomas are rare and very few cases have been reported. They are similar in their biology to high-grade soft tissue sarcomas. R0 resection appears to be the best possible treatment for these tumors but there are no published cases on how to manage them when it involves posterior and intra-spinal regions. We report a 62-year-old male who presented with a backache, and investigations revealed a large retroperitoneal fibrosarcoma invading into the lumbar spine, but was found to be an extra osseous osteosarcoma on final histopathological examination...
December 2016: Indian Journal of Surgical Oncology
https://www.readbyqxmd.com/read/27869622/acl-deficiency-increases-forces-on-the-medial-femoral-condyle-and-the-lateral-meniscus-with-applied-rotatory-loads
#5
Lucas S McDonald, James Boorman-Padgett, Robert Kent, Kyle Stone, Thomas L Wickiewicz, Andrew D Pearle, Carl W Imhauser
BACKGROUND: The articular surfaces and menisci act with the anterior cruciate ligament (ACL) to stabilize the knee joint. Their role in resisting applied rotatory loads characteristic of instability events is unclear despite commonly observed damage to these intra-articular structures in the acute and chronic ACL injury settings. METHODS: Ten fresh-frozen human cadaveric knees were mounted to a robotic manipulator. Combined valgus and internal rotation torques were applied in the presence and absence of a 300-N compressive load...
October 19, 2016: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/27862397/multiple-calcifying-pseudoneoplasms-of-the-neuraxis-mcapnon-distinct-entity-capnon-variant-or-old-neurocysticercosis
#6
Maram Abdaljaleel, Rajarshi Mazumder, Chirag B Patel, Kyuseok Im, Whitney Pope, Linda M Liau, Harry V Vinters, William H Yong
We report a case of multiple calcifying pseudoneoplasms of the neuraxis (MCAPNON) with associated multifocal perivascular microcalcifications and vascular calcinosis. Calcifying pseudoneoplasm of the neuraxis (CAPNON) is a very rare condition that may arise in extra-axial and occasionally, in intra-axial locations. Moreover, it is nearly always a solitary mass with only one case with two lesions reported. While the etiology and pathogenesis of CAPNON remains unclear, the histopathology findings of this entity have been well described...
November 10, 2016: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/27825664/-florid-osseous-dysplasia-management-of-a-symptomatic-case
#7
M Maccotta, L Radoï
INTRODUCTION: Florid osseous dysplasia is a rare and benign fibro-osseous pathology, in which bone is replaced by fibrous tissue and metaplastic bone. It can remain asymptomatic for a long time and is most often discovered incidentally during a radiological examination. Sometimes, patients are seen because of an infectious complication. OBSERVATION: An edentulous 62 years-old woman was referred for a painful mandibular swelling preventing insertion of her removable denture...
November 4, 2016: Revue de Stomatologie, de Chirurgie Maxillo-faciale et de Chirurgie Orale
https://www.readbyqxmd.com/read/27800591/unmet-needs-and-current-and-future-approaches-for-osteoporotic-patients-at-high-risk-of-hip-fracture
#8
REVIEW
Serge Ferrari, Jean-Yves Reginster, Maria Luisa Brandi, John A Kanis, Jean-Pierre Devogelaer, Jean-Marc Kaufman, Jean-Marc Féron, Andreas Kurth, René Rizzoli
: This review provides a critical analysis of currently available approaches to increase bone mass, structure and strength through drug therapy and of possible direct intra-osseous interventions for the management of patients at imminent risk of hip fracture. PURPOSE: Osteoporotic hip fractures represent a particularly high burden in morbidity-, mortality- and health care-related costs. There are challenges and unmet needs in the early prevention of hip fractures, opening the perspective of new developments for the management of osteoporotic patients at imminent and/or at very high risk of hip fracture...
December 2016: Archives of Osteoporosis
https://www.readbyqxmd.com/read/27796801/the-femoro-epiphyseal-acetabular-roof-fear-index-a-new-measurement-associated-with-instability-in-borderline-hip-dysplasia
#9
Michael Wyatt, Jan Weidner, Dominik Pfluger, Martin Beck
BACKGROUND: The definition of osseous instability in radiographic borderline dysplastic hips is difficult. A reliable radiographic tool that aids decision-making-specifically, a tool that might be associated with instability-therefore would be very helpful for this group of patients. QUESTIONS/PURPOSES: (1) To compare a new radiographic measurement, which we call the Femoro-Epiphyseal Acetabular Roof (FEAR) index, with the lateral center-edge angle (LCEA) and acetabular index (AI), with respect to intra- and interobserver reliability; (2) to correlate AI, neck-shaft angle, LCEA, iliocapsularis volume, femoral antetorsion, and FEAR index with the surgical treatment received in stable and unstable borderline dysplastic hips; and (3) to assess whether the FEAR index is associated clinical instability in borderline dysplastic hips...
October 28, 2016: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/27790590/calcifying-epithelial-odontogenic-tumour-of-the-mandible-an-unusually-aggressive-presentation-of-an-indolent-tumour
#10
Dp Arul Dev, Manjusha Pattamparambath, Manoj Joseph Michael, A V Akhilesh, Bindu Das
Calcifying Epithelial Odontogenic Tumour (CEOT) or Pindborg tumour is a rare odontogenic tumour of epithelial origin. They constitute less than 1% of odontogenic tumours. Intra-ossseous variant of CEOT are more common compared to extra-osseous variant. Although benign, these can exhibit deceptively aggressive presentation. Here we report a rare case of CEOT in a 36-year-old female patient who presented with aggressive intra-osseous lesion with cortical breach and exuberant soft tissue proliferation. The lesion was treated with resection and reconstructed with titanium reconstruction plate...
September 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27790585/clinical-and-radiologic-evaluation-of-regenerative-potential-of-nha-paste-and-dbm-in-the-treatment-of-periodontal-intra-bony-defects-a-randomized-control-trial
#11
Deepti Jain, Anshul Sawhney, Bharat Gupta, Saurabh Sharma, Saurabh Juneja, Manjushree Juneja, Shruti Sharma, Neha Patil
INTRODUCTION: Previous studies have shown that Hydroxyapatite (HA) has shown good results in the treatment of intra-osseous periodontal defects. A newer variety of HA has been designed over a period of research which has nano-sized particles and is availed in a paste consistency called Nanocrystalline Hydroxyapatite paste (NHA paste). This variation in size and surface area of NHA paste can provide better results when used in intra-bony defects. AIM: The purpose of this study was to compare the clinical and radiographic outcomes obtained with usage of NHA paste to those obtained with Demineralized Bone Matrix (DBM) in the treatment of periodontal intra-bony defects...
September 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27790579/pure-titanium-membrane-ultra-ti-%C3%A2-in-the-treatment-of-periodontal-osseous-defects-a-split-mouth-comparative-study
#12
Rashmi Khanna, Rajeev Khanna, Nilesh Dinesh Pardhe, Nancy Srivastava, Manas Bajpai, Shailendra Gupta
INTRODUCTION: Although many different types of Guided Tissue Regeneration (GTR) membranes (resorbable/non-resorbable, including titanium mesh) have been used in the field of Periodontics till now, but this is the first and only clinical study testing the effectiveness of an ultra thin pure Titanium Membrane (Ultra Ti) as a GTR membrane in infra-bony periodontal defects. AIM: To compare the efficacy of GTR in intra-bony defects with newly introduced non-resorbable barrier membrane, made of titanium called "Ultra-Ti (®) GTR Membrane" versus open flap debridement...
September 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27790578/clinical-evaluation-of-insulin-like-growth-factor-i-and-vascular-endothelial-growth-factor-with-alloplastic-bone-graft-material-in-the-management-of-human-two-wall-intra-osseous-defects
#13
Renu Devi, Jaya Dixit
INTRODUCTION: In recent years, emphasis on the use of growth factors for periodontal healing is gaining great momentum. Several growth factors showed promising results in periodontal regeneration. AIM: This study was designed to compare the clinical outcomes of 0.8μg recombinant human Vascular Endothelial Growth Factor (rh-VEGF) and 10μg recombinant human Insulin Like Growth Factor-I (rh-IGF-I) with β-Tricalcium Phosphate (β-TCP) and Polylactide-Polyglycolide Acid (PLGA) membrane in two wall intra-osseous defects...
September 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27757427/advantages-and-disadvantages-of-posterolateral-approach-for-percutaneous-endoscopic-lumbar-discectomy
#14
Junichi Yokosuka, Yasushi Oshima, Takeshi Kaneko, Yuichi Takano, Hirohiko Inanami, Hisashi Koga
BACKGROUND: Percutaneous endoscopic lumbar discectomy (PELD) is one of the less invasive treatments for lumbar disc herniation (LDH), and has 3 different operative approaches. This study focused on the posterolateral approach (PLA) and investigated the appropriate operative indication. METHODS: PLA was performed in 29 patients with foraminal and extraforaminal LDH. The height and width of the foramen, LDH type, and positional relationship between LDH and the foramen were radiologically evaluated...
September 2016: Journal of Spine Surgery (Hong Kong)
https://www.readbyqxmd.com/read/27742504/skull-base-osseous-arteriovenous-fistula-a-rare-clinical-entity-case-report-and-literature-review
#15
Aneesh Mohimen, Santhosh Kumar Kannath, E R Jayadevan
PURPOSE: To describe a rare clinical entity of intraosseous skull base arteriovenous fistula managed with transvenous fistula embolization. CASE PRESENTATION: A 57-year-old woman presented with complaints of headache and episodic tinnitus with progressive left-sided visual deterioration. Cross-sectional imaging of the head revealed multiple vascular channels in the sphenoid bone and in bilateral masticator spaces. Catheter angiography showed the presence of a large osseous arteriovenous fistula epicentered in the body of sphenoid and left pterygoid plates with arterial feeders from bilateral external carotid arteries and venous drainage into bilateral cavernous sinuses and the pterygoid venous plexus...
October 11, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27740684/trans-foveal-approach-for-curettage-and-bone-grafting-of-a-giant-cell-tumour-in-the-femoral-head
#16
Hannes A Rüdiger, Krzystof Piasecki, Fabio Becce, Stéphane Cherix
BACKGROUND: Surgical access to benign neoplastic lesions of the femoral head are associated with significant morbidity, including contamination of intra-osseous access tracks, articular cartilage lesions, avascular bone necrosis or tumour recurrence due to incomplete curettage. CASE PRESENTATION: We present a case of a 20-year-old female with a giant cell tumour in the femoral head, which was treated with curettage through a trans-foveal approach and bone grafting...
September 22, 2016: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/27634376/efficacy-of-umbilical-cord-derived-mesenchymal-stem-cell-based-therapy-for-osteonecrosis-of-the-femoral-head-a-three-year-follow-up-study
#17
Chun Chen, Zhiguo Qu, Xiaoguang Yin, Chunyu Shang, Qiang Ao, Yongquan Gu, Ying Liu
This is a retrospective analysis of the clinical effects of transplant of mesenchymal stem cells (MSCs) derived from human umbilical cord-derived MSCs (hUC‑MSCs) for the treatment of osteonecrosis of the femoral head (ONFH). The biological characteristics of hUC-MSCs were assessed using flow cytometry. Nine eligible patients were enrolled in the study as they adhered to the Association Research Circulation Osseous (ARCO) classification of stage Ⅱ‑Ⅲa, and hUC‑MSCs were grafted by intra‑arterial infusion...
November 2016: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27629724/urate-crystal-deposition-and-bone-erosion-in-gout-inside-out-or-outside-in-a-dual-energy-computed-tomography-study
#18
Patapong Towiwat, Anthony J Doyle, Gregory D Gamble, Paul Tan, Opetaia Aati, Anne Horne, Lisa K Stamp, Nicola Dalbeth
BACKGROUND: It is currently unknown whether bone erosion in gout occurs through an 'inside-out' mechanism due to direct intra-osseous crystal deposition or through an 'outside-in' mechanism from the surface of bone. The aim of this study was to examine the mechanism ('outside-in' vs. 'inside-out') of monosodium urate (MSU) crystal deposition in bone erosion in gout. Specifically, we used three-dimensional dual-energy computed tomography (DECT) to analyse the positional relationship between bone and MSU crystal deposition in tophaceous gout, and to determine whether intra-osseous crystal deposition occurs in the absence of erosion...
2016: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/27599435/imaging-of-common-arthroscopic-pathology-of-the-ankle
#19
REVIEW
Sean T Grambart
Arthroscopy of the ankle is used in the treatment and diagnosis of a spectrum of intra-articular pathology including soft tissue and osseous impingement, osteochondral lesions, arthrofibrosis, and synovitis. To help identify the correct pathology, imaging techniques are often used to aid the surgeon in diagnosing pathology and determining best treatment options. This article discusses the use of imaging in various ankle pathologies.
October 2016: Clinics in Podiatric Medicine and Surgery
https://www.readbyqxmd.com/read/27527676/micromorphometric-analysis-of-bone-blocks-harvested-with-eight-different-ultrasonic-and-sonic-devices-for-osseous-surgery
#20
Claudio Stacchi, Federico Berton, Gianluca Turco, Maurizio Franco, Chiara Ottavia Navarra, Francesca Andolsek, Michele Maglione, Roberto Di Lenarda
OBJECTIVES: The aim of this study was to analyse in vitro the main features of osteotomies performed by means of different ultrasonic and sonic systems for bone surgery. MATERIALS AND METHODS: Six ultrasonic and two sonic devices for osseous surgery were evaluated during block harvesting on bovine bone. After measuring cutting speed, images of the blocks were acquired by light stereo-microscope and E-SEM, in order to measure the osteotomy thickness and to evaluate the presence of intra-trabecular bone debris and signs of thermal injuries on the bone...
September 2016: Journal of Cranio-maxillo-facial Surgery
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