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https://www.readbyqxmd.com/read/28068837/immediate-effects-of-acupuncture-treatment-on-intra-and-inter-limb-contributions-to-body-support-during-gait-in-patients-with-bilateral-medial-knee-osteoarthritis
#1
Yen-Hung Liu, I-Pin Wei, Ting-Ming Wang, Tung-Wu Lu, Jaung-Geng Lin
Knee osteoarthritis (OA) often leads to altered balance control, joint motion and loading patterns during gait. Acupuncture has been proven to be effective in pain relief but its effects on inter-joint load-sharing for body balance have not been reported. The current study bridged the gap by quantifying the immediate effects of acupuncture on the inter-joint and inter-limb load-sharing in patients with knee OA during level walking in terms of the total support moment (Ms) and the contribution of individual joints to the total support moment...
January 9, 2017: American Journal of Chinese Medicine
https://www.readbyqxmd.com/read/28065623/an-anatomic-investigation-into-the-relationship-between-posterior-condylar-offset-and-posterior-tibial-slope-of-one-thousand-one-hundred-thirty-eight-cadaveric-knees
#2
Douglas S Weinberg, Jeremy J Gebhart, Glenn D Wera
BACKGROUND: Posterior condylar offset (PCO) and posterior tibial slope (PTS) have critical consequences in total knee arthroplasty, especially with regards to sagittal plane balancing. However, there has only been limited investigation into the functional consequences of each, and there have only been anecdotal observations regarding any associations between PCO and PTS. METHODS: In a large osteological study of 1138 knees, standardized measurements of PCO and PTS were taken using previously described techniques on specimens of different age, race, and gender...
December 22, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28061490/comparative-analysis-between-total-disc-replacement-and-posterior-foraminotomy-for-posterolateral-soft-disc-herniation-with-unilateral-radiculopathy-clinical-and-biomechanical-results-of-a-minimum-5-years-follow-up
#3
Kyoung-Tae Kim, Dae-Chul Cho, Joo-Kyung Sung, Young-Baeg Kim, Du Hwan Kim
OBJECTIVE: To compare the clinical outcomes and biomechanical effects of total disc replacement (TDR) and posterior cervical foraminotomy (PCF) and to propose relative inclusion criteria. METHODS: Thirty-five patients who underwent surgery between 2006 and 2008 were included. All patients had single-level disease and only radiculopathy. The overall sagittal balance and angle and height of a functional segmental unit (FSU; upper and lower vertebral body of the operative lesion) were assessed by preoperative and follow-up radiographs...
January 1, 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28060179/uniplanar-versus-fixed-pedicle-screws-in-the-correction-of-thoracic-kyphosis-in-the-treatment-of-adolescent-idiopathic-scoliosis-ais
#4
Siddharth A Badve, Ryan C Goodwin, David Gurd, Thomas Kuivila, Swamy Kurra, William F Lavelle
BACKGROUND: The aim of surgical treatment of scoliosis is to obtain fusion of the spinal column, balanced in the coronal and sagittal planes. Great success has been attained with coronal correction; however, the sagittal profile has received less attention, resulting in little correction of sagittal plane alignment. The purpose of this study was to compare uniplanar and fixed pedicle screws in the correction of the thoracic sagittal alignment in the treatment of adolescent idiopathic scoliosis (AIS)...
January 5, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28059685/resolution-of-the-more-anteriorly-positioned-psoas-muscle-following-correction-of-spinal-sagittal-alignment-from-spondylolisthesis-case-report
#5
Hasan R Syed, Kurt Yaeger, Faheem A Sandhu
Several studies have described the radiographic, histological, and morphological changes to the paraspinal muscle in patients with chronic low-back pain due to degenerative diseases of the spine. Gross anatomical illustrations have shown that the psoas muscle lies lateral to the L4-5 vertebrae and subsequently thins and dissociates from the vertebral body at L5-S1 in a ventrolateral course. A "rising psoas" may influence the location of the lumbar plexus and result in transient neurological injury on lateral approach to the spine...
January 6, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28059683/spinopelvic-sagittal-imbalance-as-a-risk-factor-for-adjacent-segment-disease-after-single-segment-posterior-lumbar-interbody-fusion
#6
Tomiya Matsumoto, Shinya Okuda, Takafumi Maeno, Tomoya Yamashita, Ryoji Yamasaki, Tsuyoshi Sugiura, Motoki Iwasaki
OBJECTIVE The importance of spinopelvic balance and its implications for clinical outcomes after spinal arthrodesis has been reported in recent studies. However, little is known about the relationship between adjacent-segment disease (ASD) after lumbar arthrodesis and spinopelvic alignment. The purpose of this study was to clarify the relationship between spinopelvic radiographic parameters and symptomatic ASD after L4-5 single-level posterior lumbar interbody fusion (PLIF). METHODS This was a retrospective 1:5 matched case-control study...
January 6, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28048894/su-f-i-58-image-quality-comparisons-of-different-motion-magnitudes-and-tr-values-in-mr-pet
#7
J Patrick, M Tavallaei, R Thompson, R Stodilka, M Drangova, S Gaede
PURPOSE: The aim of this work is to evaluate the accuracy and sensitivity of a respiratory-triggered MR-PET protocol in detecting four different sized lesions at two different magnitudes of motion, with two different TR values, using a novel PET-MR-CT compatible respiratory motion phantom. METHODS: The eight-compartment torso phantom was setup adjacent to the motion stage, which moved four spherical compartments (28, 22, 17, 10 mm diameter) in two separate (1 and 2 cm) linear motion profiles, simulating a 3...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28038696/predictors-for-postoperative-shoulder-balance-in-lenke-1-adolescent-idiopathic-scoliosis-a-prospective-cohort-study
#8
Alberto O Gotfryd, Maria Fernanda Silber Caffaro, Robert Meves, Osmar Avanzi
STUDY DESIGN: Prospective cohort. OBJECTIVES: To determine the predictors of the shoulder balance after main thoracic (MT) fusion in patients with Lenke 1 adolescent idiopathic scoliosis (AIS). SUMMARY OF BACKGROUND DATA: Imbalanced shoulders are a major cause of dissatisfaction in AIS patients. In Lenke 1 curves, MT curve fusion is supposed to lead to spontaneous correction of the proximal thoracic (PT) curve and thereby promote shoulder balance...
January 2017: Spine Deformity
https://www.readbyqxmd.com/read/28032226/posterior-corrective-surgery-for-moderate-to-severe-focal-kyphosis-in-the-thoracolumbar-spine-57-cases-with-minimum-3%C3%A2-years-follow-up
#9
Yan Zeng, Xiaochen Qu, Zhongqiang Chen, Xiaoxi Yang, Zhaoqing Guo, Qiang Qi, Weishi Li, Chuiguo Sun
PURPOSE: To evaluate the radiological and clinical outcomes of the corrective surgery for patients with moderate to severe focal kyphosis in thoracolumbar spine. METHODS: Fifty-seven patients with moderate to severe focal kyphosis of the thoracolumbar spine underwent apical segmental resection osteotomy with dual axial rotation correction at our hospital. There were 30 male and 27 female patients. The mean age was 34.3 years. The kyphosis level radiographs were obtained from each patient before surgery, immediately after surgery and at follow-up...
December 28, 2016: European Spine Journal
https://www.readbyqxmd.com/read/28032224/asymmetric-c7-pedicle-subtraction-osteotomy-for-correction-of-rigid-cervical-coronal-imbalance-secondary-to-post-traumatic-heterotopic-ossification-a-case-report-description-of-a-novel-surgical-technique-and-literature-review
#10
Alexander A Theologis, Kate D Bellevue, Erion Qamirani, Christopher P Ames, Vedat Deviren
PURPOSE: Deformities of the cervical spine are uncommon in the coronal plane. In this report, a unique case of a 31-year-old male with a fixed, 30° left coronal deformity due to heterotopic ossification 3 years status post poly-trauma was treated with an asymmetric C7 pedicle subtraction osteotomy (PSO). METHODS: Case report. RESULTS: Pre-operatively, the patient had a fixed 45-degree left tilt of his neck and radiographs demonstrated a rigid 30° scoliosis, 7 cm coronal imbalance, and 4 cm negative sagittal balance, diffuse bridging bone between the spinous processes and the facet joints of C5 to T1 bilaterally...
December 28, 2016: European Spine Journal
https://www.readbyqxmd.com/read/28028648/expansive-open-door-laminoplasty-versus-laminectomy-and-instrumented-fusion-for-cases-with-cervical-ossification-of-the-posterior-longitudinal-ligament-and-straight-lordosis
#11
Xiaowei Liu, Yu Chen, Haisong Yang, Tiefeng Li, Bin Xu, Deyu Chen
PURPOSE: To identify whether expansive open-door laminoplasty (Lam) is more appropriate than laminectomy and instrumented fusion (LIF) for cases with ossification of the posterior longitudinal ligament (OPLL) and straight cervical lordosis. METHODS: A total of 67 cases were included and divided into Group Lam (n = 32) and Group LIF (n = 35), and the mean follow-up periods were 38 and 42 months, respectively. The cervical lordosis was elevated by C2-7 Cobb angle and cervical sagittal balance by C2-C7 sagittal vertical axis (SVA)...
December 27, 2016: European Spine Journal
https://www.readbyqxmd.com/read/28028646/first-clinical-results-of-minimally-invasive-vector-lumbar-interbody-fusion-mis-vlif-in-spondylodiscitis-and-concomitant-osteoporosis-a-technical-note
#12
Bernhard Rieger, Hongzhen Jiang, Daniel Ruess, Clemens Reinshagen, Marek Molcanyi, Jozef Zivcak, Huaiyu Tong, Gabriele Schackert
PURPOSE: First description of MIS-VLIF, a minimally invasive lumbar stabilization, to evaluate its safety and feasibility in patients suffering from weak bony conditions (lumbar spondylodiscitis and/or osteoporosis). METHODS: After informed consent, 12 patients suffering from lumbar spondylodiscitis underwent single level MIS-VLIF. Eight of them had a manifest osteoporosis, either. Pre- and postoperative clinical status was documented using numeric rating scale (NRS) for leg and back pain...
December 27, 2016: European Spine Journal
https://www.readbyqxmd.com/read/28025151/normative-3d-acetabular-orientation%C3%A2-measurements-by-the-low-dose-eos-imaging-system-in-102-asymptomatic-subjects-in-standing-position-analyses-by-side-gender-pelvic-incidence-and-reproducibility
#13
Thomas Thelen, Philippe Thelen, Hugues Demezon, Stephane Aunoble, Jean-Charles Le Huec
BACKGROUND: Three-dimensional (3D) acetabular orientation is a fundamental topic in orthopedic surgery. Computed tomography (CT) allows 3D measurement of native acetabular orientation, but with a substantial radiation dose. The EOS imaging system was developed to perform this kind of evaluation, but has not been validated in this indication with specific attention to the acetabulum. We therefore performed a prospective study using EOS to assess: 1) the reproducibility of the 3D acetabulum orientation measures; 2) normative asymptomatic acetabular morphology in standing position, according to side and gender; and 3) the relationship between acetabular anteversion and pelvic incidence...
December 23, 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28025024/cervical-sagittal-alignment-in-adolescent-idiopathic-scoliosis-patients-lenke-type-1-6
#14
Lianlei Wang, Xinyu Liu
OBJECTIVE: We collected the radiographic and clinical data of 129 AIS patients (Lenke type 1-6) to analyze the characteristics of cervical sagittal alignment in adolescent idiopathic scoliosis patients and the correlations between cervical sagittal alignment and global sagittal alignment, and clinical symptoms. METHODS: 129 patients with AIS and 48 adolescent volunteers were included in this study. The angles of the main thoracic curve, proximal thoracic curve, thoracolumbar curve, lumbar curve, C2-7 Cobb angle, T5-12 Cobb angle, L1-5 Cobb angle, pelvic incidence, pelvic tilt, sacrum slop, C2-7 sagittal vertical axis, C7-S1 sagittal vertical axis, and T1 pelvic angle were included in radiographic measurements...
December 23, 2016: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28017875/correlation-between-radiographic-parameters-and-functional-scores-in-degenerative-lumbar-and-thoracolumbar-scoliosis
#15
Simon Jérémy, Longis Pierre-Marie, Passuti Norbert
INTRODUCTION: Adult scoliosis is a condition in which the spinal deformity occurs because of degeneration. Although various studies have agreed on the importance of restoring the sagittal balance, few have evaluated the relationship between functional scores and radiological parameters. The primary objective of this retrospective study was to demonstrate the correlation between radiographic parameters and functional outcomes in adult patients with lumbar or thoracolumbar degenerative scoliosis...
December 22, 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28002917/simultaneous-double-rod-and-en-bloc-direct-vertebral-rotation-technique-for-correction-of-main-thoracic-adolescent-idiopathic-scoliosis-retrospective-analysis-of-14-cases
#16
C Faldini, F Perna, M Chehrassan, R Borghi, K Martikos, A Mazzotti, N Stefanini, L Cristofolini, F Traina
Adolescent idiopathic scoliosis (AIS) is a triplanar deformity associated with rib hump, especially when a principle thoracic curve is present. The aim of this study is to evaluate the results of AIS correction retrospectively, using simultaneous double rod derotation manoeuvre technique followed by en-bloc direct vertebral rotation (DVR). Fourteen patients were included in this study. Coronal and sagittal thoracic Cobb angle, global coronal balance, sagittal balance, rib hump prominence, Scoliosis Research Society outcome instrument score (SRS-22) and Walter Reed visual assessment scale (WR-VAS) values were recorded pre- and postoperatively and evaluated...
October 2016: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/27999791/how-sublaminar-bands-affect-postoperative-sagittal-alignment-in-ais-patients-with-preoperative-hypokyphosis-results-of-a-series-of-34-patients-with-2-year-follow-up
#17
Sébastien Pesenti, Antoine Chalopin, Emilie Peltier, Elie Choufani, Matthieu Ollivier, Stéphane Fuentes, Benjamin Blondel, Jean-Luc Jouve
Hypokyphosis is currently observed in thoracic idiopathic scoliosis. The use of sublaminar bands allows a good restoration of sagittal balance of the spine. The aim of the study was to provide a middle-term radiographic analysis of patients with adolescent idiopathic scoliosis with preoperative hypokyphosis treated by posterior arthrodesis with sublaminar bands. This retrospective study included 34 patients with Lenke 1 scoliosis associated with hypokyphosis (TK < 20°). A radiographic evaluation was performed with a 2-year follow-up...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27994777/mini-open-anterior-lumbar-interbody-fusion-combined-with-lateral-lumbar-interbody-fusion-in-corrective-surgery-for-adult-spinal-deformity
#18
Chong-Suh Lee, Se-Jun Park, Sung-Soo Chung, Jun-Young Lee, Tae-Hoon Yum, Seong-Kee Shin
STUDY DESIGN: Prospective observational study. PURPOSE: To introduce the techniques and present the surgical outcomes of mini-open anterior lumbar interbody fusion (ALIF) at the most caudal segments of the spine combined with lateral lumbar interbody fusion (LLIF) for the correction of adult spinal deformity. OVERVIEW OF LITERATURE: Although LLIF is increasingly used to correct adult spinal deformity, the correction of sagittal plane deformity with LLIF alone is reportedly suboptimal...
December 2016: Asian Spine Journal
https://www.readbyqxmd.com/read/27977581/sagittal-spinopelvic-parameters-in-2-level-lumbar-degenerative-spondylolisthesis-a-retrospective-study
#19
Tao Wang, Hui Wang, Huan Liu, Lei Ma, Feng-Yu Liu, Wen-Yuan Ding
The purpose of our study is to evaluate sagittal parameters in 2-level lumbar degenerative spondylolisthesis (DS) (TLDS).A total of 15 patients with TLDS, 40 patients with single-level DS (SLDS), and 30 normal volunteers as control were included in our study. All subjects performed on full spine X-ray. Two categorized data were analyzed: patient characteristics-age, sex, body mass index, radiographic parameters-pelvic incidence (PI), pelvic tilt (PT), lumbar lordosis (LL), sacral slope (SS), PI-LL, Cobb between the fifth thoracic vertebral and 12th thoracic vertebral (T5-T12), sagittal vertical axis (SVA) Cobb angle of spondylolisthesis level (CSL), ratio of PT to SS (PT/SS), CSL/LL, variation trend of SS over PI, and LL over PI...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27976932/effects-of-controlled-whole-body-vibration-training-in-improving-fall-risk-factors-among-individuals-with-multiple-sclerosis-a-pilot-study
#20
Feng Yang, Marcia Finlayson, Francois Bethoux, Xiaogang Su, Loretta Dillon, Hector M Maldonado
PURPOSE: The purpose of this study was to systematically examine the effect of an 8-week controlled whole-body vibration training on improving fall risk factors and the bone mineral density among people with multiple sclerosis (PwMS). METHODS: This study adopted a single group pre-test-post-test design. Twenty-five PwMS (50.3 years SD 14.1) received vibration training on a side-alternating vibration platform. Each training session was repeated three times every week for 8 weeks...
December 15, 2016: Disability and Rehabilitation
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