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https://www.readbyqxmd.com/read/28431400/local-delivery-of-hmgb1-in-gelatin-sponge-scaffolds-combined-with-mesenchymal-stem-cell-sheets-to-accelerate-fracture-healing
#1
Deting Xue, Wei Zhang, Erman Chen, Xiang Gao, Ling Liu, Chenyi Ye, Yanbin Tan, Zhijun Pan, Hang Li
Fracture nonunion and delayed union continue to pose challenges for orthopedic surgeons. In the present study, we combined HMGB1 gelatin sponges with MSC sheets to promote bone healing after surgical treatment of rat tibial fractures. The HMGB1 gelatin sponge scaffolds supported the expansion of mesenchymal stem cells (MSCs) and promoted the osteogenic differentiation of MSCs and MSC sheets. Lentiviral vectors were then used to overexpress HMGB1 in MSCs. The results indicated that HMGB1 promotes the osteogenic differentiation of MSCs through the STAT3 pathway...
April 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28430741/utility-of-8%C3%A2-h-and-time-decay-corrected-acquisition-scintigraphy-with-in-vitro-labeled-white-blood-cells-for-the-diagnosis-of-osteoarticular-infection
#2
Edel Noriega Álvarez, Guillermo A Martínez Pimienta, Ana M Benítez Segura, María T Bajén Lázaro, Alba Rodrígez-Gasén, Julio Rodríguez-Rubio Corona, Jaime Mora Salvadó
INTRODUCTION: Except in the spine, labeled white-blood cell scintigraphy (WBCS) with image acquisition up to 24 h is the nuclear medicine test of choice for diagnosing osteoarticular infection. However, distinguishing between inflammation and infection is a challenge. OBJECTIVES: The first aim of this study was to verify earlier research studies that used 4 and 24 h time decay-corrected acquisition (TDCA) to differentiate infection from inflammation. The second aim was to analyze whether 8 h acquisition (1-day protocol) yielded similar results as 20-24 h acquisition...
April 20, 2017: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/28430011/demographics-of-hip-dysplasia-in-the-maine-coon-cat
#3
Randall T Loder, Rory J Todhunter
Objectives The aim of this study was to study the demographics of feline hip dysplasia (FHD) in the Maine Coon cat. Methods The complete hip dysplasia registry (public and private) collected by the Orthopedic Foundation for Animals through April 2015 was accessed. There were 2732 unique cats; 2708 (99.1%) were Maine Coons, and only these were studied. Variables analyzed were sex, month/season of birth and hip dysplasia score. Two groups were created: those with and without FHD. P <0.05 was considered statistically significant...
April 1, 2017: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/28429339/observational-multicentric-study-on-chronic-sciatic-pain-clinical-data-from-44-italian-centers
#4
G A Checchia, G Letizia Mauro, G Morico, A Oriente, C Lisi, V Polimeni, M Lucia, M Ranieri
OBJECTIVE: To provide information on the clinical presentation of sciatic neuropathy and its management in a real-world setting, and to analyze the effects of a multimodal approach based on the association of physical and pharmacological therapy. PATIENTS AND METHODS: A multicentric observational prospective study was conducted in 44 Italian tertiary centers specialized in Physical Medicine and Rehabilitation, Orthopedics, Neurology, Neurosurgery, and Rheumatology...
April 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28428919/tibial-bone-grafting-for-wrist-reconstruction
#5
Schneider K Rancy, Stephanie D Malliaris, Scott W Wolfe
Background Iliac crest bone graft harvesting is routinely performed for upper extremity orthopedic procedures despite high complication rates associated with sensory nerve injury, hematoma, chronic pain, and fracture. Description of Technique Cancellous bone graft is harvested from the proximal tibia using a medial approach, minimizing donor site morbidity. Patients and Methods A retrospective review was undertaken of 14 patients who underwent cancellous proximal tibia bone graft harvesting to augment healing of wrist reconstruction, with 2 months minimum follow-up...
May 2017: Journal of Wrist Surgery
https://www.readbyqxmd.com/read/28428212/a-novel-mri-biomarker-of-spinal-cord-white-matter-injury-t2-weighted-white-matter-to-gray-matter-signal-intensity-ratio
#6
A R Martin, B De Leener, J Cohen-Adad, D W Cadotte, S Kalsi-Ryan, S F Lange, L Tetreault, A Nouri, A Crawley, D J Mikulis, H Ginsberg, M G Fehlings
BACKGROUND AND PURPOSE: T2*-weighted imaging provides sharp contrast between spinal cord GM and WM, allowing their segmentation and cross-sectional area measurement. Injured WM demonstrates T2*WI hyperintensity but requires normalization for quantitative use. We introduce T2*WI WM/GM signal-intensity ratio and compare it against cross-sectional area, the DTI metric fractional anisotropy, and magnetization transfer ratio in degenerative cervical myelopathy. MATERIALS AND METHODS: Fifty-eight patients with degenerative cervical myelopathy and 40 healthy subjects underwent 3T MR imaging, covering C1-C7...
April 20, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28428063/percutaneous-endoscopical-transforaminal-approach-versus-plf-to-treat-the-single-level-adjacent-segment-disease-after-plf-plif-1-2-years-follow-up
#7
Zhaoyu Ba, Fumin Pan, Zhonghan Liu, Bin Yu, Laurel Fuentes, Desheng Wu, Jianguang Zhu
BACKGROUND: Adjacent segment disease (ASD) is a common complication after lumbar decompression and fusion surgery. Traditional revision-surgery, including posterior lumbar decompression and posterolateral fusion (PLF) or interbody fusion (PLIF) is traumatic. The percutaneous endoscopic transforaminal procedure (PE-TF) has been widely used in patients with lumbar disc disease. However, there are no reports about using PE-TF procedure to treat ASD in the current literature. OBJECTIVE: To compare the clinical outcomes between PE-TF and PLF for single-level ASD after PLF or PLIF...
April 17, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28428032/does-semi-automatic-bone-fragment-segmentation-improve-the-reproducibility-of-the-letournel-acetabular-fracture-classification
#8
M Boudissa, B Orfeuvre, M Chabanas, J Tonetti
BACKGROUND: The Letournel classification of acetabular fracture shows poor reproducibility in inexperienced observers, despite the introduction of 3D imaging. We therefore developed a method of semi-automatic segmentation based on CT data. The present prospective study aimed to assess: 1) whether semi-automatic bone-fragment segmentation increased the rate of correct classification; 2) if so, in which fracture types; and 3) feasibility using the open-source itksnap 3.0 software package without incurring extra cost for users...
April 17, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28427448/capture-recapture-methodology-to-study-rare-conditions-using-surveillance-data-for-fragile-x-syndrome-and-muscular-dystrophy
#9
Michael G Smith, Julie Royer, Joshua Mann, Suzanne McDermott, Rodolfo Valdez
BACKGROUND: Rare conditions can be catastrophic for families and the implications for public health can be substantial. Our study compared basic surveillance through active medical record review with a linked administrative data file to assess the number of cases of two rare conditions, fragile X syndrome (FXS) and muscular dystrophy (MD) in a population. METHODS: Two methods of data collection were used to collect information from five counties comprising two standard metropolitan statistical areas of South Carolina...
April 21, 2017: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/28427416/shoulder-ultrasonography-performed-by-orthopedic-surgeons-increases-efficiency-in-diagnosis-of-rotator-cuff-tears
#10
Chih-Hao Chiu, Poyu Chen, Alvin Chao-Yu Chen, Kuo-Yao Hsu, Shih-Sheng Chang, Yi-Sheng Chan, Yeung-Jen Chen
BACKGROUND: Rotator cuff tears are very common and their incidence increases with age. Shoulder ultrasonography has recently gained popularity in detecting rotator cuff tears because of its efficiency, cost-effectiveness, time-saving, and real-time nature of the procedure. Well-trained orthopedic surgeons may utilize shoulder ultrasonography to diagnose rotator cuff tears. The wait time of patients planned to have shoulder MRI (magnetic resonance imaging) to rule in rotator cuff tears may decrease after orthopedic surgeon start doing shoulder ultrasonography as a screening tool for that...
April 20, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28427393/correlation-between-intervertebral-disc-degeneration-paraspinal-muscle-atrophy-and-lumbar-facet-joints-degeneration-in-patients-with-lumbar-disc-herniation
#11
Dong Sun, Peng Liu, Jie Cheng, Zikun Ma, Jingpei Liu, Tingzheng Qin
BACKGROUND: To assess the correlation between lumbar disc degeneration (LDD), multifidus muscle atrophy (LMA), and facet joints degeneration in patients with L4-L5 lumbar disc herniation (LDH). METHODS: Sixty patients with L4-L5 LDH diagnosed by a 1.5 T MRI scanner were enrolled in the study group and another 60 patients with non-specific back pain were enrolled in the control group. LDD, LMA, and facet joints degeneration were examined and analyzed independently by two independent orthopedic surgeons using T2-weighted images...
April 20, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28426688/vancomycin-associated-acute-kidney-injury-a-cross-sectional-study-from-a-single-center-in-china
#12
Kunming Pan, Lingyun Ma, Qian Xiang, Xueying Li, Haixia Li, Ying Zhou, Li Yang, Yimin Cui
OBJECTIVE: The objective of this study was to investigate the current situation of vancomycin (VAN)-associated acute kidney injury (VA-AKI) in China and identify the risk factors for VA-AKI, as well as to comprehensively examine the risk related to concurrent drug use. Further, we assessed the outcomes of patients who developed VA-AKI and the risk factors for these outcomes. Finally, we aimed to provide suggestions for improving the prevention and treatment of VA-AKI in China. METHODS: We conducted a retrospective observational study of inpatients who had been treated with VAN between January 2013 and December 2013 at Peking University First Hospital...
2017: PloS One
https://www.readbyqxmd.com/read/28426558/combat-surgical-workload-in-oif-oef-the-definitive-analysis
#13
Caryn A Turner, Zsolt T Stockinger, Jennifer M Gurney
BACKGROUND: Relatively few publications exist on surgical workload in the deployed military setting. This study analyses U.S. Military combat surgical workload in Iraq and Afghanistan to gain a more thorough understanding of surgical training gaps and personnel requirements. METHODS: A retrospective analysis of the Department of Defense Trauma Registry (DoDTR) was performed for all Role 2 (R2) and Role 3 (R3) Military Treatment Facilities (MTFs), from January 2001 to May 2016...
April 20, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28423488/mmp8-polymorphism-is-associated-with-susceptibility-to-osteonecrosis-of-the-femoral-head-in-a-chinese-han-population
#14
Feimeng An, Jieli Du, Yuju Cao, Jianping Shi, Yongchang Guo, Tianbo Jin, Jian Li, Junyu Chen, Ping Li, Mei Dong, Guoqiang Wang, Jianzhong Wang
Osteonecrosis of the femoral head (ONFH) is an orthopedic refractory disease that adversely affects quality of life. Matrix metalloproteinase-8 (MMP-8) produced by the bone marrow has been implicated in the degradation of collagen during bone development. We assessed whether MMP8 polymorphisms are associated with ONFH. In a case-control study, using χ2 tests and genetic model analyses, we genotyped 5 MMP8 single-nucleotide polymorphisms (SNPs) in 585 ONFH patients and 507 healthy control subjects in a Chinese Han population...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28422900/the-association-between-posttraumatic-stress-disorder-and-perceptions-of-deployment-related-injury-in-veterans-with-and-without-mild-traumatic-brain-injury
#15
Nazanin H Bahraini, Lindsey L Monteith, Holly R Gerber, Jeri E Forster, Trisha A Hostetter, Lisa A Brenner
OBJECTIVES: To examine whether the association between posttraumatic stress disorder (PTSD) and injury perceptions (ie, consequences, emotional representations, and coherence) differs for Veterans with mild traumatic brain injury (mTBI) compared with Veterans with non-TBI (ie, orthopedic). PARTICIPANTS: Eighty Veterans injured during post-9/11 deployments. DESIGN: Observational, 2×2 factorial design. MAIN MEASURES: Injury histories ascertained using the Ohio State University TBI-Identification Method and Deployment Injury Questionnaire; Injury Perception Questionnaire-Revised (injury perceptions); Structured Clinical Interview for the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (PTSD diagnosis); and PTSD Symptom Checklist-Civilian Version (PTSD symptoms)...
April 18, 2017: Journal of Head Trauma Rehabilitation
https://www.readbyqxmd.com/read/28422896/predictors-of-sleep-outcomes-following-mild-traumatic-brain-injury-in-preschoolers-subjective-and-objective-assessment-of-outcome
#16
Catherine Landry-Roy, Annie Bernier, Jocelyn Gravel, Miriam H Beauchamp
OBJECTIVES: To investigate sleep and its predictors in preschoolers with mild traumatic brain injury (mTBI). PARTICIPANTS AND PROCEDURE: The sample included 225 children, aged 18 to 60 months, divided into 3 groups: children with accidental mTBI (n = 85), children with orthopedic injury (n = 58), and typically developing children (n = 82). Retrospective reports of preinjury sleep and family functioning were obtained as part of a baseline assessment at the time of recruitment...
April 18, 2017: Journal of Head Trauma Rehabilitation
https://www.readbyqxmd.com/read/28422848/teriparatide-as-a-nonoperative-treatment-for-tibial-and-femoral-fracture-nonunion-a-case-report
#17
Li Xiaofeng, Xu Daxia, Chen Yunzhen
RATIONALE: Fracture nonunion is a great challenge for orthopedic surgeons. Many surgical interventions are associated with significant pain and heavy economic burden. Therefore, our aim was to evaluate the outcomes of a new nonoperative treatment for fracture nonunion. PATIENT CONCERNS: A 44-year-old man suffered closed fractures of the right tibia and left femur. Eleven months after surgery, there was no radiographic healing between fracture fragments. DIAGNOSES: Fracture nonunion of the right tibia and left femur...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28421386/technology-assessment-and-cost-effectiveness-in-orthopedics-how-to-measure-outcomes-and-deliver-value-in-a-constantly-changing-healthcare-environment
#18
REVIEW
Jeremy M Burnham, Fabien Meta, Vincent Lizzio, Eric C Makhni, Kevin J Bozic
PURPOSE OF REVIEW: The purpose of this study is to review the basic concepts of healthcare value, patient outcome measurement, and cost-effectiveness analyses as they relate to the introduction of new surgical techniques and technologies in the field of orthopedic surgery. RECENT FINDINGS: An increased focus on financial stewardship in healthcare has resulted in a plethora of cost-effectiveness and patient outcome research. Recent research has made great progress in identifying orthopedic technologies that provide exceptional value and those that do not meet adequate standards for widespread adoption...
April 19, 2017: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/28420544/disclosing-agents-for-the-intraoperative-identification-of-biofilms-on-orthopedic-implants
#19
Joshua A Parry, Melissa J Karau, Sanjeev Kakar, Arlen D Hanssen, Robin Patel, Matthew P Abdel
BACKGROUND: Disclosing agents are dyes used in dentistry to colorize plaque (biofilm) and may offer a means for intraoperative detection of biofilms on orthopedic implants. Methylene blue (MB) stains biofilm and is safely used in orthopedic applications. Injection of MB into acutely infected prosthetic knees before debridement may enable visualization of biofilm, which could influence treatment decisions. The aims of this study were to determine if MB could be used to visualize biofilm on total knee arthroplasty (TKA) implants and to determine if MB staining has an antimicrobial effect that might interfere with subsequent culture...
March 16, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28420300/epinephrine-induced-pulmonary-edema-during-hip-arthroscopy-a-report-of-two-cases-and-a-review-of-the-literature
#20
Nicole S Belkin, Ryan M Degen, Gregory A Liguori, Bryan T Kelly
OBJECTIVES: Hip arthroscopy utilization has significantly increased in recent years. While it is a relatively safe procedure, it is not without risk. Life-threatening complications, albeit rare, can potentially occur and must be appropriately recognized and treated. We describe 2 cases in which patients' undergoing hip arthroscopy developed pulmonary edema and their respective courses of treatment. METHODS: Both patients were being treated for symptomatic femoroacetabular impingement (FAI), with labral tears, requiring operative management after a failed trial of conservative management...
April 18, 2017: Physician and Sportsmedicine
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