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https://www.readbyqxmd.com/read/27921118/can-different-occlusal-positions-instantaneously-impact-spine-and-body-posture-a-pilot-study-using-rasterstereography-for-a-three-dimensional-evaluation
#1
Karoline März, Werner Adler, Ragai-Edward Matta, Linda Wolf, Manfred Wichmann, Bastian Bergauer
PURPOSE: Orthodontists influence dental occlusion directly. To suggest any link between dental occlusion and body posture is highly contentious, as evidenced by the literature. Rasterstereography, an optical technique that enables three-dimensional (3D) body measurements to be collected, has not yet been used to impartially examine whether different occlusal positions could instantaneously alter spine and body posture. We therefore set out to use this technique to nonsubjectively evaluate this question under static conditions...
December 5, 2016: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/27919581/the-impact-of-total-hip-arthroplasty-on-pelvic-motion-and-functional-component-position-is-highly-variable
#2
Denis Nam, Venessa Riegler, John C Clohisy, Ryan M Nunley, Robert L Barrack
BACKGROUND: This study's purpose was to determine the impact of THA implantation on pelvic motion, and to assess motion in patients with a history of lumbar fusion or prosthetic dislocation. METHODS: This was an IRB-approved, prospective investigation of 3 cohorts: (1) patients without a history of lumbar surgery undergoing THA (group A), (2) patients with a lumbar fusion (group B), and (3) patients with a THA prosthetic dislocation (group C). All patients received both standing and sitting lateral pelvis images to measure sacral slope and pelvic tilt in the sagittal plane...
November 15, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/27915585/the-impact-of-office-chair-features-on-lumbar-lordosis-intervertebral-joint-and-sacral-tilt-angles-a-radiographic-assessment
#3
Diana De Carvalho, Diane Grondin, Jack Callaghan
BACKGROUND: The purpose of this study was to determine which office chair feature is better at improving spine posture in sitting. METHOD: Participants (n=28) were radiographed in standing, maximum flexion and seated in four chair conditions: control, lumbar support, seat pan tilt and backrest with scapular relief. Measures of lumbar lordosis, intervertebral joint angles and sacral tilt were compared between conditions and sex. RESULTS: Sitting consisted of approximately 70% of maximum range of spine flexion...
December 3, 2016: Ergonomics
https://www.readbyqxmd.com/read/27911346/influence-of-pelvic-tilt-on-functional-acetabular-orientation
#4
Robert K Zahn, Sarah Grotjohann, Matthias Pumberger, Heiko Ramm, Stefan Zachow, Michael Putzier, Carsten Perka, Stephan Tohtz
BACKGROUND: Pelvic tilt influences acetabular orientation (AO). Anatomical AO can be measured in relation to the anterior pelvic plane (APP), functional AO can be calculated relative to table's plane. OBJECTIVE: To assess to what extent functional AO is determined by pelvic tilt and if APP and table plane give equal information for correct AO. METHODS: AO was evaluated by computed tomography (CT) scans of 138 patients. Pelvic tilt, anatomical and functional AO were measured, differences between the two reference planes were calculated...
November 25, 2016: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/27906744/reliability-of-sagittal-spinopelvic-alignment-measurements-after-total-hip-arthroplasty
#5
Katri Pernaa, Matti Seppänen, Keijo Mäkelä, Mikhail Saltychev
STUDY DESIGN: This is a observational study. OBJECTIVE: To evaluate the reliability of measuring sagittal spinopelvic alignment after hip arthroplasty. SUMMARY OF BACKGROUND DATA: Pelvic incidence (PI), sacral slope (SS), pelvic tilt (PT), and lumbar lordosis (LL) are widely used in planning the treatment of people with spinal and hip disorders. Previously, these measures have proved reliable when hip heads are intact. Thus far, it is not known whether they are also reliable after total hip replacement...
November 30, 2016: Clinical Spine Surgery
https://www.readbyqxmd.com/read/27893477/an-evaluation-of-agonist-antagonist-strength-ratios-and-posture-among-powerlifters
#6
Paul T Cutrufello, Stephen J Gadomski, Nicholas A Ratamess
Powerlifters routinely focus on three exercises: bench press, squat, and deadlift. This focus may predispose them to the development of muscle imbalances in either the upper or lower extremity which might also influence posture. Therefore, the purpose of the present study was to examine the agonist:antagonist strength ratios and their relationship to postural measures among powerlifters. An expost facto study design compared fifteen male powerlifters (35.3±13.7 years old) and fifteen age-matched controls (34...
November 16, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27889355/cervical-sagittal-alignment-in-adult-hyperkyphosis-treated-by-posterior-instrumentation-and-in-situ-bending
#7
F Paternostre, Y P Charles, E A Sauleau, J-P Steib
BACKGROUND: In the normal adult spine, a link between thoracolumbar and cervical sagittal alignment exists, suggesting adaptive cervical positional changes allowing horizontal gaze. In patients with thoracic hyperkyphosis, cervical adaptation to sagittal global alignment might be different from healthy individuals. However, this relationship has not clearly been reported in hyperkyphotic deformity. PURPOSE: The purpose of this study was to identify cervical sagittal alignment types observed on radiographs in young adults with thoracic hyperkyphosis...
November 23, 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/27879571/radiographic-predictors-for-mechanical-failure-following-adult-spinal-deformity-surgery-a-retrospective-cohort-study-in-138-patients
#8
Dennis Winge Hallager, Sven Karstensen, Naeem Bukhari, Martin Gehrchen, Benny Dahl
STUDY DESIGN: Retrospective cohort study at a single institution. OBJECTIVE: We aimed at estimating the rate of revision procedures and identify radiographic predictors of mechanical failure following adult spinal deformity surgery. SUMMARY OF BACKGROUND DATA: Mechanical failure rates following adult spinal deformity surgery range 12% to 37% in literature. While the importance of spinal and spino-pelvic alignment is well documented for surgical outcome and ideal alignment has been proposed as sagittal vertical axis (SVA) < 5 cm, pelvic tilt < 20° and lumbar lordosis (LL) = pelvic incidence ± 9°, the role of radiographic sagittal spine parameters and alignment targets as predictors for mechanical failure remains uncertain...
November 22, 2016: Spine
https://www.readbyqxmd.com/read/27877028/efficacy-of-a-trunk-orthosis-with-joints-providing-resistive-force-on-low-back-load-during-level-walking-in-elderly-persons
#9
Junji Katsuhira, Ko Matsudaira, Hiroyuki Oka, Shinno Iijima, Akihiro Ito, Tadashi Yasui, Arito Yozu
PURPOSE: The effects of lumbosacral and spinal orthoses on low back pain and gait are not exactly clear. We previously developed a trunk orthosis with joints providing resistive force on low back load to decrease such load, and confirmed its positive effects during level walking in healthy young adults. Therefore, we aimed to determine the efficacy of this trunk orthosis during level walking in healthy elderly subjects. METHODS: Fifteen community-dwelling elderly subjects performed level walking at a self-selected speed without an orthosis, with our orthosis, and with a lumbosacral orthosis...
2016: Clinical Interventions in Aging
https://www.readbyqxmd.com/read/27875416/comparison-of-structural-disease-burden-to-health-related-quality-of-life-scores-in-264-adult-spinal-deformity-patients-with-2-year-follow-up-novel-insights-into-drivers-of-disability
#10
Joshua Bakhsheshian, Justin K Scheer, Jeffrey L Gum, Lance Horner, Richard Hostin, Virginie Lafage, Shay Bess, Themistocles S Protopsaltis, Douglas C Burton, Malla Keefe, Robert A Hart, Gregory M Mundis, Christopher I Shaffrey, Frank Schwab, Justin S Smith, Christopher P Ames
STUDY DESIGN: This is a review of a prospective multicenter database. OBJECTIVE: To investigate the relationship between preoperative disability and sagittal deformity in patients with high Oswestry Disability Index (ODI) and no sagittal malalignment, or low ODI and high sagittal malalignment. SUMMARY OF BACKGROUND DATA: The relationship between ODI and sagittal malalignment varies between each adult spinal deformity (ASD) patient. METHODS: A prospective multicenter database of 365 patients with ASD undergoing surgical reconstruction was analyzed...
November 21, 2016: Clinical Spine Surgery
https://www.readbyqxmd.com/read/27871819/c7-sagittal-vertical-axis-is-the-determinant-of-the-c5-7-angle-in-cervical-sagittal-alignment
#11
Yoshitaka Matsubayashi, Hirotaka Chikuda, Yasushi Oshima, Yuki Taniguchi, Yoh Fujimoto, Takachika Shimizu, Sakae Tanaka
BACKGROUND CONTEXT: Previous studies have indicated that the T1 slope correlates with cervical lordosis. In contrast, the specific impact of C7 sagittal vertical axis (C7SVA) on cervical lordosis remains unknown. PURPOSE: This study aimed to investigate the specific role of C7SVA in cervical lordosis. STUDY DESIGN/SETTING: This was a retrospective radiographic study. PATIENT SAMPLE: 48 consecutive patients who underwent lateral standing radiography of the entire spine were retrospectively reviewed OUTCOME MEASURES: Radiographic parameters included occipito (Oc) -C7, Oc-C2, C2-7, C2-4, and C5-7 angles; T1 slope; C7SVA; T1 pelvic angle; pelvic incidence; pelvic tilt; and sacral slope...
November 15, 2016: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/27864681/are-sagittal-spinopelvic-radiographic-parameters-significantly-associated-with-quality-of-life-of-adult-spinal-deformity-patients-multivariate-linear-regression-analyses-for-pre-operative-and-short-term-post-operative-health-related-quality-of-life
#12
Mitsuru Takemoto, Louis Boissière, Jean-Marc Vital, Ferran Pellisé, Francisco Javier Sanchez Perez-Grueso, Frank Kleinstück, Emre R Acaroglu, Ahmet Alanay, Ibrahim Obeid
PURPOSE: To evaluate the association in ASD patients between spinopelvic sagittal parameters and health-related quality of life (HRQL), adjusted for demographic and surgical variables. METHODS: We constructed multiple linear regression models to investigate pre-operative (PreOp) and 6-month post-operative (PostOp) HRQL as assessed by the Oswestry Disability Index (ODI), with sagittal parameters as independent variables adjusted for potential confounders, such as age, sex, body mass index, past spine surgery, types of surgical treatment, and complications...
November 18, 2016: European Spine Journal
https://www.readbyqxmd.com/read/27861359/characterization-of-radiographic-features-of-consecutive-lumbar-spondylolisthesis
#13
Yapeng Sun, Hui Wang, Dalong Yang, Nan Zhang, Sidong Yang, Wei Zhang, Wenyuan Ding
Radiographic features of consecutive lumbar spondylolisthesis were retrospectively analyzed in a total of 17 patients treated for this condition at the Third Hospital of Hebei Medical University from June 2005 to March 2012.To investigate the radiographic features, pelvic compensatory mechanisms, and possible underlying etiologies of consecutive lumbar spondylolisthesis.To the best of our knowledge, there is no previous report concerning the characteristics of consecutive lumbar spondylolisthesis.The Taillard index and the lumbar lordosis (LL), pelvic incidence (PI), sacrum slope (SS), and pelvic tilt (PT) were determined on lateral X-ray images, and the angular displacement was analyzed on flexion-extension X-ray images...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27858683/the-correlation-between-radiographic-and-surface-topography-assessments-in-three-plane-pelvic-parameters
#14
Neveen A Abdel Raoof, Kadrya H Battecha, Salah Eldin B Elsayed, Elsadat Saad Soliman
BACKGROUND: Noninvasive rasterstereography has been reported as a helpful tool for assessing pelvic parameters. However, the validation and reproducibility of this tool are still questionable. OBJECTIVE: To investigate the correlation between video rasterstereography device (VRD) and X-ray photography in terms of validity and reproducibility (inter- and intra-examiner reliability) in pelvic parameters. METHODS: Thirty male and female healthy subjects with a mean age (26...
November 11, 2016: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/27858241/repeated-posterior-dislocation-of-total-hip-arthroplasty-after-spinal-corrective-long-fusion-with-pelvic-fixation
#15
Hiroki Furuhashi, Daisuke Togawa, Hiroshi Koyama, Hironobu Hoshino, Tatsuya Yasuda, Yukihiro Matsuyama
PURPOSE: Several reports have indicated that anterior dislocation of total hip arthroplasty (THA) can be caused by spinal degenerative changes with excessive pelvic retroversion. However, no reports have indicated that posterior dislocation can be caused by fixed pelvic anteversion after corrective spine surgery. We describe a rare case experiencing repeated posterior THA dislocation that occurred at 5 months after corrective spinal long fusion with pelvic fixation. METHODS: A 64-year-old woman had undergone bilateral THA at 13 years before presenting to our institution...
November 17, 2016: European Spine Journal
https://www.readbyqxmd.com/read/27847576/surgical-outcomes-of-post-fusion-lumbar-flatback-deformity-with-sagittal-imbalance
#16
Jin Seong Kim, Sung Min Kim
OBJECTIVES: To review surgical results of post-fusion lumbar flatback treated with pedicle subtraction osteotomy (PSO) or Smith-Petersen osteotomies (SPOs). METHODS: Twenty-eight patients underwent osteotomies. Radiological outcomes by sagittal vertical axis (SVA), and pelvic tilt (PT), T1 pelvic angle (T1PA), and pelvic incidence (PI)-lumbar lordosis (LL) at preoperative, postoperative 1 month, and final were evaluated. Oswestry Disability Index (ODI), visual analog scale (VAS) score of back pain/leg pain, and Scoliosis Research Society-22 score (SRS-22r) were analyzed and compared...
November 2016: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/27831987/development-of-validated-computer-based-preoperative-predictive-model-for-proximal-junction-failure-pjf-or-clinically-significant-pjk-with-86-accuracy-based-on-510-asd-patients-with-2-year-follow-up
#17
Justin K Scheer, Joseph A Osorio, Justin S Smith, Frank Schwab, Virginie Lafage, Robert A Hart, Shay Bess, Breton Line, Bassel G Diebo, Themistocles S Protopsaltis, Amit Jain, Tamir Ailon, Douglas C Burton, Christopher I Shaffrey, Eric Klineberg, Christopher P Ames
STUDY DESIGN: A retrospective review of large, multicenter adult spinal deformity (ASD) database. OBJECTIVE: The aim of this study was to build a model based on baseline demographic, radiographic, and surgical factors that can predict clinically significant proximal junctional kyphosis (PJK) and proximal junctional failure (PJF). SUMMARY OF BACKGROUND DATA: PJF and PJK are significant complications and it remains unclear what are the specific drivers behind the development of either...
November 15, 2016: Spine
https://www.readbyqxmd.com/read/27831984/baseline-patient-reported-outcomes-correlate-weakly-with-radiographic-parameters-a-multicenter-prospective-nih-adult-symptomatic-lumbar-scoliosis-study-of-286-patients
#18
Todd M Chapman, Christine R Baldus, Jon D Lurie, Steven D Glassman, Frank J Schwab, Christopher I Shaffrey, Virginie Lafage, Oheneba Boachie-Adjei, Han J Kim, Justin S Smith, Charles H Crawford, Lawrence G Lenke, Jacob M Buchowski, Charles Edwards, Tyler Koski, Stefan Parent, Stephen Lewis, Daniel G Kang, Jamal McClendon, Lionel Metz, Lukas P Zebala, Michael P Kelly, Kevin F Spratt, Keith H Bridwell
STUDY DESIGN: Prospective, cross-sectional study. OBJECTIVE: The aim of the study was to determine which radiographic parameters drive patient-reported outcomes (PROs) in primary presentation adult symptomatic lumbar scoliosis (ASLS). SUMMARY OF BACKGROUND DATA: Previous literature suggests correlations between PROs and sagittal plane deformity (sagittal vertical axis [SVA], pelvic incidence-lumbar lordosis [PI-LL] mismatch, pelvic tilt [PT])...
November 15, 2016: Spine
https://www.readbyqxmd.com/read/27821944/influence-of-sacral-sitting-in-a-wheelchair-on-the-distribution-of-contact-pressure-on-the-buttocks-and-back-and-shear-force-on-the-ischial-region
#19
Tadahiko Kamegaya
[Purpose] The purpose of this study was to investigate the influence of sacral sitting in a wheelchair on contact pressure on the buttocks and back, and shear force on the ischial region. [Subjects and Methods] Twenty-six healthy adults assumed two postures while seated in a wheelchair: a basic sitting posture, and sacral sitting with the pelvis tilted posteriorly and the ischium slid forward by 5 cm relative to its position in the basic sitting posture. The inclination angle of the sagittal pelvic line, contact pressures and contact areas on the buttocks and back, and the shear force generated by sliding the ischial region forward were measured...
October 2016: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/27821936/the-change-of-pain-and-lumbosacral-sagittal-alignment-after-sling-exercise-therapy-for-patients-with-chronic-low-back-pain
#20
Hee Sook Roh, Won Je Cho, Won Jong Ryu, Seung Jin Park, Chang Sik An
[Purpose] This study was conducted to quantify the effect of sling exercise therapy in the recovery of lumbosacral sagittal alignment (LSA) and in the control of low back pain. [Subjects and Methods] A total of 102 chronic low back pain patients were divided into two groups, a physical therapy group and a sling exercise group. In both groups, programs were conducted thrice a week for twelve weeks. With respect to LSA, pelvic tilt (PT), sacral slope (SS), and pelvic incidence (PI) were measured with plain radiography...
October 2016: Journal of Physical Therapy Science
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