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osteoporosis and spinal cord injury

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https://www.readbyqxmd.com/read/29209163/voluntary-ambulation-by-upper-limb-triggered-hal%C3%A2-in-patients-with-complete-quadri-paraplegia-due-to-chronic-spinal-cord-injury
#1
Yukiyo Shimizu, Hideki Kadone, Shigeki Kubota, Kenji Suzuki, Tetsuya Abe, Tomoyuki Ueno, Yuichiro Soma, Yoshiyuki Sankai, Yasushi Hada, Masashi Yamazaki
Patients with complete paraplegia after spinal cord injury (SCI) are unable to stand or walk on their own. Standing exercise decreases the risk of decubitus ulcers, osteoporosis, and joint deformities in patients with SCI. Conventional gait training for complete paraplegia requires excessive upper limb usage for weight bearing and is difficult in cases of complete quadriplegia. The purpose of this study was to describe voluntary ambulation triggered by upper limb activity using the Hybrid Assistive Limb® (HAL) in patients with complete quadri/paraplegia after chronic SCI...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29181200/epidemiology-of-c2-fractures-in-the-21st-century-a-national-registry-cohort-study-of-6-370-patients-from-1997-to-2014
#2
Anna-Lena Robinson, Claes Olerud, Yohan Robinson
Objective: C2 fractures are a common injury in the elderly population. Treatment is often complicated due to osteoporosis and patient comorbidity. This study aims to investigate the incidence and treatment trend of C2 fractures in Sweden. Methods: Patients with the principal and secondary diagnosis of fracture of the second vertebrae (ICD-10: S12.1) between 1997 and 2014 were identified in the Swedish National Patient Registry (NPR). Results: Between 1997 and 2014, 6,370 patients with a C2 fracture (51% male; age: 72 ± 18) were identified in the NPR...
2017: Advances in Orthopedics
https://www.readbyqxmd.com/read/29043391/analysis-of-the-evolution-of-cortical-and-trabecular-bone-compartments-in-the-proximal-femur-after-spinal-cord-injury-by-3d-dxa
#3
L Gifre, L Humbert, A Muxi, L Del Rio, J Vidal, E Portell, A Monegal, N Guañabens, P Peris
Marked trabecular and cortical bone loss was observed at the proximal femur short-term after spinal cord injury (SCI). 3D-DXA provided measurement of vBMD evolution at both femoral compartments and cortical thinning, thereby suggesting that this technique could be useful for bone analysis in these patients. INTRODUCTION: SCI is associated with a marked increase in bone loss and risk of osteoporosis development short-term after injury. 3D-DXA is a new imaging analysis technique providing 3D analysis of the cortical and trabecular bone from DXA scans...
October 17, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28963125/daily-parathyroid-hormone-administration-enhances-bone-turnover-and-preserves-bone-structure-after-severe-immobilization-induced-bone-loss
#4
Lauren Harlow, Karim Sahbani, Jeffry S Nyman, Christopher P Cardozo, William A Bauman, Hesham A Tawfeek
Immobilization, as a result of motor-complete spinal cord injury (SCI), is associated with severe osteoporosis. Whether parathyroid hormone (PTH) administration would reduce bone loss after SCI remains unclear. Thus, female mice underwent sham or surgery to produce complete spinal cord transection. PTH (80 μg/kg) or vehicle was injected subcutaneously (SC) daily starting on the day of surgery and continued for 35 days. Isolated tibias and femurs were examined by microcomputed tomography scanning (micro-CT) and histology and serum markers of bone turnover were measured...
September 2017: Physiological Reports
https://www.readbyqxmd.com/read/28905348/-a-rare-complication-of-transrectal-electrostimulation-for-sperm-retrieval
#5
Jürgen Pannek, Dirk Leuth, Jens Wöllner
In men who wish to have children after a spinal cord injury, assisted ejaculation is frequently needed for sperm retrieval. Transrectal electrostimulation (TES) is often used for this purpose. Typical side effects of TES are autonomic dysreflexia or pain. In a 33-year old man with complete tetraplegia below C6 since 2004, TES caused massive leg spasticity, leading to transcervical fracture of the femoral neck. This previously unreported complication of TES demonstrates that, in men with long-term chronic tetraplegia, spasticity and osteoporosis, TES in anesthesia should be taken into consideration...
September 13, 2017: Aktuelle Urologie
https://www.readbyqxmd.com/read/28777128/spinal-cord-injury-following-a-mild-trauma-in-homocystinuria-related-bone-frailty-neurorehabilitation-and-education-on-bone-health-management
#6
Ginny Varghese, Wafa Al Yazeedi, Mohammed Al Hamawi, Mohammed N Awad, Giorgio Ferriero, Elena Giovanazzi
Homocystinuria (HCU) is a rare autosomal recessive disease characterized by the deficiency of cystathionine β-synthetase, presenting with variable clinical features including micronutrient deficiency-related osteoporosis. Early-onset osteoporosis results in increased bone fragility, which is associated with low-impact fractures. To date, no traumatic myelopathy has ever been described in patients with HCU. This case report describes a 30-year-old male patient with HCU who was not aware that he was at high risk of sustaining debilitating bone fractures...
August 2, 2017: International Journal of Rehabilitation Research. Revue Internationale de Recherches de Réadaptation
https://www.readbyqxmd.com/read/28607522/agreement-between-fragility-fracture-risk-assessment-algorithms-as-applied-to-adults-with-chronic-spinal-cord-injury
#7
T Cervinka, C L Lynch, L Giangregorio, J D Adachi, A Papaioannou, L Thabane, B C Craven
STUDY DESIGN: Cross-sectional. OBJECTIVES: The objective of the study was to determine and report agreement in fracture risk stratification of adults with spinal cord injury (SCI) using (1) Canadian Association of Radiologists and Osteoporosis Canada (CAROC) and Canadian Fracture Risk Assessment (FRAX) tools with and without areal bone mineral density (aBMD) and (2) SCI-specific fracture thresholds. SETTING: Tertiary rehabilitation center, Ontario, Canada...
November 2017: Spinal Cord
https://www.readbyqxmd.com/read/28580511/effect-of-recent-spinal-cord-injury-on-the-opg-rankl-system-and-its-relationship-with-bone-loss-and-the-response-to-denosumab-therapy
#8
L Gifre, S Ruiz-Gaspà, J L Carrasco, E Portell, J Vidal, A Muxi, A Monegal, N Guañabens, P Peris
There is marked bone loss after spinal cord injury (SCI); however, its pathogenesis and clinical management remain unclear. The increased circulating levels of receptor activator of nuclear factor kB ligand (RANKL) associated with bone loss shortly after SCI and the prevention of bone loss with denosumab treatment suggest a contributory role of RANKL in SCI-induced osteoporosis. INTRODUCTION: Bone turnover and bone loss are markedly increased shortly after SCI. However, the pathogenesis and clinical management of this process remain unclear, especially the role of the osteoprotegerin (OPG)/RANKL system in this disorder...
June 4, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28545316/lower-extremity-fractures-in-patients-with-spinal-cord-injury-characteristics-outcome-and-risk-factors-for-non-unions
#9
Lukas Grassner, Barbara Klein, Doris Maier, Volker Bühren, Matthias Vogel
CONTEXT: Sublesional osteoporosis is an important sequel after spinal cord injury (SCI) resulting in a high incidence of fractures and impaired osseous healing due to altered bone metabolism. The following study aims to identify demographic characteristics and outcome of patients with SCI with lower extremity fractures. DESIGN: Retrospective observational study. SETTING: Level-I cross-regional trauma center. PARTICIPANTS: All patients with SCI suffering from osteoporotic/pathologic fractures during an 11-year-period (01/2003-12/2013) at the Center for Spinal Cord Injuries (Trauma Center Murnau) were analyzed via a chart review...
May 25, 2017: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/28497215/evidence-based-prevention-and-treatment-of-osteoporosis-after-spinal-cord-injury-a-systematic-review
#10
REVIEW
Saeed Soleyman-Jahi, Ali Yousefian, Radin Maheronnaghsh, Farhad Shokraneh, Shayan Abdollah Zadegan, Akbar Soltani, Seyed Mostafa Hosseini, Alexander R Vaccaro, Vafa Rahimi-Movaghar
PURPOSE: Spinal cord injury (SCI) results in accelerated bone mineral density (BMD) loss and disorganization of trabecular bone architecture. The mechanisms underlying post-SCI osteoporosis are complex and different from other types of osteoporosis. Findings of studies investigating efficacy of pharmacological or rehabilitative interventions in SCI-related osteoporosis are controversial. The aim of this study was to review the literature pertaining to prevention and evidence-based treatments of SCI-related osteoporosis...
May 11, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28488465/surgical-management-of-lower-limb-fractures-in-patients-with-spinal-cord-injury-less-associated-with-complications-than-non-operative-management-a-retrospective-series-of-cases
#11
Alban Fouasson-Chailloux, Raphael Gross, Marc Dauty, Guillaume Gadbled, Sophie Touchais, Marc Le Fort, Brigitte Perrouin-Verbe
OBJECTIVES: To evaluate the difference in terms of overall complications between surgical and non-surgical management of lower limb fractures in patients with chronic spinal cord injury (SCI). DESIGN: A 13-year retrospective study including patients with chronic spinal cord lesion admitted for sublesional lower limb fractures. SETTING: University hospital SCI reference departments (Rehabilitation department and orthopedic department). PARTICIPANTS: Forty patients with SCI were included, 24 men and 16 women...
May 10, 2017: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/28089422/low-magnitude-mechanical-signals-and-the-spine-a-review-of-current-and-future-applications
#12
REVIEW
Martin H Pham, Zorica Buser, Jeffrey C Wang, Frank L Acosta
Animal and human studies demonstrate the anabolic properties of low-magnitude mechanical stimulation (LMMS) in its ability to improve bone formation by enhancing the proliferation of mesenchymal stem cells and their subsequent commitment down an osteoblastic lineage. Response to mechanical strains as low as 10μɛ have been seen, illustrating the sensitivity of mechanosensory cells to mechanotransduction pathways. Applications to the spine include treatment of osteoporosis in preparation for instrumented fusion, fracture reduction in spinal cord injury patients to slow bone mineral density loss, and bone tissue engineering and enhancement of bone-implant osseointegration for pseudarthrosis and hardware failure...
June 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28078075/a-design-method-for-fes-bone-health-therapy-in-sci
#13
Brian Andrews, James Shippen, Monica Armengol, Robin Gibbons, William Holderbaum, William Harwin
FES assisted activities such as standing, walking, cycling and rowing induce forces within the leg bones and have been proposed to reduce osteoporosis in spinal cord injury (SCI). However, details of the applied mechanical stimulus for osteogenesis is often not reported. Typically, comparisons of bone density results are made after costly and time consuming clinical trials. These studies have produced inconsistent results and are subject to sample size variations. Here we propose a design process that may be used to predict the clinical outcome based on biomechanical simulation and mechano-biology...
September 15, 2016: European Journal of Translational Myology
https://www.readbyqxmd.com/read/27924381/dual-energy-x-ray-absorptiometry-and-fracture-prediction-in-patients-with-spinal-cord-injuries-and-disorders
#14
L Abderhalden, F M Weaver, M Bethel, H Demirtas, S Burns, J Svircev, H Hoenig, K Lyles, S Miskevics, L D Carbone
Low T-scores at the hip predict incident fractures in persons with a SCI. INTRODUCTION: Persons with a spinal cord injury (SCI) have substantial morbidity and mortality following osteoporotic fractures. The objective of this study was to determine whether dual-energy X-ray absorptiometry (DXA) measurements predict osteoporotic fractures in this population. METHODS: A retrospective historical analysis that includes patients (n = 552) with a SCI of at least 2 years duration who had a DXA performed and were in the VA Spinal Cord Disorders Registry from fiscal year (FY) 2002-2012 was performed...
March 2017: Osteoporosis International
https://www.readbyqxmd.com/read/27921146/bone-loss-at-the-distal-femur-and-proximal-tibia-in-persons-with-spinal-cord-injury-imaging-approaches-risk-of-fracture-and-potential-treatment-options
#15
REVIEW
C M Cirnigliaro, M J Myslinski, M F La Fountaine, S C Kirshblum, G F Forrest, W A Bauman
Persons with spinal cord injury (SCI) undergo immediate unloading of the skeleton and, as a result, have severe bone loss below the level of lesion associated with increased risk of long-bone fractures. The pattern of bone loss in individuals with SCI differs from other forms of secondary osteoporosis because the skeleton above the level of lesion remains unaffected, while marked bone loss occurs in the regions of neurological impairment. Striking demineralization of the trabecular epiphyses of the distal femur (supracondylar) and proximal tibia occurs, with the knee region being highly vulnerable to fracture because many accidents occur while sitting in a wheelchair, making the knee region the first point of contact to any applied force...
March 2017: Osteoporosis International
https://www.readbyqxmd.com/read/27764190/substance-p-promotes-the-proliferation-but-inhibits-differentiation-and-mineralization-of-osteoblasts-from-rats-with-spinal-cord-injury-via-rankl-opg-system
#16
Hai-Juan Liu, Hua Yan, Jun Yan, Hao Li, Liang Chen, Li-Ren Han, Xiao-Fei Yang
Spinal cord injury (SCI) causes a significant amount of bone loss, which results in osteoporosis (OP). The neuropeptide substance P (SP) and SP receptors may play important roles in the pathogenesis of OP after SCI. To identify the roles of SP in the bone marrow mesenchymal stem cell derived osteoblasts (BMSC-OB) in SCI rats, we investigated the expression of neurokinin-1 receptors (NK1R) in BMSC-OB and the effects of SP on bone formation by development of BMSC-OB cultures. Sixty young male Sprague-Dawley rats were randomized into two groups: SHAM and SCI...
2016: PloS One
https://www.readbyqxmd.com/read/27591786/treatment-with-hydrogen-sulfide-attenuates-sublesional-skeletal-deterioration-following-motor-complete-spinal-cord-injury-in-rats
#17
X Yang, D Hao, H Zhang, B Liu, M Yang, B He
Treatment with hydrogen sulfide mitigates spinal cord injury-induced sublesional bone loss, possibly through abating oxidative stress, suppressing MMP activity, and activating Wnt/β-catenin signaling. INTRODUCTION: Spinal cord injury (SCI)-induced sublesional bone loss represents the most severe osteoporosis and is resistant to available treatments to data. The present study was undertaken to explore the therapeutic potential of hydrogen sulfide (H2S) against osteoporosis in a rodent model of motor complete SCI...
February 2017: Osteoporosis International
https://www.readbyqxmd.com/read/27412619/wheelchair-use-and-lipophilic-statin-medications-may-influence-bone-loss-in-chronic-spinal-cord-injury-findings-from-the-frasci-bone-loss-study
#18
L R Morse, N Nguyen, R A Battaglino, A J Guarino, D R Gagnon, R Zafonte, E Garshick
We identified a protective bone effect at the knee with lipophilic statin use in individuals with chronic spinal cord injury. Lipophilic statin users gained bone at the knee compared to non-users and wheelchair users lost bone compared to walkers. Ambulation and or statins may be effective osteogenic interventions in chronic spinal cord injury (SCI). INTRODUCTION: SCI increases the risk of osteoporosis and low-impact fractures, particularly at the knee. However, during the chronic phase of SCI, the natural history and factors associated with longitudinal change in bone density remain poorly characterized...
December 2016: Osteoporosis International
https://www.readbyqxmd.com/read/27379763/spinal-fractures-in-patients-with-ankylosing-spondylitis
#19
REVIEW
Antonio Leone, Marzia Marino, Claudia Dell'Atti, Viola Zecchi, Nicola Magarelli, Cesare Colosimo
The ankylosed spine is prone to fracture even after minor trauma due to its changed biomechanical properties. The two central features of ankylosing spondylitis (AS) that promote the pathological remodeling of the spine are inflammation and new bone formation. AS is also associated with osteoporosis that is attributed to an uncoupling of the bone formation and bone resorption processes. Therefore, bone resorption occurs and promotes weakening of the spine as well as increased risk of vertebral fractures which can be hugely different in terms of clinical relevance...
October 2016: Rheumatology International
https://www.readbyqxmd.com/read/27359842/fes-rowing-and-long-term-reversal-of-osteoporosis-following-spinal-cord-injury-a-case-study-699-board-15-june-1-3-30-pm-5-00-pm
#20
Eziamaka C Okafor, Rajiv Gupta, David Estrada, J Andrew Taylor, Can Ozan Tan
No abstract text is available yet for this article.
May 2016: Medicine and Science in Sports and Exercise
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