keyword
MENU ▼
Read by QxMD icon Read
search

vertebra

keyword
https://www.readbyqxmd.com/read/28328842/three-dimensional-printing-and-computer-navigation-assisted-hemipelvectomy-for-en-bloc-resection-of-osteochondroma-a-case-report
#1
Yaqing Zhang, Lianjiang Wen, Jun Zhang, Guoliang Yan, Yue Zhou, Bo Huang
RATIONALE: Three-dimensional (3D) printed templates can be designed to match an individual's anatomy, allowing surgeons to refine preoperative planning. In addition, the use of computer navigation (NAV) is gaining popularity to improve surgical accuracy in the resection of pelvic tumors. However, its use in combination with 3D printing to assist complex pelvic tumor resection has not been reported. PATIENT CONCERNS: A 36-year-old man presented with left-sided pelvic pain and a fast-growing mass...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28326348/effects-of-odanacatib-on-bone-matrix-mineralization-in-rhesus-monkeys-are-similar-to-those-of-alendronate
#2
Barbara M Misof, Paul Roschger, Charles Chen, Maureen Pickarski, Phaedra Messmer, Klaus Klaushofer, Le T Duong
Odanacatib (ODN) is a selective and reversible inhibitor of cathepsin K which is an important enzyme for the degradation of collagen I. Aim of the present work was the head-to-head comparison between the effects of ODN and alendronate (ALN) on bone mineralization density distribution (BMDD), based on quantitative backscattered electron imaging in relation to changes in histomorphometric mineralizing surface per bone surface (MS/BS) in 12-22 years old ovariectomized rhesus monkeys. Trabecular and cortical BMDD derived parameters from vertebrae and proximal tibiae were compared among vehicle (VEH, n = 8), odanacatib low dose (ODN-L, n = 8), odanacatib high dose (ODN-H, n = 8), and alendronate (ALN, n = 6) treated animals...
December 2016: Bone Reports
https://www.readbyqxmd.com/read/28326305/implications-for-a-stem-cell-regenerative-medicine-based-approach-to-human-intervertebral-disk-degeneration
#3
REVIEW
Petra Kraus, Thomas Lufkin
The human body develops from a single cell, the zygote, the product of the maternal oocyte and the paternal spermatozoon. That 1-cell zygote embryo will divide and eventually grow into an adult human which is comprised of ~3.7 × 10(13) cells. The tens of trillions of cells in the adult human can be classified into approximately 200 different highly specialized cell types that make up all of the different tissues and organs of the human body. Regenerative medicine aims to replace or restore dysfunctional cells, tissues and organs with fully functional ones...
2017: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/28326224/role-and-mechanism-of-action-of-leucine-rich-repeat-kinase-1-in-bone
#4
REVIEW
Weirong R Xing, Helen Goodluck, Canjun Zeng, Subburaman Mohan
Leucine-rich repeat kinase 1 (LRRK1) plays a critical role in regulating cytoskeletal organization, osteoclast activity, and bone resorption with little effect on bone formation parameters. Deficiency of Lrrk1 in mice causes a severe osteopetrosis in the metaphysis of the long bones and vertebrae bones, which makes LRRK1 an attractive alternative drug target for the treatment of osteoporosis and other high-turnover bone diseases. This review summarizes recent advances on the functions of the Lrrk1-related family members, Lrrk1 deficiency-induced skeletal phenotypes, LRRK1 structure-function, potential biological substrates and interacting proteins, and the mechanisms of LRRK1 action in osteoclasts...
2017: Bone Research
https://www.readbyqxmd.com/read/28323717/treatment-of-lumbar-split-fracture-dislocation-with-short-segment-or-long-segment-posterior-fixation-and-anterior-fusion
#5
Fei Chen, Yijun Kang, Haisheng Li, Guohua Lv, Chang Lu, Jing Li, Bing Wang, Weihua Chen, Zhehao Dai
STUDY DESIGN: Retrospective analysis of 16 patients. SUMMARY OF BACKGROUND DATA: The lumbar split fracture-dislocation is a rare but severe injury, which is type C1.2.1 fracture in the Association for the Study of Internal Fixation spine fracture classification. The axial compressive and torsional force shattered the vertebral body into 2 halves and displaced them rotationally. This kind of fracture is so highly unstable that the treatment is very challenging. PURPOSE: The purpose of this study was to report and compare on clinical outcome and complications of patients with lumbar split fracture-dislocation which had been treated either short-segment or long-segment posterior fixation and anterior fusion...
April 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28323706/comparison-of-open-versus-percutaneous-pedicle-screw-fixation-using-the-sextant-system-in-the-treatment-of-traumatic-thoracolumbar-fractures
#6
Hongwei Wang, Yue Zhou, Changqing Li, Jun Liu, Liangbi Xiang
STUDY DESIGN: We retrospectively reviewed 100 patients who were posterior stabilized without graft fusion. Using the Sextant system, 22 patients underwent minimally invasive short-segment 4-pedicle screw fixation (MIF4) and 39 patients underwent minimally invasive short-segment combined with intermediate screws fixation, that is, 6-pedicle screw fixation (MIF6). The conventional open posterior short-segment 4-pedicle screw fixation (OPF4) technique was used in 39 patients. OBJECTIVE: To evaluate the feasibility, safety, and efficacy of percutaneous pedicle screw fixation using the Sextant system in the treatment of traumatic thoracolumbar fractures compared with the conventional open posterior short-segment pedicle screw fixation technique...
April 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28323704/minimizing-pedicle-screw-pullout-risks-a-detailed-biomechanical-analysis-of-screw-design-and-placement
#7
Rohan-Jean Bianco, Pierre-Jean Arnoux, Eric Wagnac, Jean-Marc Mac-Thiong, Carl-Éric Aubin
STUDY DESIGN: Detailed biomechanical analysis of the anchorage performance provided by different pedicle screw designs and placement strategies under pullout loading. OBJECTIVE: To biomechanically characterize the specific effects of surgeon-specific pedicle screw design parameters on anchorage performance using a finite element model. SUMMARY OF BACKGROUND DATA: Pedicle screw fixation is commonly used in the treatment of spinal pathologies...
April 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28323691/mri-may-serve-as-a-valid-alternative-to-standing-radiography-in-evaluating-the-sagittal-alignment-of-the-upper-thoracic-spine
#8
Fei Wang, Xu Sun, Saihu Mao, Zhen Liu, Jun Qiao, Feng Zhu, Zezhang Zhu, Tao Pan, Ling Chen, Qinghua Zhao, Yong Qiu
STUDY DESIGN: This study is of a retrospective radiographic design. OBJECTIVE: The objective of the study was to compare supine magnetic resonance images (MRI) with standing x-ray scanning in the evaluation of the sagittal alignment of the upper thoracic spine. SUMMARY OF BACKGROUND DATA: X-ray films have been reported to be inaccurate in evaluating the proximal thoracic sagittal alignment because of poor visibility of the upper thoracic region...
April 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28323689/intradural-intramedullary-cervicothoracic-tumor-with-long-segmental-localization-a-case-report-with-step-by-step-surgical-treatment-strategy-with-neuromonitorization
#9
Askin E Hasturk, Teoman Etikcan, Suat Canbay
Ependymomas are the most common gliomas of the conus and lower cord, with the cervical cord being the second most common location. These tumors can extend upward 3-4 vertebra, and some ependymomas can extend up over 15 segments. Depending on many factors, such as tumor size, lateralization, kyphotic deformity, and lordosis state, there are several posterior surgical options, including laminectomy, laminectomy and lateral mass screw-plate, and laminoplasty. In this study, we discuss a case of intradural intramedullary cervicothoracic ependymoma with long-segmental localization, as well as the general surgical principles of its excision with step-by-step demonstrative figures...
April 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28323340/differential-scaling-patterns-of-vertebrae-and-the-evolution-of-neck-length-in-mammals
#10
Patrick Arnold, Eli Amson, Martin S Fischer
Almost all mammals have seven vertebrae in their cervical spines. This consistency represents one of the most prominent examples of morphological stasis in vertebrae evolution. Hence, the requirements associated with evolutionary modifications of neck length have to be met with a fixed number of vertebrae. It has not been clear whether body size influences the overall length of the cervical spine and its inner organization (i.e., if the mammalian neck is subject to allometry). Here, we provide the first large scale analysis of the scaling patterns of the cervical spine and its constituting cervical vertebrae...
March 21, 2017: Evolution; International Journal of Organic Evolution
https://www.readbyqxmd.com/read/28323241/the-safety-efficacy-and-cost-effectiveness-of-intraoperative-cell-salvage-in-metastatic-spine-tumour-surgery
#11
Mahmoud Elmalky, Naveed Yasin, Ricardo Rodrigues-Pinto, John Stephenson, Craig Carroll, Glyn Smurthwaite, Rajat Verma, Saeed Mohammad, Irfan Siddique
BACKGROUND CONTEXT: Metastatic spine tumour surgery (MSTS) is associated with substantial blood loss therefore leading to high morbidity and mortality. While intraoperative cell salvage with leucocyte depletion filter (IOCS-LDF) has been studied as an effective mean of reducing blood loss in other surgical settings, including the spine, no study has yet analysed the efficacy of re-infusion of salvaged blood in reducing the need for allogenic blood transfusion in patients who have had surgery for MSTS...
March 17, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28323157/anatomic-variations-of-inferior-mesenteric-artery-and-left-colic-artery-evaluated-by-3-dimensional-ct-angiography-insights-into-rectal-cancer-surgery
#12
Jia Ke, Jiawei Cai, Xiaofeng Wen, Xianrui Wu, Zhen He, Yifeng Zou, Jianping Qiu, Xiaowen He, Xiaosheng He, Lei Lian, Xiaojian Wu, Zhiyang Zhou, Ping Lan
OBJECTIVE: To demonstrate the clinical applicability of 3-dimensional CT angiography (3D-CTA) in evaluating the anatomic variations of inferior mesenteric artery (IMA) and left colic artery (LCA), to help make pre-operative strategies of rectal cancer surgery. METHODS: 188 patients with abdominal and pelvic contrast-enhanced CT scan were retrospectively enrolled and 3D-CTA was reconstructed. The origin and branching patterns of IMA, tracking patterns of LCA, intersectional patterns among IMA, LCA and inferior mesenteric vein (IMV) were examined, and their associations with clinical features were analyzed...
March 16, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28321560/may-thurner-syndrome-old-acquaintance-new-perspective-case-report
#13
Anja Boc, Vinko Boc, Matija Kozak
May-Thurner syndrome (MTS) results from a frequent anatomic variant in which compression of the left common iliac vein between the body of the fifth lumbar vertebra and the pulsating right common iliac artery can cause deep venous thrombosis (DVT) of the left lower limb. While anticoagulation remains the mainstay treatment of acute DVT, catheter-directed thrombolysis combined with stenting provides a safe and effective method for relieving acute symptoms and preventing postthrombotic syndrome in patients with MTS...
March 20, 2017: Wiener Klinische Wochenschrift
https://www.readbyqxmd.com/read/28321332/cervical-vertebral-injuries-associated-with-the-ossification-of-the-posterior-longitudinal-ligament-imaging-features
#14
Tetsuo Nakayama, Shigeru Ehara
BACKGROUND: Spinal injuries associated with ossification of the posterior longitudinal ligament (OPLL) have been characterized. However, the imaging features of traumatic cervical spine fractures in patients with OPLL have not been assessed adequately. PURPOSE: To characterize the patterns of traumatic cervical spine fractures associated with different types of OPLL. MATERIAL AND METHODS: We retrospectively analyzed the patterns of fractures resulting from cervical spine injury in patients with OPLL of different types and assessed the fracture patterns in patients with ankylosed segments...
March 2017: Acta Radiologica Open
https://www.readbyqxmd.com/read/28321306/alveolar-soft-part-sarcoma-of-the-mediastinum-a-case-report
#15
Yohei Kameda, Teppei Nishii, Masahiro Tsuboi, Hiromasa Arai, Kenji Inui, Takeshi Kaneko, Noriko Kimura, Mitsuhide Naruse, Munetaka Masuda
We report a 53-year-old man with metastases of alveolar soft-part sarcoma originated from the mediastinum. He was hospitalized due to lower extremities' paralysis. Computed tomography scan findings revealed multiple nodules of bilateral lungs, swollen mediastinal lymph nodes, and osteolysis of thoracic vertebrae. We performed spinal decompression and biopsy from vertebra. And, we finally diagnosed this case as metastases of mediastinal alveolar soft-part sarcoma which was removed 10 years ago. Alveolar soft-part sarcoma is rare tumor accounted for 0...
2017: SAGE open medical case reports
https://www.readbyqxmd.com/read/28320522/-image-guided-bone-consolidation-in-oncology-cementoplasty-and-percutaneous-screw-fixation
#16
REVIEW
Xavier Buy, Roberto Luigi Cazzato, Vittorio Catena, Guilhem Roubaud, Michele Kind, Jean Palussiere
Bone metastases are a common finding in oncology. They often induce pain but also fractures which impair quality of life, especially when involving weight-bearing bones. Percutaneous image-guided consolidation techniques play a major role for the management of bone metastases. Cementoplasty aims to stabilize bone and control pain by injecting acrylic cement into a weakened bone. This minimally invasive technique has proven its efficacy for bones submitted to compression forces: vertebra, acetabular roof, and condyles...
March 17, 2017: Bulletin du Cancer
https://www.readbyqxmd.com/read/28320029/morphometric-changes-of-the-lumbar-intervertebral-foramen-after-percutaneous-endoscopic-foraminoplasty-under-local-anesthesia
#17
Tatsuhiko Henmi, Tomoya Terai, Akihiro Nagamachi, Koichi Sairyo
Background Percutaneous endoscopic diskectomy (PED) for the lumbar spine is a relatively new technique that is becoming more common due to its relatively less invasive nature. However, one possible serious complication is an exiting nerve injury when the cannula of the endoscope is inserted into the neural canal through the intervertebral foramen. A technique to enlarge the intervertebral foramen, called foraminoplasty, was recently established to insert the cannula safely into an appropriate position in the neural canal...
March 20, 2017: Journal of Neurological Surgery. Part A, Central European Neurosurgery
https://www.readbyqxmd.com/read/28319497/vertebral-hemangioma-mimicking-bone-metastasis-in-68ga-psma-ligand-pet-ct
#18
Carlos Artigas, François-Xavier Otte, Marc Lemort, Roland van Velthoven, Patrick Flamen
Ga-PSMA PET/CT was performed in a 68-year-old man to evaluate recurrent prostate cancer due to elevated serum prostate-specific antigen level. Images showed a focal uptake in the prostatic gland, suggesting local relapse, and an intense uptake in the 12th thoracic vertebra, with no morphological abnormalities in CT slices. In order to confirm extraprostatic disease and before radiotherapy planning, a full-spine MRI was performed, resulting with the morphological pattern of a vertebral hemangioma. Hystological analysis confirmed the local relapse in the prostate...
March 17, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28318333/urinary-levels-of-pyridinoline-and-deoxypyridinoline-and-bone-mineral-density-in-children-with-type-1-diabetes-mellitus
#19
Nadide Melike Sav, Mustafa Kendirci, Leyla Akin, Selim Kurtoglu
OBJECTIVE: There is still controversy over the impact of diabetes mellitus (DM) on bone mass in children. Pyridinoline (Pyr) and deoxypyridinoline (DPyr), which stabilize the collagen chains within the extracellular matrix, are known as specific bone turnover markers. The aim of this study was to investigate the relationship between urinary Pyr and DPyr excretions and bone mineral density (BMD) in children with type 1 DM. METHODS: Serum levels of Ca, phosphorus (P), magnesium (Mg), and parathormone (PTH), alkaline phosphatase (ALP) activity, and urinary excretions of Pyr and DPyr were evaluated in 50 diabetic and 130 healthy control subjects aged between 7 and 15 years...
March 20, 2017: Endocrine Research
https://www.readbyqxmd.com/read/28317557/the-role-of-allometry-and-posture-in-the-evolution-of-the-hominin-subaxial-cervical-spine
#20
Mikel Arlegi, Asier Gómez-Olivencia, Lou Albessard, Ignacio Martínez, Antoine Balzeau, Juan Luis Arsuaga, Ella Been
Cervical vertebrae not only protect the spinal cord but also are the insertion and origin points for muscles related to the movement of the head, upper limb, and trunk, among others, and are thus important elements in primate evolution. While previous work has been undertaken on the first two cervical vertebrae, there is a dearth of studies on the subaxial cervical spine in hominines. In this paper, we provide detailed morphological information on two important aspects of the subaxial cervical vertebrae (C3 - C7): mid-sagittal morphology and superior facet orientation...
March 2017: Journal of Human Evolution
keyword
keyword
36274
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"