scholarly journals Reliability assessment of a novel cervical spine deformity classification system

2015 ◽  
Vol 23 (6) ◽  
pp. 673-683 ◽  
Author(s):  
Christopher P. Ames ◽  
Justin S. Smith ◽  
Robert Eastlack ◽  
Donald J. Blaskiewicz ◽  
Christopher I. Shaffrey ◽  
...  
Keyword(s):  
Cervical Spine ◽  
Spinal Deformity ◽  
Classification System ◽  
Spine Deformity ◽  
Extensive Literature ◽  
Intrarater Reliability ◽  
Modified Delphi ◽  
Delphi Approach ◽  
Horizontal Gaze ◽  
Spine Radiographs

OBJECT Despite the complexity of cervical spine deformity (CSD) and its significant impact on patient quality of life, there exists no comprehensive classification system. The objective of this study was to develop a novel classification system based on a modified Delphi approach and to characterize the intra- and interobserver reliability of this classification. METHODS Based on an extensive literature review and a modified Delphi approach with an expert panel, a CSD classification system was generated. The classification system included a deformity descriptor and 5 modifiers that incorporated sagittal, regional, and global spinopelvic alignment and neurological status. The descriptors included: “C,” “CT,” and “T” for primary cervical kyphotic deformities with an apex in the cervical spine, cervicothoracic junction, or thoracic spine, respectively; “S” for primary coronal deformity with a coronal Cobb angle ≥ 15°; and “CVJ” for primary craniovertebral junction deformity. The modifiers included C2–7 sagittal vertical axis (SVA), horizontal gaze (chin-brow to vertical angle [CBVA]), T1 slope (TS) minus C2–7 lordosis (TS–CL), myelopathy (modified Japanese Orthopaedic Association [mJOA] scale score), and the Scoliosis Research Society (SRS)-Schwab classification for thoracolumbar deformity. Application of the classification system requires the following: 1) full-length standing posteroanterior (PA) and lateral spine radiographs that include the cervical spine and femoral heads; 2) standing PA and lateral cervical spine radiographs; 3) completed and scored mJOA questionnaire; and 4) a clinical photograph or radiograph that includes the skull for measurement of the CBVA. A series of 10 CSD cases, broadly representative of the classification system, were selected and sufficient radiographic and clinical history to enable classification were assembled. A panel of spinal deformity surgeons was queried to classify each case twice, with a minimum of 1 intervening week. Inter- and intrarater reliability measures were based on calculations of Fleiss k coefficient values. RESULTS Twenty spinal deformity surgeons participated in this study. Interrater reliability (Fleiss k coefficients) for the deformity descriptor rounds 1 and 2 were 0.489 and 0.280, respectively, and mean intrarater reliability was 0.584. For the modifiers, including the SRS-Schwab components, the interrater (round 1/round 2) and intrarater reliabilities (Fleiss k coefficients) were: C2–7 SVA (0.338/0.412, 0.584), horizontal gaze (0.779/0.430, 0.768), TS-CL (0.721/0.567, 0.720), myelopathy (0.602/0.477, 0.746), SRS-Schwab curve type (0.590/0.433, 0.564), pelvic incidence-lumbar lordosis (0.554/0.386, 0.826), pelvic tilt (0.714/0.627, 0.633), and C7-S1 SVA (0.071/0.064, 0.233), respectively. The parameter with the poorest reliability was the C7–S1 SVA, which may have resulted from differences in interpretation of positive and negative measurements. CONCLUSIONS The proposed classification provides a mechanism to assess CSD within the framework of global spinopelvic malalignment and clinically relevant parameters. The intra- and interobserver reliabilities suggest moderate agreement and serve as the basis for subsequent improvement and study of the proposed classification.

scholarly journals A standardized nomenclature for cervical spine soft-tissue release and osteotomy for deformity correction

2013 ◽  
Vol 19 (3) ◽  
pp. 269-278 ◽  
Author(s):  
Christopher P. Ames ◽  
Justin S. Smith ◽  
Justin K. Scheer ◽  
Christopher I. Shaffrey ◽  
Virginie Lafage ◽  
...  
Keyword(s):  
Cervical Spine ◽  
Soft Tissue ◽  
Interrater Reliability ◽  
Soft Tissue Release ◽  
Spine Deformity ◽  
Intrarater Reliability ◽  
Perfect Agreement ◽  
Moderate Agreement ◽  
Posterior Anterior ◽  
Anterior Posterior

Object Cervical spine osteotomies are powerful techniques to correct rigid cervical spine deformity. Many variations exist, however, and there is no current standardized system with which to describe and classify cervical osteotomies. This complicates the ability to compare outcomes across procedures and studies. The authors' objective was to establish a universal nomenclature for cervical spine osteotomies to provide a common language among spine surgeons. Methods A proposed nomenclature with 7 anatomical grades of increasing extent of bone/soft tissue resection and destabilization was designed. The highest grade of resection is termed the major osteotomy, and an approach modifier is used to denote the surgical approach(es), including anterior (A), posterior (P), anterior-posterior (AP), posterior-anterior (PA), anterior-posterior-anterior (APA), and posterior-anterior-posterior (PAP). For cases in which multiple grades of osteotomies were performed, the highest grade is termed the major osteotomy, and lower-grade osteotomies are termed minor osteotomies. The nomenclature was evaluated by 11 reviewers through 25 different radiographic clinical cases. The review was performed twice, separated by a minimum 1-week interval. Reliability was assessed using Fleiss kappa coefficients. Results The average intrarater reliability was classified as “almost perfect agreement” for the major osteotomy (0.89 [range 0.60–1.00]) and approach modifier (0.99 [0.95–1.00]); it was classified as “moderate agreement” for the minor osteotomy (0.73 [range 0.41–1.00]). The average interrater reliability for the 2 readings was the following: major osteotomy, 0.87 (“almost perfect agreement”); approach modifier, 0.99 (“almost perfect agreement”); and minor osteotomy, 0.55 (“moderate agreement”). Analysis of only major osteotomy plus approach modifier yielded a classification that was “almost perfect” with an average intrarater reliability of 0.90 (0.63–1.00) and an interrater reliability of 0.88 and 0.86 for the two reviews. Conclusions The proposed cervical spine osteotomy nomenclature provides the surgeon with a simple, standard description of the various cervical osteotomies. The reliability analysis demonstrated that this system is consistent and directly applicable. Future work will evaluate the relationship between this system and health-related quality of life metrics.

scholarly journals Cervical Spine Deformity—Part 3: Posterior Techniques, Clinical Outcome, and Complications

Neurosurgery ◽  
2017 ◽  
Vol 81 (6) ◽  
pp. 893-898 ◽  
Author(s):  
Lee A Tan ◽  
K Daniel Riew ◽  
Vincent C Traynelis
Keyword(s):  
Cervical Spine ◽  
Postoperative Complications ◽  
Clinical Outcome ◽  
Surgical Outcome ◽  
Deformity Correction ◽  
Spine Deformity ◽  
Spinal Stabilization ◽  
Cervical Deformity ◽  
Surgical Options ◽  
Horizontal Gaze

Abstract The goals of cervical deformity surgery include deformity correction, restoration of horizontal gaze, decompression of neural elements, spinal stabilization with a biomechanically sound construct, and meticulous arthrodesis technique to prevent pseudoarthrosis and minimizing surgical complications. Many different surgical options exist, but selecting the correct approach that ensures the optimal clinical outcome can be challenging and often controversial. In this last part of the cervical deformity review series, various posterior deformity correction techniques are discussed in detail, along with an overview of surgical outcome and postoperative complications.

Cervical Lordosis: The Significance of Decreased, Straightened, and Reversed Curves

2015 ◽  
Vol 20 (6) ◽  
pp. 3-5
Author(s):  
Charles N. Brooks ◽  
Marjorie Eskay-Auerbach ◽  
James B. Talmage ◽  
Allan F. Tencer
Keyword(s):  
Cervical Spine ◽  
Sagittal Plane ◽  
Coronal Plane ◽  
Spine Deformity ◽  
Cervical Lordosis ◽  
Normal Range ◽  
Cervical Kyphosis ◽  
X Ray ◽  
Horizontal Gaze ◽  
Over Time

Abstract The normal cervical spine is straight in the coronal plane and usually is lordotic (curved convex anteriorly) in the sagittal plane, and although cervical spine deformity occurs in the coronal plane (eg, scoliosis), sagittal plane deformities are more common. For example, cervical lordosis can be increased (hyperlordosis) within the normal range, decreased (hypolordosis), absent (a straight cervical spine with 0° of curvature on a lateral X ray), or reversed (kyphosis). Primary deformity of the cervical spine often is congenital (eg, wedge vertebra); secondary sagittal deformities may be due to disc degeneration accompanying aging, disease such as ankylosing spondylitis, or surgery (eg, for postlaminectomy kyphosis). Decreased, straightened, or reversed cervical lordosis (DSRCL) may be idiopathic and can be voluntary, and evaluators must differentiate DSRCL that does not change over time vs sagittal plane alignment that varies over time or with a change in posture or position. DSRCL usually is asymptomatic, but severe cervical kyphosis can cause neck pain, myelopathy, dysphagia, loss of horizontal gaze, and other symptoms that are sufficiently severe to result in disability and to require surgical correction. Reports of DSRCL due to spasm, particularly at times temporally remote to an injury, should be met with extreme skepticism. Kyphosis of sufficient severity to be symptomatic usually is a postoperative deformity, not an effect of whiplash.

scholarly journals Consensus-based approach to managing opioids, including opioid misuse and opioid use disorder, in patients with serious illness: protocol for a modified Delphi process

BMJ Open ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. e045402
Author(s):  
Caroline King ◽  
Robert Arnold ◽  
Emily Dao ◽  
Jennifer Kapo ◽  
Jane Liebschutz ◽  
...  
Keyword(s):  
Palliative Care ◽  
Opioid Therapy ◽  
Opioid Use Disorder ◽  
Opioid Misuse ◽  
Opioid Use ◽  
Serious Illness ◽  
Modified Delphi ◽  
Delphi Approach ◽  
Institutional Review ◽  
Management Guidance

IntroductionManagement of opioid misuse and opioid use disorder (OUD) among individuals with serious illness is an important yet understudied issue. Palliative care clinicians caring for individuals with serious illness, many of whom may live for months or years, describe a complex tension between weighing the benefits of opioids, which are considered a cornerstone of pain management in serious illness, and serious opioid-related harms like opioid misuse and OUD. And yet, little literature exists to inform the management of opioid misuse and OUDs among individuals with serious illness. Our objective is to provide evidence-based management guidance to clinicians caring for individuals with serious illness who develop opioid misuse or OUD.Methods and analysisWe chose a modified Delphi approach, which is appropriate when empirical evidence is lacking and expert input must be used to shape clinical guidance. We sought to recruit 60 clinicians with expertise in palliative care, addiction or both to participate in this study. We created seven patient cases that capture important management challenges in individuals with serious illness prescribed opioid therapy. We used ExpertLens, an online platform for conducting modified Delphi panels. Participants completed three rounds of data collection. In round 1, they rated and commented on the appropriateness of management choices for cases. In round 2, participants reviewed and discussed their own and other participants’ round 1 numerical responses and comments. In round 3 (currently ongoing), participants again reviewed rounds 1 and 2, and are allowed to change their final numerical responses. We used ExpertLens to automatically identify whether there is consensus, or disagreement, among responses in panels. Only round 3 responses will be used to assess final consensus and disagreement.Ethics and disseminationThis project received ethical approval from the University of Pittsburgh’s Institutional Review Board (study 19110301) and the RAND Institutional Research Board (study 2020-0142). Guidance from this work will be disseminated through national stakeholder networks to gain buy-in and endorsement. This study will also form the basis of an implementation toolkit for clinicians caring for individuals with serious illness who are at risk of opioid misuse or OUD.

scholarly journals Building a neuroinfectious disease consensus curriculum

Neurology ◽  
2019 ◽  
Vol 93 (5) ◽  
pp. 208-216
Author(s):  
Arun Venkatesan ◽  
Felicia C. Chow ◽  
Allen Aksamit ◽  
Russell Bartt ◽  
Thomas P. Bleck ◽  
...  
Keyword(s):  
American Academy ◽  
Delphi Technique ◽  
Fellowship Training ◽  
Consensus Process ◽  
Diverse Range ◽  
Modified Delphi ◽  
Delphi Approach ◽  
Modified Delphi Technique ◽  
Comprehensive Curriculum ◽  
American Academy Of Neurology

ObjectiveTo delineate a comprehensive curriculum for fellowship training in neuroinfectious diseases, we conducted a modified Delphi approach to reach consensus among 11 experts in the field.MethodsThe authors invited a diverse range of experts from the American Academy of Neurology Neuro-Infectious Diseases (AAN Neuro-ID) Section to participate in a consensus process using a modified Delphi technique.ResultsA comprehensive list of topics was generated with 101 initial items. Through 3 rounds of voting and discussion, a curriculum with 83 items reached consensus.ConclusionsThe modified Delphi technique provides an efficient and rigorous means to reach consensus on topics requiring expert opinion. The AAN Neuro-ID section provided the pool of diverse experts, the infrastructure, and the community through which to accomplish the consensus project successfully. This process could be applied to other subspecialties and sections at the AAN.

A new nomenclature system for the surgical treatment of cervical spine deformity, developing, and validation of SOF system

2021 ◽  
Author(s):  
Jae Taek Hong ◽  
Heiko Koller ◽  
Kuniyoshi Abumi ◽  
Wen Yuan ◽  
Asdrubal Falavigna ◽  
...  
Keyword(s):  
Cervical Spine ◽  
Surgical Treatment ◽  
Spine Deformity ◽  
Nomenclature System

scholarly journals Selecting contextually appropriate performance indicators in a circumpolar context: a modified Delphi approach

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Rebecca Rich ◽  
Thomsen D’Hont ◽  
Kellie E. Murphy ◽  
Jeremy Veillard ◽  
Susan Chatwood
Keyword(s):  
Child Health ◽  
Performance Measurement ◽  
Performance Indicators ◽  
Maternity Care ◽  
Cultural Safety ◽  
Determinants Of Health ◽  
Maternal Child Health ◽  
Modified Delphi ◽  
Delphi Approach ◽  
Maternal Child

Abstract Background Meaningful performance measurement requires indicators to be scientifically robust and strategically focused. For many circumpolar states, indicators aligned with national strategies may ignore the priorities of northern, remote, or Indigenous populations. The aim of this project was to identify contextually appropriate performance indicators for maternity care in circumpolar regions. Methods Fourteen maternity care and health systems experts participated in a modified Delphi consensus process. The list of proposed indicators was derived from a previously published scoping review. Fourteen participants rated each proposed indicator according to importance, circumpolar relevance, validity, and reliability and suggested additional indicators for consideration. Results Consensus was achieved after two rounds, as measured by a Cronbach’s alpha of 0.87. Eleven indicators, many of which represented physical health outcomes, were ranked highly on all four criteria. Twenty-nine additional indicators, largely focused on social determinants of health, health care responsiveness, and accessibility, were identified for further research. Travel for care, cultural safety and upstream structural determinants of health were identified as important themes. Conclusions This study identified the important gaps between current performance measurement strategies and the context and values that permeate maternal-child health in circumpolar regions. The indicators identified in this study provide an important foundation for ongoing work. We recommend that future work encompass an appreciation for the intersectoral nature of social, structural, and colonial determinants of maternal-child health in circumpolar regions.

scholarly journals Caregiver-Centered Care Health Workforce Competencies: Developing Consistent Support for Family Caregivers

2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 15-15
Author(s):  
Jasneet Parmar ◽  
Sharon Anderson ◽  
Lisa Poole ◽  
Wendy Duggleby ◽  
Jayna Holyroyd-Leduc ◽  
...  
Keyword(s):  
Health System ◽  
Family Caregivers ◽  
Health Providers ◽  
Care Providers ◽  
Modified Delphi ◽  
Healthcare Settings ◽  
Delphi Approach ◽  
People With Dementia ◽  
Health And Social Care ◽  
Centered Care

Abstract Family caregivers [FCGs] are the backbone of the health system. They provide over 80% of the care for people with dementia, chronic illnesses and impairments. Despite evidence of their contributions and consequences of caregiving, support for FCGs has not been a health system priority. Education to prepare health providers to effectively identify, engage, assess, and support FCGs throughout the care trajectory is an innovative approach in addressing inconsistent system of supports for FCGs. We report on development and validation of the Caregiver-Centered Care Competency Framework to help with curricular design and subsequent evaluation of effectiveness of care providers working within healthcare settings to engage and support FCGs. We used a three round modified Delphi approach. An expert panel of 42 international, national, and provincial stakeholders agreed to participate. In the first 2 rounds, multi-level, interdisciplinary participants, rated the indicators in terms of importance and relevance. In the 3rd round consensus meeting, participants validated the six competency domains, including indicators in small group sessions. Thirty-four experts (81%) participated in the round 1, 36 (85.7%) in round 2, and 42 people (100%) in round 3. There was stable consensus across all three rounds, 96.07% of participants rated the indicators as essential or important (Round 1, 95.81%; Round 2, 94.15; Round 3, 98.23%). FCG research has been primarily focussed on educating FCGs to provide care. These competencies will shape the design of educational curricula and interdisciplinary training programs aimed at supporting the health and social care workforce to provide caregiver-centered care.

Sign in / Sign up

Export Citation Format

Share Document