دسترسی یکساله به بیش از ۵۰۰ ژورنال روز جهان موجود در سامانه
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Clinical outcomes of nonoperatively managed degenerative cervical myelopathy: an ambispective longitudinal cohort study in 117 patients
Allan R. Martin, Sukhvinder Kalsi-Ryan, Muhammad A. Akbar, Anna C. Rienmueller, Jetan H. Badhiwala, Jefferson R. Wilson, Lindsay A. Tetreault, Aria Nouri, Eric M. Massicotte, and Michael G. Fehlings
doi : 10.3171/2020.9.SPINE201395
Volume 34: Issue 6.page range:821_829
Degenerative cervical myelopathy (DCM) is among the most common pathologies affecting the spinal cord but its natural history is poorly characterized. The purpose of this study was to investigate functional outcomes in patients with DCM who were managed nonoperatively as well as the utility of quantitative clinical measures and MRI to detect deterioration.
Timing of conversion to cervical malalignment and proximal junctional kyphosis following surgical correction of adult spinal deformity: a 3-year radiographic analysis
Peter G. Passias, Haddy Alas, Sara Naessig, Han Jo Kim, Renaud Lafage, Christopher Ames, Eric Klineberg, Katherine Pierce, Waleed Ahmad, Douglas Burton, Bassel Diebo, Shay Bess, D. Kojo Hamilton, Munish Gupta, Paul Park, Breton Line, Christopher I. Shaffrey, Justin S. Smith, Frank Schwab, Virginie Lafage, and the International Spine Study Group
doi : 10.3171/2020.8.SPINE20320
Volume 34: Issue 6.page range:830_838
The goal of this study was to assess the conversion rate from baseline cervical alignment to postoperative cervical deformity (CD) and the corresponding proximal junctional kyphosis (PJK) rate in patients undergoing thoracolumbar adult spinal deformity (ASD) surgery.
The differential effect of cervical kyphosis correction surgery on global sagittal alignment and health-related quality of life according to head- and trunk-balanced subtype
Seung-Jae Hyun, Ki-Jeong Kim, and Tae-Ahn Jahng
doi : 10.3171/2020.9.SPINE201309
Volume 34: Issue 6.page range:839_848
No reports have investigated how cervical reconstructive surgery affects global sagittal alignment (GSA), including the lower extremities, and health-related quality of life (HRQOL). The study was aimed at elucidating the effects of cervical reconstruction on GSA and HRQOL.
Perioperative and swallowing outcomes in patients undergoing 4- and 5-level anterior cervical discectomy and fusion
S. Harrison Farber, David J. Mauler, Soumya Sagar, Mark A. Pacult, Corey T. Walker, Michael A. Bohl, Laura A. Snyder, Kristina M. Chapple, Volker K. H. Sonntag, Juan S. Uribe, Jay D. Turner, Steve W. Chang, and U. Kumar Kakarla
doi : 10.3171/2020.10.SPINE201307
Volume 34: Issue 6.page range:849_856
Anterior cervical discectomy and fusion (ACDF) is a common and robust procedure performed on the cervical spine. Literature on ACDF for 4 or more segments is sparse. Increasing the number of operative levels increases surgical complexity, tissue retraction, and risks of complications, particularly dysphagia. The overall risks of these complications and rates of dysphagia are not well studied for surgery on 4 or more segments. In this study, the authors evaluated their institution’s perioperative experience with 4- and 5-level ACDFs.
Sequential correction using satellite rod for severe thoracic idiopathic scoliosis: an effective method to optimize deformity correction
Yang Li, Benlong Shi, Dun Liu, Zhen Liu, Xu Sun, Yong Qiu, and Zezhang Zhu
doi : 10.3171/2020.9.SPINE201168
Volume 34: Issue 6.page range:857_863
The aim of this paper was to compare the radiographic and clinical outcomes between the sequential correction (SC) technique and the traditional 2-rod correction (TC) technique in patients with severe thoracic idiopathic scoliosis (STIS) undergoing posterior-only correction surgery.
Late-week surgery and discharge to specialty care associated with higher costs and longer lengths of stay after elective lumbar laminectomy
Sebastian Salas-Vega, Vikram B. Chakravarthy, Robert D. Winkelman, Matthew M. Grabowski, Ghaith Habboub, Jason W. Savage, Michael P. Steinmetz, and Thomas E. Mroz
doi : 10.3171/2020.11.SPINE201403
Volume 34: Issue 6.page range:864_870
In a healthcare landscape in which costs increasingly matter, the authors sought to distinguish among the clinical and nonclinical drivers of patient length of stay (LOS) in the hospital following elective lumbar laminectomy—a common spinal surgery that may be reimbursed using bundled payments—and to understand their relationships with patient outcomes and costs.
Key drivers of patient satisfaction with spine surgeons in the outpatient setting
Nicholas M. Rabah, Hammad A. Khan, Robert D. Winkelman, Jay M. Levin, Thomas E. Mroz, and Michael P. Steinmetz
doi : 10.3171/2020.9.SPINE201292
Volume 34: Issue 6.page range:871_878
The Consumer Assessment of Healthcare Providers and Systems Clinician & Group Survey (CG-CAHPS) was developed as a result of the value-based purchasing initiative by the Center for Medicare & Medicaid Services. It allows patients to rate their experience with their provider in the outpatient setting. These ratings are then reported in aggregate and made publicly available, allowing patients to make informed choices during physician selection. In this study, the authors sought to elucidate the primary drivers of patient satisfaction in the office-based spine surgery setting as represented by the CG-CAHPS.
Coronal balance with circumferential minimally invasive spinal deformity surgery for the treatment of degenerative scoliosis: are we leaning in the right direction?
Corey T. Walker, Jakub Godzik, Santiago Angel, Juan Pedro Giraldo, Jay D. Turner, and Juan S. Uribe
doi : 10.3171/2020.8.SPINE201147
Volume 34: Issue 6.page range:879_887
Coronal malalignment (CM) in adult spinal deformity is associated with poor outcomes and remains underappreciated in the literature. Recent attempts at classifying CM indicate that some coronal shifts may be more difficult to treat than others. To date, outcomes for circumferential minimally invasive surgery (cMIS) of the spine in the context of these new CM classifications are unreported.
Harmonized outcome measures for use in degenerative lumbar spondylolisthesis patient registries and clinical practice
Robert E. Harbaugh, Clinton Devin, Michelle B. Leavy, Zoher Ghogawala, Kristin R. Archer, Mohamad Bydon, Christine Goertz, Doron Dinstein, David R. Nerenz, Guy S. Eakin, William Lavelle, William O. Shaffer, Paul M. Arnold, Charles H. Washabaugh, and Richard E. Gliklich
doi : 10.3171/2020.9.SPINE20437
Volume 34: Issue 6.page range:888_896
The development of new treatment approaches for degenerative lumbar spondylolisthesis (DLS) has introduced many questions about comparative effectiveness and long-term outcomes. Patient registries collect robust, longitudinal data that could be combined or aggregated to form a national and potentially international research data infrastructure to address these and other research questions. However, linking data across registries is challenging because registries typically define and capture different outcome measures.
Cobalt-chromium versus titanium alloy rods for correction of adolescent idiopathic scoliosis based on 1-year follow-up: a multicenter randomized controlled clinical trial
Daisuke Sakai, Masato Tanaka, Jun Takahashi, Yuki Taniguchi, Jordy Schol, Akihiko Hiyama, Haruo Misawa, Shugo Kuraishi, Hiroki Oba, Yoshitaka Matsubayashi, So Kato, Ryo Sugawara, Masato Sato, Masahiko Watanabe, and Katsushi Takeshita
doi : 10.3171/2020.9.SPINE201486
Volume 34: Issue 6.page range:897_906
For instrumented correction surgery for adolescent idiopathic scoliosis (AIS), surgeons are increasingly switching from titanium (Ti) alloy rods to stiffer cobalt-chromium (CoCr) rods. The authors conducted the first multicenter randomized controlled clinical trial to investigate whether these materials affect the outcomes in terms of spine correction and quality of life (QOL). This trial was registered at UMIN Clinical Trials Registry on September 3, 2012, under the identifier UMIN000008838 (level of evidence 1).
Patient-related and radiographic predictors of inferior health-related quality-of-life measures in adult patients with nonoperative spinal deformity
Peter G. Passias, Haddy Alas, Shay Bess, Breton G. Line, Virginie Lafage, Renaud Lafage, Christopher P. Ames, Douglas C. Burton, Avery Brown, Cole Bortz, Katherine Pierce, Waleed Ahmad, Sara Naessig, Michael P. Kelly, Richard Hostin, Khaled M. Kebaish, Khoi D. Than, Pierce Nunley, Christopher I. Shaffrey, Eric O. Klineberg, Justin S. Smith, Frank J. Schwab, and the International Spine Study Group
doi : 10.3171/2020.9.SPINE20519
Volume 34: Issue 6.page range:907_913
Patients with nonoperative (N-Op) adult spinal deformity (ASD) have inferior long-term spinopelvic alignment and clinical outcomes. Predictors of lower quality-of-life measures in N-Op populations have yet to be sufficiently investigated. The aim of this study was to identify patient-related factors and radiographic parameters associated with inferior health-related quality-of-life (HRQOL) scores in N-Op ASD patients.
Different distal fixation anchors in lumbosacral spinal deformities associated with sacral agenesis: which one is better?
Tianyuan Zhang, Hongda Bao, Shibin Shu, Zhen Liu, Xu Sun, Bin Wang, Yong Qiu, and Zezhang Zhu
doi : 10.3171/2020.9.SPINE201390
Volume 34: Issue 6.page range:914_919
Sacral agenesis (SA) is a rare congenital malformation of the spine. There has been a paucity of clinical research to investigate the surgical outcome of spinopelvic fixation in these patients. In this study, the authors aimed to evaluate the outcome of different distal fixation anchors in lumbosacral spinal deformities associated with SA and to determine the optimal distal fixation anchor.
Intradural spinal cord arteriovenous shunts in a personal series of 210 patients: novel classification with emphasis on anatomical disposition and angioarchitectonic distribution, related to spinal cord histogenetic units
Katsuhiro Mizutani, Arturo Consoli, Federico Di Maria, Stéphanie Condette Auliac, Anne Boulin, Oguzhan Coskun, Julie Gratieux, and Georges Rodesch
doi : 10.3171/2020.9.SPINE201258
Volume 34: Issue 6 .page range:920-930
Few classifications of intradural spinal arteriovenous shunts (ID-SAVSs) have considered their anatomical localization in relation to their phenotype and angioarchitectonics. The authors propose another vision of ID-SAVSs allowing a reappraised classification based on analysis of the anatomical disposition, angioarchitecture, and histogenetic location of these vascular malformations.
The inhibitory effects of vancomycin on rat bone marrow–derived mesenchymal stem cell differentiation
Kari Hanson, Carly Isder, Kristen Shogren, Anthony L. Mikula, Lichun Lu, Michael J. Yaszemski, and Benjamin D. Elder
doi : 10.3171/2020.10.SPINE201511
Volume 34: Issue 6.page range:931_935
The use of intrawound vancomycin powder in spine surgery has been shown to decrease the rate of surgical site infections; however, the optimal dose is unknown. High-dose vancomycin inhibits osteoblast proliferation in vitro and may decrease the rate of solid arthrodesis. Bone marrow–derived mesenchymal stem cells (BMSCs) are multipotent cells that are a source of osteogenesis in spine fusions. The purpose of this study was to determine the effects of vancomycin on rat BMSC viability and differentiation in vitro.
Posterior spinal fixation using penetrating endplate screws in patients with diffuse idiopathic skeletal hyperostosis–related thoracolumbar fractures
Takahisa Hishiya, Tetsuhiro Ishikawa, and Mitsutoshi Ota
doi : 10.3171/2020.10.SPINE201387
Volume 34: Issue 6.page range:936_941
Diffuse idiopathic skeletal hyperostosis (DISH)–related vertebral fractures essentially require operative treatment due to severe fracture site instability and high potential risk of posttraumatic neurological deficit. However, the optimal surgical procedure remains unclear. The purpose of this study was to assess the efficacy of posterior spinal fixation with penetrating endplate screws (PESs) for DISH-related thoracolumbar fractures.
Tethered spinal cord syndrome in adults in the MRI era: recognition, pathology, and long-term objective outcomes
Arnold H. Menezes, Scott C. Seaman, Matthew A. Howard III, Patrick W. Hitchon, and Elizabeth B. Takacs
doi : 10.3171/2020.9.SPINE201453
Volume 34: Issue 6.page range:942_954
Tethered cord syndrome (TCS) has been well described in pediatric patients. Many recent reports of TCS in adult patients have grouped retethering patients with newly diagnosed ones without separately analyzing each entity and outcome. The authors reviewed their experience of newly diagnosed adult TCS patients to identify and explore TCS misdiagnosis, recognition, subtype pathology, and individual objective outcomes.
Letter to the Editor. Randomized trial for degenerative cervical myelopathy
Shrijith Murlidharan Bhavaninilayam, Sachin Anil Borkar, Kanwaljeet Garg, Manoj Phalak, and Shashank Sharad Kale
doi : 10.3171/2020.12.SPINE202078
Volume 34: Issue 6.page range:955_956
Letter to the Editor. Randomized controlled trials on anterior versus posterior surgical decompression for degenerative cervical myelopathy
Mario Ganau, Mohammad Iqbal, Gianfranco K. I. Ligarotti, and So Kato
doi : 10.3171/2020.10.SPINE201895
Volume 34: Issue 6.page range:957-958
Letter to the Editor. Three- to four-level ACDF: more clinical outcomes and hybrid constructs
Varinder Singh Alg, Vinothan Sivasubramaniam, and Erlick Abilio Coelho Pereira
doi : 10.3171/2021.1.SPINE202224
Volume 34: Issue 6.page range:959_960
