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Sagittal imbalance

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https://www.readbyqxmd.com/read/28437352/effect-and-strategy-of-1-stage-interrupted-2-level-transpedicular-wedge-osteotomy-for-correcting-severe-kyphotic-deformities-in-ankylosing-spondylitis
#1
Yongfei Zhao, Yan Wang, Zheng Wang, Xuesong Zhang, Keya Mao, Yonggang Zhang
STUDY DESIGN: Prospective study. OBJECTIVE: To investigate the safety, outcome, and strategy of the 1-stage interrupted 2-level transpedicular wedge osteotomy for correcting the severe kyphotic deformity in ankylosing spondylitis (AS). SUMMARY OF BACKGROUND DATA: There has been a large series in the literature reporting on results of osteotomy for the correction of kyphotic deformity secondary to AS. However, few articles have reported, in detail, the plan, design, strategy, and effect of 1-stage interrupted 2-level transpedicular wedge osteotomy for the correction of severe kyphotic deformity in AS...
May 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28437348/the-relationship-between-cervical-degeneration-and-global-spinal-alignment-in-patients-with-adult-spinal-deformity
#2
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...
May 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28437343/spinopelvic-alignment-by-different-surgical-methods-in-the-treatment-of-degenerative-sagittal-imbalance-of-the-lumbar-spine
#3
Dong-Gune Chang, Kee-Yong Ha, Young-Hoon Kim, Eun-Whan Lee
STUDY DESIGN: A retrospective comparative study. OBJECTIVE: To compare pedicle subtraction osteotomy (PSO) and iliac fixation (ILF) without osteotomy as methods of correcting lumbar spine deformities due to degenerative sagittal imbalance (DSI) through the evaluation of the changes in spinopelvic alignment. SUMMARY OF BACKGROUND DATA: Many papers have reported the surgical results after PSO and ILF for patients with fixed adult deformities...
May 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28422833/correction-of-sagittal-imbalance-in-treatment-for-adult-degenerative-scoliosis-with-thoracic-lordosis-and-lumbar-kyphosis-a-case-report
#4
Tao Wang, Hui Wang, Lei Ma, Di Zhang, Wen-Yuan Ding
RATIONALE: Lumbar degenerative scoliosis (LDS) is a common spinal disease for senior citizens. However, LDS accompanied with thoracic lordosis and lumbar kyphosis (LK) is rare in clinic. No reports have reported LDS with thoracic lordosis and LK. PATIENT CONCERNS: A 54-year-old woman just complained about sever back pain without any radiculopathy and neurodeficit of low limb for 2 years, Visual Analogue Scale (VAS) for back pain was 9 points and x-ray showed adult LDS with lordosis angle of 10° from 5th thoracic to 12th thoracic (T5-T12) and LK angle of 20°...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28419292/design-and-testing-of-2-novel-scores-that-predict-global-sagittal-alignment-utilizing-cervical-or-lumbar-plain-radiographs
#5
Ezequiel Goldschmidt, Federico Angriman, Bruno Ferreyro, Nitin Agarwal, James Zhou, Katherine Chen, Zachary J Tempel, Peter C Gerszten, Adam S Kanter, David O Okonkwo, Peter Passias, Justin Scheer, Themistocles Protopsaltis, Virginie Lafage, Renaud Lafage, Frank Schwab, Shay Bess, Chris Ames, Justin S Smith, Douglas Burton, D Kojo Hamilton
BACKGROUND: Global sagittal deformity is an established cause of disability. However, measurements of sagittal alignment are often ignored when patients present with symptoms localizing to the cervical or lumbar spine. OBJECTIVE: To develop scoring scales to predict the risk of sagittal malalignment in patients with only cervical or lumbar spine radiographs. METHODS: A retrospective review of a prospectively maintained multicenter adult spinal deformity database was performed...
April 17, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28402485/evolution-of-sagittal-imbalance-following-corrective-surgery-for-sagittal-plane-deformity
#6
Michael M McDowell, Zachary J Tempel, Gurpreet S Gandhoke, Nicholas K Khattar, D Kojo Hamilton, Adam S Kanter, David O Okonkwo
BACKGROUND: Sagittal balance in adult spinal deformity is a major predictor of quality of life. A temporary loss of paraspinal muscle force and somatic pain following spine surgery may limit a patient's ability to maintain posture. OBJECTIVE: To assess the evolution of sagittal balance and clinical outcomes during recovery from adult spinal deformity surgery. METHODS: Retrospective review of a prospective observational database identified a consecutive series of patients with sagittal vertical axis (SVA) > 40 mm undergoing adult deformity surgery...
April 10, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28400659/does-lumbar-paraspinal-muscles-improve-after-corrective-fusion-surgery-in-degenerative-flat-black
#7
Jung Hwan Lee, Sang-Ho Lee
BACKGROUND: Degenerative flat back (DFB) is characterized by sagittal imbalance resulting from the loss of lumbar lordosis (LL). Extensive degeneration and weakness of lumbar paraspinal extensor muscle (PSE) are thought to be the main cause of DFB. This study is to evaluate correlation between preoperative PSE conditions and angular severity of DFB and to evaluate correlation between preoperative PSE conditions and degree of improvement of DFB obtained by corrective surgery. MATERIALS AND METHODS: Forty five patients with DFB who took magnetic resonance image (MRI) preoperatively and conducted simple radiography and three-dimensional gait analysis before and 6 months after corrective surgery were included...
March 2017: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/28366752/non-invasive-optoelectronic-assessment-of-induced-sagittal-imbalance-using-the-vicon-%C3%A2-system
#8
M Ould-Slimane, C Latrobe, Paul Michelin, N Chastan, F Dujardin, X Roussignol, R Gauthé
OBJECTIVE: Spinal pathologies often induce gait disorders with multifactorial origins such as lumbar pain, radicular pain, neurologic complications, or spinal deformities. However, radiography does not permit an analysis of spinal dynamics; therefore, sagittal balance dynamics during gait remain largely unexplored. This prospective and controlled pilot study assesses the Vicon® system for detecting sagittal spinopelvic imbalance, and to determine the correlations between optoelectronic and radiographic parameters...
March 30, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28365858/sagittal-balance-is-correlated-with-parkinson-s-disease-clinical-parameters-an-overview-of-spinopelvic-alignment-on-175-consecutive-cases
#9
Luciano Bissolotti, Pedro Berjano, Paola Zuccher, Andrea Zenorini, Riccardo Buraschi, Jorge Hugo Villafañe, Stefano Negrini
PURPOSE: The aim of this study was to describe the disease-related sagittal balance changes in relation to the sacro-pelvic morphology of Parkinson's Disease patients with different duration of disease. METHODS: One hundred and seventy-five consecutive Parkinson's Disease (PD) patients (102 males, 73 females; age: 55-83 years) participated in the cross-sectional study. The clinical assessment included: Hoehn Yahr (H&Y) score; Tinetti score; plumb line (PL) distance from the spinous process of C7, L3 and S1 and kyphosis apex...
April 1, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28331905/asymmetrical-pedicle-subtraction-osteotomy-for-progressive-kyphoscoliosis-caused-by-a-pediatric-chance-fracture-a-case-report
#10
Satoshi Suzuki, Nobuyuki Fujita, Tomohiro Hikata, Akio Iwanami, Ken Ishii, Masaya Nakamura, Morio Matsumoto, Kota Watanabe
BACKGROUND: Although most pediatric Chance fractures (PCFs) can be treated successfully with casting and bracing, some PCFs cause progressive spinal deformities requiring surgical treatment. There are only few reports of asymmetrical osteotomy for PCF-associated spinal deformities. CASE PRESENTATION: We here report a case of a 10-year-old girl who suffered an L2 Chance fracture from an asymmetrical flexion-distraction force, accompanied by abdominal injuries. She was treated conservatively with a soft brace...
2017: Scoliosis and Spinal Disorders
https://www.readbyqxmd.com/read/28330796/chronic-low-back-pain-after-lumbosacral-fracture-due-to-sagittal-and-frontal-vertebral-imbalance
#11
L Boyoud-Garnier, M Boudissa, S Ruatti, G Kerschbaumer, P Grobost, J Tonetti
PROBLEM AND HYPOTHESIS: Over time, some patients with unilateral or bilateral lumbosacral injuries experience chronic low back pain. We studied the sagittal and frontal balance in a population with these injuries to determine whether mismatch in the pelvic and lumbar angles are associated with chronic low back pain. PATIENTS AND METHODS: Patients with posterior pelvic ring fractures (Tile C1, C2, C3 and A3.3) that had healed were included. Foreign patients and those with an associated spinal or acetabular fracture or nonunion were excluded...
March 19, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28303383/surgical-management-of-coronal-and-sagittal-imbalance-of-the-spine-without-pso-a-multicentric-cohort-study-on-compensated-adult-degenerative-deformities
#12
Alessandro Ramieri, Massimo Miscusi, Maurizio Domenicucci, Antonino Raco, Giuseppe Costanzo
PURPOSE: Sagittal imbalance of severe adult degenerative deformities requires surgical correction to improve pain, mobility and quality of life. Our aim was a harmonic and balanced spine, treating a series of adult degenerative thoracolumbar and lumbar kyphoscoliosis by a non posterior subtraction osteotomy technique. METHODS: We operated 22 painful thoracolumbar and lumbar compensated degenerative deformities by anterior (ALIF), extreme lateral (XLIF) and transforaminal (TLIF) interbody fusion and grade 2 osteotomy (SPO) to restore lumbar lordosis and mobilize the coronal curve...
March 16, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28284581/cognitive-function-surrounding-resection-of-nonfunctioning-pituitary-adenomas-with-suprasellar-extension-a-prospective-matched-control-study
#13
Philipp Hendrix, Christoph J Griessenauer, Elisa Hans, Andreas Simgen, Joachim Oertel, Julia Karbach
OBJECTIVE: Patients suffering from pituitary adenomas may experience cognitive dysfunctions due to hormonal imbalance or suprasellar tumor extension displacing neural structures. Progressively enlarging or symptomatic nonfunctioning pituitary adenomas with suprasellar extension are frequently resected. The literature on neurocognitive performance surrounding resection of these lesions is sparse. METHODS: A prospective matched-control study was conducted to investigate the impact of nonfunctioning pituitary adenomas with suprasellar extension on preoperative and postoperative cognitive performance...
March 8, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28266956/iatrogenic-flatback-and-flatback-syndrome-evaluation-management-and-prevention
#14
Barrett S Boody, Brett D Rosenthal, Tyler J Jenkins, Alpesh A Patel, Jason W Savage, Wellington K Hsu
Flatback syndrome can be a significant source of disability, affecting stance and gait, and resulting in significant pain. Although the historical instrumentation options for thoracolumbar fusion procedures have been commonly regarded as the etiology of iatrogenic flatback, inappropriate selection, or application of modern instrumentation can similarly produce flatback deformities. Patients initially compensate with increased lordosis at adjacent lumbar segments and reduction of thoracic kyphosis. As paraspinal musculature fatigues and discs degenerate, maintaining sagittal balance requires increasing pelvic retroversion and hip extension...
May 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28264237/risk-factors-of-proximal-junctional-kyphosis-after-multilevel-fusion-surgery-more-than-2-years-follow-up-data
#15
Do Keun Kim, Ji Yong Kim, Do Yeon Kim, Seung Chul Rhim, Seung Hwan Yoon
OBJECTIVE: Proximal junctional kyphosis (PJK) is radiologic finding, and is defined as kyphosis of >10° at the proximal end of a construct. The aim of this study is to identify factors associated with PJK after segmental spinal instrumented fusion in adults with spinal deformity with a minimum follow-up of 2 years. METHODS: A total of 49 cases of adult spinal deformity treated by segmental spinal instrumented fusion at two university hospitals from 2004 to 2011 were enrolled in this study...
March 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28264231/-lumbar-degenerative-kyphosis-is-not-byword-for-degenerative-sagittal-imbalance-time-to-replace-a-misconception
#16
REVIEW
Chang-Hyun Lee, Chun Kee Chung, Jee-Soo Jang, Sung-Min Kim, Dong-Kyu Chin, Jung-Kil Lee
Lumbar degenerative kyphosis (LDK) is a subgroup of the flat-back syndrome and is most commonly caused by unique life styles, such as a prolonged crouched posture during agricultural work and performing activities of daily living on the floor. Unfortunately, LDK has been used as a byword for degenerative sagittal imbalance, and this sometimes causes confusion. The aim of this review was to evaluate the exact territory of LDK, and to introduce another appropriate term for degenerative sagittal deformity. Unlike what its name suggests, LDK does not only include sagittal balance disorder of the lumbar spine and kyphosis, but also sagittal balance disorder of the whole spine and little lordosis of the lumbar spine...
March 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28230573/global-sagittal-imbalance-due-to-change-in-pelvic-incidence-after-traumatic-spinopelvic-dissociation
#17
Han-Dong Lee, Chang-Hoon Jeon, Nam-Su Chung, Suk-Hyeong Won
OBJECTIVES: Traumatic spinopelvic dissociation separates the spinal column from the pelvis, which usually creates lumbosacral kyphosis. We aimed to examine how the spinopelvic profiles changes after traumatic spinopelvic dissociation, and which are the relevant factors for the sagittal imbalance of the spine. DESIGN: Retrospective analysis. SETTING: Level I trauma center PATIENTS:: Thirty-nine consecutive patients who were diagnosed with traumatic spinopelvic dissociation and had a minimum 2-year radiological follow-up were included...
February 20, 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28204925/circumferential-fusion-for-degenerative-lumbar-spondylolisthesis-complicated-by-distal-junctional-grade-4-spondylolisthesis-in-the-sub-acute-post-operative-setting
#18
Alexander A Theologis, Deeptee Jain, Christopher P Ames, Murat Pekmezci
INTRODUCTION: Surgical management for lumbar stenosis is generally safe and provides significant improvements in pain, disability, and function. Successful lumbar decompression hinges on removing an appropriate amount of lamina and other compressive pathology in the lateral recess. Too little bony decompression can result in persistent pain and disability, while over resection of the pars and/or facets may jeopardize spinal stability. CASE REPORT: In this unique report, we present for the first time an acute iatrogenic grade 4 L5-S1 spondylolisthesis distal to a L3-5 laminectomy and circumferential instrumented fusion due to bilateral iatrogenic L5 pars fractures and its management and clinical outcomes after revision operation...
February 15, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28192267/posterior-only-vertebral-column-resection-for-the-treatment-of-severe-spinal-deformities-in-pediatric-patients-a-retrospective-case-series
#19
Malte Schroeder, Lennart Viezens, Philip Kunkel, Karsten Ridderbusch, Tim Nicolas Hissnauer, Oliver Dirk Jungesblut, Michael Hoffmann, Johannes Maria Rueger, Ralf Stuecker
OBJECTIVE: The treatment of severe spinal deformities in pediatric patients is very challenging. Posterior only vertebral column resection (PVCR) allows for correcting of severe deformities of the vertebral column via a posterior only procedure. We analyzed radiological outcome of PVCR performed on a series of pediatric patients with severe congenital and acquired spinal deformities. METHODS: A case series of eleven pediatric patients with severe spinal deformity who were treated by PVCR between 2009 and 2013 were retrospectively analyzed...
February 9, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28116458/correlation-analysis-of-osteoporotic-vertebral-compression-fractures-and-spinal-sagittal-imbalance
#20
Yi-Long Zhang, Li-Tao Shi, Pei-Fu Tang, Zhi-Jie Sun, Ya-Hui Wang
PURPOSE: To evaluate the correlation between osteoporotic vertebral compression fractures and spinal sagittal imbalance, in order to provide a reference for clinical treatment. METHODS: From September 2013 to March 2015, 60 elderly patients with old osteoporotic vertebral compression factures (observation group) and 60 healthy elderly people (control group) were studied. Whole-spine anteroposterior and lateral view X‑ray photographs were taken from all participants, the number and location of fractured vertebrae were recorded, and sagittal parameters in both groups were compared...
January 23, 2017: Der Orthopäde
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