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Adult spinal deformity

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https://www.readbyqxmd.com/read/28315802/upper-thoracic-versus-lower-thoracic-as-site-of-upper-instrumented-vertebrae-for-long-fusion-surgery-in-adult-spinal-deformity-a-meta-analysis-of-proximal-junctional-kyphosis
#1
Ming Luo, Pu Wang, Wengang Wang, Mingkui Shen, Genzhong Xu, Lei Xia
OBJECTIVE: A meta-analysis was performed to compare incidence rates of radiographic and surgical proximal junctional kyphosis (PJK) between upper thoracic (UT) versus lower thoracic (LT) as site of upper-instrumented vertebrae (UIV) endpoints for long fusion surgery in adult spinal deformity (ASD). METHODS: The MEDLINE, Embase, and the Cochrane Library databases were searched for English-language articles that addressed the UT versus LT fixation strategies. The division of the UT and LT groups was based on UIV...
March 15, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28296698/how-to-create-sagittal-balance-in-mis-correction-of-adult-spinal-deformity
#2
Neel Anand
No abstract text is available yet for this article.
April 1, 2017: Spine
https://www.readbyqxmd.com/read/28296697/adult-degenerative-spinal-deformity-overview-and-open-approaches-for-treatment
#3
Ryan M Kretzer
No abstract text is available yet for this article.
April 1, 2017: Spine
https://www.readbyqxmd.com/read/28296696/patient-specific-spinal-alignment-and-adult-deformity-surgery-are-all-patient-deformities-the-same
#4
Themistocles S Protopsaltis
No abstract text is available yet for this article.
April 1, 2017: Spine
https://www.readbyqxmd.com/read/28291409/association-between-bicortical-screw-fixation-at-upper-instrumented-vertebra-and-risk-for-upper-instrumented-vertebra-fracture
#5
Young-Seop Park, Seung-Jae Hyun, Ho Yong Choi, Ki-Jeong Kim, Tae-Ahn Jahng
OBJECTIVE The aim of this study was to investigate the risk of upper instrumented vertebra (UIV) fractures associated with UIV screw fixation (unicortical vs bicortical) and polymethylmethacrylate (PMMA) augmentation after adult spinal deformity surgery. METHODS A single-center, single-surgeon consecutive series of adult patients who underwent lumbar fusion for ≥ 4 levels (that is, the lower instrumented vertebra at the sacrum or pelvis and the UIV of the thoracolumbar spine [T9-L2]) were retrospectively reviewed...
March 3, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28291402/complication-rates-associated-with-3-column-osteotomy-in-82-adult-spinal-deformity-patients-retrospective-review-of-a-prospectively-collected-multicenter-consecutive-series-with-2-year-follow-up
#6
Justin S Smith, Christopher I Shaffrey, Eric Klineberg, Virginie Lafage, Frank Schwab, Renaud Lafage, Han Jo Kim, Richard Hostin, Gregory M Mundis, Munish Gupta, Barthelemy Liabaud, Justin K Scheer, Bassel G Diebo, Themistocles S Protopsaltis, Michael P Kelly, Vedat Deviren, Robert Hart, Doug Burton, Shay Bess, Christopher P Ames
OBJECTIVE Although 3-column osteotomy (3CO) can provide powerful alignment correction in adult spinal deformity (ASD), these procedures are complex and associated with high complication rates. The authors' objective was to assess complications associated with ASD surgery that included 3CO based on a prospectively collected multicenter database. METHODS This study is a retrospective review of a prospectively collected multicenter consecutive case registry. ASD patients treated with 3CO and eligible for 2-year follow-up were identified from a prospectively collected multicenter ASD database...
February 17, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28288920/early-patient-reported-outcomes-predict-3-year-outcomes-in-operatively-treated-patients-with-adult-spinal-deformity
#7
Amit Jain, Khaled M Kebaish, Daniel M Sciubba, Hamid Hassanzadeh, Justin K Scheer, Brian J Neuman, Virginie Lafage, Shay Bess, Themistocles S Protopsaltis, Douglas C Burton, Justin S Smith, Christopher I Shaffrey, Richard A Hostin, Christopher P Ames
BACKGROUND: For patients with adult spinal deformity (ASD), surgical treatment may improve their health-related quality of life. This study investigates when the greatest improvement in outcomes occurs and whether incremental improvements in patient-reported outcomes during the first postoperative year predict outcomes at 3 years. METHODS: Using a multicenter registry, we identified 84 adults with ASD treated surgically from 2008 through 2012 with complete 3-year follow-up...
March 10, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28281003/bone-morphogenetic-protein-in-adult-spinal-deformity-surgery-a-meta-analysis
#8
Gregory W Poorman, Cyrus M Jalai, Anthony Boniello, Nancy Worley, Shearwood McClelland, Peter G Passias
INTRODUCTION: Since its introduction BMP has been utilized in populations with higher rates of malunion, such as adult spinal deformity (ASD) patients. Contradictory conclusions exist in spinal literature regarding the safety and efficacy of the use of BMP in this setting. Previous studies, however, did not distinguish deformity cases from spondylolisthesis or stenosis. The purpose of this study is to evaluate the safety and efficacy of BMP use in spinal fusion surgery for ASD. METHODS: 166 papers were screened after database search...
March 9, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28266959/morphometric-analysis-of-the-retroperitoneal-vessels-with-respect-to-lateral-access-surgery-in-adult-scoliosis
#9
Heeren S Makanji, Hai Le, Kirkham B Wood, Louis G Jenis, Thomas D Cha
STUDY DESIGN: Cross-sectional study reviewing 62 magnetic resonance imaging or computed tomography scans from consecutive adult patients with scoliotic spinal deformity in the thoracolumbar spine. OBJECTIVE: To investigate the variation in anatomic position of retroperitoneal vessels in relationship to curve direction, location, magnitude, and axial rotation of curves in adult scoliosis. SUMMARY OF BACKGROUND DATA: The minimally invasive lateral approach to the thoracolumbar spine avoids manipulation of abdominal and retroperitoneal structures and decreases risk of injury to paraspinal musculature...
March 6, 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
#10
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/28263226/age-adjusted-alignment-goals-have-the-potential-to-reduce-pjk
#11
Renaud Lafage, Frank Schwab, Steve Glassman, Shay Bess, Bradley Harris, Justin Sheer, Robert Hart, Breton Line, Jensen Henry, Doug Burton, HanJo Kim, Eric Klineberg, Christopher Ames, Virginie Lafage
STUDY DESIGN: Retrospective cohort OBJECTIVE.: To explore proximal junctional kyphosis(PJK) as a function of age-adjusted surgical correction goals. SUMMARY OF BACKGROUND DATA: Recent adult spinal deformity(ASD) studies show that alignment targets are age-specific. Despite recognizing age and malalignment as PJK risk factors, no study has assessed the age-specific effects of alignment on PJK. METHODS: ASD patients with fusions to the pelvis were included and stratified into three groups: young adults(YA<40yo), middle aged(MA: 40-65yo), the elderly(ED>65yo)...
March 3, 2017: Spine
https://www.readbyqxmd.com/read/28259267/timing-of-complications-occurring-within-30-days-after-adult-spinal-deformity-surgery
#12
Rafael De la Garza Ramos, C Rory Goodwin, Peter G Passias, Brian J Neuman, Khaled M Kebaish, Virginie Lafage, Frank Schwab, Daniel M Sciubba
STUDY DESIGN: Cross-sectional study of a national surgical database. OBJECTIVE: To investigate the timing of complications after adult spinal deformity (ASD) surgery. SUMMARY OF BACKGROUND DATA: There is limited data on the range of days when complications after ASD surgery occur. METHODS: The American College of Surgeons National Surgical Quality Improvement database was reviewed for the years 2007-2013. Inclusion criteria were adult patients (over 21 years of age) who underwent spinal fusion for ASD...
March 2017: Spine Deformity
https://www.readbyqxmd.com/read/28259266/predictors-of-health-related-quality-of-life-after-complex-adult-spinal-deformity-surgery-a-scoli-risk-1-secondary-analysis
#13
Leah Y Carreon, Steven D Glassman, Christopher I Shaffrey, Michael G Fehlings, Benny Dahl, Christopher P Ames, Yukihiro Matsuyama, Yong Qiu, Hossein Mehdian, Kenneth M C Cheung, Frank J Schwab, Ferran Pellisé, Khaled M Kebaish, Lawrence G Lenke
STUDY DESIGN: Longitudinal cohort. OBJECTIVES: To identify variables that predict 2-year Short Form-36 Physical Composite Summary Score (SF-36PCS) and the Scoliosis Research Society-22R (SRS22-R) Total score after surgery for complex adult spinal deformity. SUMMARY OF BACKGROUND DATA: Increasingly, treatment effectiveness is assessed by the extent to which the procedure improves a patient's health-related quality of life (HRQOL). This is especially true in patients with complex adult spinal deformity...
March 2017: Spine Deformity
https://www.readbyqxmd.com/read/28258417/utility-of-the-clivo-axial-angle-in-assessing-brainstem-deformity-pilot-study-and-literature-review
#14
Fraser C Henderson, Fraser C Henderson, William A Wilson, Alexander S Mark, Myles Koby
There is growing recognition of the kyphotic clivo-axial angle (CXA) as an index of risk of brainstem deformity and craniocervical instability. This review of literature and prospective pilot study is the first to address the potential correlation between correction of the pathological CXA and postoperative clinical outcome. The CXA is a useful sentinel to alert the radiologist and surgeon to the possibility of brainstem deformity or instability. Ten adult subjects with ventral brainstem compression, radiographically manifest as a kyphotic CXA, underwent correction of deformity (normalization of the CXA) prior to fusion and occipito-cervical stabilization...
March 3, 2017: Neurosurgical Review
https://www.readbyqxmd.com/read/28248894/extensive-corrective-fixation-surgeries-for-adult-spinal-deformity-improve-posture-and-lower-extremity-kinematics-during-gait
#15
Hideyuki Arima, Yu Yamato, Tomohiko Hasegawa, Sho Kobayashi, Go Yoshida, Tatsuya Yasuda, Tomohiro Banno, Shin Oe, Yuki Mihara, Daisuke Togawa, Yukihiro Matsuyama
STUDY DESIGN: Longitudinal cohort. OBJECTIVE: This study aimed to document changes in posture and lower extremity kinematics during gait in patients with adult spinal deformity (ASD) after extensive corrective surgery. SUMMARY OF BACKGROUND DATA: Standing radiographic parameters are typically used to evaluate ASD patients. Previously, preoperative walking and standing posture discrepancy were reported in ASD patients. However, we didn't include comparison between before and after surgery...
February 28, 2017: Spine
https://www.readbyqxmd.com/read/28248611/age-related-variations-in-global-spinal-alignment-and-sagittal-balance-in-asymptomatic-japanese-adults
#16
Kunio Yokoyama, Masahiro Kawanishi, Makoto Yamada, Hidekazu Tanaka, Yutaka Ito, Shinji Kawabata, Toshihiko Kuroiwa
OBJECTIVES: The global spinal sagittal alignment varies widely among healthy individuals as it is affected by not only race, but also aging. We investigated age-related changes in the spinal alignment in asymptomatic Japanese individuals. METHODS: The subjects comprised 220 individuals without any spine-related neurological symptoms or treatment history thereof who visited our outpatient clinic. Lateral radiographs of the whole spine were taken for all subjects in the standing position...
March 1, 2017: Neurological Research
https://www.readbyqxmd.com/read/28247077/s2-alar-iliac-screw-placement-under-robotic-guidance-for-adult-spinal-deformity-patients-technical-note
#17
Seung-Jae Hyun, Ki-Jeong Kim, Tae-Ahn Jahng
PURPOSE: S2 alar-iliac (S2AI) screws are generally placed using an open approach, but have recently been shown to be implantable using a minimally invasive approach. Nevertheless, optimal screw positioning, even when supported by fluoroscopic guidance, is challenging in the complex anatomy of the sacral-pelvic area. This work presents our novel technique of S2AI sacropelvic fixation procedures performed with robotic guidance. METHODS: This was a single-center, retrospective, mini case-series of adult spinal deformity patients in need of sacropelvic fixation as part of a longer thoraco-lumbar fusion...
February 28, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28242335/rod-stiffness-as-a-risk-factor-of-proximal-junctional-kyphosis-after-adult-spinal-deformity-surgery-comparative-study-between-cobalt-chrome-multiple-rod-constructs-and-titanium-alloy-two-rod-constructs
#18
Sanghyun Han, Seung-Jae Hyun, Ki-Jeong Kim, Tae-Ahn Jahng, Subum Lee, Seung-Chul Rhim
BACKGROUND CONTEXT: Little is known about the effect of rod stiffness as a risk factor of proximal junctional kyphosis (PJK) after adult spinal deformity (ASD) surgery. PURPOSE: The aim of this study was to compare radiographic outcomes after the use of cobalt chrome multiple-rod constructs (CoCr MRCs) and titanium alloy two-rod constructs (Ti TRCs) for ASD surgery with a minimum 1-year follow-up. STUDY DESIGN: Retrospective case-control study in two institutes...
February 24, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28225365/magnitude-location-and-factors-related-to-regional-and-global-sagittal-alignment-change-in-long-adult-deformity-constructs-report-of-183-patients-with-2-year-follow-up
#19
Alexander A Theologis, Michael Safaee, Justin K Scheer, Virginie Lafage, Rick Hostin, Robert A Hart, Eric O Klineberg, Themistocles S Protopsaltis, Vedat Deviren, Douglas C Burton, Daniel M Sciubba, Khaled Kebaish, Shay Bess, Christopher I Shaffrey, Frank Schwab, Justin S Smith, Christopher P Ames
STUDY DESIGN: This is a retrospective review of a prospective multicenter adult spinal deformity (ASD) database. OBJECTIVE: To quantify the location and magnitude of sagittal alignment changes within instrumented and noninstrumented spinal segments and to investigate the factors associated with these changes after surgery for ASD. SUMMARY OF BACKGROUND DATA: Spinal realignment is one of the major goals in ASD surgery and changes in the alignment are common following surgical correction...
February 20, 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28207663/role-of-ethnicity-in-alignment-compensation-propensity-matched-analysis-of-differential-compensatory-mechanism-recruitment-patterns-for-sagittal-malalignment-in-288-asd-patients-from-japan-korea-and-united-states
#20
Bassel G Diebo, Isaac Gammal, Yoon Ha, Seung Hwan Yoon, Jae Won Chang, Byeongwoo Kim, Morio Matsumoto, Yu Yamato, Daisaku Takeuchi, Naobumi Hosogane, Mitsuru Yagi, Hiroshi Taneichi, Frank Schwab, Virginie Lafage, Christopher Ames
STUDY DESIGN: Retrospective review of adult spinal deformity patients in a multiethnic database. OBJECTIVE: To investigate the role of ethnicity on recruitment of compensatory mechanisms for sagittal spinal deformity. SUMMARY OF BACKGROUND DATA: While the impacts of age, sex, and pelvic morphology on the ability to compensate for sagittal malalignment have been investigated, the role of ethnicity in compensatory mechanism recruitment is poorly understood...
February 15, 2017: Spine
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