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Proximal junction kyphosis

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https://www.readbyqxmd.com/read/29330570/open-door-laminoplasty-what-can-the-unilateral-approach-offer
#1
REVIEW
R Kothe, G Schmeiser, L Papavero
OBJECTIVE: Multilevel posterior decompression of subaxial cervical spinal canal stenosis through a less-invasive unilateral approach. INDICATIONS: Degenerative cervical myelopathy due to multilevel subaxial spinal canal stenosis. CONTRAINDICATIONS: Cervical kyphosis or instability, bilateral radiculopathy due to foraminal stenosis, involvement of C2 or C7. SURGICAL TECHNIQUE: Unilateral subaxial approach with detachment of muscles only on one side...
January 12, 2018: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/29301171/proximal-junctional-kyphosis-and-proximal-junctional-failure-following-adult-spinal-deformity-surgery
#2
REVIEW
Seung-Jae Hyun, Byoung Hun Lee, Jong-Hwa Park, Ki-Jeong Kim, Tae-Ahn Jahng, Hyun-Jib Kim
The purpose of this review is the current understanding of proximal junctional kyphosis (PJK) and proximal junctional failure (PJF) following adult spinal deformity (ASD) surgery. We carried out a systematic search of PubMed for literatures published up to September 2017 with "proximal junctional kyphosis," "proximal junctional failure," and "adult spinal deformity" as search terms. A total of 98 literatures were searched. The 37 articles were included in this review. PJK is multifactorial in origin and likely results from variable risk factors...
December 2017: Korean Journal of Spine
https://www.readbyqxmd.com/read/29290534/selection-of-distal-fusion-level-in-terms-of-distal-junctional-kyphosis-in-scheuermann-kyphosis-a-comparison-of-3-methods
#3
Fatih Dikici, Turgut Akgul, Kerim Sariyilmaz, Murat Korkmaz, Okan Ozkunt, Cuneyt Sar, Unsal Domanic
OBJECTIVE: The aim of this study was to investigate the effect of distal fusion level selection on the distal junctional kyphosis (DJK) in Scheuermann kyphosis (SK) patients who underwent posterior fusion. METHODS: Thirty-nine SK patients who underwent posterior fusion with a minimum follow-up of 3 years were retrospectively evaluated. According to the distal fusion level, patients were divided into 3 groups. Group S; lowest instrumented vertebra (LIV) was the sagittal stable vertebra (SSV), Group F; LIV was the first lordotic vertebra (FLV) and, Group L; LIV was the lower end vertebra (LEV)...
December 28, 2017: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/29281113/complication-rates-and-maintenance-of-correction-after-3-column-osteotomy-in-the-elderly-report-of-55-patients-with-2-year-follow-up
#4
Vincent Challier, Jensen K Henry, Shian Liu, Christopher Ames, Khaled Kebaish, Ibrahim Obeid, Richard Hostin, Munish Gupta, Oheneba Boachie-Adjei, Justin S Smith, Gregory Mundis, Shay Bess, Frank Schwab, Virginie Lafage
BACKGROUND: Three-column osteotomies (3CO) provide substantial correction for adult spinal deformity (ASD), but carry risks of complications and revisions. The risk-benefit balance of 3CO in the elderly remains unclear. OBJECTIVE: To evaluate sagittal alignment and complications after 3CO in a population over 70-yr old. METHODS: Radiographic retrospective review of consecutive patients over 70 yr ("Elderly") undergoing 3CO for ASD. Demographic, operative, and outcomes data were collected...
December 21, 2017: Neurosurgery
https://www.readbyqxmd.com/read/29281107/outcomes-of-operative-treatment-for-adult-cervical-deformity-a-prospective-multicenter-assessment-with-1-year-follow-up
#5
Tamir Ailon, Justin S Smith, Christopher I Shaffrey, Han Jo Kim, Gregory Mundis, Munish Gupta, Eric Klineberg, Frank Schwab, Virginie Lafage, Renaud Lafage, Peter Passias, Themistocles Protopsaltis, Brian Neuman, Alan Daniels, Justin K Scheer, Alex Soroceanu, Robert Hart, Rick Hostin, Douglas Burton, Vedat Deviren, Todd J Albert, K Daniel Riew, Shay Bess, Christopher P Ames
BACKGROUND: Despite the potential for profound impact of adult cervical deformity (ACD) on function and health-related quality of life (HRQOL), there are few high-quality studies that assess outcomes of surgical treatment for these patients. OBJECTIVE: To determine the impact of surgical treatment for ACD on HRQOL. METHODS: We conducted a prospective cohort study of surgically treated ACD patients eligible for 1-yr follow-up. Baseline deformity characteristics, surgical parameters, and 1-yr HRQOL outcomes were assessed...
December 21, 2017: Neurosurgery
https://www.readbyqxmd.com/read/29247396/the-mechanism-in-junctional-failure-of-thoraco-lumbar-fusions-part-ii-analysis-of-a-series-of-pjk-after-thoraco-lumbar-fusion-to-determine-parameters-allowing-to-predict-the-risk-of-junctional-breakdown
#6
Antonio A Faundez, Jonathon Richards, Philippe Maxy, Rachel Price, Amélie Léglise, Jean-Charles Le Huec
PURPOSE: To identify risk factors, in 12 patients with junctional breakdown (JBD) after thoraco-sacral fusions and to test a software locating maximal bending moment on full spine EOS images. METHODS: Twelve patients underwent long fusions for lumbar degenerative pathologies. Preop EOS images were compared to first postop EOS showing JBD. Parameters analyzed were: spinopelvic parameters [pelvic incidence (PI), pelvic tilt (PT), sacral slope (SS), sagittal vertical axis (SVA), spinosacral angle (SSA), lordosis, and kyphosis], proximal junctional angle (PJA), odontoid-hip axis angle (ODHA), and CIA...
December 15, 2017: European Spine Journal
https://www.readbyqxmd.com/read/29232355/proximal-junctional-kyphosis-inter-and-intraobserver-reliability-of-radiographic-measurements-in-adult-spinal-deformity
#7
Farbod Rastegar, Alec Contag, Alan Daniels, Jayme Hiratzka, Clifford Lin, Jason Chang, Khoi Than, Ahmed Raslan, Christopher Kong, Ngoc-Lam Nguyen, Richard Hostin, Marie Kane, Robert A Hart
STUDY DESIGN: Reliability study of radiographic measures of proximal junctional kyphosis (PJK) in patients with adult spinal deformity (ASD). OBJECTIVE: To assess impacts of level of proximal endpoint and vertebral fracture on reliability of measurement of junctional kyphosis. SUMMARY OF BACKGROUND DATA: Radiographic assessment is important in determining management of patients with PJK or proximal junctional failure (PJF). No study to date has evaluated the reliability of radiographic measurement of the junctional kyphotic angle after surgery for ASD...
January 1, 2018: Spine
https://www.readbyqxmd.com/read/29215493/minimally-invasive-lateral-lumbar-interbody-fusion-for-adult-spinal-deformity-clinical-and-radiological-efficacy-with-minimum-two-years-follow-up
#8
Hyung-Youl Park, Kee-Yong Ha, Young-Hoon Kim, Dong-Gune Chang, Sang-Il Kim, Jae-Won Lee, Joo-Hyun Ahn, Jong-Bin Kim
STUDY DESIGN: A retrospective cohort study OBJECTIVE.: To evaluate the clinical and radiological efficacies of supplementing minimally invasive lateral lumbar interbody fusion (LLIF) with open posterior spinal fusion (PSF) in adult spinal deformity (ASD). SUMMARY OF BACKGROUND DATA: Minimally invasive techniques have been increasingly applied for surgery of ASD. Few reports have been published that directly compare LLIF combined with PSF to conventional PSF for ASD...
December 5, 2017: Spine
https://www.readbyqxmd.com/read/29191103/relative-lumbar-lordosis-and-lordosis-distribution-index-individualized-pelvic-incidence-based-proportional-parameters-that-quantify-lumbar-lordosis-more-precisely-than-the-concept-of-pelvic-incidence-minus-lumbar-lordosis
#9
Caglar Yilgor, Nuray Sogunmez, Yasemin Yavuz, Kadir Abul, Louis Boissiére, Sleiman Haddad, Ibrahim Obeid, Frank Kleinstück, Francisco Javier Sánchez Pérez-Grueso, Emre Acaroğlu, Anne F Mannion, Ferran Pellise, Ahmet Alanay
OBJECTIVE The subtraction of lumbar lordosis (LL) from the pelvic incidence (PI) offers an estimate of the LL required for a given PI value. Relative LL (RLL) and the lordosis distribution index (LDI) are PI-based individualized measures. RLL quantifies the magnitude of lordosis relative to the ideal lordosis as defined by the magnitude of PI. LDI defines the magnitude of lower arc lordosis in proportion to total lordosis. The aim of this study was to compare RLL and PI - LL for their ability to predict postoperative complications and their correlations with health-related quality of life (HRQOL) scores...
December 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/29191100/preliminary-results-of-anterior-lumbar-interbody-fusion-anterior-column-realignment-for-the-treatment-of-sagittal-malalignment
#10
Pooria Hosseini, Gregory M Mundis, Robert K Eastlack, Ramin Bagheri, Enrique Vargas, Stacie Tran, Behrooz A Akbarnia
OBJECTIVE Sagittal malalignment decreases patients' quality of life and may require surgical correction to achieve realignment goals. High-risk posterior-based osteotomy techniques are the current standard treatment for addressing sagittal malalignment. More recently, anterior lumbar interbody fusion, anterior column realignment (ALIF ACR) has been introduced as an alternative for correction of sagittal deformity. The objective of this paper was to report clinical and radiographic results for patients treated using the ALIF-ACR technique...
December 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/29191099/an-assessment-of-frailty-as-a-tool-for-risk-stratification-in-adult-spinal-deformity-surgery
#11
Emily K Miller, Brian J Neuman, Amit Jain, Alan H Daniels, Tamir Ailon, Daniel M Sciubba, Khaled M Kebaish, Virginie Lafage, Justin K Scheer, Justin S Smith, Shay Bess, Christopher I Shaffrey, Christopher P Ames
OBJECTIVE The goal of this study was to analyze the value of an adult spinal deformity frailty index (ASD-FI) in preoperative risk stratification. Preoperative risk assessment is imperative before procedures known to have high complication rates, such as ASD surgery. Frailty has been associated with risk of complications in trauma surgery, and preoperative frailty assessments could improve the accuracy of risk stratification by providing a comprehensive analysis of patient factors that contribute to an increased risk of complications...
December 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/29189571/adding-satellite-rods-to-standard-2-rod-construct-with-the-use-of-duet-screws-an-effective-technique-to-improve-surgical-outcomes-and-preventing-proximal-junctional-kyphosis-in-posterior-only-correction-of-scheuermann-kyphosis
#12
Ze-Zhang Zhu, Xi Chen, Yong Qiu, Zhong-Hui Chen, Song Li, Liang Xu, Xu Sun
STUDY DESIGN: Retrospective matched-cohort comparative study. OBJECTIVE: To compare the surgical results after the use of duet screw based satellite rods plus bilateral satellite rods (S-RC) versus a standard 2-rod construct (2-RC) across osteotomy sites in a matched-cohort with Scheuermann kyphosis (SK). SUMMARY OF BACKGROUND DATA: Multiple Ponte osteotomies are frequently employed to correct SK via a posterior-only approach, with a 2-RC across the osteotomy sites...
November 17, 2017: Spine
https://www.readbyqxmd.com/read/29182111/the-effect-of-distraction-based-growth-friendly-spinal-instrumentation-on-growth-in-early-onset-scoliosis
#13
M B Balioğlu, Y Atici, A Albayrak, D Kargin, Y E Akman, M A Kaygusuz
The present study assessed the advantages and disadvantages of growth-friendly spinal instrumentation surgery for early-onset scoliosis in 17 patients who underwent this surgery with a minimum 2-year follow-up. The mean number of lengthening procedures was three, initial age at which surgery was performed was 108.1 ± 30.2 months, and follow-up duration was 40.6 ± 16.6 months. Spinal height (T1-S1 and T1-T12), lung space available, major Cobb angle for scoliosis, maximum thoracic kyphosis, lumbar lordosis, shoulder and pelvic balance, and coronal and sagittal balance were assessed preoperatively and at the last follow-up...
December 2016: Acta Orthopaedica Belgica
https://www.readbyqxmd.com/read/29149848/the-patterns-of-loss-of-correction-after-posterior-wedge-osteotomy-in-ankylosing-spondylitis-related-thoracolumbar-kyphosis-a-minimum-of-five-year-follow-up
#14
Mu Qiao, Bang-Ping Qian, Sai-Hu Mao, Yong Qiu, Bin Wang
BACKGROUND: Short-term studies have demonstrated good surgical outcomes after pedicle subtraction osteotomy (PSO) in ankylosing spondylitis (AS) patients, but there is a paucity of literature focused on middle-term results, especially regarding patterns of loss of correction. The objective of this study is to assess the durability of surgical outcomes and the patterns of loss of correction in thoracolumbar kyphosis secondary to AS following lumbar PSO with over 5-year follow-up. METHODS: We performed a retrospective review of 155 consecutive AS patients undergoing lumbar PSO from January 2001 to December 2011...
November 17, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29103128/extreme-proximal-junctional-kyphosis-a-complication-of-delayed-lambdoid-suture-closure-in-hajdu-cheney-syndrome-a-case-report-and-literature-review
#15
Colin Y L Woon, Steven M Mardjetko
PURPOSE: To describe the manifestations, surgical treatment, and potential complications of Hajdu-Cheney syndrome (HCS), and the management of these complications. METHODS: The clinical presentation, management and outcome of HCS with severe osteoporosis and open skull sutures is presented, together with a literature review. RESULTS: A 20-year-old female with HCS underwent posterior occipitocervical fusion for symptoms of progressive basilar invagination...
November 4, 2017: European Spine Journal
https://www.readbyqxmd.com/read/29067951/radiological-analysis-of-thoracolumbar-junctional-degenerative-kyphosis-in-patients-with-lumbar-degenerative-kyphosis
#16
Chen-Jun Liu, Zhen-Qi Zhu, Kai-Feng Wang, Shuo Duan, Shuai Xu, Hai-Ying Liu
BACKGROUND: Thoracolumbar junction (TLJ) is the transitional area between the lower thoracic spine and the upper lumbar spine. Vertebral compression fractures and proximal junctional kyphosis following spine surgery often occur in this area. Therefore, the study of development and mechanisms of thoracolumbar junctional degeneration is important for planning surgical management. This study aimed to review radiological parameters of thoracolumbar junctional degenerative kyphosis (TLJDK) in patients with lumbar degenerative kyphosis and to analyze compensatory mechanisms of sagittal balance...
November 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/29040759/cervical-alignment-changes-in-patients-developing-proximal-junctional-kyphosis-following-surgical-correction-of-adult-spinal-deformity
#17
Peter G Passias, Samantha R Horn, Cyrus M Jalai, Subaraman Ramchandran, Gregory W Poorman, Han Jo Kim, Justin S Smith, Daniel Sciubba, Alexandra Soroceanu, Christopher P Ames, D Kojo Hamilton, Robert Eastlack, Douglas Burton, Munish Gupta, Shay Bess, Virginie Lafage, Frank Schwab
BACKGROUND: Proximal junctional kyphosis (PJK) following adult spinal deformity (ASD) surgery is a well-documented complication, but associations between radiographic PJK and cervical malalignment onset remain unexplored. OBJECTIVE: To study cervical malalignment in ASD surgical patients that develop PJK. METHODS: Retrospective review of prospective multicenter database. Inclusion: primary ASD patients (≥5 levels fused, upper instrumented vertebra [UIV] at T2 or above, and 1-yr minimum follow-up) without baseline cervical deformity (CD), defined as ≥2 of the following criteria: T1 slope minus cervical lordosis < 20°, cervical sagittal vertical axis < 4 cm, C2-C7 cervical lordosis < 10°...
October 12, 2017: Neurosurgery
https://www.readbyqxmd.com/read/29037974/impact-of-early-unanticipated-revision-surgery-on-health-related-quality-of-life-after-adult-spinal-deformity
#18
Susana Núñez-Pereira, Alba Vila-Casademunt, Montse Domingo-Sàbat, Juan Bagó, Emre R Acaroglu, Ahmet Alanay, Ibrahim Obeid, Francisco Javier Sánchez Pérez-Grueso, Frank Kleinstück, Ferran Pellisé
Background context Revision surgery represents a major event for patients undergoing ASD surgery. Previous reports suggest minimal or no impact on HRQOL outcomes. Purpose To investigate the impact of early reoperations within the first year on health-related quality of life (HRQOL) and on the likelihood of reaching the MCID after ASD surgery. Design Retrospective analysis of prospectively collected data from consecutive surgically treated adult deformity surgery (ADS) patients included in a multicenter, international database...
October 13, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28989847/comparison-between-s2-alar-iliac-screw-fixation-and-iliac-screw-fixation-in-adult-deformity-surgery-reoperation-rates-and-spinopelvic-parameters
#19
Wataru Ishida, Benjamin D Elder, Christina Holmes, Sheng-Fu L Lo, C Rory Goodwin, Thomas A Kosztowski, Ali Bydon, Ziya L Gokaslan, Jean-Paul Wolinsky, Daniel M Sciubba, Timothy F Witham
STUDY DESIGN: Retrospective cohort study. OBJECTIVE: The S2-alar-iliac (S2AI) technique has been described as an alternative method for pelvic fixation in place of iliac screws (ISs) in spinal deformity surgery. The objective of this study was to analyze the impact of S2AI screws on radiographical outcomes, including spinopelvic parameters. METHODS: A retrospective review of 17 patients receiving ISs and 46 patients receiving S2AI screws for correction of adult spinal deformity between 2010 and 2015 with minimum 1-year follow-up was conducted...
October 2017: Global Spine Journal
https://www.readbyqxmd.com/read/28984540/evolution-of-the-postoperative-sagittal-spinal-profile-in-early-onset-scoliosis-is-there-a-difference-between-rib-based-and-spine-based-growth-friendly-instrumentation
#20
Zhonghui Chen, Song Li, Yong Qiu, Zezhang Zhu, Xi Chen, Liang Xu, Xu Sun
OBJECTIVE Although the vertical expandable prosthetic titanium rib (VEPTR) and growing rod instrumentation (GRI) encourage spinal growth via regular lengthening, they can create different results because of their different fixation patterns and mechanisms in correcting scoliosis. Previous studies have focused comparisons on coronal plane deformity with minimal attention to the sagittal profile. In this retrospective study, the authors aimed to compare the evolution of the sagittal spinal profile in early-onset scoliosis (EOS) treated with VEPTR versus GRI...
October 6, 2017: Journal of Neurosurgery. Pediatrics
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