Read by QxMD icon Read

Proximal junction kyphosis

Max S Riley, Lawrence G Lenke, Todd M Chapman, Brenda A Sides, Kathy M Blanke, Michael P Kelly
BACKGROUND: Short-term studies have shown improved outcomes and alignment after posterior vertebral column resection for severe spinal deformity. Our goal was to report long-term changes in radiographic and health-related quality-of-life measures in a consecutive series of pediatric and adult patients undergoing posterior vertebral column resection with a minimum follow-up of 5 years. METHODS: We reviewed all patients undergoing posterior vertebral column resection by a single surgeon prior to January 1, 2010, at a single institution...
March 7, 2018: Journal of Bone and Joint Surgery. American Volume
Jian Zhao, Mingyuan Yang, Yilin Yang, Xin Yin, Changwei Yang, Li Li, Ming Li
PURPOSE: Proximal junctional kyphosis (PJK) is a devastating complication for adult spinal deformity (ASD) after correction surgery. However, there is no consensus on the risk factors of PJK, and whether it can be predicted remains unknown. The aim of this study is to detect the primary risk factors for PJK in ASD, and introduce a novel index for prediction of PJK. METHODS: Medical records of 62 ASD patients receiving correction surgery from January 2010 to January 2015 were analyzed...
March 5, 2018: European Spine Journal
Michael M Safaee, Vedat Deviren, Cecilia Dalle Ore, Justin K Scheer, Darryl Lau, Joseph A Osorio, Fred Nicholls, Christopher P Ames
OBJECTIVE Proximal junctional kyphosis (PJK) is a well-recognized, yet incompletely defined, complication of adult spinal deformity surgery. There is no standardized definition for PJK, but most studies describe PJK as an increase in the proximal junctional angle (PJA) of greater than 10°-20°. Ligament augmentation is a novel strategy for PJK reduction that provides strength to the upper instrumented vertebra (UIV) and adjacent segments while also reducing junctional stress at those levels. METHODS In this study, ligament augmentation was used in a consecutive series of adult spinal deformity patients at a single institution...
February 23, 2018: Journal of Neurosurgery. Spine
B G Diebo, N V Shah, S G Stroud, C B Paulino, F J Schwab, V Lafage
Although surgical techniques pertaining to adult spinal deformity (ASD) have advanced over the last decade, proximal junctional kyphosis (PJK) is still a complication following surgery for ASD that continues to significantly challenge clinicians. This article aimed to report on the prevalence of PJK as well as enhance understanding of surgically modifiable and non-modifiable risk factors of PJK to guide management of this postoperative complication of ASD. As the understanding of the pathogenesis as well as surgical modifications aimed at reducing the incidence of PJK have advanced, so too should clinicians' ability to implement more patient-specific operative plans and improve outcomes following realignment surgery for ASD...
February 14, 2018: Der Orthopäde
Tobias Lange, Tobias L Schulte, Georg Gosheger, Albert Schulze Boevingloh, Raul Mayr, Werner Schmoelz
BACKGROUND: Spinous processes and posterior ligaments, such as inter- and supraspinous ligaments are often sacrificed either deliberately to harvest osseous material for final spondylodesis e.g. in deformity corrective surgery or accidentally after posterior spinal instrumentation. This biomechanical study evaluates the potential destabilizing effect of a progressive dissection of the posterior ligaments (PL) after instrumented spinal fusion as a potential risk factor for proximal junctional kyphosis (PJK)...
February 14, 2018: BMC Musculoskeletal Disorders
Vibhu K Viswanathan, Sunil Kukreja, Amy J Minnema, H Francis Farhadi
OBJECTIVE Proximal junctional kyphosis (PJK) can progress to proximal junctional failure (PJF), a widely recognized early and serious complication of multisegment spinal instrumentation for the treatment of adult spinal deformity (ASD). Sublaminar band placement has been suggested as a possible technique to prevent PJK and PJF but carries the theoretical possibility of a paradoxical increase in these complications as a result of the required muscle dissection and posterior ligamentous disruption. In this study, the authors prospectively assess the safety as well as the early clinical and radiological outcomes of sublaminar band insertion at the upper instrumented vertebra (UIV) plus 1 level (UIV+1)...
February 9, 2018: Journal of Neurosurgery. Spine
Xi Chen, Liang Xu, Yong Qiu, Zhong-Hui Chen, Ze-Zhang Zhu, Song Li, Xu Sun
STUDY DESIGN: A retrospective study. OBJECTIVE: To investigate the incidence, risk factors, and evolution of proximal junctional kyphosis (PJK) in young children who underwent posterior hemivertebra resection and short fusion. SUMMARY OF BACKGROUND DATA: PJK is an undesired, but common complication following posterior spinal fusion. However, there is a paucity of data on PJK in young children after posterior hemivertebra resection and short fusion...
February 6, 2018: Spine
Kuenzang Wangdi, Bungo Otsuki, Shunsuke Fujibayashi, Shimei Tanida, Kazutaka Masamoto, Shuichi Matsuda
PURPOSE: To report on suggested technique with four screws in a single vertebra (two pedicle screws and two direct vertebral body screws) for enhanced fixation with just one level cranially to a pedicle subtraction osteotomy (PSO). METHODS: A 60-year-old woman underwent L4/5 fusion surgery for degenerative spondylolisthesis. Two years later, she was unable to stand upright even for a short time because of lumbar kyphosis caused by subsidence of the fusion cage and of Baastrup syndrome in the upper lumbar spine [sagittal vertical axis (SVA) of 114 mm, pelvic incidence of 75°, and lumbar lordosis (LL) of 41°]...
February 7, 2018: European Spine Journal
Baron S Lonner, Stefan Parent, Suken A Shah, Paul Sponseller, Burt Yaszay, Amer F Samdani, Patrick J Cahill, Joshua M Pahys, Randal Betz, Yuan Ren, Harry L Shufflebarger, Peter O Newton
INTRODUCTION: Sagittal alignment abnormalities in Scheuermann kyphosis (SK) strongly correlate with quality of life measures. The changes in spinopelvic parameters after posterior spinal fusion have not been adequately studied. This study is to evaluate the reciprocal changes in spinopelvic parameters following surgical correction for SK. METHODS: Ninety-six operative SK patients (65% male; age 16 years) with minimum 2-year follow-up were identified in the prospective multicenter study...
March 2018: Spine Deformity
Brice Ilharreborde
INTRODUCTION: In the last decade, spine surgeons have been impacted by the "sagittal plane analysis revolution". Significant correlations have been found in adult spinal deformity (ASD) between sagittal lumbo-pelvic parameters and functional outcomes, but most of them do not apply in adolescent idiopathic scoliosis (AIS). Meanwhile, instrumentation and reduction strategies have considerably evolved. This paper aims to describe the preoperative sagittal alignment in AIS, and to report literature evidence regarding the influence of postoperative sagittal balance on complication rates, low back pain incidence and disc degeneration...
January 24, 2018: European Spine Journal
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
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
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
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
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
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
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
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
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
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
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"