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https://www.readbyqxmd.com/read/28531932/in-reply-to-the-letter-to-the-editor-regarding-restoration-of-anterior-vertebral-height-by-short-segment-pedicle-screw-fixation-with-screwing-of-fractured-vertebra-for-the-treatment-of-unstable-thoracolumbar-fractures
#1
https://www.readbyqxmd.com/read/28531931/a-letter-to-the-editor-regarding-restoration-of-anterior-vertebral-height-by-short-segment-pedicle-screw-fixation-with-screwing-of-fractured-vertebra-for-the-treatment-of-unstable-thoracolumbar-fractures
#2
https://www.readbyqxmd.com/read/28530782/multiple-thoracic-vertebral-fractures-as-a-complication-of-cardiopulmonary-resuscitation-a-case-report
#3
Tae Seok Jeong, Sang Gu Lee
A 50-year-old man experienced cardiac arrest. The patient underwent standard cardiopulmonary resuscitative measures for approximately 20 minutes before spontaneous circulation returned. He was diagnosed with variant angina, and subsequent imaging for evaluation of upper back pain revealed fractures of the fifth through eighth thoracic vertebrae. Multiple thoracic vertebral fractures are extremely rare. Here we report a case of multiple thoracic vertebral fractures as a complication of cardiopulmonary resuscitation...
May 2017: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
https://www.readbyqxmd.com/read/28528296/novel-ultrasound-approach-for-measuring-marbling-in-pork
#4
Agnieszka Ludwiczak, Marek Stanisz, Dariusz Lisiak, Piotr Janiszewski, Marta Bykowska, Joanna Składanowska, Piotr Ślósarz
An ultrasound examination was done on the m. longissimus lumborum, between the 10th and the 11th thoracic vertebra, on two sides (inside and outside the thoracic cavity) of the left half-carcasses of 162 fatteners. The carcasses were classified for lean meat percentage using the SEUROP system. The R pig carcasses (47.7% lean) had the thickest backfat (30.6mm; P≤0.01) and the highest content of intramuscular fat (IMF=2.28%; P≤0.01). More artifacts-free images were collected from the inside compared to the outside of the pig carcasses (90...
May 12, 2017: Meat Science
https://www.readbyqxmd.com/read/28526287/functional-analyses-of-the-primate-upper-cervical-vertebral-column
#5
Thierra K Nalley, Neysa Grider-Potter
Recent work has highlighted functional correlations between direct measures of head and neck posture and primate cervical bony morphology. Primates with more horizontal necks exhibit middle and lower cervical vertebral features that indicate increased mechanical advantage for deep nuchal musculature and mechanisms for column curvature formation and maintenance. How features of the C1 and C2 reflect quantified measures of posture have yet to be examined. This study incorporates bony morphology from the upper cervical levels from 20 extant primate species in order to investigate further how posture correlates with cervical vertebrae morphology...
June 2017: Journal of Human Evolution
https://www.readbyqxmd.com/read/28525480/a-new-entrance-technique-for-c2-pedicle-screw-placement-and-the-use-in-patients-with-atlantoaxial-instability
#6
Jia-Ming Liu, Jian Jiang, Zhi-Li Liu, Xin-Hua Long, Wen-Zhao Chen, Yang Zhou, Song Gao, Lai-Chang He, Shan-Hu Huang
STUDY DESIGN: A prospective study and a technique note. OBJECTIVES: To introduce a new entrance technique for C2 pedicle screw placement and to measure the related linear and angular parameters about the entrance point on computed tomography (CT) images. The safety of this technique for patients with atlantoaxial instability was also evaluated. BACKGROUND DATA: Although earlier studies have introduced different methods for C2 pedicle screw placement, the entry points and the angular parameters may be variable...
June 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28525478/a-radiographic-analysis-of-cervical-sagittal-alignment-in-adolescent-idiopathic-cervical-kyphosis
#7
Xiao-Long Shen, Ye Tian, Xu-Hui Zhou, Dong Ren, Peng Cao, Wen Yuan
OBJECTIVE: The aim of this study was to analyze the radiologic features of adolescent idiopathic cervical kyphosis. SUMMARY OF BACKGROUND DATA: There are few previous reports about radiographic analysis of cervical sagittal alignment of adolescent idiopathic cervical kyphosis. A new method was proposed in this article to evaluate the severity of cervical kyphosis. PATIENTS AND METHODS: A total of 41 adolescent patients with cervical kyphosis were reviewed...
June 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28525475/a-comparison-of-multilevel-anterior-cervical-discectomy-and-corpectomy-in-patients-with-4-level-cervical-spondylotic-myelopathy-a-minimum-2-year-follow-up-study-multilevel-anterior-cervical-discectomy
#8
Zhonghai Li, Jiancheng Huang, Zhizhong Zhang, Fengning Li, Tiesheng Hou, Shuxun Hou
STUDY DESIGN: Retrospective clinical series. OBJECTIVES: To compare perioperative parameters, clinical outcomes, radiographic parameters, and complication rates of segmental anterior cervical corpectomy and fusion (sACCF) plus preservation of middle vertebrae with those of multilevel anterior cervical discectomy and fusion (mACDF) in 70 patients with 4-level cervical spondylotic myelopathy (CSM). METHODS: Between July 2006 and May 2011, 70 consecutive patients [49 males and 21 females; mean age 56...
June 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28525468/cortical-bone-trajectory-for-thoracic-pedicle-screws-a-technical-note
#9
Keitaro Matsukawa, Yoshiyuki Yato, Richard A Hynes, Hideaki Imabayashi, Naobumi Hosogane, Takashi Asazuma, Toshiyasu Matsui, Yasushi Kobayashi, Koichi Nemoto
STUDY DESIGN: A morphometric measurement of new thoracic pedicle screw trajectory using computed tomography and a biomechanical study on cadaveric thoracic vertebrae using insertional torque. OBJECTIVE: To introduce a new thoracic pedicle screw trajectory which maximizes engagement with denser bone. SUMMARY OF BACKGROUND DATA: Cortical bone trajectory (CBT) which maximizes the thread contact with cortical bone provides enhanced screw purchase...
June 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28524640/segmental-colonic-dilation-is-associated-with-premature-termination-of-high-amplitude-propagating-contractions-in-children-with-intractable-functional-constipation
#10
I J N Koppen, B P Thompson, E J Ambeba, V A Lane, D G Bates, P C Minneci, K J Deans, M A Levitt, R J Wood, M A Benninga, C Di Lorenzo, D Yacob
BACKGROUND: Colonic dilation is common in children with intractable functional constipation (FC). Our aim was to describe the association between segmental colonic dilation and colonic dysmotility in children with FC. METHODS: We performed a retrospective study on 30 children with intractable FC (according to the Rome III criteria) who had undergone colonic manometry and contrast enema within a 12-month time period. Colonic diameter was measured at 5 cm intervals from the anal verge up to the splenic flexure...
May 19, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28523260/combination-therapy-of-raloxifene-and-alendronate-for-treatment-of-osteoporosis-in-elderly-women
#11
Mi Jung Um, Eun A Cho, Hyuk Jung
OBJECTIVES: To evaluate and compare the efficacy and safety of the combination of raloxifene and alendronate with those of monotherapies in elderly women with osteoporosis. METHODS: Sixty-two postmenopausal women (mean age 63.5 ± 0.5 years) attending gynecologic osteoporosis clinics with established osteoporosis were randomly allocated to one of four treatment groups and monitored for 3 years. All patients enrolled in this study, including those in the control group (n = 14), received 1...
April 2017: Journal of Menopausal Medicine
https://www.readbyqxmd.com/read/28522402/prophylactic-vertebral-cement-augmentation-at-the-uppermost-instrumented-vertebra-and-rostral-adjacent-vertebra-for-the-prevention-of-proximal-junctional-kyphosis-and-failure-following-long-segment-fusion-for-adult-spinal-deformity
#12
George M Ghobrial, Daniel G Eichberg, John Paul G Kolcun, Karthik Madhavan, Nathan H Lebwohl, Barth A Green, Joseph P Gjolaj
BACKGROUND CONTEXT: Proximal junctional kyphosis (PJK) and proximal junctional failure (PJF) are common problems after long segment (>5 levels) thoracolumbar instrumented fusions in the treatment of adult spinal deformity (ASD). No specific surgical strategy has definitively been shown to lower the risk of PJK as the result of a multifactorial etiology. PURPOSE: To assess the incidence of PJK and PJF in patients treated with prophylactic polymethylmethacrylate(PMMA) cement augmentation at the uppermost instrumented vertebrae(UIV) and rostral adjacent vertebrae(UIV+1)...
May 15, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28516166/onset-and-remodeling-of-coronal-imbalance-after-selective-posterior-thoracic-fusion-for-lenke-1c-and-2c-adolescent-idiopathic-scoliosis-a-pilot-study
#13
Masayuki Ishikawa, Kai Cao, Long Pang, Nobuyuki Fujita, Mitsuru Yagi, Naobumi Hosogane, Takashi Tsuji, Masafumi Machida, Shinichi Ishihara, Makoto Nishiyama, Yasuyuki Fukui, Masaya Nakamura, Morio Matsumoto, Kota Watanabe
BACKGROUND: Postoperative coronal imbalance is a significant problem after selective thoracic fusion for primary thoracic and compensatory lumbar curves in adolescent idiopathic scoliosis (AIS). However, longitudinal studies on postoperative behavior of coronal balance are lacking. This multicenter retrospective study was conducted to analyze factors related to onset and remodeling of postoperative coronal imbalance after posterior thoracic fusion for Lenke 1C and 2C AIS. METHODS: Twenty-one Lenke 1C or 2C AIS patients, who underwent posterior thoracic fusion ending at L3 or above, were included with a minimum 2-year follow-up...
2017: Scoliosis and Spinal Disorders
https://www.readbyqxmd.com/read/28515371/bilateral-cervical-ribs-in-a-mixed-breed-dog
#14
Andrea Cantalamessa, Stefano Martin, Andrea Marchegiani, Alessandro Fruganti, Fabrizio Dini, Adolfo Maria Tambella
A 4-year-old intact female, mixed breed dog was presented with a complaint of dyspnea. Clinical examination revealed symptoms related to disease of the upper airways. Radiographic findings were consistent with tracheal collapse associated with anomalies involving the seventh cervical vertebra and the first ribs bilaterally. Radiographs were highly suggestive of cervical ribs; computed tomography and ultrasound examination allowed complete characterization and better localization of the anomalies with relationship to the adjacent muscle and vasculature...
May 18, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28515094/inhibiting-the-osteocyte-specific-protein-sclerostin-increases-bone-mass-and-fracture-resistance-in-multiple-myeloma
#15
Michelle M McDonald, Michaela R Reagan, Scott E Youlten, Sindhu T Mohanty, Anja Seckinger, Rachael L Terry, Jessica A Pettitt, Marija K Simic, Tegan L Cheng, Alyson Morse, Lawrence M T Le, David Abi-Hanna, Ina Kramer, Carolyne Falank, Heather Fairfield, Irene M Ghobrial, Paul A Baldock, David G Little, Michaela Kneissel, Karin Vanderkerken, J H Duncan Bassett, Graham R Williams, Babatunde O Oyajobi, Dirk Hose, Tri G Phan, Peter I Croucher
Multiple myeloma is a plasma cell cancer that develops in the skeleton causing profound bone destruction and fractures. The bone disease is mediated by increased osteoclastic bone resorption and suppressed bone formation. Treatment with bisphosphonates, which inhibit bone resorption, prevents bone loss but fail to influence bone formation and do not replace lost bone, so patients continue to fracture. Stimulating bone formation to increase bone mass and fracture resistance is a priority; however, targeting tumor-derived modulators of bone formation has had limited success...
May 17, 2017: Blood
https://www.readbyqxmd.com/read/28514897/biomaterials-and-bioactive-agents-in-spinal-fusion
#16
Rui M Duarte, Pedro Varanda, Rui L Reis, Ana Rita C Duarte, Jorge Correia-Pinto
Management of degenerative spine pathologies frequently leads to the need for spinal fusion, where bone growth is induced towards stabilization of the interventioned spine. Autologous bone graft (ABG) remains the gold standard inducer, while new bone graft substitutes attempt to achieve effective de novo bone formation and solid fusion. Limited fusion outcomes have driven motivation for more sophisticated and multidisciplinary solutions, involving new biomaterials and/or biologics, through innovative delivery platforms...
May 17, 2017: Tissue Engineering. Part B, Reviews
https://www.readbyqxmd.com/read/28514496/a-reappraisal-of-children-s-thoracic-surface-anatomy
#17
Nicholas Fischer, Jonty Morreau, Ramanen Sugunesegran, Kiarash Taghavi, Ali Mirjalili
Accurate knowledge of surface anatomy is fundamental to safe clinical practice. A paucity of evidence in the literature regarding thoracic surface anatomy in children was identified. The associations between surface landmarks and internal structures were meticulously analyzed by reviewing high quality computed tomography (CT) images of 77 children aged from four days to 12 years. The results confirmed that the sternal angle is an accurate surface landmark for the azygos-superior vena cava junction in a plane through to the level of upper T4 from birth to age four, and to lower T4 in older children...
May 17, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28513889/mechanically-induced-bone-formation-is-not-sensitive-to-local-osteocyte-density-in-rat-vertebral-cancellous-bone
#18
Erin N Cresswell, Thu M Nguyen, Michael W Horsfield, Adrian J Alepuz, Thomas A Metzger, Glen L Niebur, Christopher J Hernandez
Osteocytes play an integral role in bone by sensing mechanical stimuli and releasing signaling factors that direct bone formation. The importance of osteocytes in mechanotransduction suggests that regions of bone tissue with greater osteocyte populations are more responsive to mechanical stimuli. To determine the effects of osteocyte population on bone functional adaptation we applied mechanical loads to the 8(th) caudal vertebra of skeletally mature female Sprague Dawley rats (6 months of age, n = 8 loaded, n = 8 sham controls)...
May 17, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28512409/immunoglobulin-d-multiple-myeloma-presenting-as-spontaneous-fracture
#19
Samer Al Hadidi, Khalil Katato, Ghassan Bachuwa
Immunoglobulin D multiple myeloma is a rare type of multiple myeloma that usually presents as bone pain, fatigue, or weight loss. We report a case of immunoglobulin D multiple myeloma in a 53-year-old Caucasian male patient with previous medical history of anaplastic oligodendroglioma status post-surgical resection who was evaluated for back pain while mowing the lawn. His physical examination showed tenderness over the lower thoracic vertebrae with no sensory or motor impairment. Initial lab investigations showed normocytic anemia and hypercalcemia with low parathyroid hormone...
January 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/28512047/preoperative-planning-of-lateral-entry-point-is-necessary-in-percutaneous-lumbar-5th-vertebroplasty
#20
Hsi-Hsien Lin, Ming-Chau Chang, Po-Hsin Chou, Pei-I Hung, Shih-Tien Wang, Chien-Lin Liu
BACKGROUND: To compare treatment outcomes and complications between the computer-assisted preoperative planning of lateral entry approach and the traditional approach for L5 percutaneous vertebroplasty. METHODS: This prospective randomized clinical study was performed from January 2008 to December 2014, wherein 68 patients who received L5 percutaneous vertebroplasty were randomly divided into either group A, for which the traditional trans-pedicle approach was used, or group B, for which the computer-assisted lateral entry point approach was used for L5 percutaneous vertebroplasty...
May 13, 2017: World Neurosurgery
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