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Proximal junction kyphosis

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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
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
https://www.readbyqxmd.com/read/28976431/global-alignment-and-proportion-gap-score-development-and-validation-of-a-new-method-of-analyzing-spinopelvic-alignment-to-predict-mechanical-complications-after-adult-spinal-deformity-surgery
#7
Caglar Yilgor, Nuray Sogunmez, Louis Boissiere, Yasemin Yavuz, Ibrahim Obeid, Frank Kleinstück, Francisco Javier Sánchez Pérez-Grueso, Emre Acaroglu, Sleiman Haddad, Anne F Mannion, Ferran Pellise, Ahmet Alanay
BACKGROUND: The restoration of normal sagittal alignment is a critical goal in adult spinal deformity surgery to achieve favorable outcomes and prevent mechanical complications. Schwab sagittal modifiers have been accepted as targets for appropriate alignment, but addressing these targets does not always prevent high mechanical complication or revision rates. This may be because the linear absolute numerical parameters do not cover the whole pelvic incidence spectrum and the distribution of lordosis, pelvic anteversion, and negative malalignment are not considered as potential causes of failure...
October 4, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28922883/proximal-junctional-kyphosis-prevention-strategies-a-video-technique-guide
#8
Michael M Safaee, Joseph A Osorio, Kushagra Verma, Shay Bess, Christopher I Shaffrey, Justin S Smith, Robert Hart, Vedat Deviren, Christopher P Ames
BACKGROUND: Proximal junctional kyphosis (PJK) is a well-recognized complication in patients undergoing posterior instrumented fusion procedures for adult spinal deformity. Strategies that reduce rates of PJK have the potential to improve the safety of these operations and decrease cost by eliminating the need for revision surgery. OBJECTIVE: To present a set of surgical techniques that can decrease rates of PJK in adults undergoing surgery for spinal deformity...
October 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28902106/fine-tuning-the-predictive-model-for-proximal-junctional-failure-in-surgically-treated-patients-with-adult-spinal-deformity
#9
Mitsuru Yagi, Nobuyuki Fujita, Eijiro Okada, Osahiko Tsuji, Narihito Nagoshi, Takashi Asazuma, Ken Ishii, Masaya Nakamura, Morio Matsumoto, Kota Watanabe
STUDY DESIGN: Multi-center retrospective study. OBJECTIVE: To validate and improve the predictive model for proximal junctional failure (PJF) with or without the bone mineral density (BMD) score. SUMMARY OF BACKGROUND DATA: PJF is a serious complication of surgery for adult spinal deformity (ADS). A predictive model for PJF was recently reported that has good accuracy, but does not include BMD, a known PJF risk factor, as a variable. METHODS: We included 145 surgically treated ASD patients who were older than 50 at the time of surgery and had been followed up for at least 2 years...
September 8, 2017: Spine
https://www.readbyqxmd.com/read/28887273/use-of-the-dual-construct-for-the-management-of-complex-spinal-reconstructions
#10
Francis H Shen, Rabia Qureshi, Rose Tyger, Rebecca Lehman, Anuj Singla, Adam Shimer, Hamid Hassanzadeh
BACKGROUND CONTEXT: Surgical management of complex spinal reconstructions remains a clinical challenge, as pseudoarthrosis with subsequent rod breakage can occur. Increased rod density in the form of "satellite" or "outrigger" rods have been described; however, rod-fracture above or below satellite rods persist and can result in dissociation of the construct, loss of correction, and recurrence of deformity. The use of four distinct and mechanically independent rods (Dual Construct) reduces this concern...
September 5, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28882354/surgical-treatment-with-pedicle-screws-of-scoliosis-associated-with-osteogenesis-imperfecta-in-children
#11
Lucas Piantoni, Mariano A Noel, Ida A Francheri Wilson, Carlos A Tello, Eduardo Galaretto, Rodrigo G Remondino, Ernesto S Bersusky
STUDY DESIGN: Retrospective study. OBJECTIVE: To assess results of posterior instrumented fusion using pedicle screws in 12 children with osteogenesis imperfecta (OI) with spinal deformity at a single institution from 2001 to 2012. SUMMARY OF BACKGROUND DATA: This is the first case series of OI patients who underwent non-cement augmented screw-rod instrumented fusion published in the literature. METHODS: Of a total of 54 children with spinal deformity associated with OI, 12 (22...
September 2017: Spine Deformity
https://www.readbyqxmd.com/read/28874968/posterior-only-approach-with-pedicle-screws-for-the-correction-of-scheuermann-s-kyphosis
#12
Adem Cobden, Akif Albayrak, Yalkin Camurcu, Hakan Sofu, Temel Tacal, Mehmet Akif Kaygusuz
STUDY DESIGN: Retrospective study (level of evidence: level 3). PURPOSE: The purpose of this study was to evaluate the clinical and radiological results of the posterior-only approach with pedicle screws for the treatment of Scheuermann's kyphosis (SK). OVERVIEW OF LITERATURE: The correction of SK with instrumentation can be performed using posterior-only or combined anterior-posterior procedures. With the use of all-pedicle screw constructs in spine surgery, the posterior-only approach has become a popular option for the definitive treatment of SK...
August 2017: Asian Spine Journal
https://www.readbyqxmd.com/read/28853596/a-novel-technique-to-reduce-proximal-junctional-kyphosis-in-adults
#13
L Tillotson, O M Stokes, D Chan
No abstract text is available yet for this article.
September 2017: Annals of the Royal College of Surgeons of England
https://www.readbyqxmd.com/read/28799837/effectiveness-of-deformity-correction-surgery-for-primary-degenerative-sagittal-imbalance-a-meta-analysis
#14
Chang-Hyun Lee, Chun Kee Chung, Jee-Soo Jang, Sung-Min Kim, Dong-Kyu Chin, Jung-Kil Lee, Seung Hwan Yoon, Jae Taek Hong, Yoon Ha, Chi Heon Kim, Seung-Jae Hyun
OBJECTIVE As life expectancy continues to increase, primary degenerative sagittal imbalance (PDSI) is diagnosed in an increasing number of elderly people. Although corrective surgery for this sagittal deformity is becoming more popular, the effectiveness of the procedure remains unclear. The authors aimed to collate the available evidence on the effectiveness and complications of deformity-correction surgery in patients with PDSI. METHODS The authors carried out a meta-analysis of clinical studies regarding deformity correction in patients with PDSI...
November 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28767638/low-bone-mineral-density-is-a-significant-risk-for-proximal-junctional-failure-after-surgical-correction-of-adult-spinal-deformity-a-propensity-score-matched-analysis
#15
Mitsuru Yagi, Nobuyuki Fujita, Osahiko Tsuji, Narihito Nagoshi, Takashi Asazuma, Ken Ishii, Masaya Nakamura, Morio Matsumoto, Kota Watanabe
STUDY DESIGN: A propensity-matched comparison of risk factors for proximal junctional failure (PJF), which is a symptomatic proximal junctional kyphosis developing after corrective surgery for adult spinal deformity (ASD). OBJECTIVE: To elucidate the role of bone strength for developing PJF. SUMMARY OF BACKGROUND DATA: PJF, a devastating complication of corrective surgery for ASD, often recurs even after revision surgery. Most studies of risk factors for PJF are retrospective and have a selection bias in surgical strategy, making it difficult to identify modifiable PJF risk factors...
August 1, 2017: Spine
https://www.readbyqxmd.com/read/28682881/pedicle-screw-versus-hybrid-instrumentation-in-adolescent-idiopathic-scoliosis-a-systematic-review-and-meta-analysis-with-emphasis-on-complications-and-reoperations
#16
REVIEW
Ming Luo, Ning Li, Mingkui Shen, Lei Xia
BACKGROUND: Incidence of complications and reoperations between pedicle screw (PS) and hybrid instrumentations (HI) are still controversial in adolescent idiopathic scoliosis (AIS) patients. A systematic review and meta-analysis were performed to compare overall complications, reoperations, and radiographic outcomes between the 2 constructs. METHODS: Strictly followed the PRISMA 2009 guidelines, the MEDLINE, EMBASE, and the Cochrane Library databases were used to search for literatures up to April 2016, addressing PS versus HI in AIS patients...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28660108/distal-fusion-level-selection-in-scheuermann-s-kyphosis-a-comparison-of-lordotic-disc-segment-versus-the-sagittal-stable-vertebrae
#17
Han Jo Kim, Venu Nemani, Oheneba Boachie-Adjei, Matthew E Cunningham, Justin A Iorio, Kevin O'Neill, Brian J Neuman, Lawrence G Lenke
STUDY DESIGN: Retrospective study. OBJECTIVE: To compare 2 methods of selecting the lowest instrumented vertebra (LIV) on the rates of revision surgery for distal junctional kyphosis (DJK) following treatment for Scheuermann's kyphosis (SK). METHODS: A retrospective review of patients who have undergone surgical treatment for SK was performed. Forty-four patients were divided into 2 groups based on intervention: Group 1 (n = 26) included patients who had an LIV distal to or at the sagittal stable vertebrae (SSV), and Group 2 (n = 18) included patients who had an LIV proximal to the SSV...
May 2017: Global Spine Journal
https://www.readbyqxmd.com/read/28658032/assessment-of-the-change-in-alignment-of-fixed-segment-after-adult-spinal-deformity-surgery
#18
Tomohiro Banno, Tomohiko Hasegawa, Yu Yamato, Sho Kobayashi, Daisuke Togawa, Go Yoshida, Tatsuya Yasuda, Shin Oe, Yuki Mihara, Hiroki Ushirozako, Yukihiro Matsuyama
STUDY DESIGN: Retrospective study OBJECTIVE.: To determine the prevalence of loss in fixed segment alignment after surgical correction of adult spinal deformity (ASD) and identify associated risk factors. SUMMARY OF BACKGROUND DATA: Altered fixed segment alignment influences global spinal alignment; however, associated risk factors have not been determined. METHODS: Data of 63 patients with ASD (55 women; mean age, 68.0 years), who underwent corrective fusion from the lower thoracic spine to the pelvis and completed the 2-year follow-up, were retrospectively analyzed...
June 27, 2017: Spine
https://www.readbyqxmd.com/read/28597300/proximal-junctional-kyphosis-in-adult-scoliosis-comparison-of-four-radiological-predictor-models
#19
Amer Sebaaly, Guillaume Riouallon, Ibrahim Obeid, Pierre Grobost, Maroun Rizkallah, Fethi Laouissat, Yann-Phillippe Charles, Pierre Roussouly
OBJECTIVE: The objective of this retrospective study is to identify the best immediate postoperative radiological predictors for the occurrence of proximal junctional kyphosis (PJK). Four proposed methods will be explored. METHODS: A homogeneous database of adult scoliosis from multiple centers was used. Patients with whole spine X-rays at the required follow-up (FU) periods were included. Spinal and pelvic parameters were measured and calculated to compare four predictive methods: Method 1: assessment of the global sagittal alignment (GSA); Method 2: restoration of the theoretical values of lumbar lordosis (LL) and thoracic kyphosis (TK) according to pelvic incidence (PI); Method 3: evaluation of TK + LL, and Method 4: restoration of the apex of sagittal LL to its theoretical values according to various spine shapes in Roussouly Classification...
June 9, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28592076/-effects-of-different-pelvic-incidence-minus-lumbar-lordosis-mismatch-after-long-posterior-instrumentation-and-fusion-for-adult-degenerative-scoliosis
#20
X Y Sun, Y Hai, X N Zhang
Objective: To evaluate the influence of PI-LL (pelvic incidence minus lumbar lordosis mismatch) on scoliosis correction, living quality and internal fixation related complications for adult degenerative scoliosis (ASD) after long posterior instrumentation and fusion. Methods: A total of 79 patients with ADS underwent long posterior instrumentation and fusion in the Department of Orthopedics at Beijing Chao Yang Hospital from January 2010 to January 2014 were retrospectively reviewed.There were 21 males and 58 females aging from 55 to 72 years with the mean age (63...
June 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
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