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Sagittal imbalance

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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
#1
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/27858238/instrumentation-failure-following-pedicle-subtraction-osteotomy-the-role-of-rod-material-diameter-and-multi-rod-constructs
#2
Andrea Luca, Claudia Ottardi, Maurizio Sasso, Liliana Prosdocimo, Luigi La Barbera, Marco Brayda-Bruno, Fabio Galbusera, Tomaso Villa
PURPOSE: Pedicle subtraction osteotomy (PSO) has a complication rate noticeably higher than other corrective surgical techniques used for the treatment of spinal sagittal imbalance. In particular, rod breakage and pseudoarthrosis remain burning issues of this technique. Goal of this study was to investigate the biomechanical performance of several hardware constructs. METHODS: The study was performed using two validated finite element models of the lumbosacral spine (L1-S1) incorporating a PSO on L3 and L4, respectively...
November 17, 2016: European Spine Journal
https://www.readbyqxmd.com/read/27854109/effect-of-mono-or-bisegmental-lordosizing-fusion-on-short-term-global-and-index-sagittal-balance-a-radiographic-study
#3
Enrico Tessitore, Ilaria Melloni, Oliver P Gautschi, Gianluigi Zona, Karl Schaller, Pedro Berjano
BACKGROUND: Sagittal balance is widely recognized as an important outcome factor in reconstructive spinal surgery for lumbar degenerative conditions. However, its role in short segmental fixation is unknown. The aim of this study is to evaluate the preoperative and short-term postoperative spino-pelvic balance after short (1 or 2 levels) lordosizing lumbar fusion for degenerative disc disease (DDD). MATERIALS AND METHODS: Twenty-six consecutive patients (13 males and 13 females) undergoing mono- or bisegmental lordosizing lumbar fusion (XLIF/TLIF) for lumbar DDD were included in the study...
November 17, 2016: Journal of Neurosurgical Sciences
https://www.readbyqxmd.com/read/27847576/surgical-outcomes-of-post-fusion-lumbar-flatback-deformity-with-sagittal-imbalance
#4
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/27831489/increased-sagittal-vertical-axis-is-associated-with-less-effective-control-of-acute-pain-following-vertebroplasty
#5
Y-C Kim, D H Bok, H-G Chang, S W Kim, M S Park, J K Oh, J Kim, T-H Kim
OBJECTIVES: Although vertebroplasty is very effective for relieving acute pain from an osteoporotic vertebral compression fracture, not all patients who undergo vertebroplasty receive the same degree of benefit from the procedure. In order to identify the ideal candidate for vertebroplasty, pre-operative prognostic demographic or clinico-radiological factors need to be identified. The objective of this study was to identify the pre-operative prognostic factors related to the effect of vertebroplasty on acute pain control using a cohort of surgically and non-surgically managed patients...
November 2016: Bone & Joint Research
https://www.readbyqxmd.com/read/27792114/restrained-differential-growth-the-initiating-event-of-adolescent-idiopathic-scoliosis
#6
Tom Joris Crijns, Agnita Stadhouder, Theodoor Henri Smit
STUDY DESIGN: Experimental model study and a short review of literature. OBJECTIVE: The purpose of this study was to explore a new hypothesis suggesting that the curvatures seen in adolescent idiopathic scoliosis (AIS) originate from restrained differential growth between the vertebral column and the surrounding musculo-ligamentary structures. SUMMARY OF BACKGROUND DATA: Despite decades of research, there is no generally accepted theory on the physical origin of the severe spinal deformations seen in adolescent idiopathic scoliosis...
October 25, 2016: Spine
https://www.readbyqxmd.com/read/27781192/staged-correction-of-severe-thoracic-kyphosis-in-patients-with-multilevel-osteoporotic-vertebral-compression-fractures
#7
Eyal Behrbalk, Ofir Uri, Yoram Folman, Marcus Rickert, Radek Kaiser, Bronek Maximilian Boszczyk
Study Design Technical report. Objective Multilevel osteoporotic vertebral compression fractures may lead to considerable thoracic deformity and sagittal imbalance, which may necessitate surgical intervention. Correction of advanced thoracic kyphosis in patients with severe osteoporosis remains challenging, with a high rate of failure. This study describes a surgical technique of staged vertebral augmentation with osteotomies for the treatment of advanced thoracic kyphosis in patients with osteoporotic multilevel vertebral compression fractures...
November 2016: Global Spine Journal
https://www.readbyqxmd.com/read/27779606/surgical-and-radiographic-outcomes-after-pedicle-subtraction-osteotomy-according-to-surgeon-s-experience
#8
Ho Yong Choi, Seung-Jae Hyun, Ki-Jeong Kim, Tae-Ahn Jahng, Hyun-Jib Kim
STUDY DESIGN: Retrospective case series. OBJECTIVE: To evaluate and compare the surgical, radiographic, and clinical outcomes of pedicle subtraction osteotomy (PSO) according to surgeon's experience. SUMMARY OF BACKGROUND DATA: Although PSO has been widely used to correct spinal deformities, it still remains technically demanding procedure with high complications. METHODS: Comparative analysis of 40 consecutive patients treated with lumbar PSOs was performed...
October 24, 2016: Spine
https://www.readbyqxmd.com/read/27704473/direct-visualization-of-neurotransmitters-in-rat-brain-slices-by-desorption-electrospray-ionization-mass-spectrometry-imaging-desi-ms
#9
Anna Maria A P Fernandes, Pedro H Vendramini, Renan Galaverna, Nicolas V Schwab, Luciane C Alberici, Rodinei Augusti, Roger F Castilho, Marcos N Eberlin
Mass spectrometry imaging (MSI) of neurotransmitters has so far been mainly performed by matrix-assisted laser desorption/ionization (MALDI) where derivatization reagents, deuterated matrix and/or high resolution, or tandem MS have been applied to circumvent problems with interfering ion peaks from matrix and from isobaric species. We herein describe the application of desorption electrospray ionization mass spectrometry imaging (DESI)-MSI in rat brain coronal and sagittal slices for direct spatial monitoring of neurotransmitters and choline with no need of derivatization reagents and/or deuterated materials...
October 4, 2016: Journal of the American Society for Mass Spectrometry
https://www.readbyqxmd.com/read/27617839/impact-of-fatigue-on-maintenance-of-upright-posture-dynamic-assessment-of-sagittal-spinal-deformity-parameters-after-walking-10-minutes
#10
Junseok Bae, Alexander A Theologis, Jee-Soo Jang, Sang-Ho Lee, Vedat Deviren
STUDY DESIGN: Retrospective analysis of prospectively collected data. OBJECTIVE: To assess global and regional spinal sagittal radiographic parameters in adults with loss of lumbar lordosis ("flatback") before and after walking 10 minutes. SUMMARY OF BACKGROUND DATA: While routine activities of daily living may exacerbate functional disability of spinal sagittal-plane deformity, there is limited understanding of how sagittal parameters and compensatory mechanisms are affected by activity...
September 9, 2016: Spine
https://www.readbyqxmd.com/read/27587526/the-relationship-between-spinopelvic-measurements-and-patient-reported-outcome-scores-in-patients-with-multiple-myeloma-of-the-spine
#11
H M Yu, K Malhotra, J S Butler, A Patel, M D Sewell, Y Z Li, S Molloy
AIMS: Patients with multiple myeloma (MM) develop deposits in the spine which may lead to vertebral compression fractures (VCFs). Our aim was to establish which spinopelvic parameters are associated with the greatest disability in patients with spinal myeloma and VCFs. PATIENTS AND METHODS: We performed a retrospective cross-sectional review of 148 consecutive patients (87 male, 61 female) with spinal myeloma and analysed correlations between spinopelvic parameters and patient-reported outcome scores...
September 2016: Bone & Joint Journal
https://www.readbyqxmd.com/read/27573076/the-global-alignment-in-patients-with-lumbar-spinal-stenosis-our-experience-using-the-eos-full-body-images
#12
Jean Yves Lazennec, Dominique Folinais, Samy Bendaya, Marc Antoine Rousseau, Aidin Eslam Pour
Lumbar stenosis is frequently observed and treated by spine surgeons. The extent of neurological decompression and the potential spinal fixation are the basic concerns when surgery is planned. But this segmented approach to the problem is sometimes insufficient due to the complex functional situations induced by a sagittal imbalance of the patient and the combination of pathologies known as hip-spine or knee-spine syndromes. A total of 373 consecutive patients included from our EOS and clinical data base. Patients were divided in two groups...
October 2016: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/27546526/sagittal-imbalance-in-patients-with-lumbar-spinal-stenosis-and-outcomes-after-simple-decompression-surgery
#13
E Kyung Shin, Chi Heon Kim, Chun Kee Chung, Yunhee Choi, Dahae Yim, Whei Jung, Sung Bae Park, Jung Hyeon Moon, Won Heo, Sung-Mi Kim
BACKGROUND CONTEXT: Lumbar spinal stenosis (LSS) is the most common lumbar degenerative disease, and sagittal imbalance is uncommon. Forward-bending posture, which is primarily caused by buckling of the ligamentum flavum, may be improved via simple decompression surgery. PURPOSE: The objectives of this study were to identify the risk factors for sagittal imbalance and to describe the outcomes of simple decompression surgery. STUDY DESIGN: This is a retrospective nested case-control study PATIENT SAMPLE: This was a retrospective study that included 83 consecutive patients (M:F=46:37; mean age, 68...
August 18, 2016: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/27544679/lumbar-scoliosis-associated-with-spinal-stenosis-in-idiopathic-and-degenerative-cases
#14
REVIEW
J C Le Huec, A Cogniet, S Mazas, A Faundez
UNLABELLED: Degenerative de novo scoliosis is commonly present in older adult patients. The degenerative process including disc bulging, facet arthritis, and ligamentum flavum hypertrophy contributes to the appearance of symptoms of spinal stenosis. Idiopathic scoliosis has also degenerative changes that can lead to spinal stenosis. PURPOSE: The aetiology, prevalence, biomechanics, classification, symptomatology, and treatment of idiopathic and degenerative lumbar scoliosis in association with spinal stenosis are reviewed...
October 2016: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/27473211/impact-of-the-surgical-treatment-for-degenerative-cervical-myelopathy-on-the-preoperative-cervical-sagittal-balance-a-review-of-prospective-comparative-cohort-between-anterior-decompression-with-fusion-and-laminoplasty
#15
Kenichiro Sakai, Toshitaka Yoshii, Takashi Hirai, Yoshiyasu Arai, Kenichi Shinomiya, Atsushi Okawa
PURPOSE: Cervical sagittal balance has received increased attention as an important determinant of radiological and clinical outcomes. However, no prospective studies have compared the impact of cervical sagittal balance between anterior and posterior surgeries. We previously conducted a prospective study comparing anterior decompression with fusion (ADF) and laminoplasty (LAMP) for degenerative cervical myelopathy (DCM) and reported; however, analysis of cervical alignment within the concept of sagittal balance has yet to be performed, because that concept has recently been proposed...
July 29, 2016: European Spine Journal
https://www.readbyqxmd.com/read/27446519/long-term-outcome-of-posterior-cervical-inclinatory-foraminotomy
#16
Juneyoung Heo, Jae Chil Chang, Hyung-Ki Park
OBJECTIVE: A modified surgical technique of posterior cervical foramintomy called posterior cervical inclinatory foraminotomy (PCIF) was introduced in previous preliminary article. PCIF allows better preservation of facet joint and capsule than conventional techniques. The authors conducted a study to investigate long-term outcomes of PCIF. METHODS: We retrospectively reviewed demographic, radiologic, and clinical data from the patients who underwent PCIFs at our institution...
July 2016: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/27444272/spinal-sagittal-imbalance-in-patients-with-lumbar-disc-herniation-its-spinopelvic-characteristics-strength-changes-of-the-spinal-musculature-and-natural-history-after-lumbar-discectomy
#17
Chen Liang, Jianmin Sun, Xingang Cui, Zhensong Jiang, Wen Zhang, Tao Li
BACKGROUND: Spinal sagittal imbalance is a widely acknowledged problem, but there is insufficient knowledge regarding its occurrence. In some patients with lumbar disc herniation (LDH), their symptom is similar to spinal sagittal imbalance. The aim of this study is to illustrate the spinopelvic sagittal characteristics and identity the role of spinal musculature in the mechanism of sagittal imbalance in patients with LDH. METHODS: Twenty-five adults with spinal sagittal imbalance who initially came to our clinic for treatment of LDH, followed by posterior discectomy were reviewed...
2016: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/27398622/spinal-sagittal-balance-status-affects-postoperative-actual-falls-and-quality-of-life-after-decompression-and-fusion-in-situ-surgery-in-patients-with-lumbar-spinal-stenosis
#18
Byung Ho Lee, Jin-Oh Park, Hak-Sun Kim, Kyung-Soo Suk, Sang-Yoon Lee, Hwan-Mo Lee, Jae-Ho Yang, Seong-Hwan Moon
OBJECTIVES: It has been reported that good spinal sagittal alignment reduces the risk of fall and positive sagittal balance is the radiographic parameter that is most highly correlated with adverse health outcomes. However, no reports have demonstrated a change in risk of falling in patients with lumbar spinal stenosis (LSS) according to sagittal balance status. PATIENTS AND METHODS: From September 2013 to October 2014, 141 patients who underwent lumbar spine surgery, including decompression and fusion in-situ for LSS, were enrolled in this study...
September 2016: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/27389939/an-evidence-based-stepwise-surgical-approach-to-cervical-spondylotic-myelopathy-a-narrative-review-of-the-current-literature
#19
Majid Reza Farrokhi, Fariborz Ghaffarpasand, Mehdi Khani, Mehrnaz Gholami
Cervical spondylotic myelopathy (CSM) is the most common progressive degenerative disease of the spine in geriatric population. Surgery remains the mainstay of the treatment in patients with CSM. The surgical approach should be based on cervical sagittal imbalance. In patients with effective cervical lordosis (fewer than 3 levels of ventral disease), the anterior cervical discectomy and fusion (ACDF) or arthroplasty is preferred. Patients with more than 3 levels of compression are generally treated by laminoplasty, especially with preserved lordotic curvature...
July 4, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27355725/the-relationship-between-cervical-degeneration-and-global-spinal-alignment-in-patients-with-adult-spinal-deformity
#20
Takahito Fujimori, Hai Le, William Schairer, Shinichi Inoue, Motoki Iwasaki, Takenori Oda, Serena S Hu
OBJECTIVES: To examine the relationship between cervical degeneration and spinal alignment by comparing patients with adult spinal deformity versus the control cohort. SUMMARY OF BACKGROUND DATA: The effect of degeneration on cervical alignment has been controversial. METHODS: Cervical and full-length spine radiographs of 57 patients with adult spinal deformity and 78 patients in the control group were reviewed. Adult spinal deformity was classified into 3 types based on the primary characteristics of the deformity: "Degenerative flatback" group, "Positive sagittal imbalance" group, and "Hyperthoracic kyphosis" group...
June 28, 2016: Clinical Spine Surgery
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