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Scariano G, Meade S, Sultan A, Shost M, Benzel EC, Krishnaney A, Mroz T, Steinmetz MP, Habboub G. Exploring tribology and material contact science in spine surgery: implications for implant design. J Neurosurg Spine 2024:1-10. [PMID: 38518282 DOI: 10.3171/2024.1.spine231047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 01/03/2024] [Indexed: 03/24/2024]
Abstract
Tribology, an interdisciplinary field concerned with the science of interactions between surfaces in contact and their relative motion, plays a well-established role in the design of orthopedic implants, such as knee and hip replacements. However, its applications in spine surgery have received comparatively less attention in the literature. Understanding tribology is pivotal in elucidating the intricate interactions between metal, polymer, and ceramic components, as well as their interplay with the native human bone. Numerous studies have demonstrated that optimizing tribological factors is key to enhancing the longevity of joints and implants while simultaneously reducing complications and the need for revision surgeries in both arthroplasty and spinal fusion procedures. With an ever-growing and diverse array of spinal implant devices hitting the market for static and dynamic stabilization of the spine, it is important to consider how each of these devices optimizes these parameters and what factors may be inadequately addressed by currently available technology and methods. In this comprehensive review, the authors' objectives were twofold: 1) delineate the unique challenges encountered in spine surgery that could be addressed through optimization of tribological parameters; and 2) summarize current innovations and products within spine surgery that look to optimize tribological parameters and highlight new avenues for implant design and research.
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Affiliation(s)
- Gabrielle Scariano
- 1Case Western Reserve University School of Medicine, Cleveland
- Departments of2Orthopaedic Surgery and
| | - Seth Meade
- 3Neurosurgery, and
- 4Cleveland Clinic Lerner College of Medicine, Cleveland, Ohio
- 5Center for Spine Health, Cleveland Clinic Foundation, Cleveland; and
| | - Assem Sultan
- Departments of2Orthopaedic Surgery and
- 5Center for Spine Health, Cleveland Clinic Foundation, Cleveland; and
| | - Michael Shost
- 1Case Western Reserve University School of Medicine, Cleveland
- 3Neurosurgery, and
- 5Center for Spine Health, Cleveland Clinic Foundation, Cleveland; and
| | - Edward C Benzel
- 3Neurosurgery, and
- 5Center for Spine Health, Cleveland Clinic Foundation, Cleveland; and
| | - Ajit Krishnaney
- 3Neurosurgery, and
- 5Center for Spine Health, Cleveland Clinic Foundation, Cleveland; and
| | - Thomas Mroz
- Departments of2Orthopaedic Surgery and
- 5Center for Spine Health, Cleveland Clinic Foundation, Cleveland; and
| | - Michael P Steinmetz
- 3Neurosurgery, and
- 4Cleveland Clinic Lerner College of Medicine, Cleveland, Ohio
- 5Center for Spine Health, Cleveland Clinic Foundation, Cleveland; and
| | - Ghaith Habboub
- 3Neurosurgery, and
- 4Cleveland Clinic Lerner College of Medicine, Cleveland, Ohio
- 5Center for Spine Health, Cleveland Clinic Foundation, Cleveland; and
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Davison MA, Lilly DT, Patel AA, Kashkoush A, Chen X, Wei W, Benzel EC, Prayson RA, Chao S, Angelov L. Clinical presentation and extent of resection impacts progression-free survival in spinal ependymomas. J Neurooncol 2024:10.1007/s11060-024-04623-4. [PMID: 38438766 DOI: 10.1007/s11060-024-04623-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 02/26/2024] [Indexed: 03/06/2024]
Abstract
PURPOSE Primary treatment of spinal ependymomas involves surgical resection, however recurrence ranges between 50 and 70%. While the association of survival outcomes with lesion extent of resection (EOR) has been studied, existing analyses are limited by small samples and archaic data resulting in an inhomogeneous population. We investigated the relationship between EOR and survival outcomes, chiefly overall survival (OS) and progression-free survival (PFS), in a large contemporary cohort of spinal ependymoma patients. METHODS Adult patients diagnosed with a spinal ependymoma from 2006 to 2021 were identified from an institutional registry. Patients undergoing primary surgical resection at our institution, ≥ 1 routine follow-up MRI, and pathologic diagnosis of ependymoma were included. Records were reviewed for demographic information, EOR, lesion characteristics, and pre-/post-operative neurologic symptoms. EOR was divided into 2 classifications: gross total resection (GTR) and subtotal resection (STR). Log-rank test was used to compare OS and PFS between patient groups. RESULTS Sixty-nine patients satisfied inclusion criteria, with 79.7% benefitting from GTR. The population was 56.2% male with average age of 45.7 years, and median follow-up duration of 58 months. Cox multivariate model demonstrated significant improvement in PFS when a GTR was attained (p <.001). Independently ambulatory patients prior to surgery had superior PFS (p <.001) and OS (p =.05). In univariate analyses, patients with a syrinx had improved PFS (p =.03) and were more likely to benefit from GTR (p =.01). Alternatively, OS was not affected by EOR (p =.78). CONCLUSIONS In this large, contemporary series of adult spinal ependymoma patients, we demonstrated improvements in PFS when GTR was achieved.
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Affiliation(s)
- Mark A Davison
- Department of Neurosurgery, Neurological Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Daniel T Lilly
- Department of Neurosurgery, Neurological Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Arpan A Patel
- Department of Neurosurgery, Neurological Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Ahmed Kashkoush
- Department of Neurosurgery, Neurological Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Xiaoying Chen
- Department of Quantitative Health Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Wei Wei
- Department of Quantitative Health Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Edward C Benzel
- Department of Neurosurgery, Neurological Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Richard A Prayson
- Department of Anatomic Pathology, The Robert J. Tomsich Pathology and Laboratory Medicine Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Samuel Chao
- Department of Neurosurgery, Neurological Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Lilyana Angelov
- Department of Neurosurgery, Neurological Institute, Cleveland Clinic, Cleveland, OH, USA.
- Rose Ella Burkhardt Brain Tumor & Neuro-Oncology Center, Cleveland Clinic, Cleveland, OH, USA.
- Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, OH, USA.
- Neurologic Oncology and Radiosurgery Fellowships, Neurological Surgery, CCLCM at CWRU, Rose Ella Burkhardt Brain Tumor & Neuro-Oncology Center, 9500 Euclid Ave., CA-51, 44195, Cleveland, OH, USA.
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3
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Saremi A, Goyal KK, Benzel EC, Orr RD. Evolution of lumbar degenerative spondylolisthesis with key radiographic features. Spine J 2024:S1529-9430(24)00009-3. [PMID: 38199449 DOI: 10.1016/j.spinee.2024.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 12/04/2023] [Accepted: 01/02/2024] [Indexed: 01/12/2024]
Abstract
Spondylolisthesis is a common finding in middle-aged and older adults with back pain. The pathophysiology of degenerative spondylolisthesis is a subject of controversy regarding not only its etiology but also the mechanisms of its progression. It is theorized that degeneration of the facets and discs can lead to segmental instability, leading to displacement over time. Kirkaldy-Willis divided degenerative spondylolisthesis into three phases: dysfunction, instability, and finally, restabilization. There is a paucity of literature on the unification of the radiological hallmarks seen in spondylolisthesis within these phases. The radiographic features include (1) facet morphology/arthropathy, (2) facet effusion, (3) facet vacuum, (4) synovial cyst, (5) interspinous ligament bursitis, and (6) vacuum disc as markers of dysfunction, instability, and/or restabilization. We discuss these features, which can be seen on X-ray, CT, and MRI, with the intention of establishing a timeline upon which they present clinically. Spondylolisthesis is initiated as either degeneration of the intervertebral disc or facet joints. Early degeneration can be seen as facet vacuum without considerable arthropathy. As the vertebral segment becomes increasingly dynamic, fluid accumulates within the facet joint space. Further degeneration will lead to the advancement of facet arthropathy, degenerative disc disease, and posterior ligamentous complex pathology. Facet effusion can eventually be replaced with a vacuum in severe facet osteoarthritis. Intervertebral disc vacuum continues to accumulate with further cleft formation and degeneration. Ultimately, autofusion of the vertebra at the facets and endplates can be observed. With this review, we hope to increase awareness of these radiographical markers and their timeline, thus placing them within the framework of the currently accepted model of degenerative spondylolisthesis, to help guide future research and to help refine management guidelines.
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Affiliation(s)
- Arvin Saremi
- Center for Spine Health, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH 44195, USA; Case Western Reserve University School of Medicine, 9501 Euclid Ave, Cleveland, OH 44106, USA.
| | - Kush K Goyal
- Center for Spine Health, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH 44195, USA
| | - Edward C Benzel
- Center for Spine Health, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH 44195, USA
| | - R Douglas Orr
- Center for Spine Health, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH 44195, USA
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4
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Sundar SJ, Whiting BB, Lubelski D, Steinmetz MP, Mroz TE, Benzel EC. Key factors for enhancing academic productivity and fostering mentorship in spine research: the Cleveland Clinic Center for Spine Health approach to sustaining success. Spine J 2024; 24:14-20. [PMID: 37838009 DOI: 10.1016/j.spinee.2023.09.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 09/15/2023] [Accepted: 09/26/2023] [Indexed: 10/16/2023]
Affiliation(s)
- Swetha J Sundar
- Department of Neurological Surgery, Neurological Institute, Cleveland Clinic Lerner College of Medicine, 9500 Euclid Ave, S-40, Cleveland, OH 44195, USA.
| | - Benjamin B Whiting
- Department of Neurological Surgery, Neurological Institute, Cleveland Clinic Lerner College of Medicine, 9500 Euclid Ave, S-40, Cleveland, OH 44195, USA
| | - Daniel Lubelski
- Department of Neurological Surgery, Johns Hopkins University, Baltimore, MD, USA
| | - Michael P Steinmetz
- Department of Neurological Surgery, Neurological Institute, Cleveland Clinic Lerner College of Medicine, 9500 Euclid Ave, S-40, Cleveland, OH 44195, USA; Center for Spine Health, Neurological Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Thomas E Mroz
- Center for Spine Health, Neurological Institute, Cleveland Clinic, Cleveland, OH, USA; Department of Orthopaedic Surgery, Orthopaedic and Rheumatologic Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Edward C Benzel
- Department of Neurological Surgery, Neurological Institute, Cleveland Clinic Lerner College of Medicine, 9500 Euclid Ave, S-40, Cleveland, OH 44195, USA; Center for Spine Health, Neurological Institute, Cleveland Clinic, Cleveland, OH, USA
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5
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Meade SM, Salas-Vega S, Nagy MR, Sundar SJ, Steinmetz MP, Benzel EC, Habboub G. A Pilot Remote Curriculum to Enhance Resident and Medical Student Understanding of Machine Learning in Healthcare. World Neurosurg 2023; 180:e142-e148. [PMID: 37696433 DOI: 10.1016/j.wneu.2023.09.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 08/22/2023] [Accepted: 09/04/2023] [Indexed: 09/13/2023]
Abstract
BACKGROUND Despite the expanding role of machine learning (ML) in health care and patient expectations for clinicians to understand ML-based tools, few for-credit curricula exist specifically for neurosurgical trainees to learn basic principles and implications of ML for medical research and clinical practice. We implemented a novel, remotely delivered curriculum designed to develop literacy in ML for neurosurgical trainees. METHODS A 4-week pilot medical elective was designed specifically for trainees to build literacy in basic ML concepts. Qualitative feedback from interested and enrolled students was collected to assess students' and trainees' reactions, learning, and future application of course content. RESULTS Despite 15 interested learners, only 3 medical students and 1 neurosurgical resident completed the course. Enrollment included students and trainees from 3 different institutions. All learners who completed the course found the lectures relevant to their future practice as clinicians and researchers and reported improved confidence in applying and understanding published literature applying ML techniques in health care. Barriers to ample enrollment and retention (e.g., balancing clinical responsibilities) were identified. CONCLUSIONS This pilot elective demonstrated the interest, value, and feasibility of a remote elective to establish ML literacy; however, feedback to increase accessibility and flexibility of the course encouraged our team to implement changes. Future elective iterations will have a semiannual, 2-week format, splitting lectures more clearly between theory (the method and its value) and application (coding instructions) and will make lectures open-source prerequisites to allow tailoring of student learning to their planned application of these methods in their practice and research.
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Affiliation(s)
- Seth M Meade
- Department of Neurosurgery, Cleveland Clinic Lerner College of Medicine, Cleveland, Ohio, USA; Case Western School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA; Department of Neurosurgery, Neurologic Institute, Center for Spine Health, Cleveland Clinic Foundation, Cleveland, Ohio, USA.
| | - Sebastian Salas-Vega
- Case Western School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA; Department of Neurosurgery, Neurologic Institute, Center for Spine Health, Cleveland Clinic Foundation, Cleveland, Ohio, USA; Department of Neurosurgery, Inova Health System, Falls Church, Virginia, USA
| | - Matthew R Nagy
- Department of Neurosurgery, Cleveland Clinic Lerner College of Medicine, Cleveland, Ohio, USA; Case Western School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
| | - Swetha J Sundar
- Department of Neurosurgery, Cleveland Clinic Lerner College of Medicine, Cleveland, Ohio, USA; Department of Neurosurgery, Neurologic Institute, Center for Spine Health, Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - Michael P Steinmetz
- Department of Neurosurgery, Cleveland Clinic Lerner College of Medicine, Cleveland, Ohio, USA; Department of Neurosurgery, Neurologic Institute, Center for Spine Health, Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - Edward C Benzel
- Department of Neurosurgery, Cleveland Clinic Lerner College of Medicine, Cleveland, Ohio, USA; Department of Neurosurgery, Neurologic Institute, Center for Spine Health, Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - Ghaith Habboub
- Department of Neurosurgery, Cleveland Clinic Lerner College of Medicine, Cleveland, Ohio, USA; Department of Neurosurgery, Neurologic Institute, Center for Spine Health, Cleveland Clinic Foundation, Cleveland, Ohio, USA
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Shlobin NA, Savage S, Savage A, Torbati T, Wang Z, Salas-Vega S, Mota M, Pando A, Sheldon B, Westrup AM, Ogulnick J, Zreik J, AlKahtani NAH, Jesuyajolu D, Larrey KK, Fadalla T, Mahajan U, Manijla N, Singh R, Wang A, Kanmounye US, Moore C, Benzel EC, Rosseau G. The World Neurosurgery Global Champions Program: First-Year Experience of a Model Initiative for Reducing Disparities in Global Neurosurgical Literature. World Neurosurg 2023:S1878-8750(23)00783-0. [PMID: 37301534 DOI: 10.1016/j.wneu.2023.06.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
OBJECTIVE Most surgical journals are published in English, representing a challenge for researchers from non-Anglophone countries. We describe the implementation, workflow, outcomes, and lessons learned from the World Neurosurgery Global Champions Program (GCP), a novel journal-specific English language editing program for articles rejected because of poor English grammar or usage. METHODS The GCP was advertised via the journal website and social media. Applicants were selected to be a reviewer for the GCP if they demonstrated English proficiency on writing samples supplied in their application. The demographics of GCP members and characteristics and outcomes of articles edited by the GCP during its first year were reviewed. Surveys of GCP members and authors who used the service were conducted. RESULTS Twenty-one individuals became part of the GCP, representing 8 countries and 16 languages apart from English. A total of 380 manuscripts were peer-reviewed by the editor-in-chief, who determined these manuscripts to have potentially worthwhile content but needed to be rejected due to poor language. The authors of these manuscripts were informed of the existence of this language assistance program. Forty-nine articles (12.9%) were edited by the GCP in 41.6 ± 22.8 days. Of 40 articles resubmitted to World Neurosurgery, 24 (60.0%) were accepted. GCP members and authors understood the purpose and workflow of the program and recognized improvements in article quality and the probability of acceptance through their participation. CONCLUSION The World Neurosurgery Global Champions Program mitigated a critical barrier to publication in an English language journal for authors from non-Anglophone countries. This program promotes research equity by providing a free, largely medical student and trainee operated, English language editing service. This model or a similar service can be replicated by other journals.
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Affiliation(s)
- Nathan A Shlobin
- Department of Neurological Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
| | - Simon Savage
- Department of Medicine, Monash University, Melbourne, Australia
| | | | - Tania Torbati
- Department of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, CA, USA
| | - Zhe Wang
- Department of Neurological Surgery, University of Chicago School of Medicine, Chicago, IL
| | | | - Marcella Mota
- Faculdade Ciências Médicas de Minas Gerais, Belo Horizonte, Brazil
| | - Alejandro Pando
- Department of Neurological Surgery, Rutgers New Jersey Medical School, Newark, New Jersey, USA
| | - Breanna Sheldon
- Department of Neurological Surgery, University of Arizona Tucson, Tucson, AZ, USA
| | - Alison M Westrup
- Department of Neurosurgery, University of Oklahoma College of Medicine, Oklahoma City, OK, USA
| | | | - Jad Zreik
- Central Michigan University College of Medicine, Mount Pleasant, MI, USA
| | - Nada A H AlKahtani
- College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - Damilola Jesuyajolu
- Department of Neurological Surgery, Salford Royal Hospital, Northern Care Alliance NHS Foundation Trust, Manchester, UK
| | - Kasereka Kamabu Larrey
- Division of Neurosurgery, Department of Surgery, College of Medicine, Makerere University, Uganda
| | - Tarig Fadalla
- Soba University of Hospital, University of Khartoum, Khartoum, Sudan
| | - Uma Mahajan
- School of Medicine, Case Western Reserve University, Cleveland, OH, USA
| | | | - Rohin Singh
- Department of Neurological Surgery, Mayo Clinic, Phoenix, AZ, USA
| | - Andrew Wang
- David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | | | | | - Edward C Benzel
- Department of Neurosurgery, Cleveland Clinic, Cleveland, OH, USA
| | - Gail Rosseau
- Department of Neurological Surgery, George Washington University School of Medicine and Health Sciences, Washington, DC, USA and Barrow Global, Barrow Neurological Institute, Phoenix, AZ
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Winkelman RD, Palmer P, Lilly D, Glauser G, Wright C, Habboub G, Krishnaney AA, Benzel EC, Schlenk R, Steinmetz MP. Characterizing the Next Generation of Neurosurgeons: A Descriptive Analysis and Publicly Available Web Application of Neurosurgery Residency Programs' Website Data. World Neurosurg 2023; 173:e76-e80. [PMID: 36754354 DOI: 10.1016/j.wneu.2023.01.122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/25/2023] [Accepted: 01/31/2023] [Indexed: 02/09/2023]
Abstract
OBJECTIVE Neurosurgery program websites serve as a valuable resource for applicants. However, each website exists in isolation, and it can be difficult to understand the general trends in U.S. neurosurgery resident demographics. In the present study, we collected data from program websites and analyzed the trends in the demographics of the current U.S. neurosurgery residents. METHODS We used a program list obtained from the American Association of Medical Colleges Electronic Residency Application System to extract data from the current resident complement listed in each program's website, including program, year in program, medical school, sex (male vs. female), graduate and/or PhD degrees, and assessed the trends during 7 years of resident data using linear regression. RESULTS We identified 116 neurosurgery residency programs in the United States, with 111 providing information on their current resident complement, yielding a dataset of 1599 residents. Of these 1599 residents, 348 (22%) were female, 301 (19%) had a graduate degree in addition to an MD or DO degree, 151 (9.4%) had a PhD degree, 300 (19%) had matched at the program affiliated with their medical school, and 121 (7.6%) had graduated from a foreign medical school. The proportion of matriculating female residents had increased an average of 2.1% annually (95% confidence interval, 0.6%-3.7%) from 2015 to 2021. The other demographic data had not changed significantly during the same period. CONCLUSIONS In addition to summarizing the current resident demographics, our analysis identified a significant increase in the proportion of female residents between 2015 (15.1%) and 2021 (25.6%). This publicly available dataset should enable additional analyses of the evolution of neurosurgery resident demographics.
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Affiliation(s)
- Robert D Winkelman
- Department of Neurosurgery, Cleveland Clinic Foundation, Cleveland, Ohio, USA.
| | - Peter Palmer
- Department of Neurosurgery, Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - Daniel Lilly
- Department of Neurosurgery, Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - Gregory Glauser
- Department of Neurosurgery, Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - Christina Wright
- Department of Neurosurgery, Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - Ghaith Habboub
- Department of Neurosurgery, Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - Ajit A Krishnaney
- Department of Neurosurgery, Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - Edward C Benzel
- Department of Neurosurgery, Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - Richard Schlenk
- Department of Neurosurgery, Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - Michael P Steinmetz
- Department of Neurosurgery, Cleveland Clinic Foundation, Cleveland, Ohio, USA
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Soni P, Davison MA, Battisti EA, Schmidt ES, Benzel EC, Steinmetz MP, Schlenk RP, Benzil DL. Standardized Interview Scoring Methodology for Neurosurgical Residency Applicant Selection. Neurosurgery 2022; 91:e155-e159. [PMID: 36094260 DOI: 10.1227/neu.0000000000002141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 07/12/2022] [Indexed: 12/15/2022] Open
Abstract
Interviews are critical to the neurosurgery resident application process. The COVID-19 pandemic forced residency interview activities are conducted virtually. To maintain a degree of control during a period of uncertainty, our department implemented a standardized survey for interviewers to evaluate the noncognitive attributes and program compatibility of applicants. Our objective was to assess the reliability and biases associated with our standardized interviewer survey implemented in neurosurgical residency interviews. A 5-question interviewer survey to assess applicant interview performance and program compatibility was implemented during the 2020 to 2021 interview season. After the application cycle, survey metrics were retrospectively reviewed. Multiple cohort analyses were performed by dividing interviewers into cohorts based on status (faculty or resident) and sex. Applicant scores were assessed within sex subgroups for each aforementioned interviewer cohort. Intraclass correlation coefficients (ICCs) were calculated to assess survey reliability. Fifteen interviewers (8 faculty and 7 residents) and 35 applicants were included. Female applicants (17%) and interviewers (20%) comprised the minority. There were no differences between resident and faculty reviewer scores; however, female reviewers gave higher overall scores than male reviewers ( P = .003). There was no difference in total scores between female and male applicants when evaluating all reviewers or subgroups of faculty, residents, females, or males. ICC analysis demonstrated good (ICC 0.75-0.90) or excellent (ICC > 0.90) reliability for all questions and overall score. The standardized interviewer survey was a feasible and reliable method for evaluating noncognitive attributes during neurosurgery residency interviews. There was no perceptible evidence of sex bias in our single-program experience.
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Affiliation(s)
- Pranay Soni
- Department of Neurological Surgery, Neurological Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Mark A Davison
- Department of Neurological Surgery, Neurological Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Elizabeth A Battisti
- Department of Neurological Surgery, Neurological Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Eric S Schmidt
- Department of Neurological Surgery, Neurological Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Edward C Benzel
- Department of Neurological Surgery, Neurological Institute, Cleveland Clinic, Cleveland, Ohio, USA.,Center for Spine Health, Neurological Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Michael P Steinmetz
- Department of Neurological Surgery, Neurological Institute, Cleveland Clinic, Cleveland, Ohio, USA.,Center for Spine Health, Neurological Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Richard P Schlenk
- Department of Neurological Surgery, Neurological Institute, Cleveland Clinic, Cleveland, Ohio, USA.,Center for Spine Health, Neurological Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Deborah L Benzil
- Department of Neurological Surgery, Neurological Institute, Cleveland Clinic, Cleveland, Ohio, USA.,Center for Spine Health, Neurological Institute, Cleveland Clinic, Cleveland, Ohio, USA
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Thompson NR, Lapin BR, Steinmetz MP, Benzel EC, Katzan IL. Mapping PROMIS physical function and pain interference to the modified low back pain disability questionnaire. Qual Life Res 2022; 31:3467-3482. [PMID: 35794422 DOI: 10.1007/s11136-022-03174-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/14/2022] [Indexed: 10/17/2022]
Abstract
PURPOSE The Modified Low Back Pain Disability Questionnaire (MDQ) is a commonly used tool to assess functioning of patients with low back pain (LBP). Recently, the Patient-Reported Outcomes Measurement Information System (PROMIS) was suggested as an alternative platform to assess LBP patient-reported health. We sought to map between the MDQ and PROMIS Physical Function (PROMIS-PF) and Pain Interference (PROMIS-PI) scales using multiple methods. METHODS In a retrospective analysis of LBP patients seen at Cleveland Clinic 11/14/18-12/11/19, T-scores from each PROMIS scale were mapped to MDQ total score individually and together. MDQ item and total scores were mapped to each PROMIS scale. Linear regression as well as linear and equipercentile equating were used. Split sample internal validation using root mean squared error (RMSE), mean absolute error (MAE), and correlations were used to assess accuracy of mapping equations. RESULTS 13585 patients completed the three scales. In the derivation cohort, average age was 59.0 (SD = 15.8); 53.3% female and 82.9% white. Average MDQ total, PROMIS-PF, and PROMIS-PI T-scores were 40.3 (SD = 19.0), 37.2 (SD = 7.6), and 62.9 (SD = 7.2), respectively. For estimating MDQ total scores, methods that used both PROMIS-PF and PROMIS-PI had closest estimated means, lowest RMSE and MAE, and highest correlations. For estimating each of PROMIS-PF and PROMIS-PI T-scores, the best performing method was equipercentile equating using the MDQ items. CONCLUSIONS We created and internally validated maps between MDQ and PROMIS-PF and PROMIS-PI using linear regression, linear and equipercentile equating. Our equations can be used by researchers wishing to translate scores between these scales.
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Affiliation(s)
- Nicolas R Thompson
- Department of Quantitative Health Sciences, Cleveland Clinic, 9500 Euclid Avenue, JJN3-1, Cleveland, OH, 44195, USA. .,Center for Outcomes Research and Evaluation, Neurological Institute, Cleveland Clinic, Cleveland, OH, USA.
| | - Brittany R Lapin
- Department of Quantitative Health Sciences, Cleveland Clinic, 9500 Euclid Avenue, JJN3-1, Cleveland, OH, 44195, USA.,Center for Outcomes Research and Evaluation, Neurological Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Michael P Steinmetz
- Center for Spine Health, Cleveland Clinic, Cleveland, OH, USA.,Department of Neurosurgery, Cleveland Clinic, Cleveland, OH, USA.,Cleveland Clinic Lerner College of Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Edward C Benzel
- Center for Spine Health, Cleveland Clinic, Cleveland, OH, USA
| | - Irene L Katzan
- Center for Outcomes Research and Evaluation, Neurological Institute, Cleveland Clinic, Cleveland, OH, USA
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Davison MA, Button KD, Benzel EC, Weaver BT, Rundell SA. A Biomechanical Assessment of Shaken Baby Syndrome: What About the Spine? World Neurosurg 2022; 163:e223-e229. [PMID: 35367390 DOI: 10.1016/j.wneu.2022.03.104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 03/18/2022] [Accepted: 03/23/2022] [Indexed: 11/26/2022]
Abstract
BACKGROUND Shaken baby syndrome occurs following inertial loading of the pediatric head, resulting in retinal hemorrhaging, subdural hematoma, and encephalopathy. However, the anatomically vulnerable cervical spine receives little attention. Automotive safety literature is replete with biomechanical data involving forward-facing pediatric surrogates in frontal collisions, an environment analogous to shaking. Publicly available data involving child occupants were utilized to study pediatric neck and head injury potential. We hypothesized that inertial loading provides a greater risk of injury to the cervical spine than to the head. METHODS Full-scale automotive crash tests (n = 131) and deceleration sled tests (n = 32) utilizing forward-facing 3-year-old surrogates with head accelerometers and cervical force sensors were analyzed. One hundred sixty-seven full-scale vehicle and 33 sled test runs were assessed in the context of published injury assessment reference values (IARVs) for closed head injury (head injury criterion 15 [HIC15]) and cervical tensile strength in the 3-year-old model. RESULTS One hundred sixty-one (96%) child surrogates in full-scale crash tests exceeded the cervical peak tension IARV, while only 37 (22%) surpassed the HIC15 IARV. Similarly, in sled testing runs, 27 (82%) pediatric surrogates exceeded cervical tension IARVs, while 1 (3%) surpassed the HIC15 IARV. In both full-scale and sled tests, all surrogates surpassing the HIC15 IARV also exceeded the cervical tension IARV. Positive linear correlations were observed between HIC15 and cervical tensile forces in both full-scale vehicle (R2 = 0.15) and sled testing runs (R2 = 0.54). CONCLUSIONS These data support the hypothesis that inertial loading of the head provides a greater injury risk to the cervical spine than to closed-head injury.
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Affiliation(s)
- Mark A Davison
- Department of Neurosurgery, Neurological Institute, Cleveland Clinic Foundation, Cleveland, Ohio, USA.
| | | | - Edward C Benzel
- Department of Neurosurgery, Neurological Institute, Cleveland Clinic Foundation, Cleveland, Ohio, USA
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11
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Srivatsa S, Khan HA, Benzel EC, Benzil DL, Mroz TE, Steinmetz MP, Salas-Vega S. Price transparency in neurosurgery: challenges and opportunities in the online publishing of treatment prices to enable cost-conscious and value-based practice. World Neurosurg 2022; 162:e511-e516. [DOI: 10.1016/j.wneu.2022.03.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 01/28/2022] [Accepted: 03/11/2022] [Indexed: 10/18/2022]
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12
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Ekşi MŞ, Özcan-Ekşi EE, Akkaş A, Orhun Ö, Arslan HN, Zarbizada M, Küçüksüleymanoğlu D, Pamir MN, Benzel EC. Intradiscal vacuum phenomenon and spinal degeneration: a cross-sectional analysis of 219 subjects. Curr Med Res Opin 2022; 38:255-263. [PMID: 34663160 DOI: 10.1080/03007995.2021.1994379] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
INTRODUCTION Intradiscal vacuum phenomenon (IVP) is the collection of gas within the intervertebral discs. It has been reported with various spinal disorders. The exact role of IVP in spinal degeneration leading to low back pain (LBP) is unclear. We aimed to obtain the prevalence of IVP in patients with LBP. Our second aim was to understand whether IVP was associated with intervertebral disc degeneration (IVDD), Modic changes, and subchondral sclerosis (SS). METHODS A total of 12.450 consecutive patients with chronic LBP were evaluated in terms of having abdominal computed tomography (CT) scan concomitant with lumbar spine magnetic resonance imaging (MRI) using radiological database of three spine centers. We excluded the patients with a history of malignancy, metabolic disease, spinal infection, traumatic or osteoporotic spine fracture, and spine surgery. All lumbar levels were evaluated in terms of IVDD and Modic changes on MRI, while they were evaluated in terms of IVP and SS on CT scans. RESULTS We included 219 patients. Severe IVDD, Modic changes, IVP, and SS were seen in 53.9% (n: 118), 38.8% (n: 85), 26.5% (n: 58), and 16% (n: 35) of the patients, respectively. Intradiscal vacuum phenomenon was closely associated with severe IVDD (OR: 8.204), Modic changes (OR: 3.547) and SS (OR: 4.231). DISCUSSION Intradiscal vacuum phenomenon was closely associated with severe IVDD, Modic changes, and SS. Further prospective clinical and laboratory studies are necessary to better delineate the pathogenesis of IVP.
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Affiliation(s)
- Murat Şakir Ekşi
- Department of Neurosurgery, School of Medicine, Acıbadem Mehmet Ali Aydınlar University, Istanbul, Turkey
| | - Emel Ece Özcan-Ekşi
- Department of Physical Medicine and Rehabilitation, School of Medicine, Bahçeşehir University, Istanbul, Turkey
| | - Alper Akkaş
- Department of Neurosurgery, School of Medicine, Acıbadem Mehmet Ali Aydınlar University, Istanbul, Turkey
| | - Ömer Orhun
- School of Medicine, Acıbadem Mehmet Ali Aydınlar University, Istanbul, Turkey
| | - Havva Nur Arslan
- School of Nursing, Acıbadem Mehmet Ali Aydınlar University, Istanbul, Turkey
| | - Maftun Zarbizada
- Department of Neurosurgery, School of Medicine, Acıbadem Mehmet Ali Aydınlar University, Istanbul, Turkey
| | | | - M Necmettin Pamir
- Department of Neurosurgery, School of Medicine, Acıbadem Mehmet Ali Aydınlar University, Istanbul, Turkey
| | - Edward C Benzel
- Department of Neurosurgery, Cleveland Clinic Foundation, Cleveland, OH, USA
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Ravishankar P, Barksdale E, Winkelman RD, Kavanaugh MD, Pelle DW, Benzel EC, Mroz TE, Steinmetz MP. Follow-up: the change in postoperative opioid prescribing after lumbar decompression surgery following a state-level prescribing reform. J Neurosurg Spine 2022:1-2. [PMID: 34996041 DOI: 10.3171/2021.10.spine211209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Edward Barksdale
- 1School of Medicine, Case Western Reserve University, Cleveland; and
| | | | | | - Dominic W Pelle
- 2Center for Spine Health, Cleveland Clinic Foundation, Cleveland, Ohio
| | - Edward C Benzel
- 2Center for Spine Health, Cleveland Clinic Foundation, Cleveland, Ohio
| | - Thomas E Mroz
- 2Center for Spine Health, Cleveland Clinic Foundation, Cleveland, Ohio
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14
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Kodsy MM, Freitag HE, Winkelman RD, Rabah NM, Lee BS, Honomichl R, Thompson N, Savage JW, Orr RD, Benzel EC, Kalfas IH. A Retrospective Analysis of the L3-4 Disc and Spinopelvic Parameters on Outcomes in Thoracolumbar Fusion: Was Art Steffee Right? World Neurosurg 2021; 159:e399-e406. [PMID: 34954442 DOI: 10.1016/j.wneu.2021.12.065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 12/08/2021] [Accepted: 12/16/2021] [Indexed: 11/17/2022]
Abstract
OBJECTIVE To determine if the L3-4 disc angle may be a surrogate marker for global lumbar alignment in thoracolumbar fusion surgery. To explore the relationship between radiographic and patient-reported outcomes (PROs) after thoracolumbar fusion surgery. METHODS Retrospective chart review was conducted on patients who had undergone a lumbar fusion involving levels from T9 to pelvis. EuroQol-Five Dimension (EQ-5D) scores and adverse events including adjacent segment disease and degeneration, pseudoarthrosis, proximal junctional kyphosis, stenosis, and reoperation were collected. Pre- and postoperative spinopelvic parameters were measured on weight-bearing radiographs, with the L3-4 disc angle of novel interest. Univariate logistic and linear regression were performed to assess the associations of radiographic parameters with adverse event incidence and improvement in EQ-5D, respectively. RESULTS 182 patients met inclusion criteria. Univariable analysis revealed that increased magnitude of L3-4 disc angle, anterior pelvic tilt, and pelvic incidence measures are associated with increased likelihood of developing postoperative adverse events. Conversely, increased lumbar lordosis demonstrated a decreased incidence of developing a postoperative adverse event. Linear regression showed that radiographic parameters did not significantly correlate with postoperative EQ-5D scores although scores were significantly improved post-fusion in all dimensions except Self-care (P = 0.51). CONCLUSIONS L3-4 disc angle magnitude may serve as a surrogate marker of global lumbar alignment. Degree of spinopelvic alignment did not correlate to improvement in EQ-5D score in the present study, suggesting that quality of life metric change may not be a sensitive or specific marker of post-fusion alignment.
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Affiliation(s)
- Mark M Kodsy
- Center for Spine Health, Neurological Institute, Cleveland Clinic, Cleveland, Ohio, USA; College of Medicine, Northeast Ohio Medical University, Rootstown, Ohio, USA.
| | - Harvey E Freitag
- Center for Spine Health, Neurological Institute, Cleveland Clinic, Cleveland, Ohio, USA; School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
| | - Robert D Winkelman
- Center for Spine Health, Neurological Institute, Cleveland Clinic, Cleveland, Ohio, USA; School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
| | - Nicholas M Rabah
- Center for Spine Health, Neurological Institute, Cleveland Clinic, Cleveland, Ohio, USA; School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
| | - Bryan S Lee
- Center for Spine Health, Neurological Institute, Cleveland Clinic, Cleveland, Ohio, USA; Department of Neurosurgery, Barrow Neurological Institute, Phoenix, Arizona, USA
| | - Ryan Honomichl
- Department of Quantitative Health Sciences, Cleveland Clinic, Cleveland, Ohio, USA
| | - Nicolas Thompson
- Department of Quantitative Health Sciences, Cleveland Clinic, Cleveland, Ohio, USA
| | - Jason W Savage
- Center for Spine Health, Neurological Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - R Douglas Orr
- Center for Spine Health, Neurological Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Edward C Benzel
- Center for Spine Health, Neurological Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Iain H Kalfas
- Center for Spine Health, Neurological Institute, Cleveland Clinic, Cleveland, Ohio, USA
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15
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Kitab SA, Wakefield AE, Benzel EC. Postlaminectomy lumbopelvic sagittal changes in patients with developmental lumbar spinal stenosis grouped into Roussouly lumbopelvic sagittal profiles: 2- to 10-year prospective follow-up. J Neurosurg Spine 2021:1-9. [PMID: 34826807 DOI: 10.3171/2021.8.spine21797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 08/18/2021] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Roussouly lumbopelvic sagittal profiles are associated with distinct pathologies or distinct natural histories and prognoses. The associations between developmental lumbar spinal stenosis (DLSS) and native lumbopelvic sagittal profiles are unknown. Moreover, the relative effects of multilevel decompression on lumbar sagittal alignment, geometrical parameters of the pelvis, and compensatory mechanisms for each of the Roussouly subtypes are unknown. This study aimed to explore the association between DLSS and native lumbar lordosis (LL) subtypes. It also attempts to understand the natural history of postlaminectomy lumbopelvic sagittal changes and compensatory mechanisms for each of the Roussouly subtypes and to define the critical lumbar segment or specific lordosis arc that is recruited after relief of the stenosis effect. METHODS A total of 418 patients with multilevel DLSS were grouped into various Roussouly subtypes, and lumbopelvic sagittal parameters were prospectively compared at follow-up intervals of preoperative to < 2 years, 2 to < 5 years, and 5 to ≥ 10 years after laminectomy. The variables analyzed included LL, upper lordosis arc from L1 to L4, lower lordosis arc from L4 to S1, and segmental lordosis from L1 to S1. Pelvic parameters included pelvic incidence, sacral slope, pelvic tilt, and pelvic incidence minus LL values. RESULTS Of the 329 patients who were followed up throughout this study, 33.7% had Roussouly type 1 native lordosis, whereas the incidence rates of types 2, 3, and 4 were 33.4%, 21.9%, and 10.9%, respectively. LL was not reduced in any of the Roussouly subtypes after multilevel decompressions. Instead, LL increased by 4.5° (SD 11.9°-from 27.3° [SD 11.5°] to 31.8° [SD 9.8°]) in Roussouly type 1 and by 3.1° (SD 11.6°-from 41.3° [SD 9.5°] to 44.4° [SD = 9.7°]) in Roussouly type 2. The other Roussouly types showed no significant changes. Pelvic tilt decreased significantly-by 2.8°, whereas sacral slope increased significantly-by 2.9° in Roussouly type 1 and by 1.7° in Roussouly type 2. The critical lumbar segment that recruits LL differs between Roussouly subtypes. Increments and changes were sustained until the final follow-up. CONCLUSIONS The study findings are important in predicting patient prognosis, LL evolution, and the need for prophylactic or corrective deformity surgery. Multilevel involvement in DLSS and the high prevalence of Roussouly types 1 and 2 suggest that spinal canal dimensions are closely linked to the developmental evolution of LL.
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Affiliation(s)
| | - Andrew E Wakefield
- 2Connecticut Neurosurgery and Spine Associates, Windsor, Connecticut; and
| | - Edward C Benzel
- 3Department of Neurosurgery, Cleveland Clinic, Cleveland, Ohio
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16
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Şakir Ekşi M, Ece Özcan-Ekşi E, Orhun Ö, Akkaş A, Harun Yaşar A, Zarbizada M, Canbolat Ç, Güdük M, Bozkurt B, İmre Usseli M, Erşen-Danyeli A, Hamit Aytar M, Kalelioğlu M, Özgen S, Necmettin Pamir M, Benzel EC. Could gas-filled pseudocyst mimick extruded disc herniation? J Clin Neurosci 2021; 93:147-154. [PMID: 34656239 DOI: 10.1016/j.jocn.2021.09.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 08/27/2021] [Accepted: 09/09/2021] [Indexed: 12/21/2022]
Abstract
There are case reports and small case series in the literature reporting gas-filled pseudocysts (GFP). However, a systematic review presenting overall view of the disease and its management is still lacking. In the present study, we aimed to make a systematic review of GFP cases, and present an exemplary case of ours. Our second aim was to discuss current theories for pathogenesis of GFP. A systematic review of GFP was conducted using Preferred Reporting Items for Systematic Reviews and Meta-Analyses guideline. Two large-scaled data search engines were used. A total of 53 articles were retrieved from the literature and presented with an exemplary case of ours. Mean age of the historical cohort was 59.47 years. There were 66 male (54.1%) and 56 female (45.9%) patients. The most prevalent clinical presentation was radicular sign/symptom in lower limbs with (29.1%) or without low back pain (LBP) (67%). Gas-filled pseudocyst has most commonly been diagnosed at the lower lumbar spine (L4-L5, 45.3%; L5-S1, 37.7%). Surgery was the treatment of choice in most of the patients (80%). In the whole cohort, 79.1% of the patients had complete recovery. Gas-filled pseudocysts are rarely observed in daily practice. They present mostly in men at the age of 60s. Precise differential diagnosis determination using appropriate imaging would help clinicians treat the patients properly. Gas-filled pseudocysts should be treated similarly to other spinal pathologies causing nerve root compression.
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Affiliation(s)
- Murat Şakir Ekşi
- Acıbadem Mehmet Ali Aydınlar University, School of Medicine, Department of Neurosurgery, Istanbul, Turkey.
| | - Emel Ece Özcan-Ekşi
- Bahçeşehir University, School of Medicine, Department of Physical Medicine and Rehabilitation, Istanbul, Turkey
| | - Ömer Orhun
- Acıbadem Mehmet Ali Aydınlar University, School of Medicine, Istanbul, Turkey
| | - Alper Akkaş
- Acıbadem Mehmet Ali Aydınlar University, School of Medicine, Department of Neurosurgery, Istanbul, Turkey
| | - Ahmet Harun Yaşar
- Acıbadem Mehmet Ali Aydınlar University, School of Medicine, Department of Neurosurgery, Istanbul, Turkey
| | - Maftun Zarbizada
- Acıbadem Mehmet Ali Aydınlar University, School of Medicine, Department of Neurosurgery, Istanbul, Turkey
| | - Çağrı Canbolat
- Memorial Hizmet Hospital, Neurosurgery Clinic, Istanbul, Turkey
| | - Mustafa Güdük
- Acıbadem Mehmet Ali Aydınlar University, School of Medicine, Department of Neurosurgery, Istanbul, Turkey
| | - Baran Bozkurt
- Acıbadem Mehmet Ali Aydınlar University, School of Medicine, Department of Neurosurgery, Istanbul, Turkey
| | - Murat İmre Usseli
- Acıbadem Mehmet Ali Aydınlar University, School of Medicine, Department of Neurosurgery, Istanbul, Turkey
| | - Ayça Erşen-Danyeli
- Acıbadem Mehmet Ali Aydınlar University, School of Medicine, Department of Pathology, Istanbul, Turkey
| | - Murat Hamit Aytar
- Acıbadem Healthcare Group, Acıbadem Kozyatağı Hospital, Neurosurgery Clinic, Istanbul, Turkey
| | - Müfit Kalelioğlu
- Acıbadem Healthcare Group, Acıbadem Altunizade Hospital, Neurosurgery Clinic, Istanbul, Turkey
| | - Serdar Özgen
- Acıbadem Healthcare Group, Acıbadem Maslak Hospital, Neurosurgery Clinic, Istanbul, Turkey
| | - M Necmettin Pamir
- Acıbadem Mehmet Ali Aydınlar University, School of Medicine, Department of Neurosurgery, Istanbul, Turkey
| | - Edward C Benzel
- Cleveland Clinic Foundation, Department of Neurosurgery, Cleveland, OH, USA
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17
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Soni P, Loss JG, Gillespie CM, Colbrunn RW, Schlenk R, Steinmetz MP, Recinos PF, Benzel EC, Kshettry VR. Evaluating stability of the craniovertebral junction after unilateral C1 lateral mass resection: implications for the direct lateral approach. J Neurosurg Spine 2021:1-7. [PMID: 34598153 DOI: 10.3171/2021.4.spine21226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Accepted: 04/13/2021] [Indexed: 11/06/2022]
Abstract
OBJECTIVE The direct lateral approach is an alternative to the transoral or endonasal approaches to ventral epidural lesions at the lower craniocervical junction. In this study, the authors performed, to their knowledge, the first in vitro biomechanical evaluation of the craniovertebral junction after sequential unilateral C1 lateral mass resection. The authors hypothesized that partial resection of the lateral mass would not result in a significant increase in range of motion (ROM) and may not require internal stabilization. METHODS The authors performed multidirectional in vitro ROM testing using a robotic spine testing system on 8 fresh cadaveric specimens. We evaluated ROM in 3 primary movements (axial rotation [AR], flexion/extension [FE], and lateral bending [LB]) and 4 coupled movements (AR+E, AR+F, LB + left AR, and LB + right AR). Testing was performed in the intact state, after C1 hemilaminectomy, and after sequential 25%, 50%, 75%, and 100% C1 lateral mass resection. RESULTS There were no significant increases in occipital bone (Oc)-C1, C1-2, or Oc-C2 ROM after C1 hemilaminectomy and 25% lateral mass resection. After 50% resection, Oc-C1 AR ROM increased by 54.4% (p = 0.002), Oc LB ROM increased by 47.8% (p = 0.010), and Oc-C1 AR+E ROM increased by 65.8% (p < 0.001). Oc-C2 FE ROM increased by 7.2% (p = 0.016) after 50% resection; 75% and 100% lateral mass resection resulted in further increases in ROM. CONCLUSIONS In this cadaveric biomechanical study, the authors found that unilateral C1 hemilaminectomy and 25% resection of the C1 lateral mass did not result in significant biomechanical instability at the occipitocervical junction, and 50% resection led to significant increases in Oc-C2 ROM. This is the first biomechanical study of lateral mass resection, and future studies can serve to validate these findings.
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Affiliation(s)
- Pranay Soni
- 1Department of Neurological Surgery, Neurological Institute, Cleveland Clinic
- 2Rose Ella Burkhardt Brain Tumor & Neuro-Oncology Center, Cleveland Clinic; and
| | - Jeremy G Loss
- 3Spine Research Lab, Lutheran Hospital, Cleveland Clinic Center for Spine Health, Cleveland, Ohio
| | - Callan M Gillespie
- 3Spine Research Lab, Lutheran Hospital, Cleveland Clinic Center for Spine Health, Cleveland, Ohio
| | - Robb W Colbrunn
- 3Spine Research Lab, Lutheran Hospital, Cleveland Clinic Center for Spine Health, Cleveland, Ohio
| | - Richard Schlenk
- 1Department of Neurological Surgery, Neurological Institute, Cleveland Clinic
- 3Spine Research Lab, Lutheran Hospital, Cleveland Clinic Center for Spine Health, Cleveland, Ohio
| | - Michael P Steinmetz
- 1Department of Neurological Surgery, Neurological Institute, Cleveland Clinic
- 3Spine Research Lab, Lutheran Hospital, Cleveland Clinic Center for Spine Health, Cleveland, Ohio
| | - Pablo F Recinos
- 1Department of Neurological Surgery, Neurological Institute, Cleveland Clinic
- 2Rose Ella Burkhardt Brain Tumor & Neuro-Oncology Center, Cleveland Clinic; and
| | - Edward C Benzel
- 1Department of Neurological Surgery, Neurological Institute, Cleveland Clinic
- 3Spine Research Lab, Lutheran Hospital, Cleveland Clinic Center for Spine Health, Cleveland, Ohio
| | - Varun R Kshettry
- 1Department of Neurological Surgery, Neurological Institute, Cleveland Clinic
- 2Rose Ella Burkhardt Brain Tumor & Neuro-Oncology Center, Cleveland Clinic; and
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Ghogawala Z, Barker FG, Benzel EC. Effect of Ventral vs Dorsal Spinal Surgery in Patients With Cervical Spondylotic Myelopathy-Reply. JAMA 2021; 326:358-359. [PMID: 34313693 DOI: 10.1001/jama.2021.7268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- Zoher Ghogawala
- Department of Neurosurgery, Lahey Hospital and Medical Center, Burlington, Massachusetts
| | - Fred G Barker
- Massachusetts General Hospital Brain Tumor Center, Boston
| | - Edward C Benzel
- Neurological Surgery, Cleveland Clinic Foundation, Cleveland, Ohio
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Azimi P, Yazdanian T, Benzel EC, Montazeri A. Global Sagittal Balance of Spine in Asymptomatic Controls: A Systematic Review and Meta-Analysis. World Neurosurg 2021; 154:93-108. [PMID: 34314909 DOI: 10.1016/j.wneu.2021.07.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 07/04/2021] [Accepted: 07/08/2021] [Indexed: 11/18/2022]
Abstract
OBJECTIVE To assess the global sagittal balance of spine (GSBS) in asymptomatic controls. METHODS PubMed, Scopus, Cochrane library, and Web of Science searched up to July 2020. Studies were screened for the GSB parameters including T1 pelvic angle (TPA), spinosacral angle (SSA), sagittal vertical axis (SVA), C7/sacrofemoral distance ratio (Barrey index), odontoid hip axis (OD-HA), and Full Balance Index (FBI) as measured in asymptomatic participants. A meta-analysis was performed to synthesize pooled estimates. Heterogeneity and publication bias were assessed. RESULTS Overall, 76 studies were identified including 12,169 participants (54.7% female) with mean age ranges from 12.0 to 72.9 years old. We used the Newcastle-Ottawa Scale (NOS) to evaluate the quality of studies included in this review. Begg's test did not indicate obvious publication bias. The pooled analysis reveals that the mean (standard deviation) normative values were: 1) age ˃18 years, SSA (°), 127.6 (0.89); SVA absolute value (millimeters), 13.1 (1.13); TPA (°), 9.8 (1.13); T1SPI (°), -4.3 (0.57); and Barrey index absolute value, 0.51 (0.3). The mean value of the OD-HA (°) was reported 2.9 (1.6), and the FBI average value was less than 5°. 2) Age ≤18 years, SSA (°), 132.1 (8.3); SVA absolute value (millimeters), 11.9 (2.0); and Barrey index, -0.7 (8.3). A significant difference was observed between the 2 age groups based on SVA and SSA. CONCLUSIONS This paper presents normative data on TPA, SSA, SVA, Barrey index, OD-HA, and FBI as a reference for evaluating/measuring a GSB of spine in asymptomatic controls.
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Affiliation(s)
- Parisa Azimi
- Department of Neurosurgery, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | | | - Edward C Benzel
- Cleveland Clinic Foundation, Department of Neurosurgery, Cleveland, Ohio, USA
| | - Ali Montazeri
- Mental Health Research Group, Health Metrics Research Centre, Iranian Institute for Health Sciences Research, ACECR, Tehran, Iran
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20
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Winkelman RD, Kavanagh MD, Tanenbaum JE, Pelle DW, Benzel EC, Mroz TE, Steinmetz MP. The change in postoperative opioid prescribing after lumbar decompression surgery following state-level opioid prescribing reform. J Neurosurg Spine 2021:1-9. [PMID: 34243163 DOI: 10.3171/2020.11.spine201046] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 11/02/2020] [Indexed: 11/06/2022]
Abstract
OBJECTIVE On August 31, 2017, the state of Ohio implemented legislation limiting the dosage and duration of opioid prescriptions. Despite the widespread adoption of such restrictions, few studies have investigated the effects of these reforms on opioid prescribing and patient outcomes. In the present study, the authors aimed to evaluate the effect of recent state-level reform on opioid prescribing, patient-reported outcomes (PROs), and postoperative emergency department (ED) visits and hospital readmissions after elective lumbar decompression surgery. METHODS This study was a retrospective cohort study of patients who underwent elective lumbar laminectomy for degenerative disease at one of 5 hospitals within a single health system in the years prior to and after the implementation of the statewide reform (September 1, 2016-August 31, 2018). Patients were classified according to the timing of their surgery relative to implementation of the prescribing reform: before reform (September 1, 2016-August 31, 2017) or after reform (September 1, 2017- August 31, 2018). The outcomes of interest included total outpatient opioids prescribed in the 90 days following discharge from surgery as measured in morphine-equivalent doses (MEDs), total number of opioid refill prescriptions written, patient-reported pain at the first postoperative outpatient visit as measured by the Numeric Pain Rating Scale, improvement in patient-reported health-related quality of life as measured by the Patient-Reported Outcomes Measurement Information System-Global Health (PROMIS-GH) questionnaire, and ED visits or hospital readmissions within 90 days of surgery. RESULTS A total of 1031 patients met the inclusion criteria for the study, with 469 and 562 in the before- and after-reform groups, respectively. After-reform patients received 26% (95% CI 19%-32%) fewer MEDs in the 90 days following discharge compared with the before-reform patients. No significant differences were observed in the overall number of opioid prescriptions written, PROs, or postoperative ED or hospital readmissions within 90 days in the year after the implementation of the prescribing reform. CONCLUSIONS Patients undergoing surgery in the year after the implementation of a state-level opioid prescribing reform received significantly fewer MEDs while reporting no change in the total number of opioid prescriptions, PROs, or postoperative ED visits or hospital readmissions. These results demonstrate that state-level reforms placing reasonable limits on opioid prescriptions written for acute pain may decrease patient opioid exposure without negatively impacting patient outcomes after lumbar decompression surgery.
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Affiliation(s)
- Robert D Winkelman
- 1Center for Spine Health, Neurological Institute, and.,2Case Western Reserve University School of Medicine; and.,Departments of3Neurosurgery and
| | - Michael D Kavanagh
- 1Center for Spine Health, Neurological Institute, and.,2Case Western Reserve University School of Medicine; and
| | - Joseph E Tanenbaum
- 1Center for Spine Health, Neurological Institute, and.,2Case Western Reserve University School of Medicine; and.,4Department of Population and Quantitative Health Sciences, Case Western Reserve University School of Medicine, Cleveland, Ohio
| | - Dominic W Pelle
- 1Center for Spine Health, Neurological Institute, and.,5Orthopaedic Surgery, Cleveland Clinic
| | - Edward C Benzel
- 1Center for Spine Health, Neurological Institute, and.,Departments of3Neurosurgery and
| | - Thomas E Mroz
- 1Center for Spine Health, Neurological Institute, and.,5Orthopaedic Surgery, Cleveland Clinic
| | - Michael P Steinmetz
- 1Center for Spine Health, Neurological Institute, and.,Departments of3Neurosurgery and
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21
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Derakhshan P, Azadmanjir Z, Naghdi K, Habibi Arejan R, Safdarian M, Zarei MR, Jazayeri SB, Sharif-Alhoseini M, Arab Kheradmand J, Amirjamshidi A, Ghodsi Z, Faghih Jooybari M, Mohammadzadeh M, Khazaeipour Z, Abdollah Zadegan S, Abedi A, Oreilly G, Noonan V, Benzel EC, Vaccaro AR, Sadeghian F, Rahimi-Movaghar V. The impact of data quality assurance and control solutions on the completeness, accuracy, and consistency of data in a national spinal cord injury registry of Iran (NSCIR-IR). Spinal Cord Ser Cases 2021; 7:51. [PMID: 34112766 DOI: 10.1038/s41394-020-00358-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Revised: 09/29/2020] [Accepted: 10/27/2020] [Indexed: 11/09/2022] Open
Abstract
STUDY DESIGN Descriptive study. OBJECTIVE This study aimed to develop and evaluate a systematic arrangement for improvement and monitoring of data quality of the National Spinal Cord (and Column) Injury Registry of Iran (NSCIR-IR)-a multicenter hospital-based registry. SETTING SCI community in Iran. METHODS Quality assurance and quality control were the primary objectives in improving overall quality of data that were considered in designing a paper-based and computerized case report. To prevent incorrect data entry, we implemented several validation algorithms, including 70 semantic rules, 18 syntactic rules, seven temporal rules, and 13 rules for acceptable value range. Qualified and trained staff members were also employed to review and identify any defect, inaccuracy, or inconsistency in the data to improve data quality. A set of functions were implemented in the software to cross-validate, and feedback on data was provided by reviewers and registrars. RESULTS Socio-demographic data items were 100% complete, except for national ID and education level, which were 97% and 92.3% complete, respectively. Completeness of admission data and emergency medical services data were 100% except for arrival and transfer time (99.4%) and oxygen saturation (48.9%). Evaluation of data received from two centers located in Tehran proved to be 100% accurate following validation by quality reviewers. All data was also found to be 100% consistent. CONCLUSIONS This approach to quality assurance and consistency validation proved to be effective. Our solutions resulted in a significant decrease in the number of missing data.
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Affiliation(s)
- Pegah Derakhshan
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Azadmanjir
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran.,Department of Health Information Management, School of Allied Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran
| | - Khatereh Naghdi
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Roya Habibi Arejan
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahdi Safdarian
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Reza Zarei
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Behzad Jazayeri
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahdi Sharif-Alhoseini
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Abbas Amirjamshidi
- Department of Neurosurgery, Sina Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Ghodsi
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Morteza Faghih Jooybari
- Department of Neurosurgery, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Zahra Khazaeipour
- Brain and Spinal Injuries Research Center (BASIR), Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Shayan Abdollah Zadegan
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Aidin Abedi
- Department of Orthopaedic Surgery, Keck School of Medicine, University of Southern California, Los Angeles, CA, 90033, USA
| | - Gerard Oreilly
- Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC, 3800, Australia
| | - Vanessa Noonan
- Rick Hansen Institute, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada
| | - Edward C Benzel
- Department of Neurosurgery, Cleveland Clinic Foundation, Cleveland, OH, 44195, USA
| | - Alexander R Vaccaro
- Department of Orthopaedic Surgery, The Rothman Institute, Thomas Jefferson University, Philadelphia, PA, 19107, USA
| | - Farideh Sadeghian
- Center for Health Related Social and Behavioral Sciences Research, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Vafa Rahimi-Movaghar
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran. .,Brain and Spinal Injuries Research Center (BASIR), Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran.
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22
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Ghogawala Z, Terrin N, Dunbar MR, Breeze JL, Freund KM, Kanter AS, Mummaneni PV, Bisson EF, Barker FG, Schwartz JS, Harrop JS, Magge SN, Heary RF, Fehlings MG, Albert TJ, Arnold PM, Riew KD, Steinmetz MP, Wang MC, Whitmore RG, Heller JG, Benzel EC. Effect of Ventral vs Dorsal Spinal Surgery on Patient-Reported Physical Functioning in Patients With Cervical Spondylotic Myelopathy: A Randomized Clinical Trial. JAMA 2021; 325:942-951. [PMID: 33687463 PMCID: PMC7944378 DOI: 10.1001/jama.2021.1233] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
IMPORTANCE Cervical spondylotic myelopathy is the most common cause of spinal cord dysfunction worldwide. It remains unknown whether a ventral or dorsal surgical approach provides the best results. OBJECTIVE To determine whether a ventral surgical approach compared with a dorsal surgical approach for treatment of cervical spondylotic myelopathy improves patient-reported physical functioning at 1 year. DESIGN, SETTING, AND PARTICIPANTS Randomized clinical trial of patients aged 45 to 80 years with multilevel cervical spondylotic myelopathy enrolled at 15 large North American hospitals from April 1, 2014, to March 30, 2018; final follow-up was April 15, 2020. INTERVENTIONS Patients were randomized to undergo ventral surgery (n = 63) or dorsal surgery (n = 100). Ventral surgery involved anterior cervical disk removal and instrumented fusion. Dorsal surgery involved laminectomy with instrumented fusion or open-door laminoplasty. Type of dorsal surgery (fusion or laminoplasty) was at surgeon's discretion. MAIN OUTCOMES AND MEASURES The primary outcome was 1-year change in the Short Form 36 physical component summary (SF-36 PCS) score (range, 0 [worst] to 100 [best]; minimum clinically important difference = 5). Secondary outcomes included 1-year change in modified Japanese Orthopaedic Association scale score, complications, work status, sagittal vertical axis, health resource utilization, and 1- and 2-year changes in the Neck Disability Index and the EuroQol 5 Dimensions score. RESULTS Among 163 patients who were randomized (mean age, 62 years; 80 [49%] women), 155 (95%) completed the trial at 1 year (80% at 2 years). All patients had surgery, but 5 patients did not receive their allocated surgery (ventral: n = 1; dorsal: n = 4). One-year SF-36 PCS mean improvement was not significantly different between ventral surgery (5.9 points) and dorsal surgery (6.2 points) (estimated mean difference, 0.3; 95% CI, -2.6 to 3.1; P = .86). Of 7 prespecified secondary outcomes, 6 showed no significant difference. Rates of complications in the ventral and dorsal surgery groups, respectively, were 48% vs 24% (difference, 24%; 95% CI, 8.7%-38.5%; P = .002) and included dysphagia (41% vs 0%), new neurological deficit (2% vs 9%), reoperations (6% vs 4%), and readmissions within 30 days (0% vs 7%). CONCLUSIONS AND RELEVANCE Among patients with cervical spondylotic myelopathy undergoing cervical spinal surgery, a ventral surgical approach did not significantly improve patient-reported physical functioning at 1 year compared with outcomes after a dorsal surgical approach. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT02076113.
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Affiliation(s)
- Zoher Ghogawala
- Department of Neurosurgery, Lahey Hospital and Medical Center, Burlington, Massachusetts
| | - Norma Terrin
- Tufts Clinical and Translational Science Institute, Tufts University, and Institute for Clinical Research and Health Policy Studies, Tufts Medical Center, Boston, Massachusetts
| | - Melissa R. Dunbar
- Department of Neurosurgery, Lahey Hospital and Medical Center, Burlington, Massachusetts
| | - Janis L. Breeze
- Tufts Clinical and Translational Science Institute, Tufts University, and Institute for Clinical Research and Health Policy Studies, Tufts Medical Center, Boston, Massachusetts
| | - Karen M. Freund
- Tufts Clinical and Translational Science Institute, Tufts University, and Institute for Clinical Research and Health Policy Studies, Tufts Medical Center, Boston, Massachusetts
| | - Adam S. Kanter
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburg, Pennsylvania
| | | | - Erica F. Bisson
- Department of Neurosurgery Clinical Neurosciences Center, University of Utah School of Medicine, Salt Lake City
| | - Fred G. Barker
- Massachusetts General Hospital Brain Tumor Center, Boston
| | - J. Sanford Schwartz
- University of Pennsylvania Perelman School of Medicine, Philadelphia
- University of Pennsylvania Wharton School, Philadelphia
| | | | - Subu N. Magge
- Department of Neurosurgery, Lahey Hospital and Medical Center, Burlington, Massachusetts
| | - Robert F. Heary
- Department of Neurological Surgery, Hackensack Meridian School of Medicine, Nutley, New Jersey
| | - Michael G. Fehlings
- Division of Neurosurgery, Department of Surgery, University of Toronto, Toronto, Ontario, Canada
- Division of Neurosurgery, Krembil Neuroscience Centre, University Health Network, Toronto, Ontario, Canada
| | - Todd J. Albert
- Department of Orthopedic Surgery, Hospital for Special Surgery, New York, New York
- Department of Neurosurgery, Weill Cornell Medicine, New York, New York
| | - Paul M. Arnold
- Carle Neuroscience Institute, Carle Foundation Hospital, Urbana, Illinois
| | - K. Daniel Riew
- Columbia University Irving Medical Center, New York, New York
| | | | - Marjorie C. Wang
- Department of Neurosurgery, Medical College of Wisconsin, Milwaukee
| | - Robert G. Whitmore
- Department of Neurosurgery, Lahey Hospital and Medical Center, Burlington, Massachusetts
| | - John G. Heller
- Emory Orthopaedics & Spine Center, Emory University School of Medicine, Atlanta, Georgia
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23
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Pennington Z, Bomberger TT, Lubelski D, Benzel EC, Steinmetz MP, Mroz TE. Associations Between Preoperative Hyponatremia and 30-Day Perioperative Complications in Lumbar Interbody Spinal Fusion. Clin Spine Surg 2021; 34:E7-E12. [PMID: 32467442 DOI: 10.1097/bsd.0000000000001016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Accepted: 04/23/2020] [Indexed: 11/25/2022]
Abstract
STUDY DESIGN Retrospective population database study. OBJECTIVE To investigate the relationship of preoperative hyponatremia to postoperative morbidity and mortality in lumbar interbody fusion patients. SUMMARY OF BACKGROUND DATA Optimization of preoperative patient selection and perioperative management can improve patient outcomes in spinal surgery. Hyponatremia, incidentally identified in 1.7% of the US population, has previously been tied to poorer postoperative outcomes in both the general surgery and orthopedic surgery populations. MATERIALS AND METHODS Using the National Surgical Quality Improvement Program database, the authors identified all lumbar interbody fusion patients treated between 2012 and 2014. Patients were classified as hyponatremic (Na<135 mEq/L) or as having normal sodium levels (135-145 mEq/L) preoperatively. The primary outcome was major morbidity and secondary endpoints were prolonged hospitalization, 30-day readmission, and reoperation. Multivariable linear regression was used to find independent predictors of these outcomes. RESULTS Of 10,654 patients, 45.6% were male individuals, 5.5% were hyponatremic, and 4.2% experienced a major postoperative complication. On multivariable analysis, preoperative hyponatremia was independently associated with major morbidity (odds ratio, 1.22; 95% confidence interval, 1.03-1.44; P<0.05) and prolonged hospitalization (odds ratio, 1.14; 95% confidence interval, 1.02-1.27). CONCLUSIONS Here the authors provide the first evidence suggesting preoperative hyponatremia is an independent predictor of major morbidity after lumbar interbody fusion. Hyponatremia may represent a modifiable risk factor for improved patient care and preoperative risk counseling.
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Affiliation(s)
- Zach Pennington
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD
| | | | - Daniel Lubelski
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Edward C Benzel
- Cleveland Clinic Center for Spine Health
- Department of Neurological Surgery, Cleveland Clinic
- Cleveland Clinic Lerner College of Medicine, Cleveland, OH
| | - Michael P Steinmetz
- Cleveland Clinic Center for Spine Health
- Department of Neurological Surgery, Cleveland Clinic
- Cleveland Clinic Lerner College of Medicine, Cleveland, OH
| | - Thomas E Mroz
- Cleveland Clinic Center for Spine Health
- Cleveland Clinic Lerner College of Medicine, Cleveland, OH
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24
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Lubelski D, Feghali J, Nowacki AS, Alentado VJ, Planchard R, Abdullah KG, Sciubba DM, Steinmetz MP, Benzel EC, Mroz TE. Patient-specific prediction model for clinical and quality-of-life outcomes after lumbar spine surgery. J Neurosurg Spine 2021; 34:580-588. [PMID: 33528964 DOI: 10.3171/2020.8.spine20577] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 08/11/2020] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Patient demographics, comorbidities, and baseline quality of life (QOL) are major contributors to postoperative outcomes. The frequency and cost of lumbar spine surgery has been increasing, with controversy revolving around optimal management strategies and outcome predictors. The goal of this study was to generate predictive nomograms and a clinical calculator for postoperative clinical and QOL outcomes following lumbar spine surgery for degenerative disease. METHODS Patients undergoing lumbar spine surgery for degenerative disease at a single tertiary care institution between June 2009 and December 2012 were retrospectively reviewed. Nomograms and an online calculator were modeled based on patient demographics, comorbidities, presenting symptoms and duration of symptoms, indication for surgery, type and levels of surgery, and baseline preoperative QOL scores. Outcomes included postoperative emergency department (ED) visit or readmission within 30 days, reoperation within 90 days, and 1-year changes in the EuroQOL-5D (EQ-5D) score. Bootstrapping was used for internal validation. RESULTS A total of 2996 lumbar surgeries were identified. Thirty-day ED visits were seen in 7%, 30-day readmission in 12%, 90-day reoperation in 3%, and improvement in EQ-5D at 1 year that exceeded the minimum clinically important difference in 56%. Concordance indices for the models predicting ED visits, readmission, reoperation, and dichotomous 1-year improvement in EQ-5D were 0.63, 0.66, 0.73, and 0.84, respectively. Important predictors of clinical outcomes included age, body mass index, Charlson Comorbidity Index, indication for surgery, preoperative duration of symptoms, and the type (and number of levels) of surgery. A web-based calculator was created, which can be accessed here: https://riskcalc.org/PatientsEligibleForLumbarSpineSurgery/. CONCLUSIONS The prediction tools derived from this study constitute important adjuncts to clinical decision-making that can offer patients undergoing lumbar spine surgery realistic and personalized expectations of postoperative outcome. They may also aid physicians in surgical planning, referrals, and counseling to ultimately lead to improved patient experience and outcomes.
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Affiliation(s)
- Daniel Lubelski
- 1Department of Neurosurgery, Johns Hopkins Hospital, Baltimore, Maryland
| | - James Feghali
- 1Department of Neurosurgery, Johns Hopkins Hospital, Baltimore, Maryland
| | - Amy S Nowacki
- 2Cleveland Clinic Lerner College of Medicine, Cleveland.,3Department of Quantitative Health Science, Cleveland Clinic, Cleveland, Ohio
| | - Vincent J Alentado
- 4Department of Neurosurgery, Indiana University School of Medicine, Indianapolis, Indiana
| | - Ryan Planchard
- 1Department of Neurosurgery, Johns Hopkins Hospital, Baltimore, Maryland
| | - Kalil G Abdullah
- 5Department of Neurological Surgery, University of Texas Southwestern Medical Center, Dallas, Texas; and
| | - Daniel M Sciubba
- 1Department of Neurosurgery, Johns Hopkins Hospital, Baltimore, Maryland
| | - Michael P Steinmetz
- 2Cleveland Clinic Lerner College of Medicine, Cleveland.,6Department of Neurosurgery and the Cleveland Clinic Center for Spine Health, Cleveland Clinic, Cleveland, Ohio
| | - Edward C Benzel
- 2Cleveland Clinic Lerner College of Medicine, Cleveland.,6Department of Neurosurgery and the Cleveland Clinic Center for Spine Health, Cleveland Clinic, Cleveland, Ohio
| | - Thomas E Mroz
- 2Cleveland Clinic Lerner College of Medicine, Cleveland.,6Department of Neurosurgery and the Cleveland Clinic Center for Spine Health, Cleveland Clinic, Cleveland, Ohio
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25
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Chakravarthy VB, Grabowski MM, Benzel EC, Benzil DL. Neuro-Oncology Practice resources for optimizing care and practice in spinal oncology. Neurooncol Pract 2020; 7:i62-i69. [PMID: 33299575 DOI: 10.1093/nop/npaa050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
As the diagnosis and treatment of systemic cancers continues to improve, increased patient survival has resulted in a rise in the number of patients who develop spinal metastases (SM). Within many areas of oncology, utilization of multidisciplinary care models in the management and decision making of SM patients has proven effective for optimizing care and improving patient safety. Three main goals of an effective clinical pathway include improving outcomes and quality, improving the patient experience, and lowering cost. This paper outlines the strategies employed to optimally establish such a collaborative program for the management of patients with SM, as well as direct providers in and out of the field, patients and caregivers, and practice managers to the appropriate resources.
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Affiliation(s)
- Vikram B Chakravarthy
- Department of Neurosurgery, Cleveland Clinic of Case Western Reserve School of Medicine, Cleveland, Ohio
| | - Matthew M Grabowski
- Department of Neurosurgery, Cleveland Clinic of Case Western Reserve School of Medicine, Cleveland, Ohio
| | - Edward C Benzel
- Department of Neurosurgery, Cleveland Clinic of Case Western Reserve School of Medicine, Cleveland, Ohio
| | - Deborah L Benzil
- Department of Neurosurgery, Cleveland Clinic of Case Western Reserve School of Medicine, Cleveland, Ohio
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26
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Lee JE, Mohanty A, Albuquerque FC, Couldwell WT, Levy EI, Benzel EC, Wakhloo AK, Hirsch JA, Fiorella D, Fargen KM, Burkhardt JK, Srinivasan VM, Johnson J, Mokin M, Kan P. Trends in academic productivity in the COVID-19 era: analysis of neurosurgical, stroke neurology, and neurointerventional literature. J Neurointerv Surg 2020; 12:1049-1052. [PMID: 32998982 PMCID: PMC7528313 DOI: 10.1136/neurintsurg-2020-016710] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 09/05/2020] [Accepted: 09/15/2020] [Indexed: 12/22/2022]
Abstract
BACKGROUND Academic physicians aim to provide clinical and surgical care to their patients while actively contributing to a growing body of scientific literature. The coronavirus disease 2019 (COVID-19) pandemic has resulted in procedural-based specialties across the United States witnessing a sharp decline in their clinical volume and surgical cases. OBJECTIVE To assess the impact of COVID-19 on neurosurgical, stroke neurology, and neurointerventional academic productivity. METHODS The study compared the neurosurgical, stroke neurology, and neurointerventional academic output during the pandemic lockdown with the same time period in previous years. Editors from a sample of neurosurgical, stroke neurology, and neurointerventional journals provided the total number of original manuscript submissions, broken down by months, from the year 2016 to 2020. Manuscript submission was used as a surrogate metric for academic productivity. RESULTS 8 journals were represented. The aggregated data from all eight journals as a whole showed that a combined average increase of 42.3% was observed on original submissions for 2020. As the average yearly percent increase using the 2016-2019 data for each journal exhibited a combined average increase of 11.2%, the rise in the yearly increase for 2020 in comparison was nearly fourfold. For the same journals in the same time period, the average percent of COVID-19 related publications from January to June of 2020 was 6.87%. CONCLUSION There was a momentous increase in the number of original submissions for the year 2020, and its effects were uniformly experienced across all of our represented journals.
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Affiliation(s)
- Jae Eun Lee
- Department of Neurosurgery, Baylor College of Medicine, Houston, Texas, USA
| | - Alina Mohanty
- Department of Neurosurgery, Baylor College of Medicine, Houston, Texas, USA
| | - Felipe C Albuquerque
- Department of Neurosurgery, Barrow Neurological Institute, Phoenix, Arizona, USA
| | | | - Elad I Levy
- Neurosurgery, Jacobs School of Medicine University at Buffalo, Buffalo, New York, USA
- Neurosurgery, Gates Vascular Institute at Kaleida Health, Buffalo, New York, USA
| | - Edward C Benzel
- Department of Neurosurgery, Cleveland Clinic, Cleveland, Ohio, USA
| | - Ajay K Wakhloo
- Neurointerventional Radiology, Lahey Hospital and Medical Center, Burlington, Massachusetts, USA
| | - Joshua A Hirsch
- NeuroEndovascular Program, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - David Fiorella
- Department of Neurosurgery, Stony Brook University, Stony Brook, New York, USA
- Department of Radiology, Stony Brook University, Stony Brook, New York, USA
| | - Kyle M Fargen
- Neurological Surgery and Radiology, Wake Forest University, Winston-Salem, North Carolina, USA
| | - Jan-Karl Burkhardt
- Department of Neurosurgery, Baylor College of Medicine, Houston, Texas, USA
- Department of Neurosurgery, Texas Children's Hospital, Houston, Texas, USA
| | | | - Jeremiah Johnson
- Department of Neurosurgery, Baylor College of Medicine, Houston, Texas, USA
| | - Maxim Mokin
- Department of Neurosurgery, University of South Florida, Tampa, Florida, USA
| | - Peter Kan
- Department of Neurosurgery, University of Texas Medical Branch, Galveston, Texas, USA
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27
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Bartsch AJ, Hedin D, Alberts J, Benzel EC, Cruickshank J, Gray RS, Cameron K, Houston MN, Rooks T, McGinty G, Kozlowski E, Rowson S, Maroon JC, Miele VJ, Ashton JC, Siegmund GP, Shah A, McCrea M, Stemper B. High Energy Side and Rear American Football Head Impacts Cause Obvious Performance Decrement on Video. Ann Biomed Eng 2020; 48:2667-2677. [PMID: 33111969 PMCID: PMC7674260 DOI: 10.1007/s10439-020-02640-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 09/24/2020] [Indexed: 12/23/2022]
Abstract
The objective of this study was to compare head impact data acquired with an impact monitoring mouthguard (IMM) to the video-observed behavior of athletes' post-collision relative to their pre-collision behaviors. A total of n = 83 college and high school American football players wore the IMM and were video-recorded over 260 athlete-exposures. Ex-athletes and clinicians reviewed the video in a two-step process and categorized abnormal post-collision behaviors according to previously published Obvious Performance Decrement (OPD) definitions. Engineers qualitatively reviewed datasets to check head impact and non-head impact signal frequency and magnitude. The ex-athlete reviewers identified 2305 head impacts and 16 potential OPD impacts, 13 of which were separately categorized as Likely-OPD impacts by the clinical reviewers. All 13 Likely-OPD impacts were in the top 1% of impacts measured by the IMM (ranges 40-100 g, 3.3-7.0 m/s and 35-118 J) and 12 of the 13 impacts (92%) were to the side or rear of the head. These findings require confirmation in a larger data set before proposing any type of OPD impact magnitude or direction threshold exists. However, OPD cases in this study compare favorably with previously published impact monitoring studies in high school and college American football players that looked for OPD signs, impact magnitude and direction. Our OPD findings also compare well with NFL reconstruction studies for ranges of concussion and sub-concussive impact magnitudes in side/rear collisions, as well as prior theory, analytical models and empirical research that suggest a directional sensitivity to brain injury exists for single high-energy impacts.
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Affiliation(s)
| | - Daniel Hedin
- Advanced Medical Electronics, Maple Grove, MN, USA
| | | | | | | | | | | | | | - Tyler Rooks
- United States Army Aeromedical Research Laboratory, Fort Rucker, AL, USA
| | - Gerald McGinty
- United States Air Force Academy, Air Force Academy, CO, USA
| | | | | | - Joseph C Maroon
- University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Vincent J Miele
- University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | | | - Gunter P Siegmund
- School of Kinesiology, University of British Columbia, Vancouver, BC, USA
| | - Alok Shah
- Medical College of Wisconsin, Wauwatosa, WI, USA
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28
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Sciubba DM, Ehresman J, Pennington Z, Lubelski D, Feghali J, Bydon A, Chou D, Elder BD, Elsamadicy AA, Goodwin CR, Goodwin ML, Harrop J, Klineberg EO, Laufer I, Lo SFL, Neuman BJ, Passias PG, Protopsaltis T, Shin JH, Theodore N, Witham TF, Benzel EC. Scoring System to Triage Patients for Spine Surgery in the Setting of Limited Resources: Application to the Coronavirus Disease 2019 (COVID-19) Pandemic and Beyond. World Neurosurg 2020; 140:e373-e380. [PMID: 32479913 PMCID: PMC7256646 DOI: 10.1016/j.wneu.2020.05.233] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 05/18/2020] [Accepted: 05/25/2020] [Indexed: 01/08/2023]
Abstract
BACKGROUND As of May 4, 2020, the coronavirus disease 2019 (COVID-19) pandemic has affected >3.5 million people and touched every inhabited continent. Accordingly, it has stressed health systems worldwide, leading to the cancellation of elective surgical cases and discussions regarding health care resource rationing. It is expected that rationing of surgical resources will continue even after the pandemic peak and may recur with future pandemics, creating a need for a means of triaging patients for emergent and elective spine surgery. METHODS Using a modified Delphi technique, a cohort of 16 fellowship-trained spine surgeons from 10 academic medical centers constructed a scoring system for the triage and prioritization of emergent and elective spine surgeries. Three separate rounds of videoconferencing and written correspondence were used to reach a final scoring system. Sixteen test cases were used to optimize the scoring system so that it could categorize cases as requiring emergent, urgent, high-priority elective, or low-priority elective scheduling. RESULTS The devised scoring system included 8 independent components: neurologic status, underlying spine stability, presentation of a high-risk postoperative complication, patient medical comorbidities, expected hospital course, expected discharge disposition, facility resource limitations, and local disease burden. The resultant calculator was deployed as a freely available Web-based calculator (https://jhuspine3.shinyapps.io/SpineUrgencyCalculator/). CONCLUSIONS We present the first quantitative urgency scoring system for the triage and prioritizing of spine surgery cases in resource-limited settings. We believe that our scoring system, although not all encompassing, has potential value as a guide for triaging spine surgical cases during the COVID pandemic and post-COVID period.
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Affiliation(s)
- Daniel M Sciubba
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.
| | - Jeff Ehresman
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Zach Pennington
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Daniel Lubelski
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - James Feghali
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Ali Bydon
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Dean Chou
- Department of Neurological Surgery, University of California San Francisco School of Medicine, San Francisco, California, USA
| | - Benjamin D Elder
- Department of Neurosurgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Aladine A Elsamadicy
- Department of Neurosurgery, Yale University School of Medicine, New Haven, Connecticut, USA
| | - C Rory Goodwin
- Department of Neurosurgery, Duke University School of Medicine, Durham, North Carolina, USA
| | - Matthew L Goodwin
- Department of Orthopedic Surgery, Washington University School of Medicine, St. Louis, Missouri, USA
| | - James Harrop
- Department of Neurosurgery, Thomas Jefferson University Hospitals, Philadelphia, Philadelphia, USA
| | - Eric O Klineberg
- Department of Orthopedic Surgery, University of California Davis School of Medicine, Davis, California, USA
| | - Ilya Laufer
- Department of Neurosurgery, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Sheng-Fu L Lo
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Brian J Neuman
- Department of Orthopedic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Peter G Passias
- Department of Orthopedic Surgery, New York University Grossman School of Medicine, New York University LangoneHealth, New York, New York, USA
| | - Themistocles Protopsaltis
- Department of Orthopedic Surgery, New York University Grossman School of Medicine, New York University LangoneHealth, New York, New York, USA
| | - John H Shin
- Department of Neurosurgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Nicholas Theodore
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Timothy F Witham
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Edward C Benzel
- Department of Neurological Surgery, Cleveland Clinic, Cleveland, Ohio, USA; Cleveland Clinic Center for Spine Health, Cleveland Clinic, Cleveland, Ohio, USA
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Azimi P, Yazdanian T, Benzel EC, Aghaei HN, Azhari S, Sadeghi S, Montazeri A. Accuracy and safety of C2 pedicle or pars screw placement: a systematic review and meta-analysis. J Orthop Surg Res 2020; 15:272. [PMID: 32690035 PMCID: PMC7372824 DOI: 10.1186/s13018-020-01798-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 07/14/2020] [Indexed: 11/25/2022] Open
Abstract
Study design Systematic review and meta-analysis. Aim The purpose of this study was to compare the safety and accuracy of the C2 pedicle versus C2 pars screws placement and free-hand technique versus navigation for upper cervical fusion patients. Methods Databases searched included PubMed, Scopus, Web of Science, and Cochrane Library to identify all papers published up to April 2020 that have evaluated C2 pedicle/pars screws placement accuracy. Two authors individually screened the literature according to the inclusion and exclusion criteria. The accuracy rates associated with C2 pedicle/pars were extracted. The pooled accuracy rate estimated was performed by the CMA software. A funnel plot based on accuracy rate estimate was used to evaluate publication bias. Results From 1123 potentially relevant studies, 142 full-text publications were screened. We analyzed data from 79 studies involving 4431 patients with 6026 C2 pedicle or pars screw placement. We used the Newcastle-Ottawa Scale (NOS) to evaluate the quality of studies included in this review. Overall, funnel plot and Begg’s test did not indicate obvious publication bias. The pooled analysis reveals that the accuracy rates were 93.8% for C2 pedicle screw free-hand, 93.7% for pars screw free-hand, 92.2% for navigated C2 pedicle screw, and 86.2% for navigated C2 pars screw (all, P value < 0.001). No statistically significant differences were observed between the accuracy of placement C2 pedicle versus C2 pars screws with the free-hand technique and the free-hand C2 pedicle group versus the navigated C2 pedicle group (all, P value > 0.05). Conclusion Overall, there was no difference in the safety and accuracy between the free-hand and navigated techniques. Further well-conducted studies with detailed stratification are needed to complement our findings.
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Affiliation(s)
- Parisa Azimi
- Department of Neurosurgery, Shahid Beheshti University of Medical Sciences, Arabi Ave, Daneshjoo Blvd, Velenjak, Tehran, 19839-63113, Iran.
| | | | - Edward C Benzel
- Department of Neurosurgery, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - Hossein Nayeb Aghaei
- Department of Neurosurgery, Shahid Beheshti University of Medical Sciences, Arabi Ave, Daneshjoo Blvd, Velenjak, Tehran, 19839-63113, Iran
| | - Shirzad Azhari
- Department of Neurosurgery, Shahid Beheshti University of Medical Sciences, Arabi Ave, Daneshjoo Blvd, Velenjak, Tehran, 19839-63113, Iran
| | - Sohrab Sadeghi
- Department of Neurosurgery, Shahid Beheshti University of Medical Sciences, Arabi Ave, Daneshjoo Blvd, Velenjak, Tehran, 19839-63113, Iran
| | - Ali Montazeri
- Population Health Research Group, Mental Health Research Group, Health Metrics Research Centre, Iranian Institute for Health Sciences Research, ACECR, Tehran, Iran
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Affiliation(s)
- William J Kemp
- Department of Neurosurgery, Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - Pablo F Recinos
- Department of Neurosurgery, Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - Edward C Benzel
- Department of Neurosurgery, Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - Richard P Schlenk
- Department of Neurosurgery, Cleveland Clinic Foundation, Cleveland, Ohio, USA
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Pennington Z, Bomberger TT, Lubelski D, Benzel EC, Steinmetz MP, Mroz TE. Preoperative Hyponatremia and Perioperative Complications in Cervical Spinal Fusion. World Neurosurg 2020; 141:e864-e872. [PMID: 32553754 DOI: 10.1016/j.wneu.2020.06.068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 06/01/2020] [Accepted: 06/08/2020] [Indexed: 10/24/2022]
Abstract
OBJECTIVE Preoperative patient optimization is increasingly recognized as key to good surgical outcomes. Preoperative hyponatremia is a modifiable risk factor linked to poorer postoperative outcomes in other surgical fields. We provide the first investigation of the association of preoperative hyponatremia with morbidity and mortality in patients undergoing cervical spine surgery. METHODS We queried the National Surgical Quality Improvement Program registry for patients who underwent cervical spine fusion. Preoperative serum sodium levels were classified as normal (135-145 mEq/L) or hyponatremic (<135 mEq/L); hypernatremic patients were excluded from the analysis. Multivariable logistic analyses using a multiple imputations methodology were performed to determine significant predictors of major morbidity and mortality (MMM). RESULTS We included 20,817 patients, of whom 5.2% were hyponatremic at presentation. Preoperative hyponatremia was a significant predictor of MMM (odds ratio [OR], 1.23; 95% confidence interval [CI], 1.09-1.39), mortality (OR, 1.36; 95% CI, 1.03-1.77), major morbidity (OR, 1.24; 95% CI, 1.10-1.40), and odds of prolonged hospitalization (OR, 1.13; 95% CI, 1.04-1.23). Other significant predictors of MMM included age, undergoing an emergent versus nonemergent operation, having chronic obstructive pulmonary disease, having disseminated malignancy, being functionally dependent, presenting with sepsis or septic shock, and having an American Society of Anesthesiologists status of 3, 4, or 5. Similar results were seen in analyses using only complete cases and in sensitivity analyses. CONCLUSIONS Using the National Surgical Quality Improvement Program database, hyponatremia is observed in approximately 1 in every 20 patients undergoing cervical spine fusion. More importantly, it is a predictor of mortality, major morbidity, and prolonged hospitalization. From a systems-level perspective, preoperative hyponatremia may therefore represent a point of intervention for preoperative patient optimization.
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Affiliation(s)
- Zach Pennington
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Thomas T Bomberger
- Department of Diagnostic Radiology, Case Western Reserve University, Cleveland, Ohio, USA
| | - Daniel Lubelski
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Edward C Benzel
- Cleveland Clinic Center for Spine Health, Cleveland Clinic, Cleveland, Ohio, USA; Department of Neurological Surgery, Cleveland Clinic, Cleveland, Ohio, USA; The Cleveland Clinic, Lerner College of Medicine, Cleveland, Ohio, USA
| | - Michael P Steinmetz
- Cleveland Clinic Center for Spine Health, Cleveland Clinic, Cleveland, Ohio, USA; Department of Neurological Surgery, Cleveland Clinic, Cleveland, Ohio, USA; The Cleveland Clinic, Lerner College of Medicine, Cleveland, Ohio, USA
| | - Thomas E Mroz
- Cleveland Clinic Center for Spine Health, Cleveland Clinic, Cleveland, Ohio, USA; The Cleveland Clinic, Lerner College of Medicine, Cleveland, Ohio, USA; Department of Orthopaedic Surgery, Cleveland Clinic Orthopaedic and Rheumatologic Institute, Cleveland, Ohio, USA.
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Affiliation(s)
- Ghaith Habboub
- 1Department of Neurosurgery, Cleveland Clinic, Cleveland; and
| | | | - Michael L Kelly
- 2Department of Neurosurgery, The Metrohealth System, Cleveland, Ohio
| | - Edward C Benzel
- 1Department of Neurosurgery, Cleveland Clinic, Cleveland; and
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Kotecha R, Tom MC, Naik M, Angelov L, Benzel EC, Reddy CA, Prayson RA, Kalfas I, Schlenk R, Krishnaney A, Steinmetz MP, Bingaman W, Suh JH, Chao ST. Analyzing the role of adjuvant or salvage radiotherapy for spinal myxopapillary ependymomas. J Neurosurg Spine 2020; 33:1-6. [PMID: 32357340 DOI: 10.3171/2020.2.spine191534] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Accepted: 02/20/2020] [Indexed: 11/06/2022]
Abstract
OBJECTIVE The authors sought to describe the long-term recurrence patterns, prognostic factors, and effect of adjuvant or salvage radiotherapy (RT) on treatment outcomes for patients with spinal myxopapillary ependymoma (MPE). METHODS The authors reviewed a tertiary institution IRB-approved database and collected data regarding patient, tumor, and treatment characteristics for all patients treated consecutively from 1974 to 2015 for histologically confirmed spinal MPE. Key outcomes included relapse-free survival (RFS), postrecurrence RFS, failure patterns, and influence of timing of RT on recurrence patterns. Cox proportional hazards regression and Kaplan-Meier analyses were utilized. RESULTS Of the 59 patients included in the study, the median age at initial surgery was 34 years (range 12-74 years), 30 patients (51%) were female, and the most common presenting symptom was pain (n = 52, 88%). Extent of resection at diagnosis was gross-total resection (GTR) in 39 patients (66%), subtotal resection (STR) in 15 (25%), and unknown in 5 patients (9%). After surgery, 10 patients (17%) underwent adjuvant RT (5/39 GTR [13%] and 5/15 STR [33%] patients). Median follow-up was 6.2 years (range 0.1-35.3 years). Overall, 20 patients (34%) experienced recurrence (local, n = 15; distant, n = 5). The median RFS was 11.2 years (95% CI 77 to not reached), and the 5- and 10-year RFS rates were 72.3% (95% CI 59.4-86.3) and 54.0% (95% CI, 36.4-71.6), respectively.STR was associated with a higher risk of recurrence (HR 6.45, 95% CI 2.15-19.23, p < 0.001) than GTR, and the median RFS after GTR was 17.2 years versus 5.5 years after STR. Adjuvant RT was not associated with improved RFS, regardless of whether it was delivered after GTR or STR. Of the 20 patients with recurrence, 12 (60%) underwent salvage treatment with surgery alone (GTR, n = 6), 4 (20%) with RT alone, and 4 (20%) with surgery and RT. Compared to salvage surgery alone, salvage RT, with or without surgery, was associated with a significantly longer postrecurrence RFS (median 9.5 years vs 1.6 years; log-rank, p = 0.006). CONCLUSIONS At initial diagnosis of spinal MPE, GTR is key to long-term RFS, with no benefit to immediate adjuvant RT observed in this series. RT at the time of recurrence, however, is associated with a significantly longer time to second disease recurrence. Surveillance imaging of the entire neuraxis remains crucial, as distant failure is not uncommon in this patient population.
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Affiliation(s)
- Rupesh Kotecha
- 1Department of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami
- 2Herbert Wertheim College of Medicine, Florida International University, Miami, Florida
| | - Martin C Tom
- 3Department of Radiation Oncology, Taussig Cancer Institute, Cleveland Clinic; and Departments of
| | - Mihir Naik
- 3Department of Radiation Oncology, Taussig Cancer Institute, Cleveland Clinic; and Departments of
| | | | | | - Chandana A Reddy
- 3Department of Radiation Oncology, Taussig Cancer Institute, Cleveland Clinic; and Departments of
| | | | | | | | | | | | | | - John H Suh
- 3Department of Radiation Oncology, Taussig Cancer Institute, Cleveland Clinic; and Departments of
| | - Samuel T Chao
- 3Department of Radiation Oncology, Taussig Cancer Institute, Cleveland Clinic; and Departments of
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Azimi P, Yazdanian T, Benzel EC, Aghaei HN, Azhari S, Sadeghi S, Montazeri A. A Review on the Use of Artificial Intelligence in Spinal Diseases. Asian Spine J 2020; 14:543-571. [PMID: 32326672 PMCID: PMC7435304 DOI: 10.31616/asj.2020.0147] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 04/12/2020] [Indexed: 12/13/2022] Open
Abstract
Artificial neural networks (ANNs) have been used in a wide variety of real-world applications and it emerges as a promising field across various branches of medicine. This review aims to identify the role of ANNs in spinal diseases. Literature were searched from electronic databases of Scopus and Medline from 1993 to 2020 with English publications reported on the application of ANNs in spinal diseases. The search strategy was set as the combinations of the following keywords: “artificial neural networks,” “spine,” “back pain,” “prognosis,” “grading,” “classification,” “prediction,” “segmentation,” “biomechanics,” “deep learning,” and “imaging.” The main findings of the included studies were summarized, with an emphasis on the recent advances in spinal diseases and its application in the diagnostic and prognostic procedures. According to the search strategy, a set of 3,653 articles were retrieved from Medline and Scopus databases. After careful evaluation of the abstracts, the full texts of 89 eligible papers were further examined, of which 79 articles satisfied the inclusion criteria of this review. Our review indicates several applications of ANNs in the management of spinal diseases including (1) diagnosis and assessment of spinal disease progression in the patients with low back pain, perioperative complications, and readmission rate following spine surgery; (2) enhancement of the clinically relevant information extracted from radiographic images to predict Pfirrmann grades, Modic changes, and spinal stenosis grades on magnetic resonance images automatically; (3) prediction of outcomes in lumbar spinal stenosis, lumbar disc herniation and patient-reported outcomes in lumbar fusion surgery, and preoperative planning and intraoperative assistance; and (4) its application in the biomechanical assessment of spinal diseases. The evidence suggests that ANNs can be successfully used for optimizing the diagnosis, prognosis and outcome prediction in spinal diseases. Therefore, incorporation of ANNs into spine clinical practice may improve clinical decision making.
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Affiliation(s)
- Parisa Azimi
- Department of Neurosurgery, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Edward C Benzel
- Department of Neurosurgery, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - Hossein Nayeb Aghaei
- Department of Neurosurgery, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shirzad Azhari
- Department of Neurosurgery, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sohrab Sadeghi
- Department of Neurosurgery, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ali Montazeri
- Mental Health Research Group, Health Metrics Research Centre, Iranian Institute for Health Sciences Research, ACECR, Tehran, Iran
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Bartsch AJ, McCrea MM, Hedin DS, Gibson PL, Miele VJ, Benzel EC, Alberts JL, Samorezov S, Shah A, Stemper BS. Laboratory and On-field Data Collected by a Head Impact Monitoring Mouthguard. Annu Int Conf IEEE Eng Med Biol Soc 2020; 2019:2068-2072. [PMID: 31946308 DOI: 10.1109/embc.2019.8856907] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Although concussion continues to be a major source of acute and chronic injury in automotive, athletic and military arenas, concussion injury mechanisms and risk functions are ill-defined. This lack of definition has hindered efforts to develop standardized concussion monitoring, safety testing and protective countermeasures. Recent research has provided evidence of the role of repetitive head impact exposure as a predisposing factor for the onset of concussion using developed instrumented helmets and mouthguards.To overcome this knowledge gap, we have developed, tested and deployed a head impact monitoring mouthguard (IMM) system. In this study, we deployed the IMM system to gather high quality estimates of athlete head impacts in situ. And with enough longer-term data collection, potential concussive events or mild traumatic brain injuries (mTBIs) will be gathered and ideally will provide actionable risk-based threshold.
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Benzel EC. Erratum to “Editor's Letter: What a Year!” [World Neurosurgery 132 (2019) xxii]. World Neurosurg 2020. [DOI: 10.1016/j.wneu.2019.12.113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Azadmanjir Z, Jazayeri SB, Habibi Arejan R, Ghodsi Z, Sharif-Alhoseini M, Kheiri G, Zendehdel K, Safdarian M, Sadeghian F, Khazaeipour Z, Naghdi K, Arab Kheradmand J, Saadat S, Pirnejad H, Fazel MR, Fakharian E, Mohammadzadeh M, Sadeghi-Naini M, Saberi H, Derakhshan P, Sabour H, Benzel EC, Oreilly G, Noonan V, Vaccaro AR, Emami-Razavi SH, Rahimi-Movaghar V. The data set development for the National Spinal Cord Injury Registry of Iran (NSCIR-IR): progress toward improving the quality of care. Spinal Cord Ser Cases 2020; 6:17. [PMID: 32210224 PMCID: PMC7093542 DOI: 10.1038/s41394-020-0265-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 02/29/2020] [Accepted: 02/29/2020] [Indexed: 12/17/2022] Open
Abstract
STUDY DESIGN Descriptive study. OBJECTIVES The aim of this manuscript is to describe the development process of the data set for the National Spinal Cord Injury Registry of Iran (NSCIR-IR). SETTING SCI community in Iran. METHODS The NSCIR-IR data set was developed in 8 months, from March 2015 to October 2015. An expert panel of 14 members was formed. After a review of data sets of similar registries in developed countries, the selection and modification of the basic framework were performed over 16 meetings, based on the objectives and feasibility of the registry. RESULTS The final version of the data set was composed of 376 data elements including sociodemographic, hospital admission, injury incidence, prehospital procedures, emergency department visit, medical history, vertebral injury, spinal cord injury details, interventions, complications, and discharge data. It also includes 163 components of the International Standards for the Neurologic Classification of Spinal Cord Injury (ISNCSCI) and 65 data elements related to quality of life, pressure ulcers, pain, and spasticity. CONCLUSION The NSCIR-IR data set was developed in order to meet the quality improvement objectives of the registry. The process was centered around choosing the data elements assessing care provided to individuals in the acute and chronic phases of SCI in hospital settings. The International Spinal Cord Injury Data Set was selected as a basic framework, helped by comparison with data from other countries. Expert panel modifications facilitated the implementation of the registry process with the current clinical workflow in hospitals.
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Affiliation(s)
- Zahra Azadmanjir
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran
- Department of Health Information Management, School of Allied Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Behzad Jazayeri
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran
- Department of Urology, University of Florida, Jacksonville, FL, USA
| | - Roya Habibi Arejan
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Ghodsi
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahdi Sharif-Alhoseini
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Ghazaleh Kheiri
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
- Student's Scientific Research Center (SSRC), Tehran University of Medical Sciences, Tehran, Iran
| | - Kazem Zendehdel
- Cancer Research Center, Cancer Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahdi Safdarian
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Farideh Sadeghian
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran
- Center for Health Related Social and Behavioral Science Research, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Zahra Khazaeipour
- Brain and Spinal Cord Injury Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Khatereh Naghdi
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Soheil Saadat
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Habibollah Pirnejad
- Health Information Technology Department, Urmia University of Medical Sciences, Urmia, Iran
| | | | - Esmail Fakharian
- Trauma Research Center, Kashan University of Medical Sciences, Kashan, Iran
| | | | - Mohsen Sadeghi-Naini
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran
- Shahid Beheshti University of Medical Science, Tehran, Iran
| | - Houshang Saberi
- Brain and Spinal Cord Injury Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
- Department of Neurosurgery Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Pegah Derakhshan
- Student Research Committee, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Hadis Sabour
- Brain and Spinal Cord Injury Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Edward C Benzel
- Department of Neurosurgery, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - Gerard Oreilly
- Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia
| | - Vanessa Noonan
- Rick Hansen Institute, University of British Columbia, Vancouver, BC, Canada
| | - Alexander R Vaccaro
- Department of Orthopedic Surgery, Rothman Institute, Thomas Jefferson University, Philadelphia, PA, USA
| | - Seyed Hassan Emami-Razavi
- Brain and Spinal Cord Injury Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Vafa Rahimi-Movaghar
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran.
- Brain and Spinal Cord Injury Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran.
- Department of Neurosurgery, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran.
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Sharif-Alhoseini M, Azadmanjir Z, Sadeghi-Naini M, Ghodsi Z, Naghdi K, Mohammadzadeh M, AzarHomayoun A, Zendehdel K, Khormali M, Sadeghian F, Jazayeri SB, Sehat M, Pirnejad H, Benzel EC, O'Reilly G, Fehlings MG, Vaccaro AR, Rahimi-Movaghar V. National Spinal Cord Injury Registry of Iran (NSCIR-IR) - a critical appraisal of its strengths and weaknesses. Chin J Traumatol 2019; 22:300-303. [PMID: 31445798 PMCID: PMC6823677 DOI: 10.1016/j.cjtee.2019.05.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 05/19/2019] [Accepted: 06/05/2019] [Indexed: 02/04/2023] Open
Abstract
The National Spinal Cord Injury Registry of Iran (NSCIR-IR) is a not-for-profit, hospital-based, and prospective observational registry that appraises the quality of care, long-term outcomes and the personal and psychological burden of traumatic spinal cord injury in Iran. Benchmarking validity in every registry includes rigorous attention to data quality. Data quality assurance is essential for any registry to make sure that correct patients are being enrolled and that the data being collected are valid. We reviewed strengths and weaknesses of the NSCIR-IR while considering the methodological guidelines and recommendations for efficient and rational governance of patient registries. In summary, the steering committee, funded and maintained by the Ministry of Health and Medical Education of Iran, the international collaborations, continued staff training, suitable data quality, and the ethical approval are considered to be the strengths of the registry, while limited human and financial resources, poor interoperability with other health systems, and time-consuming processes are among its main weaknesses.
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Affiliation(s)
- Mahdi Sharif-Alhoseini
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Azadmanjir
- Department of Health Information Management, School of Allied Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohsen Sadeghi-Naini
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Ghodsi
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Khatereh Naghdi
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Amir AzarHomayoun
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Kazem Zendehdel
- Cancer Research Center, Cancer Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Moein Khormali
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran,Students' Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Farideh Sadeghian
- Center for Health Related Social and Behavioral Sciences Research, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Seyed Behzad Jazayeri
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mojtaba Sehat
- Trauma Research Center, Kashan University of Medical Sciences, Kashan, Iran
| | - Habibollah Pirnejad
- Department of Health Information Technology, Urmia University of Medical Sciences, Urmia, Iran
| | - Edward C. Benzel
- Cleveland Clinic Foundation, Department of Neurosurgery, Cleveland, OH, USA
| | - Gerard O'Reilly
- Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia
| | - Michael G. Fehlings
- Toronto Western Hospital, University Health Network, Toronto, Ontario, Canada
| | - Alexander R. Vaccaro
- Department of Orthopaedic Surgery, The Rothman Institute, Thomas Jefferson University, Philadelphia, USA
| | - Vafa Rahimi-Movaghar
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran,Brain and Spinal Cord Injury Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran,Corresponding author. Sina Trauma and Surgery Research Center, Sina Hospital, Hassan-Abad Square, Imam Khomeini Ave, Tehran, 11365-3876, Iran.
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Pennington Z, Mehta VA, Lubelski D, Elliott C, Miller JA, Benzel EC, Mroz TE. Quality of Life and Cost Implications of Pseudarthrosis After Anterior Cervical Discectomy and Fusion and its Subsequent Revision Surgery. World Neurosurg 2019; 133:e592-e599. [PMID: 31568900 DOI: 10.1016/j.wneu.2019.09.104] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2019] [Revised: 09/14/2019] [Accepted: 09/19/2019] [Indexed: 10/25/2022]
Abstract
BACKGROUND More than 120,000 anterior cervical discectomy and fusions (ACDFs) are performed annually. Pseudarthrosis is a potential delayed adverse event that affects up to 33% of patients. The degree to which this adverse event affects both patient quality-of-life (QOL) outcomes and health care costs is poorly understood. METHODS Patients who underwent revision surgery for pseudarthrosis between 2007 and 2012 were identified and matched to controls not experiencing pseudarthrosis in a 1:2 fashion (case/control). Cases and controls were compared regarding total health care costs incurred in the year after the index ACDF and QOL outcomes on the following metrics: EuroQol Five-Dimensions Questionnaire, Patient Health Questionnaire-9, and Pain Disability Questionnaire. RESULTS Of 738 patients who underwent ACDF, 11 underwent surgery for pseudarthrosis. No differences were noted between cases and controls regarding any of the matched variables. Patients in the pseudarthrosis cohort had poorer postoperative scores on the EuroQol Five-Dimensions Questionnaire mobility, usual activities, pain/discomfort, and quality-adjusted life-year dimensions. In addition, 64% of patients with pseudarthrosis had worsened quality-adjusted life-year scores compared with only 9% of controls (P < 0.01). Patients with pseudarthrosis also had poorer mental health (P < 0.01) and pain disability outcomes (P < 0.01) than did controls. Pseudarthrosis was associated with significant increases in direct costs, direct postoperative costs, and total costs (all P < 0.01). CONCLUSIONS This is the first study to characterize the effect of surgical revision for pseudarthrosis on both QOL outcomes and care costs after ACDF. Patients requiring revision experienced significantly poorer QOL outcomes and higher care costs relative to controls.
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Affiliation(s)
- Zach Pennington
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Vikram A Mehta
- Department of Neurosurgery, Duke University School of Medicine, Durham, North Carolina, USA
| | - Daniel Lubelski
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Charles Elliott
- Department of Emergency Medicine, University of Arizona, Tucson, Arizona, USA
| | - Jacob A Miller
- Department of Radiation Oncology, Stanford Hospital, Palo Alto, California, USA
| | - Edward C Benzel
- Cleveland Clinic Center for Spine Health, Cleveland Clinic, Cleveland, Ohio, USA; Department of Neurological Surgery, Cleveland Clinic, Cleveland, Ohio, USA; Cleveland Clinic Lerner College of Medicine, Cleveland, Ohio, USA
| | - Thomas E Mroz
- Cleveland Clinic Center for Spine Health, Cleveland Clinic, Cleveland, Ohio, USA; Department of Neurological Surgery, Cleveland Clinic, Cleveland, Ohio, USA; Cleveland Clinic Lerner College of Medicine, Cleveland, Ohio, USA.
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Pennington Z, Alentado VJ, Lubelski D, Alvin MD, Levin JM, Benzel EC, Mroz TE. Quality of life changes after lumbar decompression in patients with tandem spinal stenosis. Clin Neurol Neurosurg 2019; 184:105455. [PMID: 31376775 DOI: 10.1016/j.clineuro.2019.105455] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 07/10/2019] [Accepted: 07/25/2019] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Tandem spinal stenosis (TSS) is a degenerative spinal condition characterized by spinal canal narrowing at 2 or more distinct spinal levels. It is an aging-related condition that is likely to increase as the population ages, but which remains poorly described in the literature. Here we sought to determine the impact of primary lumbar decompression on quality-of-life (QOL) outcomes in patients with symptomatic TSS. PATIENTS AND METHODS We retrospectively reviewed 803 patients with clinical and radiographic evidence of TSS treated between 2008 and 2014 with a minimum 2-year follow-up. The records of patients with clinical and radiographic evidence of concurrent cervical and lumbar stenosis were reviewed. Prospectively gathered QOL data, including the Pain Disability Questionnaire (PDQ), Patient Health Questionnaire-9 (PHQ-9), EuroQOL-5 Dimensions (EQ-5D), and Visual Analogue Scale (VAS) for low back pain, were assessed at the 6-month, 1-year, and 2-year follow-ups. RESULTS Of 803 identified patients (mean age 66.2 years; 46.9% male), 19.6% underwent lumbar decompression only, 14.1% underwent cervical + lumbar decompression, and 66.4% underwent conservative management only. Baseline VAS scores were similar across all groups, but patients undergoing conservative management had better baseline QOL scores on all other measures. Both surgical cohorts experienced significant improvements in the VAS, PDQ, and EQ-5D at all time points; patients in the cervical + lumbar cohort also had significant improvement in the PHQ-9. Conservatively managed patients showed no significant improvement in QOL scores at any follow-up interval. CONCLUSION Lumbar decompression with or without cervical decompression improves low back pain and QOL outcomes in patients with TSS. The decision to prioritize lumbar decompression is therefore unlikely to adversely affect long-term quality-of-life improvements.
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Affiliation(s)
- Zach Pennington
- Department of Neurosurgery, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Vincent J Alentado
- Department of Neurological Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Daniel Lubelski
- Department of Neurosurgery, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Matthew D Alvin
- Department of Diagnostic Radiology, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Jay M Levin
- Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Edward C Benzel
- Cleveland Clinic Center for Spine Health, Cleveland Clinic, Cleveland, OH, USA; Cleveland Clinic Lerner College of Medicine, Cleveland, OH, USA; Department of Neurological Surgery, Cleveland Clinic, Cleveland, OH, USA
| | - Thomas E Mroz
- Cleveland Clinic Center for Spine Health, Cleveland Clinic, Cleveland, OH, USA; Cleveland Clinic Lerner College of Medicine, Cleveland, OH, USA; Department of Neurological Surgery, Cleveland Clinic, Cleveland, OH, USA.
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Kitab S, Lee BS, Benzel EC. Redefining lumbar spinal stenosis as a developmental syndrome: an MRI-based multivariate analysis of findings in 709 patients throughout the 16- to 82-year age spectrum. J Neurosurg Spine 2019; 29:654-660. [PMID: 30215592 DOI: 10.3171/2018.5.spine18100] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 05/22/2018] [Indexed: 12/20/2022]
Abstract
OBJECTIVEUsing an imaging-based prospective comparative study of 709 eligible patients that was designed to assess lumbar spinal stenosis (LSS) in the ages between 16 and 82 years, the authors aimed to determine whether they could formulate radiological structural differences between the developmental and degenerative types of LSS.METHODSMRI structural changes were prospectively reviewed from 2 age cohorts of patients: those who presented clinically before the age of 60 years and those who presented at 60 years or older. Categorical degeneration variables at L1-S1 segments were compared. A multivariate comparative analysis of global radiographic degenerative variables and spinal dimensions was conducted in both cohorts. The age at presentation was correlated as a covariable.RESULTSA multivariate analysis demonstrated no significant between-groups differences in spinal canal dimensions and stenosis grades in any segments after age was adjusted for. There were no significant variances between the 2 cohorts in global degenerative variables, except at the L4-5 and L5-S1 segments, but with only small effect sizes. Age-related degeneration was found in the upper lumbar segments (L1-4) more than the lower lumbar segments (L4-S1). These findings challenge the notion that stenosis at L4-5 and L5-S1 is mainly associated with degenerative LSS.CONCLUSIONSIntegration of all the morphometric and qualitative characteristics of the 2 LSS cohorts provides evidence for a developmental background for LSS. Based on these findings the authors propose the concept of LSS as a developmental syndrome with superimposed degenerative changes. Further studies can be conducted to clarify the clinical definition of LSS and appropriate management approaches.
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Affiliation(s)
- Sameer Kitab
- 1Scientific Council of Orthopedics, Baghdad, Iraq
| | - Bryan S Lee
- 2Department of Neurosurgery, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland Clinic; and.,3Center for Spine Health, Neurological Institute, Cleveland Clinic, Cleveland, Ohio
| | - Edward C Benzel
- 2Department of Neurosurgery, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland Clinic; and.,3Center for Spine Health, Neurological Institute, Cleveland Clinic, Cleveland, Ohio
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Yee P, Tanenbaum JE, Pelle DW, Moore D, Benzel EC, Steinmetz MP, Mroz TE. DRG-based bundled reimbursement for lumbar fusion: implications for patient selection. J Neurosurg Spine 2019; 31:1-6. [PMID: 31252386 DOI: 10.3171/2019.3.spine18875] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Accepted: 03/20/2019] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Under the Bundled Payments for Care Improvement (BPCI) initiative, Medicare reimburses for lumbar fusion without adjusting for underlying pathology. However, lumbar fusion is a widely used technique that can treat both degenerative and traumatic pathologies. In other surgical cohorts, significant heterogeneity exists in resource use when comparing procedures for traumatic versus degenerative pathologies. If the same were true for lumbar fusion, BPCI would create a financial disincentive to treat specific patient populations. The goal of this study was to compare hospital resource use for lumbar fusion between 2 patient populations: patients with spondylolisthesis and patients with lumbar vertebral fracture. METHODS The authors compared the hospital resource use of two lumbar fusion cohorts that BPCI groups into the same payment bundle for lumbar fusion: patients with spondylolisthesis and patients with lumbar vertebral fracture. National Inpatient Sample data from 2013 were queried for patients who underwent lumbar fusion for lumbar vertebral fracture or spondylolisthesis. Hospital resource use was measured using length of stay (LOS), direct hospital costs, and odds of discharge to a post-acute care facility and compared using multivariable linear and logistic regression. All models adjusted for patient demographics, 29 comorbidities, and hospital characteristics. RESULTS After adjusting for patient demographics, insurance status, hospital characteristics, and 29 comorbidities, spondylolisthesis patients had a mean LOS that was 36% shorter (95% CI 26%-44%, p < 0.0001), a mean cost that was 13% less (95% CI 3.7%-21%, p < 0.0001), and 3.2 times greater odds of being discharged home (95% CI 2.5-5.4, p < 0.0001) than lumbar vertebral fracture patients. CONCLUSIONS Under the proposed DRG (diagnosis-related group)-based BPCI, hospitals would be reimbursed the same amount for lumbar fusion regardless of the diagnosis. However, compared with fusion for spondylolisthesis, fusion for lumbar vertebral fracture was associated with longer LOS, greater direct hospital costs, and increased likelihood of being discharged to a post-acute care facility. These findings suggest that the BPCI episode of care for lumbar fusion dis-incentivizes treatment of trauma patients.
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Affiliation(s)
- Philina Yee
- 1Center for Spine Health
- 2Case Western Reserve University School of Medicine and
- 3Department of Neurosurgery
| | - Joseph E Tanenbaum
- 1Center for Spine Health
- 2Case Western Reserve University School of Medicine and
- 6Department of Population and Quantitative Health Science, Case Western Reserve University, Cleveland, Ohio
| | | | - Don Moore
- 1Center for Spine Health
- 3Department of Neurosurgery
| | - Edward C Benzel
- 1Center for Spine Health
- 3Department of Neurosurgery
- 4Cleveland Clinic Lerner College of Medicine, Cleveland Clinic; and
| | - Michael P Steinmetz
- 1Center for Spine Health
- 3Department of Neurosurgery
- 4Cleveland Clinic Lerner College of Medicine, Cleveland Clinic; and
| | - Thomas E Mroz
- 1Center for Spine Health
- 3Department of Neurosurgery
- 4Cleveland Clinic Lerner College of Medicine, Cleveland Clinic; and
- 5Department of Orthopaedic Surgery, and
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Jones JC, Miller JA, Sudarshana DM, Thompson NR, Benzel EC, Mroz TE. Predictors of favorable quality of life outcome following kyphoplasty and vertebroplasty. J Neurosurg Spine 2019; 31:389-396. [PMID: 31125962 DOI: 10.3171/2019.3.spine18419] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 03/08/2019] [Indexed: 11/06/2022]
Abstract
OBJECTIVE In 2009, 2 randomized controlled trials demonstrated no improvement in pain following vertebral augmentation compared with sham surgery. However, a recent randomized trial demonstrated significant pain relief in patients following vertebroplasty compared to controls treated with conservative medical management. This study is a retrospective review of prospectively collected patient-reported quality of life (QOL) outcomes. The authors hypothesized that vertebral augmentation procedures offer a QOL benefit, but that this benefit would be diminished in patients with a history of depression and/or in patients undergoing vertebral augmentation at more than 1 level. METHODS Multivariable linear regression was used to identify predictors of postoperative pain assessed using the Pain Disability Questionnaire (PDQ), Patient Health Questionnaire 9 (PHQ-9), and EQ-5D scores. Eleven candidate predictors were selected a priori: age, sex, smoking history, coronary artery disease, depression, diabetes, procedure location (thoracic, lumbar), BMI, prior spine surgery, procedure indication (metastases, osteoporosis/osteopenia, other), and number of levels (1, 2, 3, or more). RESULTS A total of 143 patients were included in the study. For each 10-year increase in age, postoperative PDQ scores decreased (improved) by 9.7 points (p < 0.001). Patients with osteoporosis/osteopenia had significantly higher (worse) postoperative PDQ scores (+17.97, p = 0.028) than patients with metastatic lesions. Male sex was associated with higher (worse) postoperative PHQ-9 scores (+2.48, p = 0.010). Compared to single-level augmentation, operations at 2 levels were associated with significantly higher PHQ-9 scores (+2.58, p = 0.017). Current smokers had significantly lower PHQ-9 scores (-1.98, p = 0.023) than never smokers. No predictors were associated with significantly different EQ-5D score. CONCLUSIONS Variables associated with worse postoperative PDQ scores included younger age and osteoporosis/osteopenia. Variables associated with decreased (better) postoperative PHQ-9 scores included female sex, single operative vertebral level, and positive smoking status (i.e., current smoker). These clinically relevant predictors may permit identification of patients who may benefit from vertebral augmentation.
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Affiliation(s)
- Jaes C Jones
- 1Cleveland Clinic Lerner College of Medicine, Cleveland Clinic Foundation
| | - Jacob A Miller
- 1Cleveland Clinic Lerner College of Medicine, Cleveland Clinic Foundation
| | | | | | - Edward C Benzel
- 3Center for Spine Health, Neurological Institute, Cleveland Clinic Foundation, Cleveland, Ohio
| | - Thomas E Mroz
- 3Center for Spine Health, Neurological Institute, Cleveland Clinic Foundation, Cleveland, Ohio
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Keller LJ, Alentado VJ, Tanenbaum JE, Lee BS, Nowacki AS, Benzel EC, Mroz TE, Steinmetz MP. Assessment of postoperative outcomes in spinal epidural abscess following surgical decompression. Spine J 2019; 19:888-895. [PMID: 30537555 DOI: 10.1016/j.spinee.2018.12.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 12/04/2018] [Accepted: 12/05/2018] [Indexed: 02/03/2023]
Abstract
BACKGROUND CONTEXT A spinal epidural abscess (SEA) is a serious condition that may be managed with antibiotics alone or with decompressive surgery combined with antibiotics. PURPOSE The objectives of this study were to assess the clinical outcomes of SEA after surgical management and to identify the patient-level factors that are associated with outcomes following surgical decompression and removal of SEA. STUDY DESIGN/SETTING Retrospective chart review analysis. PATIENT SAMPLE An analysis of 154 consecutive patients who initially presented to a tertiary-care, academic medical center with SEA, and were subsequently treated with surgery between 2010 and 2015 was performed. OUTCOME MEASURES Postoperative predischarge American Spinal Injury Association Impairment Scale (AIS) scores, 6-month follow-up encounter AIS scores, need for revision surgery, and mortality during SEA surgery were the primary outcomes.Physiological Measures: AIS scores. METHOD Fisher's exact and Wilcoxon rank-sum tests were used to assess the associations between patient-level factors and surgical outcomes. Moreover, an interactive, predictive model for postoperative predischarge AIS score was developed using a proportional odds regression model. There was no funding secured for this study and there is no conflict of interest-associated biases. RESULTS One hundred fifty-four patients (mean age of 58 years) were treated using surgical decompression in addition to antibiotics. The majority of patients were Caucasian (81%) and male (61%). No intraoperative mortality was reported. A second SEA surgery was performed in 8% of patients. A comparison of the preoperative and postoperative predischarge AIS scores showed that 49% of patients maintained a score of E or improved, while 45% remained at their preoperative status and 6% worsened. Among a subset of patients (n=36; 23%) for whom a 6-month follow-up encounter occurred, 75% maintained an AIS score of E or improved, 19% remained at their preoperative status, and 6% worsened. Both the presence and longer duration of preoperative paresis was associated with an increased risk of remaining at the same AIS score or worsening at the predischarge encounter (both p< .001). A predictive model for predischarge AIS scores was developed based on several patient characteristics. CONCLUSIONS Surgical decompression can contribute to improving or maintaining AIS scores in a high percentage of SEA patients. The presence and duration of preoperative paresis are prognostic for poorer outcomes and suggest that rapid surgical intervention before paresis develops may lead to improved postoperative outcomes. Our modeling tool enables an estimation of probabilities of patients' predischarge condition.
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Affiliation(s)
- Leonard J Keller
- Center for Spine Health, Cleveland Clinic, 9500 Euclid Ave, Cleveland, OH 44195, USA; Case Western Reserve University School of Medicine, 10900 Euclid Ave, Cleveland, OH 44106, USA.
| | - Vincent J Alentado
- Department of Neurological Surgery, Indiana University School of Medicine, 355W. 16th Stt, Goodman Hall Suite 5100, Indianapolis, IN 46202, USA
| | - Joseph E Tanenbaum
- Center for Spine Health, Cleveland Clinic, 9500 Euclid Ave, Cleveland, OH 44195, USA; Case Western Reserve University School of Medicine, 10900 Euclid Ave, Cleveland, OH 44106, USA; Department of Epidemiology and Biostatistics, Case Western Reserve University, 10900 Euclid Ave, Cleveland, OH 44106, USA
| | - Bryan S Lee
- Center for Spine Health, Cleveland Clinic, 9500 Euclid Ave, Cleveland, OH 44195, USA; Department of Neurosurgery, Cleveland Clinic, 9500 Euclid Ave, Cleveland, OH 44195, USA; Cleveland Clinic Lerner College of Medicine, Cleveland Clinic, 9500 Euclid Ave, Cleveland, OH 44195, USA
| | - Amy S Nowacki
- Cleveland Clinic Lerner College of Medicine, Cleveland Clinic, 9500 Euclid Ave, Cleveland, OH 44195, USA; Department of Quantitative Health Sciences, Cleveland Clinic, 9500 Euclid Ave, Cleveland, OH 44195, USA
| | - Edward C Benzel
- Center for Spine Health, Cleveland Clinic, 9500 Euclid Ave, Cleveland, OH 44195, USA; Department of Neurosurgery, Cleveland Clinic, 9500 Euclid Ave, Cleveland, OH 44195, USA; Cleveland Clinic Lerner College of Medicine, Cleveland Clinic, 9500 Euclid Ave, Cleveland, OH 44195, USA
| | - Thomas E Mroz
- Center for Spine Health, Cleveland Clinic, 9500 Euclid Ave, Cleveland, OH 44195, USA; Department of Neurosurgery, Cleveland Clinic, 9500 Euclid Ave, Cleveland, OH 44195, USA; Department of Orthopaedic Surgery, Cleveland Clinic, 9500 Euclid Ave, Cleveland, OH 44195, USA
| | - Michael P Steinmetz
- Center for Spine Health, Cleveland Clinic, 9500 Euclid Ave, Cleveland, OH 44195, USA; Department of Neurosurgery, Cleveland Clinic, 9500 Euclid Ave, Cleveland, OH 44195, USA; Cleveland Clinic Lerner College of Medicine, Cleveland Clinic, 9500 Euclid Ave, Cleveland, OH 44195, USA
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Alvin MD, Alentado VJ, Lubelski D, Benzel EC, Mroz TE. Cervical spine surgery for tandem spinal stenosis: The impact on low back pain. Clin Neurol Neurosurg 2019; 166:50-53. [PMID: 29408772 DOI: 10.1016/j.clineuro.2018.01.024] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 01/11/2018] [Accepted: 01/20/2018] [Indexed: 11/30/2022]
Abstract
STUDY DESIGN Retrospective Cohort. OBJECTIVE Tandem spinal stenosis (TSS) can present similarly to cervical myelopathy, but often has a worse prognosis. Few studies have investigated outcomes and compared treatment approaches for patients with TSS. We sought to determine the impact of cervical spine surgery on cervical and lumbar spine symptoms in patients with symptomatic tandem spinal stenosis. PATIENTS METHODS 84 patients with TSS were identified over 5 years. 48 underwent cervical spine surgery alone, 20 underwent both cervical and lumbar spine surgery, and 16 received conservative treatment alone (conservative cohort). Quality of life (QOL) measures included the Visual Analogue Scale (VAS) for arm, neck, and back pain, and EuroQOL-5 Dimensions (EQ-5D). QOL data were acquired at baseline (pre-operative) and 1 year postoperatively via an institutional prospectively collected database. RESULTS Both surgical cohorts showed significant (p < 0.01) pre- to postoperative improvement for VAS neck and arm scores at 1-year post-op and significantly (p < 0.01) greater improvements than the conservative cohort. In addition, the cohort undergoing cervical spine surgery alone experienced significant improvement in the EQ-5D score whereas those undergoing both cervical and lumbar spine surgery did not. CONCLUSIONS Cervical spine surgery with or without follow-up lumbar spine surgery significantly improves neck pain in patients with TSS. In contrast, cervical spine surgery in these patients does not improve lumbar symptoms. Lumbar surgery also did not improve low back pain or quality of life. Future prospective studies are necessary to examine the impact of lumbar decompression alone on cervical spine symptoms in patients with TSS.
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Affiliation(s)
- Matthew D Alvin
- Department of Radiology, The Johns Hopkins Hospital, Baltimore, MD, USA
| | - Vincent J Alentado
- Department of Neurological Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Daniel Lubelski
- Department of Neurosurgery, The Johns Hopkins Hospital, Baltimore, MD, USA
| | - Edward C Benzel
- Department of Neurological Surgery, Cleveland Clinic, Cleveland, OH, USA
| | - Thomas E Mroz
- Department of Neurological Surgery, Cleveland Clinic, Cleveland, OH, USA.
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Abstract
STUDY DESIGN Retrospective cohort. OBJECTIVES There are conflicting reports on the short- and long-term quality of life (QOL) outcomes and cost-effectiveness of cervical epidural steroid injections (ESIs). The present study analyzes the cost-effectiveness analysis of ESIs versus conservative management for patients with radiculopathy or neck pain in the short term. METHODS Fifty patients who underwent cervical ESI and 29 patients who received physical therapy and pain medication alone for cervical radiculopathy and neck pain of <6 months duration were included. Three-month postoperative health outcomes were assessed based on EuroQol-5 Dimensions (EQ-5D; measured in quality-adjusted life years [QALYs]). Medical costs were estimated using Medicare national payment amounts. Cost/utility ratios and the incremental cost-effectiveness ratio (ICER) were calculated to assess for cost-effectiveness. RESULTS The ESI cohort experienced significant (P < .01) improvement in the EQ-5D score while the control cohort did not (0.13 vs 0.02 QALYs, respectively; P = .01). There were no significant differences in costs between the cohorts. The cost-utility ratio for the ESI cohort was significantly lower ($21 884/QALY gained) than that for the control cohort ($176 412/QALY gained) (P < .01). The ICER for an ESI versus conservative management was negative, indicating that ESIs provide greater improvement in QOL at a lower cost. CONCLUSIONS ESIs provide significant improvement in QOL within 3 months for patients with cervical radiculopathy and neck pain. ESIs are more cost-effective compared than conservative management alone in the shor -term. The durability of these results must be analyzed with longer term cost-utility analysis studies.
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Affiliation(s)
| | - Vikram Mehta
- Duke University School of Medicine, Durham, NC, USA
| | - Hadi Al Halabi
- Alfaisal University College of Medicine, Riyadh, Saudi Arabia
| | | | | | - Thomas E. Mroz
- Cleveland Clinic, Cleveland, Ohio, USA,Thomas E. Mroz, Departments of Orthopaedic and
Neurological Surgery, Neurological Institute, Cleveland Clinic Center for Spine Health,
The Cleveland Clinic, 9500 Euclid Avenue, S-80, Cleveland, OH 44195, USA.
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Sharma A, Tanenbaum JE, Hogue O, Mehdi S, Vallabh S, Hu E, Benzel EC, Steinmetz MP, Savage JW. Predicting Clinical Outcomes Following Surgical Correction of Adult Spinal Deformity. Neurosurgery 2019; 84:733-740. [PMID: 29873763 DOI: 10.1093/neuros/nyy190] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Accepted: 04/12/2018] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Deformity reconstruction surgery has been shown to improve quality of life (QOL) in cases of adult spinal deformity (ASD) but is associated with significant morbidity. OBJECTIVE To create a preoperative predictive nomogram to help risk-stratify patients and determine which would likely benefit from corrective surgery for ASD as measured by patient-reported health-related quality of life (HRQoL). METHODS All patients aged 25-yr and older with radiographic evidence of ASD and QOL data that underwent thoracolumbar fusion between 2008 and 2014 were identified. Demographic and clinical parameters were obtained. The EuroQol 5 dimensions questionnaire (EQ-5D) was used to measure HRQoL preoperatively and at 12-mo postoperative follow-up. Logistic regression of preoperative variables was used to create the prognostic nomogram. RESULTS Our sample included data from 191 patients. Fifty-one percent of patients experienced clinically relevant postoperative improvement in HRQoL. Seven variables were included in the final model: preoperative EQ-5D score, sex, preoperative diagnosis (degenerative, idiopathic, or iatrogenic), previous spinal surgical history, obesity, and a sex-by-obesity interaction term. Preoperative EQ-5D score independently predicted the outcome. Sex interacted with obesity: obese men were at disproportionately higher odds of improving than nonobese men, but obesity did not affect odds of the outcome among women. Model discrimination was good, with an optimism-adjusted c-statistic of 0.739. CONCLUSION The predictive nomogram that we developed using these data can improve preoperative risk counseling and patient selection for deformity correction surgery.
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Affiliation(s)
- Akshay Sharma
- Center for Spine Health, Cleveland Clinic, Cleveland, Ohio.,Case Western Reserve University School of Medicine, Cleveland, Ohio.,Department of Neurosurgery, Cleveland Clinic, Cleveland, Ohio
| | - Joseph E Tanenbaum
- Center for Spine Health, Cleveland Clinic, Cleveland, Ohio.,Case Western Reserve University School of Medicine, Cleveland, Ohio.,Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, Ohio
| | - Olivia Hogue
- Center for Spine Health, Cleveland Clinic, Cleveland, Ohio.,Department of Quantitative Health Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio
| | - Syed Mehdi
- Department of Orthopedic Surgery and Sports Medicine, University of Kentucky College of Medicine, Lexington, Kentucky
| | - Sagar Vallabh
- Center for Spine Health, Cleveland Clinic, Cleveland, Ohio.,Case Western Reserve University School of Medicine, Cleveland, Ohio.,Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, Ohio
| | - Emily Hu
- Center for Spine Health, Cleveland Clinic, Cleveland, Ohio.,Case Western Reserve University School of Medicine, Cleveland, Ohio.,Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, Ohio
| | - Edward C Benzel
- Center for Spine Health, Cleveland Clinic, Cleveland, Ohio.,Department of Neurosurgery, Cleveland Clinic, Cleveland, Ohio
| | - Michael P Steinmetz
- Center for Spine Health, Cleveland Clinic, Cleveland, Ohio.,Department of Neurosurgery, Cleveland Clinic, Cleveland, Ohio.,Cleveland Clinic Lerner College of Medicine, Cleveland Clinic, Cleveland, Ohio
| | - Jason W Savage
- Center for Spine Health, Cleveland Clinic, Cleveland, Ohio.,Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, Ohio
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Soni P, Habboub G, Kshettry VR, Schlenk R, Lautzenheiser F, Benzel EC. Charles E. Locke Jr. (1895-1929): the founder of neurosurgery at the Cleveland Clinic. J Neurosurg 2019; 131:1954-1957. [PMID: 30660124 DOI: 10.3171/2018.9.jns172593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Accepted: 09/10/2018] [Indexed: 11/06/2022]
Abstract
The Cleveland Clinic was established in 1921 under the direction of 4 experienced and iconic physicians: George Crile, Frank Bunts, William Lower, and John Phillips. The Clinic initially employed a staff of only 6 surgeons, 4 internists, 1 radiologist, and 1 biophysicist, but Crile was quick to realize the need for broadening its scope of practice. He asked his close friend, Harvey Cushing, for assistance in finding a suitable candidate to establish a department of neurosurgery at the Cleveland Clinic. With his full endorsement, Cushing recommended Dr. Charles Edward Locke Jr., a former student and burgeoning star in the field of neurosurgery. Unfortunately, Locke's life and career both ended prematurely in the Cleveland Clinic fire of 1929, but not before he would leave a lasting legacy, both at the Cleveland Clinic and in the field of neurosurgery.
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Affiliation(s)
| | | | - Varun R Kshettry
- 1Department of Neurosurgery.,2Rose Ella Burkhardt Brain Tumor & Neuro-Oncology Center
| | - Richard Schlenk
- 1Department of Neurosurgery.,4Center for Spine Health, Cleveland Clinic, Cleveland, Ohio
| | | | - Edward C Benzel
- 1Department of Neurosurgery.,4Center for Spine Health, Cleveland Clinic, Cleveland, Ohio
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Lee BS, Walsh KM, Lubelski D, Knusel KD, Steinmetz MP, Mroz TE, Schlenk RP, Kalfas IH, Benzel EC. The effect of C2–3 disc angle on postoperative adverse events in cervical spondylotic myelopathy. J Neurosurg Spine 2019; 30:38-45. [DOI: 10.3171/2018.6.spine1862] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 06/05/2018] [Indexed: 11/06/2022]
Abstract
OBJECTIVEComplete radiographic and clinical evaluations are essential in the surgical treatment of cervical spondylotic myelopathy (CSM). Prior studies have correlated cervical sagittal imbalance and kyphosis with disability and worse health-related quality of life. However, little is known about C2–3 disc angle and its correlation with postoperative outcomes. The present study is the first to consider C2–3 disc angle as an additional radiographic predictor of postoperative adverse events.METHODSA retrospective chart review was performed to identify patients with CSM who underwent surgeries from 2010 to 2014. Data collected included demographics, baseline presenting factors, and postoperative outcomes. Cervical sagittal alignment variables were measured using the preoperative and postoperative radiographs. Univariable logistic regression analyses were used to explore the association between dependent and independent variables, and a multivariable logistic regression model was created using stepwise variable selection.RESULTSThe authors identified 171 patients who had complete preoperative and postoperative radiographic and outcomes data. The overall rate of postoperative adverse events was 33% (57/171), and postoperative C2–3 disc angle, C2–7 sagittal vertical axis, and C2–7 Cobb angle were found to be significantly associated with adverse events. Inclusion of postoperative C2–3 disc angle in the analysis led to the best prediction of adverse events. The mean postoperative C2–3 disc angle for patients with any postoperative adverse event was 32.3° ± 17.2°, and the mean for those without any adverse event was 22.4° ± 11.1° (p < 0.0001).CONCLUSIONSIn the present retrospective analysis of postoperative adverse events in patients with CSM, the authors found a significant association between C2–3 disc angle and postoperative adverse events. They propose that C2–3 disc angle be used as an additional parameter of cervical spinal sagittal alignment and predictor for operative outcomes.
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Affiliation(s)
- Bryan S. Lee
- 1Department of Neurosurgery, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland Clinic, Cleveland, Ohio
- 5Center for Spine Health, Neurological Institute, Cleveland Clinic, Cleveland, Ohio
| | - Kevin M. Walsh
- 2Department of Neurosurgery, Allegheny Health Network, Pittsburgh, Pennsylvania
| | - Daniel Lubelski
- 3Department of Neurosurgery, Johns Hopkins University, Baltimore, Maryland
| | | | - Michael P. Steinmetz
- 1Department of Neurosurgery, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland Clinic, Cleveland, Ohio
- 5Center for Spine Health, Neurological Institute, Cleveland Clinic, Cleveland, Ohio
| | - Thomas E. Mroz
- 5Center for Spine Health, Neurological Institute, Cleveland Clinic, Cleveland, Ohio
| | - Richard P. Schlenk
- 1Department of Neurosurgery, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland Clinic, Cleveland, Ohio
- 5Center for Spine Health, Neurological Institute, Cleveland Clinic, Cleveland, Ohio
| | - Iain H. Kalfas
- 1Department of Neurosurgery, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland Clinic, Cleveland, Ohio
- 5Center for Spine Health, Neurological Institute, Cleveland Clinic, Cleveland, Ohio
| | - Edward C. Benzel
- 1Department of Neurosurgery, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland Clinic, Cleveland, Ohio
- 5Center for Spine Health, Neurological Institute, Cleveland Clinic, Cleveland, Ohio
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Lumba-Brown A, Yeates KO, Sarmiento K, Breiding MJ, Haegerich TM, Gioia GA, Turner M, Benzel EC, Suskauer SJ, Giza CC, Joseph M, Broomand C, Weissman B, Gordon W, Wright DW, Moser RS, McAvoy K, Ewing-Cobbs L, Duhaime AC, Putukian M, Holshouser B, Paulk D, Wade SL, Herring SA, Halstead M, Keenan HT, Choe M, Christian CW, Guskiewicz K, Raksin PB, Gregory A, Mucha A, Taylor HG, Callahan JM, DeWitt J, Collins MW, Kirkwood MW, Ragheb J, Ellenbogen RG, Spinks TJ, Ganiats TG, Sabelhaus LJ, Altenhofen K, Hoffman R, Getchius T, Gronseth G, Donnell Z, O'Connor RE, Timmons SD. Centers for Disease Control and Prevention Guideline on the Diagnosis and Management of Mild Traumatic Brain Injury Among Children. JAMA Pediatr 2018; 172:e182853. [PMID: 30193284 PMCID: PMC7006878 DOI: 10.1001/jamapediatrics.2018.2853] [Citation(s) in RCA: 285] [Impact Index Per Article: 47.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Importance Mild traumatic brain injury (mTBI), or concussion, in children is a rapidly growing public health concern because epidemiologic data indicate a marked increase in the number of emergency department visits for mTBI over the past decade. However, no evidence-based clinical guidelines have been developed to date for diagnosing and managing pediatric mTBI in the United States. Objective To provide a guideline based on a previous systematic review of the literature to obtain and assess evidence toward developing clinical recommendations for health care professionals related to the diagnosis, prognosis, and management/treatment of pediatric mTBI. Evidence Review The Centers for Disease Control and Prevention (CDC) National Center for Injury Prevention and Control Board of Scientific Counselors, a federal advisory committee, established the Pediatric Mild Traumatic Brain Injury Guideline Workgroup. The workgroup drafted recommendations based on the evidence that was obtained and assessed within the systematic review, as well as related evidence, scientific principles, and expert inference. This information includes selected studies published since the evidence review was conducted that were deemed by the workgroup to be relevant to the recommendations. The dates of the initial literature search were January 1, 1990, to November 30, 2012, and the dates of the updated literature search were December 1, 2012, to July 31, 2015. Findings The CDC guideline includes 19 sets of recommendations on the diagnosis, prognosis, and management/treatment of pediatric mTBI that were assigned a level of obligation (ie, must, should, or may) based on confidence in the evidence. Recommendations address imaging, symptom scales, cognitive testing, and standardized assessment for diagnosis; history and risk factor assessment, monitoring, and counseling for prognosis; and patient/family education, rest, support, return to school, and symptom management for treatment. Conclusions and Relevance This guideline identifies the best practices for mTBI based on the current evidence; updates should be made as the body of evidence grows. In addition to the development of the guideline, CDC has created user-friendly guideline implementation materials that are concise and actionable. Evaluation of the guideline and implementation materials is crucial in understanding the influence of the recommendations.
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Affiliation(s)
| | | | - Kelly Sarmiento
- Division of Unintentional Injury Prevention, National Center for Injury Prevention and Control, Centers for Disease Control and Prevention (CDC), Atlanta, Georgia
| | - Matthew J Breiding
- Division of Unintentional Injury Prevention, National Center for Injury Prevention and Control, Centers for Disease Control and Prevention (CDC), Atlanta, Georgia
| | - Tamara M Haegerich
- Division of Unintentional Injury Prevention, National Center for Injury Prevention and Control, Centers for Disease Control and Prevention (CDC), Atlanta, Georgia
| | - Gerard A Gioia
- Children's National Health System, George Washington University School of Medicine, Washington, DC
| | | | | | - Stacy J Suskauer
- Kennedy Krieger Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Christopher C Giza
- The University of California, Los Angeles (UCLA) Steve Tisch BrainSPORT Program, UCLA Mattel Children's Hospital, David Geffen School of Medicine at UCLA, Los Angeles
| | | | - Catherine Broomand
- Center for Neuropsychological Services, Kaiser Permanente, Roseville, California
| | | | - Wayne Gordon
- Icahn School of Medicine at Mount Sinai, New York, New York
| | | | | | - Karen McAvoy
- Rocky Mountain Hospital for Children, Denver, Colorado
| | - Linda Ewing-Cobbs
- Children's Learning Institute, Department of Pediatrics, University of Texas (UT) Health Science Center at Houston
| | | | - Margot Putukian
- University Health Services, Princeton University, Princeton, New Jersey
| | | | | | - Shari L Wade
- Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | | | | | | | - Meeryo Choe
- The University of California, Los Angeles (UCLA) Steve Tisch BrainSPORT Program, UCLA Mattel Children's Hospital, David Geffen School of Medicine at UCLA, Los Angeles
| | - Cindy W Christian
- Children's Hospital of Philadelphia, Raymond and Ruth Perelman School of Medicine, University of Pennsylvania, Philadelphia
| | | | - P B Raksin
- John H. Stroger, Jr Hospital of Cook County (formerly Cook County Hospital), Chicago, Illinois
| | - Andrew Gregory
- Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Anne Mucha
- University of Pittsburgh Medical Center Sports Medicine Concussion Program, Pittsburgh, Pennsylvania
| | - H Gerry Taylor
- Nationwide Children's Hospital Research Institute, Columbus, Ohio
| | - James M Callahan
- Children's Hospital of Philadelphia, Raymond and Ruth Perelman School of Medicine, University of Pennsylvania, Philadelphia
| | - John DeWitt
- Jameson Crane Sports Medicine Institute, School of Health and Rehabilitation Sciences, The Ohio State University Wexner Medical Center, Columbus
| | - Michael W Collins
- University of Pittsburgh Medical Center Sports Medicine Concussion Program, Pittsburgh, Pennsylvania
| | | | - John Ragheb
- Nicklaus Children's Hospital, University of Miami Miller School of Medicine, Miami, Florida
| | | | - Theodore J Spinks
- Department of Pediatric Neurosurgery, St Joseph's Children's Hospital, Tampa, Florida
| | | | | | | | | | - Tom Getchius
- American Academy of Neurology, Minneapolis, Minnesota
| | | | - Zoe Donnell
- Social Marketing Group, ICF, Rockville, Maryland
| | | | - Shelly D Timmons
- Penn State University Milton S. Hershey Medical Center, Hershey, Pennsylvania
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