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https://www.readbyqxmd.com/read/28777063/comprehensive-biomechanical-analysis-of-three-reconstruction-techniques-following-total-sacrectomy-an-in-vitro-human-cadaveric-model
#1
Mohamed Macki, Rafael De la Garza-Ramos, Ashley A Murgatroyd, Kenneth P Mullinix, Xiaolei Sun, Bryan W Cunningham, Brandon A McCutcheon, Mohamad Bydon, Ziya L Gokaslan
OBJECTIVE Aggressive sacral tumors often require en bloc resection and lumbopelvic reconstruction. Instrumentation failure and pseudarthrosis remain a clinical concern to be addressed. The objective in this study was to compare the biomechanical stability of 3 distinct techniques for sacral reconstruction in vitro. METHODS In a human cadaveric model study, 8 intact human lumbopelvic specimens (L2-pelvis) were tested for flexion-extension range of motion (ROM), lateral bending, and axial rotation with a custom-designed 6-df spine simulator as well as axial compression stiffness with the MTS 858 Bionix Test System...
August 4, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28774219/nonoperative-management-and-rehabilitation-of-osteitis-pubis-pubic-bone-stress-in-professional-soccer-players-a-report-of-5-cases
#2
Stephen S McAleer, Ed Lippie, Darcy Norman, Helge Riepenhof
Study Design Case series. Background Pubic bone stress (PBS) is a common acute or chronic response of the pelvis in sports where sprinting, kicking, twisting and cutting are the dominant movements. Little literature exists regarding non-operative rehabilitation strategies for the condition and the outcome of conservative treatment has not been documented. Case Description Five professional and aspiring professional soccer players complaining of pubic symphysis pain, confirmed as PBS on magnetic resonance imaging and objective assessment...
August 3, 2017: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/28750964/comparison-of-ischemic-compression-and-lumbopelvic-manipulation-as-trigger-point-therapy-for-patellofemoral-pain-syndrome-in-young-adults-a-double-blind-randomized-clinical-trial
#3
Shabnam Behrangrad, Fahimeh Kamali
OBJECTIVE: To compare the effectiveness of ischemic compression (IC) directly to the vastus medialis obliquus (VMO) versus lumbopelvic manipulation (LPM) in improving pain, functional status and sensitivity to mechanical stimulation of the VMO trigger point in patients with patellofemoral pain syndrome (PFPS). PARTICIPANTS: 40 patients with unilateral PFPS aged 20-30 years were selected randomly among patients with unilateral PFPS referred to physical therapy clinics of Shiraz University of Medical Sciences in Shiraz, Iran, between March 2014 and July 2014...
July 2017: Journal of Bodywork and Movement Therapies
https://www.readbyqxmd.com/read/28733847/posterior-only-approach-for-fifth-lumbar-corpectomy-indications-and-technical-notes
#4
Belal Elnady, Ahmad Shawky, Hamdan Abdelrahman, Essam Elmorshidy, Mohamed El-Meshtawy, Galal Zaki Said
PURPOSE: To evaluate the efficacy and safety of a posterior-only approach for L5 corpectomy, with lumbopelvic fixation for treatment of secondaries, infections, or burst fractures. METHODS: Between 2010 and 2013, 17 patients with L5 pathology had corpectomy through a posterior-only approach, with reconstruction of the anterior column using titanium cages filled with bone graft. The indication for surgery was presence of secondaries in nine patients, spondylitis and spondylodiscitis in five patients and burst fractures due to high energy trauma in three patients...
July 21, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28686145/minimally-invasive-dual-iliac-screw-dual-rod-fixation-in-a-rare-case-of-pathological-sacral-fracture-from-a-paraganglionoma-a-technique-description
#5
Muhammed Yaser Hasan, Gabriel Liu
The management of lumbosacral neoplastic disease can be demanding, often requiring complex reconstruction. In the context of extensive sacral involvement, the risk of iliac screw breakage is greater. Few studies advocate the use of dual iliac screw techniques to reduce implant failure. In this report, the authors have described the first case of percutaneous dual iliac screw, dual rod insertion as part of a minimally invasive spinopelvic stabilization in a patient with a sacral fracture from a paraganglionoma...
July 7, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28668552/the-effect-of-an-8-week-stabilization-exercise-program-on-the-lumbopelvic-rhythm-and-flexion-relaxation-phenomenon
#6
Ali Shahvarpour, Sharon M Henry, Richard Preuss, Hakim Mecheri, Christian Larivière
BACKGROUND: Lumbar stabilization exercise programs should normalize the aberrant movements patterns often observed in patients with low back pain. This study aimed to determine the effect of an 8-week lumbar stabilization program on EMG/kinematics measures of the aberrant movement patterns in such patients. A secondary goal was to assess the 8-week test-retest reliability of these measures. METHODS: The patients followed an 8-week lumbar stabilization program while no intervention was carried out on the controls...
June 23, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28645452/thrust-magnitudes-rates-and-3-dimensional-directions-delivered-in-simulated-lumbar-spine-high-velocity-low-amplitude-manipulation
#7
Edward F Owens, Ronald S Hosek, Linda Mullin, Lydia Dever, Stephanie G B Sullivan, Brent S Russell
OBJECTIVES: The purpose of this study was to measure faculty performance of simulated spinal manipulation on a mannequin to help identify teaching standards. METHODS: We measured 3-dimensional transmitted loads using a force plate mounted in the table. Thrusts were delivered through a compliant, jointed mannequin by faculty members along predefined "listings" as taught in lumbopelvic technique courses. RESULTS: Eleven chiropractic faculty members participated, delivering 9 thrusts at 3 loads (light, moderate, and heavy) along 9 different prone and side-posture listings, totaling 81 thrusts per participant...
June 20, 2017: Journal of Manipulative and Physiological Therapeutics
https://www.readbyqxmd.com/read/28593199/analysis-of-instrumentation-failures-after-three-column-osteotomies-of-the-spine
#8
Niranjan Kavadi, Richard A Tallarico, William F Lavelle
BACKGROUND: Correction of fixed spinal imbalance in a sagittal and/or coronal plane frequently needs a tricolumnar wedge resection when the deformity is rigid. Complications associated with deformity correction surgery are pseudoarthrosis and implant failure located along the construct. The purposes of this study were to assess comparative rates of pseudoarthrosis (implant failure) at weaker points along lumbosacral junction and level of osteotomy, estimate overall incidence of implant failure, and comparatively analyze failures at different points along the construct...
2017: Scoliosis and Spinal Disorders
https://www.readbyqxmd.com/read/28538856/-an-adolescent-with-lumbosacral-instability-due-to-the-presence-of-a-hydatid-cyst-a-case-report
#9
Miguel Vizcarra, Mijaíl Mujica, Vladimir Sánchez, Paul Méndez
Hydatidosis, caused by Echinococcus granulosus, affects the spinal column in 0.5-2% of all cases, with the sacral column being a rare location typically observed only in adults. The case is reported of a 14-year-old boy from Juliaca (Puno, Peru) who presented with chronic lower back pain and cauda equina syndrome. He was initially attended to in Juliaca, and then transferred to the Hospital Edgardo Rebagliati Martins (Lima, Peru) with a diagnosis of sacral tumor. In magnetic resonance imaging, a multicystic tumor was seen with L5 and S1 lysis and instability...
January 2017: Revista Peruana de Medicina Experimental y Salud Pública
https://www.readbyqxmd.com/read/28538444/changes-in-cervical-alignment-after-multilevel-schwab-grade-ii-thoracolumbar-osteotomies-for-adult-spinal-deformity
#10
George M Ghobrial, Nathan H Lebwohl, Barth A Green, Joseph P Gjolaj
STUDY DESIGN: Retrospective Cohort OBJECTIVE.: To describe changes in cervical alignment(CA) and deformity (CD) after multilevel Schwab Grade II Osteotomies for adult spinal deformity (ASD). SUMMARY OF BACKGROUND DATA: Reciprocal cervical and global changes after ASD surgery have not been previous described in the setting of multilevel osteotomy. METHODS: Patients with long-segment (> 5 levels) fusion and osteotomy for ASD were radiographically evaluated...
May 19, 2017: Spine
https://www.readbyqxmd.com/read/28538303/examining-fundamental-movement-competency-and-closed-chain-upper-extremity-dynamic-balance-in-swimmers
#11
Garrett S Bullock, Nate Brookreson, Amy M Knab, Robert J Butler
Abnormal fundamental movement patterns and upper-quarter dynamic balance are proposed mechanisms affecting athletic performance and injury risk. There are few studies investigating functional movement and closed-chain upper-extremity dynamic stability in swimmers. The purpose of this study was to determine differences in fundamental movement competency and closed-chain upper-extremity dynamic balance, using the Functional Movement Screen (FMS) and Upper-Quarter Y Balance Test (YBT-UQ), of high school (HS; n = 70) and collegiate (COL; n = 70) swimmers...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28537819/movement-control-tests-for-the-lumbopelvic-complex-are-these-tests-reliable-and-valid
#12
Hannah Granström, Björn O Äng, Eva Rasmussen-Barr
This study evaluated inter- and intra-observer reliability and discriminative validity of three movement control tests: 1) standing knee-lift test; 2) static lunge test; and 3) dynamic lunge test. Thirty-eight subjects, 21 with low-back pain and 17 healthy, were video-recorded while performing the tests. Four physical therapists scored the tests according to a standardized protocol and calculated a composite score for each test based on the number of incorrect test components. Inter-observer reliability for the composite scores ranged between 0...
May 2017: Physiotherapy Theory and Practice
https://www.readbyqxmd.com/read/28531793/disrupted-body-image-and-pregnancy-related-lumbopelvic-pain-a-preliminary-investigation
#13
Benedict M Wand, Rhianne L Elliott, Abbey E Sawyer, Rory Spence, Darren J Beales, Peter B O'Sullivan, Anne J Smith, William Gibson
BACKGROUND: Recent investigations have suggested that disrupted body-image may contribute to the lumbopelvic pain experience. The changes in body shape and size associated with pregnancy suggest that pregnancy-related lumbopelvic pain might be a problem in which alterations in body-image are particularly relevant. OBJECTIVES: To investigate if self-reported body-image is related to lumbopelvic pain status in women during pregnancy and explore the factors that might contribute to changes in body-image in women experiencing pregnancy-related lumbopelvic pain...
May 17, 2017: Musculoskeletal Science & Practice
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
#14
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/28521951/validation-of-the-anybody-full-body-musculoskeletal-model-in-computing-lumbar-spine-loads-at-l4l5-level
#15
Tito Bassani, Elena Stucovitz, Zhihui Qian, Matteo Briguglio, Fabio Galbusera
In the panorama of available musculoskeletal modeling software, AnyBody software is a commercial tool that provides a full body musculoskeletal model which is increasingly exploited by numerous researchers worldwide. In this regard, model validation becomes essential to guarantee the suitability of the model in representing the simulated system. When focusing on lumbar spine, the previous works aimed at validating the AnyBody model in computing the intervertebral loads held several limitations, and a comprehensive validation is to be considered as lacking...
May 5, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28458065/outcomes-of-lumbopelvic-fixation-in-the-treatment-of-complex-sacral-fractures-using-minimally-invasive-surgical-techniques
#16
Ehsan Jazini, Tristan Weir, Emeka Nwodim, Oliver Tannous, Comron Saifi, Nicholas Caffes, Timothy Costales, Eugene Koh, Kelley Banagan, Daniel Gelb, Steven C Ludwig
BACKGROUND CONTEXT: Complex sacral fractures with vertical and anterior pelvic ring instability treated with traditional fixation methods are associated with high rates of failure and poor clinical outcomes. Supplemental lumbopelvic fixation (LPF) has been applied for additional stability to help with fracture union. PURPOSE: The study aimed to determine whether minimally invasive LPF provides reliable fracture stability and acceptable complication rates in cases of complex sacral fractures...
April 27, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28453451/sensitivity-for-palpating-lumbopelvic-soft-tissues-and-bony-landmarks-and-its-associated-factors-a-single-blinded-diagnostic-accuracy-study
#17
A P A Ferreira, L C Póvoa, J F C Zanier, D C Machado, A S Ferreira
BACKGROUND: Evidence on the diagnostic performance of palpatory methods and possible confounding factors is scarce. OBJECTIVES: To examine the sensitivity of palpatory methods for location of lumbopelvic landmarks and to assess its association with personal characteristics. METHODS: Eighty-three participants (41 men, 55.6 (16.5) years, 25.9 (4.8) kg/m2 [mean (SD)]) were enrolled in this single-blinded study. Fourteen body and softy-tissue landmarks were sequentially palpated from the spinous process of L4 to the ischial tuberosity...
April 21, 2017: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/28427725/association-of-mild-leg-length-discrepancy-and-degenerative-changes-in-the-hip-joint-and-lumbar-spine
#18
Kelvin J Murray, Tom Molyneux, Michael R Le Grande, Aurora Castro Mendez, Franz K Fuss, Michael F Azari
OBJECTIVE: The purpose of this study was to evaluate the correlation between mild leg length discrepancy (LLD) and degenerative joint disease (DJD) or osteoarthritis. METHODS: We evaluated standard postural lumbopelvic radiographs from 255 adults (121 women and 134 men) who had presented with spinal pain for chiropractic care. Symmetry of femoral head diameters was used to exclude magnification errors. Pearson's partial correlation was used to control for age and derive effect sizes for LLD on DJD in the hip and lower lumbar motion segments...
June 2017: Journal of Manipulative and Physiological Therapeutics
https://www.readbyqxmd.com/read/28413116/trunk-muscle-emg-during-intermediate-pilates-mat-exercises-in-beginner-healthy-and-chronic-low-back-pain-individuals
#19
Ivye L R Pereira, Bergson Queiroz, Jefferson Loss, César Amorim, Isabel C N Sacco
OBJECTIVE: The purpose of this study was to compare the electromyographic pattern of core muscles during intermediate Pilates mat exercises between healthy people and those with low back pain. METHODS: We evaluated healthy participants (n = 19; mean ± standard deviation [SD]: age 28 ± 8 years, body mass 65 ± 10 kg, height 160.0 ± 9.1 cm) and a low back pain group (n = 13; mean ± SD: age 30 ± 9 years, body mass 67 ± 12 kg, height 170.0 ± 6.6 cm). Electromyographic analysis assessed the multifidus, external oblique, internal oblique, and rectus abdominis muscles during classical Pilates exercises (single leg stretch, criss-cross, and dead bug)...
April 13, 2017: Journal of Manipulative and Physiological Therapeutics
https://www.readbyqxmd.com/read/28371661/applying-an-active-lumbopelvic-control-strategy-during-lumbar-extension-exercises-effect-on-muscle-recruitment-patterns-of-the-lumbopelvic-region
#20
Jessica Van Oosterwijck, Eline De Ridder, Andry Vleeming, Guy Vanderstraeten, Stijn Schouppe, Lieven Danneels
OBJECTIVE: Examine whether implementing an active lumbopelvic control strategy during high load prone lumbar extension exercises affects posterior extensor chain recruitment and lumbopelvic kinematics. METHODS: Thirteen healthy adults acquired an optimal active lumbopelvic control strategy during guided/home-based training sessions. During the experimental session electromyography was used to evaluate the activity of the posterior extensor chain muscles during high load trunk/bilateral leg extension exercises with/without application of the strategy...
March 31, 2017: Human Movement Science
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