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De Simone B, Chouillard E, Podda M, Pararas N, de Carvalho Duarte G, Fugazzola P, Birindelli A, Coccolini F, Polistena A, Sibilla MG, Kruger V, Fraga GP, Montori G, Russo E, Pintar T, Ansaloni L, Avenia N, Di Saverio S, Leppäniemi A, Lauretta A, Sartelli M, Puzziello A, Carcoforo P, Agnoletti V, Bissoni L, Isik A, Kluger Y, Moore EE, Romeo OM, Abu-Zidan FM, Beka SG, Weber DG, Tan ECTH, Paolillo C, Cui Y, Kim F, Picetti E, Di Carlo I, Toro A, Sganga G, Sganga F, Testini M, Di Meo G, Kirkpatrick AW, Marzi I, déAngelis N, Kelly MD, Wani I, Sakakushev B, Bala M, Bonavina L, Galante JM, Shelat VG, Cobianchi L, Mas FD, Pikoulis M, Damaskos D, Coimbra R, Dhesi J, Hoffman MR, Stahel PF, Maier RV, Litvin A, Latifi R, Biffl WL, Catena F. The 2023 WSES guidelines on the management of trauma in elderly and frail patients. World J Emerg Surg 2024; 19:18. [PMID: 38816766 PMCID: PMC11140935 DOI: 10.1186/s13017-024-00537-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 02/26/2024] [Indexed: 06/01/2024] Open
Abstract
BACKGROUND The trauma mortality rate is higher in the elderly compared with younger patients. Ageing is associated with physiological changes in multiple systems and correlated with frailty. Frailty is a risk factor for mortality in elderly trauma patients. We aim to provide evidence-based guidelines for the management of geriatric trauma patients to improve it and reduce futile procedures. METHODS Six working groups of expert acute care and trauma surgeons reviewed extensively the literature according to the topic and the PICO question assigned. Statements and recommendations were assessed according to the GRADE methodology and approved by a consensus of experts in the field at the 10th international congress of the WSES in 2023. RESULTS The management of elderly trauma patients requires knowledge of ageing physiology, a focused triage, including drug history, frailty assessment, nutritional status, and early activation of trauma protocol to improve outcomes. Acute trauma pain in the elderly has to be managed in a multimodal analgesic approach, to avoid side effects of opioid use. Antibiotic prophylaxis is recommended in penetrating (abdominal, thoracic) trauma, in severely burned and in open fractures elderly patients to decrease septic complications. Antibiotics are not recommended in blunt trauma in the absence of signs of sepsis and septic shock. Venous thromboembolism prophylaxis with LMWH or UFH should be administrated as soon as possible in high and moderate-risk elderly trauma patients according to the renal function, weight of the patient and bleeding risk. A palliative care team should be involved as soon as possible to discuss the end of life in a multidisciplinary approach considering the patient's directives, family feelings and representatives' desires, and all decisions should be shared. CONCLUSIONS The management of elderly trauma patients requires knowledge of ageing physiology, a focused triage based on assessing frailty and early activation of trauma protocol to improve outcomes. Geriatric Intensive Care Units are needed to care for elderly and frail trauma patients in a multidisciplinary approach to decrease mortality and improve outcomes.
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Affiliation(s)
- Belinda De Simone
- Department of Emergency Minimally Invasive Surgery, Academic Hospital of Villeneuve St Georges, Villeneuve St Georges, France.
- Department of General Minimally Invasive Surgery, Infermi Hospital, AUSL Romagna, Rimini, Italy.
- General Surgery Department, American Hospital of Paris, Paris, France.
| | - Elie Chouillard
- General Surgery Department, American Hospital of Paris, Paris, France
| | - Mauro Podda
- Department of Surgical Science, Unit of Emergency Surgery, University of Cagliari, Cagliari, Italy
| | - Nikolaos Pararas
- 3rd Department of Surgery, Attikon General Hospital, National and Kapodistrian University of Athens (NKUA), Athens, Greece
| | | | - Paola Fugazzola
- Unit of General Surgery I, IRCCS San Matteo Hospital of Pavia, University of Pavia, Pavia, Italy
| | | | | | - Andrea Polistena
- Department of Surgery, Policlinico Umberto I Roma, Sapienza University, Rome, Italy
| | - Maria Grazia Sibilla
- Department of Surgery, Unit of General Surgery, University Hospital of Ferrara and University of Ferrara, Ferrara, Italy
| | - Vitor Kruger
- Division of Trauma Surgery, School of Medical Sciences, University of Campinas, Campinas, Brazil
| | - Gustavo P Fraga
- Division of Trauma Surgery, School of Medical Sciences, University of Campinas, Campinas, Brazil
| | - Giulia Montori
- Unit of General and Emergency Surgery, Vittorio Veneto Hospital, Via C. Forlanini 71, 31029, Vittorio Veneto, TV, Italy
| | - Emanuele Russo
- Department of Anesthesia, Level I, Trauma Center, Bufalini Hospital, Cesena, Italy
| | - Tadeja Pintar
- UMC Ljubljana and Medical Faculty Ljubljana, Ljubljana, Slovenia
| | - Luca Ansaloni
- New Zealand Blood Service, Christchurch, New Zealand
| | - Nicola Avenia
- Endocrine Surgical Unit - University of Perugia, Terni, Italy
| | - Salomone Di Saverio
- General Surgery Unit, Madonna del Soccorso Hospital, AST Ascoli Piceno, San Benedetto del Tronto, Italy
| | - Ari Leppäniemi
- Division of Emergency Surgery, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Andrea Lauretta
- Department of Surgical Oncology, Centro Di Riferimento Oncologico Di Aviano IRCCS, Aviano, Italy
| | - Massimo Sartelli
- Department of General Surgery, Macerata Hospital, Macerata, Italy
| | - Alessandro Puzziello
- Dipartimento di Medicina, Chirurgia e Odontoiatria, Campus Universitario di Baronissi (SA) - Università di Salerno, AOU San Giovanni di Dio e Ruggi di Aragona, Salerno, Italy
| | - Paolo Carcoforo
- Department of Surgery, Unit of General Surgery, University Hospital of Ferrara and University of Ferrara, Ferrara, Italy
| | - Vanni Agnoletti
- Department of Anesthesia, Level I, Trauma Center, Bufalini Hospital, Cesena, Italy
| | - Luca Bissoni
- Department of Anesthesia, Level I, Trauma Center, Bufalini Hospital, Cesena, Italy
| | - Arda Isik
- Istanbul Medeniyet University, Istanbul, Turkey
| | - Yoram Kluger
- Department of General Surgery, Rambam Health Care Campus, Haifa, Israel
| | - Ernest E Moore
- Ernest E Moore Shock Trauma Center at Denver Health, University of Colorado, Denver, CO, USA
| | - Oreste Marco Romeo
- Bronson Methodist Hospital/Western Michigan University, Kalamazoo, MI, USA
| | - Fikri M Abu-Zidan
- Department of Surgery, College of Medicine and Health Sciences, United Arab Emirates University, Al‑Ain, United Arab Emirates
| | | | - Dieter G Weber
- Department of General Surgery, Royal Perth Hospital and The University of Western Australia, Perth, Australia
| | - Edward C T H Tan
- Department of Surgery, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Ciro Paolillo
- Emergency Department, Ospedale Civile Maggiore, Verona, Italy
| | - Yunfeng Cui
- Department of Surgery, Tianjin Nankai Hospital, Nankai Clinical School of Medicine, Tianjin Medical University, Tianjin, China
| | - Fernando Kim
- University of Colorado Anschutz Medical Campus, Denver, CO, 80246, USA
| | - Edoardo Picetti
- Department of Anesthesia and Intensive Care, Parma University Hospital, Parma, Italy
| | - Isidoro Di Carlo
- Department of Surgical Sciences and Advanced Technologies, General Surgery Cannizzaro Hospital, University of Catania, Catania, Italy
| | - Adriana Toro
- Department of Surgical Sciences and Advanced Technologies, General Surgery Cannizzaro Hospital, University of Catania, Catania, Italy
| | - Gabriele Sganga
- Fondazione Policlinico Universitario A. Gemelli IRCCS, Catholic University, Rome, Italy
| | - Federica Sganga
- Department of Geriatrics, Ospedale Sant'Anna, Ferrara, Italy
| | - Mario Testini
- Department of Precision and Regenerative Medicine and Ionian Area, Unit of Academic General Surgery, University of Bari "A. Moro", Bari, Italy
| | - Giovanna Di Meo
- Department of Precision and Regenerative Medicine and Ionian Area, Unit of Academic General Surgery, University of Bari "A. Moro", Bari, Italy
| | - Andrew W Kirkpatrick
- Departments of Surgery and Critical Care Medicine, University of Calgary, Foothills Medical Centre, Calgary, AB, Canada
| | - Ingo Marzi
- Department of Trauma, Hand and Reconstructive Surgery, University Hospital Frankfurt, Frankfurt, Germany
| | - Nicola déAngelis
- Unit of Colorectal and Digestive Surgery, DIGEST Department, Beaujon University Hospital, AP-HP, University of Paris Cité, Clichy, France
| | | | - Imtiaz Wani
- Department of Surgery, Government Gousia Hospital, DHS, Srinagar, India
| | - Boris Sakakushev
- General Surgery Department, Medical University, University Hospital St George, Plovdiv, Bulgaria
| | - Miklosh Bala
- Hadassah Medical Center and Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Luigi Bonavina
- Division of General Surgery, IRCCS Policlinico San Donato, University of Milan, Milan, Italy
| | - Joseph M Galante
- Division of Trauma and Acute Care Surgery, Department of Surgery, University of California Davis, Sacramento, CA, USA
| | - Vishal G Shelat
- Department of General Surgery, Tan Tock Seng Hospital, Novena, Singapore
| | - Lorenzo Cobianchi
- Unit of General Surgery I, IRCCS San Matteo Hospital of Pavia, University of Pavia, Pavia, Italy
- Collegium Medicum, University of Social Sciences, Łodz, Poland
| | - Francesca Dal Mas
- Department of Management, Ca' Foscari University of Venice, Venice, Italy
- Collegium Medicum, University of Social Sciences, Łodz, Poland
| | - Manos Pikoulis
- Department of Surgical Science, Unit of Emergency Surgery, University of Cagliari, Cagliari, Italy
| | | | - Raul Coimbra
- Riverside University Health System Medical Center, Riverside, CA, USA
| | - Jugdeep Dhesi
- Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Melissa Red Hoffman
- Department of Surgery, University of North Carolina, Surgical Palliative Care Society, Asheville, NC, USA
| | - Philip F Stahel
- Department of Surgery, Brody School of Medicine, East Carolina University, Greenville, NC, USA
| | - Ronald V Maier
- Harborview Medical Center, University of Washington, Seattle, WA, USA
| | - Andrey Litvin
- Department of Surgical Diseases No. 3, Gomel State Medical University, University Clinic, Gomel, Belarus
| | - Rifat Latifi
- University of Arizona, Tucson, AZ, USA
- Abrazo Health West Campus, Goodyear, Tucson, AZ, USA
| | - Walter L Biffl
- Division of Trauma/Acute Care Surgery, Scripps Clinic Medical Group, La Jolla, CA, USA
| | - Fausto Catena
- Department of General and Emergency Surgery, Bufalini Hospital-Level 1 Trauma Center, AUSL Romagna, Cesena, Italy
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Tavender E, Eapen N, Wang J, Rausa VC, Babl FE, Phillips N. Triage tools for detecting cervical spine injury in paediatric trauma patients. Cochrane Database Syst Rev 2024; 3:CD011686. [PMID: 38517085 PMCID: PMC10958760 DOI: 10.1002/14651858.cd011686.pub3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Abstract
BACKGROUND Paediatric cervical spine injury (CSI) after blunt trauma is rare but can have severe consequences. Clinical decision rules (CDRs) have been developed to guide clinical decision-making, minimise unnecessary tests and associated risks, whilst detecting all significant CSIs. Several validated CDRs are used to guide imaging decision-making in adults following blunt trauma and clinical criteria have been proposed as possible paediatric-specific CDRs. Little information is known about their accuracy. OBJECTIVES To assess and compare the diagnostic accuracy of CDRs or sets of clinical criteria, alone or in comparison with each other, for the evaluation of CSI following blunt trauma in children. SEARCH METHODS For this update, we searched CENTRAL, MEDLINE, Embase, and six other databases from 1 January 2015 to 13 December 2022. As we expanded the index test eligibility for this review update, we searched the excluded studies from the previous version of the review for eligibility. We contacted field experts to identify ongoing studies and studies potentially missed by the search. There were no language restrictions. SELECTION CRITERIA We included cross-sectional or cohort designs (retrospective and prospective) and randomised controlled trials that compared the diagnostic accuracy of any CDR or clinical criteria compared with a reference standard for the evaluation of paediatric CSI following blunt trauma. We included studies evaluating one CDR or comparing two or more CDRs (directly and indirectly). We considered X-ray, computed tomography (CT) or magnetic resonance imaging (MRI) of the cervical spine, and clinical clearance/follow-up as adequate reference standards. DATA COLLECTION AND ANALYSIS Two review authors independently screened titles and abstracts for relevance, and carried out eligibility, data extraction and quality assessment. A third review author arbitrated. We extracted data on study design, participant characteristics, inclusion/exclusion criteria, index test, target condition, reference standard and data (diagnostic two-by-two tables) and calculated and plotted sensitivity and specificity on forest plots for visual examination of variation in test accuracy. We assessed methodological quality using the Quality Assessment of Diagnostic Accuracy Studies Version 2 tool. We graded the certainty of the evidence using the GRADE approach. MAIN RESULTS We included five studies with 21,379 enrolled participants, published between 2001 and 2021. Prevalence of CSI ranged from 0.5% to 1.85%. Seven CDRs were evaluated. Three studies reported on direct comparisons of CDRs. One study (973 participants) directly compared the accuracy of three index tests with the sensitivities of NEXUS, Canadian C-Spine Rule and the PECARN retrospective criteria being 1.00 (95% confidence interval (CI) 0.48 to 1.00), 1.00 (95% CI 0.48 to 1.00) and 1.00 (95% CI 0.48 to 1.00), respectively. The specificities were 0.56 (95% CI 0.53 to 0.59), 0.52 (95% CI 0.49 to 0.55) and 0.32 (95% CI 0.29 to 0.35), respectively (moderate-certainty evidence). One study (4091 participants) compared the accuracy of the PECARN retrospective criteria with the Leonard de novo model; the sensitivities were 0.91 (95% CI 0.81 to 0.96) and 0.92 (95% CI 0.83 to 0.97), respectively. The specificities were 0.46 (95% CI 0.44 to 0.47) and 0.50 (95% CI 0.49 to 0.52) (moderate- and low-certainty evidence, respectively). One study (270 participants) compared the accuracy of two NICE (National Institute for Health and Care Excellence) head injury guidelines; the sensitivity of the CG56 guideline was 1.00 (95% CI 0.48 to 1.00) compared to 1.00 (95% CI 0.48 to 1.00) with the CG176 guideline. The specificities were 0.46 (95% CI 0.40 to 0.52) and 0.07 (95% CI 0.04 to 0.11), respectively (very low-certainty evidence). Two additional studies were indirect comparison studies. One study (3065 participants) tested the accuracy of the NEXUS criteria; the sensitivity was 1.00 (95% CI 0.88 to 1.00) and specificity was 0.20 (95% CI 0.18 to 0.21) (low-certainty evidence). One retrospective study (12,537 participants) evaluated the PEDSPINE criteria and found a sensitivity of 0.93 (95% CI 0.78 to 0.99) and specificity of 0.70 (95% CI 0.69 to 0.72) (very low-certainty evidence). We did not pool data within the broader CDR categories or investigate heterogeneity due to the small quantity of data and the clinical heterogeneity of studies. Two studies were at high risk of bias. We identified two studies that are awaiting classification pending further information and two ongoing studies. AUTHORS' CONCLUSIONS There is insufficient evidence to determine the diagnostic test accuracy of CDRs to detect CSIs in children following blunt trauma, particularly for children under eight years of age. Although most studies had a high sensitivity, this was often achieved at the expense of low specificity and should be interpreted with caution due to a small number of CSIs and wide CIs. Well-designed, large studies are required to evaluate the accuracy of CDRs for the cervical spine clearance in children following blunt trauma, ideally in direct comparison with each other.
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Affiliation(s)
- Emma Tavender
- Emergency Research, Murdoch Children's Research Institute, Melbourne, Australia
- Departments of Paediatrics and Critical Care, University of Melbourne, Melbourne, Australia
| | - Nitaa Eapen
- Emergency Research, Murdoch Children's Research Institute, Melbourne, Australia
| | - Junfeng Wang
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, Netherlands
| | - Vanessa C Rausa
- Emergency Research, Murdoch Children's Research Institute, Melbourne, Australia
| | - Franz E Babl
- Emergency Research, Murdoch Children's Research Institute, Melbourne, Australia
- Departments of Paediatrics and Critical Care, University of Melbourne, Melbourne, Australia
- Emergency Department, The Royal Children's Hospital, Melbourne, Australia
| | - Natalie Phillips
- Emergency Department, Queensland Children's Hospital, Children's Health Queensland, Brisbane, Australia
- Child Health Research Centre, University of Queensland, Brisbane, Australia
- Biomechanics and Spine Research Group, Centre for Children's Health Research, School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Brisbane, Australia
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Payne DL, Xu X, Faraji F, John K, Pradas KF, Bernard VV, Bangiyev L, Prasanna P. Automated Detection of Cervical Spinal Stenosis and Cord Compression via Vision Transformer and Rules-Based Classification. AJNR Am J Neuroradiol 2024; 45:ajnr.A8141. [PMID: 38360785 PMCID: PMC11288556 DOI: 10.3174/ajnr.a8141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 12/15/2023] [Indexed: 02/17/2024]
Abstract
BACKGROUND AND PURPOSE Cervical spinal cord compression, defined as spinal cord deformity and severe narrowing of the spinal canal in the cervical region, can lead to severe clinical consequences, including intractable pain, sensory disturbance, paralysis, and even death, and may require emergent intervention to prevent negative outcomes. Despite the critical nature of cord compression, no automated tool is available to alert clinical radiologists to the presence of such findings. This study aims to demonstrate the ability of a vision transformer (ViT) model for the accurate detection of cervical cord compression. MATERIALS AND METHODS A clinically diverse cohort of 142 cervical spine MRIs was identified, 34% of which were normal or had mild stenosis, 31% with moderate stenosis, and 35% with cord compression. Utilizing gradient-echo images, slices were labeled as no cord compression/mild stenosis, moderate stenosis, or severe stenosis/cord compression. Segmentation of the spinal canal was performed and confirmed by neuroradiology faculty. A pretrained ViT model was fine-tuned to predict section-level severity by using a train:validation:test split of 60:20:20. Each examination was assigned an overall severity based on the highest level of section severity, with an examination labeled as positive for cord compression if ≥1 section was predicted in the severe category. Additionally, 2 convolutional neural network (CNN) models (ResNet50, DenseNet121) were tested in the same manner. RESULTS The ViT model outperformed both CNN models at the section level, achieving section-level accuracy of 82%, compared with 72% and 78% for ResNet and DenseNet121, respectively. ViT patient-level classification achieved accuracy of 93%, sensitivity of 0.90, positive predictive value of 0.90, specificity of 0.95, and negative predictive value of 0.95. Receiver operating characteristic area under the curve was greater for ViT than either CNN. CONCLUSIONS This classification approach using a ViT model and rules-based classification accurately detects the presence of cervical spinal cord compression at the patient level. In this study, the ViT model outperformed both conventional CNN approaches at the section and patient levels. If implemented into the clinical setting, such a tool may streamline neuroradiology workflow, improving efficiency and consistency.
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Affiliation(s)
- David L Payne
- From the Department of Radiology (D.L.P., F.F., K.J., K.F.P., V.V.B., L.B.), Stony Brook University Hospital, Stony Brook, New York
- Department of Biomedical Informatics (D.L.P., X.X., F.F., K.J., P.P.), Stony Brook University, Stony Brook, New York
| | - Xuan Xu
- Department of Biomedical Informatics (D.L.P., X.X., F.F., K.J., P.P.), Stony Brook University, Stony Brook, New York
| | - Farshid Faraji
- From the Department of Radiology (D.L.P., F.F., K.J., K.F.P., V.V.B., L.B.), Stony Brook University Hospital, Stony Brook, New York
- Department of Biomedical Informatics (D.L.P., X.X., F.F., K.J., P.P.), Stony Brook University, Stony Brook, New York
| | - Kevin John
- From the Department of Radiology (D.L.P., F.F., K.J., K.F.P., V.V.B., L.B.), Stony Brook University Hospital, Stony Brook, New York
- Department of Biomedical Informatics (D.L.P., X.X., F.F., K.J., P.P.), Stony Brook University, Stony Brook, New York
| | - Katherine Ferra Pradas
- From the Department of Radiology (D.L.P., F.F., K.J., K.F.P., V.V.B., L.B.), Stony Brook University Hospital, Stony Brook, New York
| | - Vahni Vishala Bernard
- From the Department of Radiology (D.L.P., F.F., K.J., K.F.P., V.V.B., L.B.), Stony Brook University Hospital, Stony Brook, New York
| | - Lev Bangiyev
- From the Department of Radiology (D.L.P., F.F., K.J., K.F.P., V.V.B., L.B.), Stony Brook University Hospital, Stony Brook, New York
| | - Prateek Prasanna
- Department of Biomedical Informatics (D.L.P., X.X., F.F., K.J., P.P.), Stony Brook University, Stony Brook, New York
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4
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Lee GR, Flanders AE, Richards T, Kitamura F, Colak E, Lin HM, Ball RL, Talbott J, Prevedello LM. Performance of the Winning Algorithms of the RSNA 2022 Cervical Spine Fracture Detection Challenge. Radiol Artif Intell 2024; 6:e230256. [PMID: 38169426 PMCID: PMC10831508 DOI: 10.1148/ryai.230256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 11/24/2023] [Accepted: 12/12/2023] [Indexed: 01/05/2024]
Abstract
Purpose To evaluate and report the performance of the winning algorithms of the Radiological Society of North America Cervical Spine Fracture AI Challenge. Materials and Methods The competition was open to the public on Kaggle from July 28 to October 27, 2022. A sample of 3112 CT scans with and without cervical spine fractures (CSFx) were assembled from multiple sites (12 institutions across six continents) and prepared for the competition. The test set had 1093 scans (private test set: n = 789; mean age, 53.40 years ± 22.86 [SD]; 509 males; public test set: n = 304; mean age, 52.51 years ± 20.73; 189 males) and 847 fractures. The eight top-performing artificial intelligence (AI) algorithms were retrospectively evaluated, and the area under the receiver operating characteristic curve (AUC) value, F1 score, sensitivity, and specificity were calculated. Results A total of 1108 contestants composing 883 teams worldwide participated in the competition. The top eight AI models showed high performance, with a mean AUC value of 0.96 (95% CI: 0.95, 0.96), mean F1 score of 90% (95% CI: 90%, 91%), mean sensitivity of 88% (95% Cl: 86%, 90%), and mean specificity of 94% (95% CI: 93%, 96%). The highest values reported for previous models were an AUC of 0.85, F1 score of 81%, sensitivity of 76%, and specificity of 97%. Conclusion The competition successfully facilitated the development of AI models that could detect and localize CSFx on CT scans with high performance outcomes, which appear to exceed known values of previously reported models. Further study is needed to evaluate the generalizability of these models in a clinical environment. Keywords: Cervical Spine, Fracture Detection, Machine Learning, Artificial Intelligence Algorithms, CT, Head/Neck Supplemental material is available for this article. © RSNA, 2024.
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Affiliation(s)
- Ghee Rye Lee
- From the Department of Radiology, Ohio State University Wexner
Medical Center, 395 W 12th Ave, Columbus, OH 43210 (G.R.L., L.M.P.); Department
of Radiology, Thomas Jefferson University, Philadelphia, Pa (A.E.F.); Department
of Radiology, University of Utah School of Medicine, Salt Lake City, Utah
(T.R.); Dasalnova, Diagnósticos da América, São Paulo,
Brazil (F.K.); Department of Diagnostic Imaging, Universidade Federal de
São Paulo, São Paulo, Brazil (F.K.); Department of Medical
Imaging, Unity Health Toronto, University of Toronto, Toronto, Canada (E.C.,
H.M.L.); The Jackson Laboratory, Bar Harbor, Maine (R.L.B.); and Department of
Radiology and Biomedical Imaging, University of California San Francisco, San
Francisco, Calif (J.T.)
| | - Adam E. Flanders
- From the Department of Radiology, Ohio State University Wexner
Medical Center, 395 W 12th Ave, Columbus, OH 43210 (G.R.L., L.M.P.); Department
of Radiology, Thomas Jefferson University, Philadelphia, Pa (A.E.F.); Department
of Radiology, University of Utah School of Medicine, Salt Lake City, Utah
(T.R.); Dasalnova, Diagnósticos da América, São Paulo,
Brazil (F.K.); Department of Diagnostic Imaging, Universidade Federal de
São Paulo, São Paulo, Brazil (F.K.); Department of Medical
Imaging, Unity Health Toronto, University of Toronto, Toronto, Canada (E.C.,
H.M.L.); The Jackson Laboratory, Bar Harbor, Maine (R.L.B.); and Department of
Radiology and Biomedical Imaging, University of California San Francisco, San
Francisco, Calif (J.T.)
| | - Tyler Richards
- From the Department of Radiology, Ohio State University Wexner
Medical Center, 395 W 12th Ave, Columbus, OH 43210 (G.R.L., L.M.P.); Department
of Radiology, Thomas Jefferson University, Philadelphia, Pa (A.E.F.); Department
of Radiology, University of Utah School of Medicine, Salt Lake City, Utah
(T.R.); Dasalnova, Diagnósticos da América, São Paulo,
Brazil (F.K.); Department of Diagnostic Imaging, Universidade Federal de
São Paulo, São Paulo, Brazil (F.K.); Department of Medical
Imaging, Unity Health Toronto, University of Toronto, Toronto, Canada (E.C.,
H.M.L.); The Jackson Laboratory, Bar Harbor, Maine (R.L.B.); and Department of
Radiology and Biomedical Imaging, University of California San Francisco, San
Francisco, Calif (J.T.)
| | - Felipe Kitamura
- From the Department of Radiology, Ohio State University Wexner
Medical Center, 395 W 12th Ave, Columbus, OH 43210 (G.R.L., L.M.P.); Department
of Radiology, Thomas Jefferson University, Philadelphia, Pa (A.E.F.); Department
of Radiology, University of Utah School of Medicine, Salt Lake City, Utah
(T.R.); Dasalnova, Diagnósticos da América, São Paulo,
Brazil (F.K.); Department of Diagnostic Imaging, Universidade Federal de
São Paulo, São Paulo, Brazil (F.K.); Department of Medical
Imaging, Unity Health Toronto, University of Toronto, Toronto, Canada (E.C.,
H.M.L.); The Jackson Laboratory, Bar Harbor, Maine (R.L.B.); and Department of
Radiology and Biomedical Imaging, University of California San Francisco, San
Francisco, Calif (J.T.)
| | - Errol Colak
- From the Department of Radiology, Ohio State University Wexner
Medical Center, 395 W 12th Ave, Columbus, OH 43210 (G.R.L., L.M.P.); Department
of Radiology, Thomas Jefferson University, Philadelphia, Pa (A.E.F.); Department
of Radiology, University of Utah School of Medicine, Salt Lake City, Utah
(T.R.); Dasalnova, Diagnósticos da América, São Paulo,
Brazil (F.K.); Department of Diagnostic Imaging, Universidade Federal de
São Paulo, São Paulo, Brazil (F.K.); Department of Medical
Imaging, Unity Health Toronto, University of Toronto, Toronto, Canada (E.C.,
H.M.L.); The Jackson Laboratory, Bar Harbor, Maine (R.L.B.); and Department of
Radiology and Biomedical Imaging, University of California San Francisco, San
Francisco, Calif (J.T.)
| | - Hui Ming Lin
- From the Department of Radiology, Ohio State University Wexner
Medical Center, 395 W 12th Ave, Columbus, OH 43210 (G.R.L., L.M.P.); Department
of Radiology, Thomas Jefferson University, Philadelphia, Pa (A.E.F.); Department
of Radiology, University of Utah School of Medicine, Salt Lake City, Utah
(T.R.); Dasalnova, Diagnósticos da América, São Paulo,
Brazil (F.K.); Department of Diagnostic Imaging, Universidade Federal de
São Paulo, São Paulo, Brazil (F.K.); Department of Medical
Imaging, Unity Health Toronto, University of Toronto, Toronto, Canada (E.C.,
H.M.L.); The Jackson Laboratory, Bar Harbor, Maine (R.L.B.); and Department of
Radiology and Biomedical Imaging, University of California San Francisco, San
Francisco, Calif (J.T.)
| | - Robyn L. Ball
- From the Department of Radiology, Ohio State University Wexner
Medical Center, 395 W 12th Ave, Columbus, OH 43210 (G.R.L., L.M.P.); Department
of Radiology, Thomas Jefferson University, Philadelphia, Pa (A.E.F.); Department
of Radiology, University of Utah School of Medicine, Salt Lake City, Utah
(T.R.); Dasalnova, Diagnósticos da América, São Paulo,
Brazil (F.K.); Department of Diagnostic Imaging, Universidade Federal de
São Paulo, São Paulo, Brazil (F.K.); Department of Medical
Imaging, Unity Health Toronto, University of Toronto, Toronto, Canada (E.C.,
H.M.L.); The Jackson Laboratory, Bar Harbor, Maine (R.L.B.); and Department of
Radiology and Biomedical Imaging, University of California San Francisco, San
Francisco, Calif (J.T.)
| | - Jason Talbott
- From the Department of Radiology, Ohio State University Wexner
Medical Center, 395 W 12th Ave, Columbus, OH 43210 (G.R.L., L.M.P.); Department
of Radiology, Thomas Jefferson University, Philadelphia, Pa (A.E.F.); Department
of Radiology, University of Utah School of Medicine, Salt Lake City, Utah
(T.R.); Dasalnova, Diagnósticos da América, São Paulo,
Brazil (F.K.); Department of Diagnostic Imaging, Universidade Federal de
São Paulo, São Paulo, Brazil (F.K.); Department of Medical
Imaging, Unity Health Toronto, University of Toronto, Toronto, Canada (E.C.,
H.M.L.); The Jackson Laboratory, Bar Harbor, Maine (R.L.B.); and Department of
Radiology and Biomedical Imaging, University of California San Francisco, San
Francisco, Calif (J.T.)
| | - Luciano M. Prevedello
- From the Department of Radiology, Ohio State University Wexner
Medical Center, 395 W 12th Ave, Columbus, OH 43210 (G.R.L., L.M.P.); Department
of Radiology, Thomas Jefferson University, Philadelphia, Pa (A.E.F.); Department
of Radiology, University of Utah School of Medicine, Salt Lake City, Utah
(T.R.); Dasalnova, Diagnósticos da América, São Paulo,
Brazil (F.K.); Department of Diagnostic Imaging, Universidade Federal de
São Paulo, São Paulo, Brazil (F.K.); Department of Medical
Imaging, Unity Health Toronto, University of Toronto, Toronto, Canada (E.C.,
H.M.L.); The Jackson Laboratory, Bar Harbor, Maine (R.L.B.); and Department of
Radiology and Biomedical Imaging, University of California San Francisco, San
Francisco, Calif (J.T.)
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5
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Riazi Esfahani P, Guirgus M, Maalouf M, Mazboudi P, Reddy AJ, Sarsour RO, Hassan SS. Development of a Machine Learning-Based Model for Accurate Detection and Classification of Cervical Spine Fractures Using CT Imaging. Cureus 2023; 15:e47328. [PMID: 38021776 PMCID: PMC10657145 DOI: 10.7759/cureus.47328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/09/2023] [Indexed: 12/01/2023] Open
Abstract
Cervical spine fractures represent a significant healthcare challenge, necessitating accurate detection for appropriate management and improved patient outcomes. This study aims to develop a machine learning-based model utilizing a computed tomography (CT) image dataset to detect and classify cervical spine fractures. Leveraging a large dataset of 4,050 CT images obtained from the Radiological Society of North America (RSNA) Cervical Spine Fracture dataset, we evaluate the potential of machine learning and deep learning algorithms in achieving accurate and reliable cervical spine fracture detection. The model demonstrates outstanding performance, achieving an average precision of 1 and 100% precision, recall, sensitivity, specificity, and accuracy values. These exceptional results highlight the potential of machine learning algorithms to enhance clinical decision-making and facilitate prompt treatment initiation for cervical spine fractures. However, further research and validation efforts are warranted to assess the model's generalizability across diverse populations and real-world clinical settings, ultimately contributing to improved patient outcomes in cervical spine fracture cases.
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Affiliation(s)
| | - Monica Guirgus
- Medicine, California University of Science and Medicine, Colton, USA
| | - Maya Maalouf
- Medicine, California University of Science and Medicine, Colton, USA
| | - Pasha Mazboudi
- Medicine, California University of Science and Medicine, Colton, USA
| | - Akshay J Reddy
- Medicine, California University of Science and Medicine, Colton, USA
| | - Reem O Sarsour
- Medicine, California University of Science and Medicine, Colton, USA
| | - Sherif S Hassan
- Anatomy, Faculty of Medicine, Cairo University, Cairo, EGY
- Medical Education, Anatomy, & Neuroanatomy, California University of Science and Medicine, Colton, USA
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6
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Mehkri Y, Chakravarti S, Sharaf R, Reddy A, Fakhry J, Kuo CC, Hernandez J, Panther E, Tishad A, Gendreau J, Brown N, Rahmathulla G. The 5-Factor Modified Frailty Index Score Predicts Return to the Operating Room for Patients Undergoing Posterior Spinal Fusion for Traumatic Spine Injury. World Neurosurg 2023; 175:e1186-e1190. [PMID: 37121507 DOI: 10.1016/j.wneu.2023.04.095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 04/20/2023] [Accepted: 04/21/2023] [Indexed: 05/02/2023]
Abstract
OBJECTIVE Within the trauma spine surgery literature, the effect of patient frailty on postoperative outcomes for posterior spinal fusion (PSF) remains clear. In this study, the authors quantified the influence of the 5-factor modified frailty index (mFI-5) score on hospital length of stay, diagnosis of a postoperative infection, 30-day readmission, and 90-day return to operating room (OR). METHODS The authors retrospectively reviewed the records of all patients with traumatic spine injury undergoing PSF by a single surgeon at our institution from 2016 to 2021. Data were extracted using manual chart review and the mFI-5 score was calculated using data on comorbidities. Bivariate (Mann-Whitney U test and Fisher exact test) and multivariate regressions (linear and logistic) revealed whether there was an independent relationship between patient frailty and postoperative outcomes. RESULTS The patient cohort included 263 patients (52.00 ± 19.04), 67 (25.5) were classified as frail, defined as having an mFI-5 score ≥2. Patients who were classified as frail were significantly more likely to have diabetes (odds ratio = 21.53; P < 0.001) and active cancer (odds ratio = 10.03; P = 0.004). Patients with mFI-5 scores ≥2 were also significantly older (P < 0.001) and had higher body mass index (BMI) (P = 0.007). Patients with mFI-5 scores >2 were more likely to return to the OR (odds ratio = 2.43; P = 0.037) on bivariate analysis. When controlling for demographics and clinical characteristics, mFI-5 score independently predicted return to OR (odds ratio = 1.294; P = 0.041). CONCLUSIONS Patient frailty independently predicted a return to OR in patients undergoing PSF for traumatic spine injury. Future studies can investigate methods for patient risk optimization to reduce morbidity and mortality.
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Affiliation(s)
- Yusuf Mehkri
- Department of Neurosurgery, University of Florida College of Medicine, Gainesville, Florida, USA.
| | - Sachiv Chakravarti
- Department of Neurosurgery, Johns Hopkins University, Baltimore, Maryland, USA
| | - Ramy Sharaf
- Department of Neurosurgery, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Akshay Reddy
- Department of Neurosurgery, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Jonathan Fakhry
- Department of Neurosurgery, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Cathleen C Kuo
- Department of Neurosurgery, Jacobs School of Medicine and Biomedical Sciences at University at Buffalo, Buffalo, New York, USA
| | - Jairo Hernandez
- Department of Neurosurgery, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Eric Panther
- Department of Neurosurgery, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Abtahi Tishad
- Department of Neurosurgery, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Julian Gendreau
- Department of Biomedical Engineering, Johns Hopkins Whiting School of Engineering, Baltimore, Maryland, USA
| | - Nolan Brown
- Department of Neurosurgery, University of California Irvine, Orange, California, USA
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7
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Khan MA, Jennings JW, Baker JC, Smolock AR, Shah LM, Pinchot JW, Wessell DE, Kim CY, Lenchik L, Parsons MS, Huhnke G, Shek-Man Lo S, Lu Y, Potter C, Reitman C, Sahgal A, Sharma A, Yalla NM, Beaman FD, Kapoor BS, Burns J. ACR Appropriateness Criteria® Management of Vertebral Compression Fractures: 2022 Update. J Am Coll Radiol 2023; 20:S102-S124. [PMID: 37236738 DOI: 10.1016/j.jacr.2023.02.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 02/27/2023] [Indexed: 05/28/2023]
Abstract
Vertebral compression fractures (VCFs) can have a variety of etiologies, including trauma, osteoporosis, or neoplastic infiltration. Osteoporosis related fractures are the most common cause of VCFs and have a high prevalence among all postmenopausal women with increasing incidence in similarly aged men. Trauma is the most common etiology in those >50 years of age. However, many cancers, such as breast, prostate, thyroid, and lung, have a propensity to metastasize to bone, which can lead to malignant VCFs. Indeed, the spine is third most common site of metastases after lung and liver. In addition, primary tumors of bone and lymphoproliferative diseases such as lymphoma and multiple myeloma can be the cause of malignant VCFs. Although patient clinical history could help raising suspicion for a particular disorder, the characterization of VCFs is usually referred to diagnostic imaging. The ACR Appropriateness Criteria are evidence-based guidelines for specific clinical conditions that are reviewed annually by a multidisciplinary expert panel. The guideline development and revision include an extensive analysis of current medical literature from peer reviewed journals and the application of well-established methodologies (RAND/UCLA Appropriateness Method and Grading of Recommendations Assessment, Development, and Evaluation or GRADE) to rate the appropriateness of imaging and treatment procedures for specific clinical scenarios. In those instances in which evidence is lacking or equivocal, expert opinion may supplement the available evidence to recommend imaging or treatment.
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Affiliation(s)
- Majid A Khan
- Thomas Jefferson University Hospital, Philadelphia, Pennsylvania.
| | - Jack W Jennings
- Research Author, Washington University, Saint Louis, Missouri
| | - Jonathan C Baker
- Mallinckrodt Institute of Radiology Washington University School of Medicine, St. Louis, Missouri
| | - Amanda R Smolock
- Froedtert & The Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Lubdha M Shah
- Panel Chair, University of Utah, Salt Lake City, Utah
| | | | | | - Charles Y Kim
- Panel Vice-Chair, Duke University Medical Center, Durham, North Carolina
| | - Leon Lenchik
- Panel Vice-Chair, Wake Forest University School of Medicine, Winston-Salem, North Carolina
| | - Matthew S Parsons
- Panel Vice-Chair, Mallinckrodt Institute of Radiology, St. Louis, Missouri
| | - Gina Huhnke
- Deaconess Hospital, Evansville, Indiana American College of Emergency Physicians
| | - Simon Shek-Man Lo
- University of Washington School of Medicine, Seattle, Washington Commission on Radiation Oncology
| | - Yi Lu
- Brigham & Women's Hospital & Harvard Medical School, Boston, Massachusetts American Association of Neurological Surgeons/Congress of Neurological Surgeons
| | - Christopher Potter
- Brigham & Women's Hospital, Boston, Massachusetts Committee on Emergency Radiology-GSER
| | - Charles Reitman
- Medical University of South Carolina, Charleston, South Carolina North American Spine Society
| | - Arjun Sahgal
- Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada Commission on Radiation Oncology
| | - Akash Sharma
- Mayo Clinic, Jacksonville, Florida Commission on Nuclear Medicine and Molecular Imaging
| | - Naga M Yalla
- Mallinckrodt Institute of Radiology, Saint Louis, Missouri, Primary care physician
| | | | | | - Judah Burns
- Specialty Chair, Montefiore Medical Center, Bronx, New York
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8
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Wendt K, Nau C, Jug M, Pape HC, Kdolsky R, Thomas S, Bloemers F, Komadina R. ESTES recommendation on thoracolumbar spine fractures : January 2023. Eur J Trauma Emerg Surg 2023:10.1007/s00068-023-02247-3. [PMID: 37052627 DOI: 10.1007/s00068-023-02247-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 02/08/2023] [Indexed: 04/14/2023]
Affiliation(s)
- Klaus Wendt
- University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
| | - Christoph Nau
- University Hospital Frankfurt, Goethe University, Frankfurt, Germany
| | - Marko Jug
- University Medical Centre Ljubljana, University of Ljubljana, Ljubljana, Slovenia
| | | | - Richard Kdolsky
- University Clinic for Trauma Surgery, Medical University of Vienna, Vienna, Austria
| | | | - Frank Bloemers
- Amsterdam University Medical Centre, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Radko Komadina
- Medical Faculty, University of Ljubljana, Ljubljana, Slovenia
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9
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Cervical spine injury: clinical and medico-legal overview. LA RADIOLOGIA MEDICA 2023; 128:103-112. [PMID: 36719553 PMCID: PMC9931800 DOI: 10.1007/s11547-022-01578-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 12/07/2022] [Indexed: 02/01/2023]
Abstract
Spinal trauma is an important cause of disability worldwide. Injury to the cervical spine (CS) occurs frequently after major trauma. 5-10% of patients with blunt trauma have a cervical spine injury. The cervical spine accounts for ~ 50% of all spinal injuries. Determination of CS stability is a common challenge in the acute care setting of patients with trauma. Several issues, indeed, are of particular concern: who needs CS imaging; what imaging should be obtained; when should computed tomography (CT), magnetic resonance imaging (MRI), or flexion/extension (F/E) radiographs be obtained; and how is significant ligamentous injury excluded in the comatose patient. CT and MRI both have roles to play. This article aims to present the different imaging to frame techniques to be used with greater precision in the acute event also for the purpose of planning the next therapeutic process. An overview of the applicability of the same methods in forensic pathology is also provided highlighting possible future biomarker to ease in diagnosis of acute TBI.
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10
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Is magnetic resonance imaging needed for decision making diagnosis and treatment of thoracic and lumbar vertebral fractures? EUROPEAN JOURNAL OF ORTHOPAEDIC SURGERY & TRAUMATOLOGY : ORTHOPEDIE TRAUMATOLOGIE 2023; 33:107-115. [PMID: 34817659 DOI: 10.1007/s00590-021-03165-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Accepted: 11/04/2021] [Indexed: 01/07/2023]
Abstract
PURPOSE The radiological examination including plain radiography, CT and MRI are critical to assess the severity of the instability, to diagnose the fracture type and to select the appropriate treatment strategy for the thoracic and lumbar vertebral fractures. The aim of this prospective observational study was to investigate the effect of magnetic resonance imaging (MRI) on decision making for the diagnosis and treatment of acute thoracic and lumbar vertebral fractures. METHODS Consecutive 180 patients with acute thoracic and/or lumbar vertebral fractures were included in the study. The fracture pattern was evaluated by using initial radiographs, computed tomography (CT) and MRI within 24 h of trauma. Fractures were classified according to AO classification before and after MRI. TLICS classification was also used to decide treatment plan. MRI findings were compared to surgical findings in the surgically treated patients. RESULTS A significant moderate agreement was found between Xray + CT and post-MRI classifications for all fracture types (Kappa = 0.511; p < 0.001). In 101 patients with new findings on MRI, a significant moderate correlation was observed between Xray + CT and post-MRI classifications in the fracture re-classification (Kappa = 0.441, p < 0.001). There was a significant change in the treatment plan of patients with new findings on MRI according to Xray + CT (p < 0.0001). After MRI evaluation, the treatment plan changed in favor of surgery in 33.9% of patients who were scheduled for conservative treatment according to Xray + CT (p < 0.0001). CONCLUSION Since MRI assessment of acute thoracic and/or lumbar injuries has led to a remarkable treatment change decision that confirms intraoperative findings of the patients who were decided to undergo surgery, MRI should be obtained in thoracic and lumbar vertebral fractures, regardless of the CT and plain radiographic findings. LEVEL OF EVIDENCE Level II, prospective observational study.
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11
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Cloney MB, Kim HS, Dahdaleh NS. Risk Factors for Fracture Nonunion and Transverse Atlantal Ligament Injury After Isolated Atlas Fractures: A Case Series of 97 Patients. Neurosurgery 2022; 91:900-905. [PMID: 36083183 DOI: 10.1227/neu.0000000000002124] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 06/28/2022] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND The management of atlas fractures is controversial and hinges on the integrity of transverse atlantal ligament (TAL). OBJECTIVE To identify risk factors for atlas fracture nonunion, with and without TAL injury. METHODS All isolated, traumatic atlas fractures treated at our institution between 1999 and 2016 were analyzed. Multivariable logistic regression was used to identify variables associated with TAL injury confirmed on MRI, occult TAL injury seen on MRI but not suspected on computed tomography (CT), and with fracture nonunion on follow-up CT at 12 weeks. RESULTS Lateral mass displacement (LMD) ≥ 7 mm had a 48.2% sensitivity, 98.3% specificity, and 82.6% accuracy for identifying TAL injury. MRI-confirmed TAL injury was independently associated with LMD > 7 mm ( P = .004) and atlanto-dental interval ( P = .039), and occult TAL injury was associated with atlanto-dental interval ( P = .019). Halo immobilization was associated with having a Gehweiler type 3 fracture ( P = .020), a high-risk injury mechanism ( P = .023), and an 18.1% complication rate. Thirteen patients with TAL injury on MRI and/or LMD ≥ 7 mm were treated with a cervical collar only, and 11 patients (84.6%) healed at 12 weeks. Nonunion rates at 12 weeks were equivalent between halo (11.1%) and cervical collar (12.5%). Only age independently predicted nonunion at 12 weeks ( P = .026). CONCLUSION LMD > 7 mm on CT is not sensitive for TAL injury. Some atlas fractures with TAL injury can be managed with a cervical collar. Nonunion rates are not different between halo immobilization and cervical collar, but a strong selection bias precludes directly comparing the efficacy of these modalities. Age independently predicts nonunion.
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Affiliation(s)
- Michael Brendan Cloney
- Department of Neurological Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Hyun Su Kim
- Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Nader S Dahdaleh
- Department of Neurological Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
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12
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Beschloss AM, Taghlabi KM, Rodriguez DA, Lee N, Gupta S, Bondar K, Lombardi JM, Varthi A, Faraji A, Saifi C. Demographic and economic trends in vertebral fracture surgeries throughout the United States. NORTH AMERICAN SPINE SOCIETY JOURNAL 2022; 12:100175. [PMID: 36281323 PMCID: PMC9587355 DOI: 10.1016/j.xnsj.2022.100175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 09/26/2022] [Accepted: 09/30/2022] [Indexed: 11/23/2022]
Abstract
Background Vertebral fractures, frequently resulting from high-impact trauma to the spine, are an increasingly relevant public health concern. Little is known about the long-term economic and demographic trends affecting patients undergoing surgery for such fractures. This study examines national economic and demographic trends in vertebral fracture surgery in the United States to improve value-based care and health care utilization. Methods The National Inpatient Sample (NIS) was queried for patients who underwent surgical treatment of a vertebral fracture (ICD-9-CM-3.53) (excluding kyphoplasty and vertebroplasty) between 1993 and 2015. Demographic data included patient age, sex, income, insurance type, hospital size, and location. Economic data including aggregate charge, aggregate cost, hospital cost, and hospital charge were analyzed. Results The number of vertebral fracture surgeries, excluding kyphoplasty and vertebroplasty, increased 461% from 3,331 in 1993 to 18,675 in 2014, while inpatient mortality increased from 1.9% to 2.5%.The mean age of patients undergoing vertebral fracture surgeries increased from 42 in 1993 to 53 in 2015. The aggregate cost of surgery increased from $189,164,625 in 2001 to $1,060,866,580 in 2014, a 461% increase. Conclusions The significant increase in vertebral fracture surgeries between 1993 and 2014 may reflect an increased rate of fractures, more surgeons electing to treat fractures surgically, or a combination of both. The increasing rate of vertebral fracture surgery, coupled with increasing hospital costs and mortality, signifies that the treatment of vertebral fractures remains a challenging issue in healthcare. Further research is necessary to determine the underlying cause of both the increase in surgeries and the increasing mortality rate.
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Affiliation(s)
- Alexander M. Beschloss
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, The Spine Center at Pennsylvania Hospital, University of Pennsylvania Hospital System, 801 Spruce Street, Philadelphia, PA 19107, United States
| | - Khaled M. Taghlabi
- Department of Neurosurgery, Houston Methodist Hospital, 6670 Bertner Avenue, Houston, TX 77030, United States
| | - Daniel A. Rodriguez
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, The Spine Center at Pennsylvania Hospital, University of Pennsylvania Hospital System, 801 Spruce Street, Philadelphia, PA 19107, United States
| | - Nathan Lee
- Department of Orthopaedic Surgery, Columbia University Medical Center, The Spine Hospital at New York-Presbyterian, 5141 Broadway, New York, NY 10034, United States
| | - Sachin Gupta
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, The Spine Center at Pennsylvania Hospital, University of Pennsylvania Hospital System, 801 Spruce Street, Philadelphia, PA 19107, United States
| | - Kevin Bondar
- Department of Orthopedic Surgery and Sports Medicine, Houston Methodist Hospital, 6670 Bertner Avenue, Houston, TX 77030, United States
| | - Joseph M. Lombardi
- Department of Orthopaedic Surgery, Columbia University Medical Center, The Spine Hospital at New York-Presbyterian, 5141 Broadway, New York, NY 10034, United States
| | - Arya Varthi
- Department of Orthopaedics and Rehabilitation, Yale School of Medicine, 1 Long Wharf Dr 6th Floor, New Haven, CT 06511, United States
| | - Amir Faraji
- Department of Neurosurgery, Houston Methodist Hospital, 6670 Bertner Avenue, Houston, TX 77030, United States
| | - Comron Saifi
- Department of Orthopedic Surgery and Sports Medicine, Houston Methodist Hospital, 6670 Bertner Avenue, Houston, TX 77030, United States
- Corresponding author.
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13
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Lambrechts MJ, D’Antonio ND, Karamian BA, Kanhere AP, Dees A, Wiafe BM, Canseco JA, Woods BI, Kaye ID, Rihn J, Kurd M, Hilibrand AS, Kepler CK, Vaccaro AR, Schroeder GD. Does displacement of cervical and thoracolumbar dislocation-translation injuries predict spinal cord injury or recovery? J Neurosurg Spine 2022; 37:821-827. [PMID: 35962960 DOI: 10.3171/2022.6.spine22435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 06/28/2022] [Indexed: 11/06/2022]
Abstract
OBJECTIVE For patients with cervical and thoracolumbar AO Spine type C injuries, the authors sought to 1) identify whether preoperative vertebral column translation is predictive of a complete spinal cord injury (SCI) and 2) identify whether preoperative or postoperative vertebral column translation is predictive of neurological improvement after surgical decompression. METHODS All patients who underwent operative treatment for cervical and thoracolumbar AO Spine type C injuries at the authors' institution between 2006 and 2021 were identified. CT and MRI were utilized to measure vertebral column translation in millimeters prior to and after surgery. A receiver operating characteristic (ROC) curve was generated to predict the probability of sustaining a complete SCI on the basis of the amount of preoperative vertebral column translation. ROC curves were then used to predict the probability of neurological recovery on the basis of preoperative and postoperative vertebral column translation. RESULTS ROC analysis of 67 patients identified 6.10 mm (area under the curve [AUC] 0.77, 95% CI 0.650-0.892) of preoperative vertebral column translation as predictive of complete SCI. Additionally, ROC curve analysis found that 10.4 mm (AUC 0.654, 95% CI 0.421-0.887) of preoperative vertebral column translation was strongly predictive of no postoperative neurological improvement. Residual postoperative vertebral column translation after fracture reduction and instrumentation had no predictive value on neurological recovery (AUC 0.408, 95% CI 0.195-0.622). CONCLUSIONS For patients with cervical and thoracolumbar AO Spine type C injuries, the amount of preoperative vertebral column translation is highly predictive of complete SCI and the likelihood of postoperative neurological recovery.
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Affiliation(s)
- Mark J. Lambrechts
- Department of Orthopaedic Surgery, Rothman Orthopaedic Institute at Thomas Jefferson University Hospital, Philadelphia, Pennsylvania
| | - Nicholas D. D’Antonio
- Department of Orthopaedic Surgery, Rothman Orthopaedic Institute at Thomas Jefferson University Hospital, Philadelphia, Pennsylvania
| | - Brian A. Karamian
- Department of Orthopaedic Surgery, Rothman Orthopaedic Institute at Thomas Jefferson University Hospital, Philadelphia, Pennsylvania
| | - Arun P. Kanhere
- Department of Orthopaedic Surgery, Rothman Orthopaedic Institute at Thomas Jefferson University Hospital, Philadelphia, Pennsylvania
| | - Azra Dees
- Department of Orthopaedic Surgery, Rothman Orthopaedic Institute at Thomas Jefferson University Hospital, Philadelphia, Pennsylvania
| | - Bright M. Wiafe
- Department of Orthopaedic Surgery, Rothman Orthopaedic Institute at Thomas Jefferson University Hospital, Philadelphia, Pennsylvania
| | - Jose A. Canseco
- Department of Orthopaedic Surgery, Rothman Orthopaedic Institute at Thomas Jefferson University Hospital, Philadelphia, Pennsylvania
| | - Barrett I. Woods
- Department of Orthopaedic Surgery, Rothman Orthopaedic Institute at Thomas Jefferson University Hospital, Philadelphia, Pennsylvania
| | - I. David Kaye
- Department of Orthopaedic Surgery, Rothman Orthopaedic Institute at Thomas Jefferson University Hospital, Philadelphia, Pennsylvania
| | - Jeffrey Rihn
- Department of Orthopaedic Surgery, Rothman Orthopaedic Institute at Thomas Jefferson University Hospital, Philadelphia, Pennsylvania
| | - Mark Kurd
- Department of Orthopaedic Surgery, Rothman Orthopaedic Institute at Thomas Jefferson University Hospital, Philadelphia, Pennsylvania
| | - Alan S. Hilibrand
- Department of Orthopaedic Surgery, Rothman Orthopaedic Institute at Thomas Jefferson University Hospital, Philadelphia, Pennsylvania
| | - Christopher K. Kepler
- Department of Orthopaedic Surgery, Rothman Orthopaedic Institute at Thomas Jefferson University Hospital, Philadelphia, Pennsylvania
| | - Alexander R. Vaccaro
- Department of Orthopaedic Surgery, Rothman Orthopaedic Institute at Thomas Jefferson University Hospital, Philadelphia, Pennsylvania
| | - Gregory D. Schroeder
- Department of Orthopaedic Surgery, Rothman Orthopaedic Institute at Thomas Jefferson University Hospital, Philadelphia, Pennsylvania
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14
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Ornelas-Dorian C, Jhun P. A Case Report of a Man with Burning Arm and Leg Weakness. JOURNAL OF EDUCATION & TEACHING IN EMERGENCY MEDICINE 2022; 7:V4-V6. [PMID: 37465137 PMCID: PMC10332663 DOI: 10.21980/j8v659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 08/16/2022] [Indexed: 07/20/2023]
Abstract
A 44-year-old male presented with sudden onset of severe left arm burning dysesthesia and bilateral leg numbness and weakness for several hours. He denied any recent illnesses or trauma and was previously healthy. His exam showed decreased strength to his left upper extremity, decreased light touch sensation to bilateral lower extremities, and urinary retention. Computed tomography (CT) and magnetic resonance imaging (MRI) of the cervical spine were performed, which demonstrated acute cervical myelopathy due to congenital cervical stenosis, a less common finding. Congenital cervical stenosis is the narrowing of the cervical spinal canal that is not due to structural, infectious, vascular, or malignant causes. This is an important diagnosis to consider in patients who present with neurologic symptoms without risk factors for common myelopathy causes (eg, degenerative changes). Early diagnosis and treatment are essential to prevent long term neurologic deficits. Topics Neurosurgery, cervical myelopathy, acute neurologic deficits.
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Affiliation(s)
- Carolina Ornelas-Dorian
- University of California, San Francisco, Department of Emergency Medicine, San Francisco, CA
| | - Paul Jhun
- University of California, San Francisco, Department of Emergency Medicine, San Francisco, CA
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15
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Thumbadoo RP, Herzog J, Bhamber N, Lupu C, Kwan K, Clarke A, Hutton M, Bernard J, Bishop T, Lui DF. Dynamic Radiographs in Assessing Stability of Cervical Spine Fractures: A Multicentre Study. J Am Acad Orthop Surg Glob Res Rev 2022; 6:01979360-202210000-00008. [PMID: 36734645 PMCID: PMC9592443 DOI: 10.5435/jaaosglobal-d-22-00067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 06/19/2022] [Indexed: 12/03/2022]
Abstract
BACKGROUND In the management of a trauma patient with cervical spine injury, the need for accurate diagnostic imaging is key to ensure correct management. Different classification systems have been developed including the Subaxial Injury Classification (SLIC) system and AO cervical spine fracture classification. Through a multicentre study, we have identified a group of cases where the use of CT alone to classify fractures by either SLIC or AO score may be deficient and the use of dynamic cervical spine radiographs could help identify instability. METHODS Three level 1 trauma centers retrospectively reviewed patients with cervical spine injuries. Cervical spine radiographs (AP and lateral) were undertaken in collar, in all patients with suspected cervical spine injury within 2 weeks, followed by reanalysis of scoring systems. RESULTS Eleven cases were identified in total, and 72% were male with a mean age of 65 years, with approximately 54% being older than 70 years. All patients reported their pain as severe using the Visual Analogue Scale scale. The predynamic radiograph mean SLIC score was 0.73, which is in contrast to the postdynamic radiograph mean SLIC score of 6. The statistical significance (P = 0.004) was found using the Wilcoxon signed-rank test. CONCLUSION Supine imaging eliminates the gravitational loads normally exerted on the c-spine. The cases show assumed cervical stability based on CT, but dynamic c-spine radiographs subsequently demonstrated instability. Therefore, we suggest a combination of SLIC and AO classification using radiologic imaging to classify fracture and correlate clinical symptoms with persistent neck pain, which warrants a Miami-J collar and dynamic c-spine radiograph to assess stability with re-evaluation of scoring.
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Affiliation(s)
- Ruben Patrick Thumbadoo
- From the St George's University NHS Foundation Trust, London, United Kingdom (Thumbadoo, Herzog, Bhamber, Lupu, Bernard, Bishop, and Lui); the Queen Mary Hospital, Hong Kong, Hong Kong (Kwan); and the Royal Devon and Exeter Hospital, Exeter, United Kingdom (Clarke and Hutton)
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16
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Imaging of Thoracolumbar Spine Traumas. Eur J Radiol 2022; 154:110343. [DOI: 10.1016/j.ejrad.2022.110343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 04/26/2022] [Accepted: 04/27/2022] [Indexed: 11/15/2022]
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17
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Li B, Liu C, Wu S, Li G. Verte-Box: A Novel Convolutional Neural Network for Fully Automatic Segmentation of Vertebrae in CT Image. Tomography 2022; 8:45-58. [PMID: 35076631 PMCID: PMC8788501 DOI: 10.3390/tomography8010005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 12/14/2021] [Accepted: 12/17/2021] [Indexed: 12/19/2022] Open
Abstract
Due to the complex shape of the vertebrae and the background containing a lot of interference information, it is difficult to accurately segment the vertebrae from the computed tomography (CT) volume by manual segmentation. This paper proposes a convolutional neural network for vertebrae segmentation, named Verte-Box. Firstly, in order to enhance feature representation and suppress interference information, this paper places a robust attention mechanism on the central processing unit, including a channel attention module and a dual attention module. The channel attention module is used to explore and emphasize the interdependence between channel graphs of low-level features. The dual attention module is used to enhance features along the location and channel dimensions. Secondly, we design a multi-scale convolution block to the network, which can make full use of different combinations of receptive field sizes and significantly improve the network’s perception of the shape and size of the vertebrae. In addition, we connect the rough segmentation prediction maps generated by each feature in the feature box to generate the final fine prediction result. Therefore, the deep supervision network can effectively capture vertebrae information. We evaluated our method on the publicly available dataset of the CSI 2014 Vertebral Segmentation Challenge and achieved a mean Dice similarity coefficient of 92.18 ± 0.45%, an intersection over union of 87.29 ± 0.58%, and a 95% Hausdorff distance of 7.7107 ± 0.5958, outperforming other algorithms.
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Affiliation(s)
- Bing Li
- School of Automation, Harbin University of Science and Technology, Harbin 150080, China; (C.L.); (S.W.); (G.L.)
- Heilongjiang Provincial Key Laboratory of Complex Intelligent System and Integration, School of Automation, Harbin University of Science and Technology, Harbin 150080, China
- Correspondence:
| | - Chuang Liu
- School of Automation, Harbin University of Science and Technology, Harbin 150080, China; (C.L.); (S.W.); (G.L.)
| | - Shaoyong Wu
- School of Automation, Harbin University of Science and Technology, Harbin 150080, China; (C.L.); (S.W.); (G.L.)
| | - Guangqing Li
- School of Automation, Harbin University of Science and Technology, Harbin 150080, China; (C.L.); (S.W.); (G.L.)
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18
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Tao R, Liu W, Zheng G. Spine-transformers: Vertebra labeling and segmentation in arbitrary field-of-view spine CTs via 3D transformers. Med Image Anal 2021; 75:102258. [PMID: 34670147 DOI: 10.1016/j.media.2021.102258] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 08/10/2021] [Accepted: 09/28/2021] [Indexed: 11/26/2022]
Abstract
In this paper, we address the problem of fully automatic labeling and segmentation of 3D vertebrae in arbitrary Field-Of-View (FOV) CT images. We propose a deep learning-based two-stage solution to tackle these two problems. More specifically, in the first stage, the challenging vertebra labeling problem is solved via a novel transformers-based 3D object detector that views automatic detection of vertebrae in arbitrary FOV CT scans as a one-to-one set prediction problem. The main components of the new method, called Spine-Transformers, are a one-to-one set based global loss that forces unique predictions and a light-weighted 3D transformer architecture equipped with a skip connection and learnable positional embeddings for encoder and decoder, respectively. We additionally propose an inscribed sphere-based object detector to replace the regular box-based object detector for a better handling of volume orientation variations. Our method reasons about the relationships of different levels of vertebrae and the global volume context to directly infer all vertebrae in parallel. In the second stage, the segmentation of the identified vertebrae and the refinement of the detected centers are then done by training one single multi-task encoder-decoder network for all vertebrae as the network does not need to identify which vertebra it is working on. The two tasks share a common encoder path but with different decoder paths. Comprehensive experiments are conducted on two public datasets and one in-house dataset. The experimental results demonstrate the efficacy of the present approach.
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Affiliation(s)
- Rong Tao
- Institute of Medical Robotics, School of Biomedical Engineering, Shanghai Jiao Tong University, No.800 Dongchuan Road, Shanghai 200240, China
| | - Wenyong Liu
- Key Laboratory of Biomechanics and Mechanobiology (Beihang University) of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China.
| | - Guoyan Zheng
- Institute of Medical Robotics, School of Biomedical Engineering, Shanghai Jiao Tong University, No.800 Dongchuan Road, Shanghai 200240, China.
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19
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20
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Lim DJ. Intraoperative finding and management of complete spinal cord transection after thoracolumbar traumatic fracture-dislocation: A case report. Medicine (Baltimore) 2021; 100:e24096. [PMID: 33466175 PMCID: PMC7808503 DOI: 10.1097/md.0000000000024096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 12/08/2020] [Indexed: 01/05/2023] Open
Abstract
RATIONALE We report the first case of the management of spinal cord transection due to thoracolumbar fracture-dislocation in human beings. There are several case reports of cord transection, but only radiological findings have been reported; we report intraoperative findings and management. PATIENT CONCERNS A 53-year-old man presented to the hospital after falling. He had no motor power or sensation below T10 (below the umbilicus area) dermatome level. American Spinal Injury Association (ASIA) impairment scale was grade A. Magnetic resonance imaging and computed tomography demonstrated a fracture and translation of the vertebral body at the T11-T12 level and anterior displacement of T11 on T12, with complete disruption of the spinal cord. DIAGNOSIS Complete spinal cord resection due to T11-T12 fracture-dislocation. INTERVENTIONS We performed spinal fusion with pedicle screw instrumentation (T10-L1) and autobone graft and decompression and repaired the dural sac to prevent cerebrospinal fluid leakage. There was no neurological recovery either immediately or 4 years post-operation at follow-up. CONCLUSION To the best of our knowledge, this report is the first on the intraoperative finding and management of the complete transection of the spinal cord in thoracolumbar spine injury. Perfect fusion is required to facilitate rehabilitation and daily living, prevent neurogenesis, and prevent unnecessary pain such as phantom pain.
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21
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Alves OL, Pereira L, Kim SH, Grin A, Shimokawa N, Konovalov N, Zileli M. Upper Cervical Spine Trauma: WFNS Spine Committee Recommendations. Neurospine 2020; 17:723-736. [PMID: 33401853 PMCID: PMC7788417 DOI: 10.14245/ns.2040226.113] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 10/10/2020] [Indexed: 01/12/2023] Open
Abstract
Craniovertebral junction (CVJ) trauma is a challenging clinical condition. Being a highly mobile functional unit at the junction of the skull and the vertebral column, traumatic events in this area may produce devastating neurological complications and death. Additionally, many of the CVJ traumatic injuries can be left undiagnosed or even raise difficult treatment dilemmas. We present a literature review in the format of recommendations on the diagnosis and management of different scenarios for upper cervical trauma and produce recommendations, which can be applicable to various areas of the globe.
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Affiliation(s)
- Oscar L Alves
- Department of Neurosurgery, Centro Hospitalar de Gaia/Espinho, Vila Nova de Gaia, Portugal.,Department of Neurosurgery, Hospital Lusiadas Porto, Porto, Portugal
| | - Leopoldina Pereira
- Department of Neurosurgery, Centro Hospitalar de Gaia/Espinho, Vila Nova de Gaia, Portugal
| | - Se-Hoon Kim
- Department of Neurosurgery, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Korea
| | - Andrey Grin
- Sklifosovsky Research Institute for Emergency Medicine, Moscow, Russian Federation.,A.I. Evdokimov Moscow Medical University, Moscow, Russian Federation
| | | | - Nikolay Konovalov
- N. N. Burdenko National Medical Research Center of Neurosurgery, Moscow, Russian Federation
| | - Mehmet Zileli
- Department of Neurosurgery, Ege University, Izmir, Turkey
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22
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Wang TY, Mehta VA, Dalton T, Sankey EW, Rory Goodwin C, Karikari IO, Shaffrey CI, Than KD, Abd-El-Barr MM. Biomechanics, evaluation, and management of subaxial cervical spine injuries: A comprehensive review of the literature. J Clin Neurosci 2020; 83:131-139. [PMID: 33281051 DOI: 10.1016/j.jocn.2020.11.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 10/19/2020] [Accepted: 11/01/2020] [Indexed: 10/22/2022]
Abstract
STUDY DESIGN Literature review. OBJECTIVES It has been reported that 2.4-3.7% of all blunt trauma victims suffer some element of cervical spine fracture, with the majority of these patients suffering from C3-7 (subaxial) involvement. With the improvement of first-response to trauma in the community, there are an increasing number of patients who survive their initial trauma and thus arrive at the hospital in need of further evaluation, stabilization, and management of these injuries. METHODS A comprehensive literature review compiled all relevant data on the biomechanics, imaging, evaluation, and medical and surgical management strategies for subaxial cervical spine fractures. RESULTS After review of the current literature on subaxial cervical spine biomechanics, imaging characteristics, evaluation strategies and surgical and orthopedic management techniques, the authors created a comprehensive review and protocol for management of subaxial cervical spine fractures. CONCLUSIONS The subaxial cervical spine is biomechanically and anatomically unique from the remainder of the spinal axis. Evaluation of subaxial cervical spine injuries is nuanced, and improper management of these injuries can lead to significant patient morbidity and even death. This provides a comprehensive review combining anatomy, imaging characteristics, evaluation strategies, and surgical and orthopedic management principles for subaxial cervical spine fractures.
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Affiliation(s)
- Timothy Y Wang
- Departments of Neurosurgery, Duke University Medical Center, Durham, NC, USA
| | - Vikram A Mehta
- Departments of Neurosurgery, Duke University Medical Center, Durham, NC, USA
| | - Tara Dalton
- Departments of Neurosurgery, Duke University Medical Center, Durham, NC, USA; Duke University School of Medicine, Durham, NC, USA
| | - Eric W Sankey
- Departments of Neurosurgery, Duke University Medical Center, Durham, NC, USA
| | - C Rory Goodwin
- Departments of Neurosurgery, Duke University Medical Center, Durham, NC, USA
| | - Isaac O Karikari
- Departments of Neurosurgery, Duke University Medical Center, Durham, NC, USA
| | | | - Khoi D Than
- Departments of Neurosurgery, Duke University Medical Center, Durham, NC, USA
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23
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Laur O, Nandu H, Titelbaum DS, Nunez DB, Khurana B. Nontraumatic Spinal Cord Compression: MRI Primer for Emergency Department Radiologists. Radiographics 2020; 39:1862-1880. [PMID: 31589584 DOI: 10.1148/rg.2019190024] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The occurrence of acute myelopathy in a nontrauma setting constitutes a medical emergency for which spinal MRI is frequently ordered as the first step in the patient's workup. The emergency department radiologist should be familiar with the common differential diagnoses of acute myelopathy and be able to differentiate compressive from noncompressive causes. The degree of spinal cord compression and presence of an intramedullary T2-hyperintense signal suggestive of an acute cord edema are critical findings for subsequent urgent care such as surgical decompression. Importantly, a delay in diagnosis may lead to permanent disability. In the spinal canal, compressive myelopathy can be localized to the epidural, intradural extramedullary, or intramedullary anatomic spaces. Effacement of the epidural fat and the lesion's relation to the thecal sac help to distinguish an epidural lesion from an intradural lesion. Noncompressive myelopathy manifests as an intramedullary T2-hyperintense signal without an underlying mass and has a wide range of vascular, metabolic, inflammatory, infectious, and demyelinating causes with seemingly overlapping imaging appearances. The differential diagnosis can be refined by considering the location of the abnormal signal intensity within the cord, the longitudinal extent of the disease, and the clinical history and laboratory findings. Use of a compartmental spinal MRI approach in patients with suspected nontraumatic spinal cord injury helps to localize the abnormality to an epidural, intradural extramedullary, or intramedullary space, and when combined with clinical and laboratory findings, aids in refining the diagnosis and determining the appropriate surgical or nonsurgical management.Online supplemental material is available for this article.©RSNA, 2019.
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Affiliation(s)
- Olga Laur
- From the Departments of Radiology (O.L., D.B.N.), Neuroradiology (H.N., D.B.N.), and Emergency Radiology (B.K.), Brigham and Women's Hospital, 75 Francis St, Boston, MA 02115; and Department of Radiology, Shields Health Care, Brockton, Mass (D.S.T.)
| | - Hari Nandu
- From the Departments of Radiology (O.L., D.B.N.), Neuroradiology (H.N., D.B.N.), and Emergency Radiology (B.K.), Brigham and Women's Hospital, 75 Francis St, Boston, MA 02115; and Department of Radiology, Shields Health Care, Brockton, Mass (D.S.T.)
| | - David S Titelbaum
- From the Departments of Radiology (O.L., D.B.N.), Neuroradiology (H.N., D.B.N.), and Emergency Radiology (B.K.), Brigham and Women's Hospital, 75 Francis St, Boston, MA 02115; and Department of Radiology, Shields Health Care, Brockton, Mass (D.S.T.)
| | - Diego B Nunez
- From the Departments of Radiology (O.L., D.B.N.), Neuroradiology (H.N., D.B.N.), and Emergency Radiology (B.K.), Brigham and Women's Hospital, 75 Francis St, Boston, MA 02115; and Department of Radiology, Shields Health Care, Brockton, Mass (D.S.T.)
| | - Bharti Khurana
- From the Departments of Radiology (O.L., D.B.N.), Neuroradiology (H.N., D.B.N.), and Emergency Radiology (B.K.), Brigham and Women's Hospital, 75 Francis St, Boston, MA 02115; and Department of Radiology, Shields Health Care, Brockton, Mass (D.S.T.)
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24
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Frakturen von Kopf und Halswirbelsäule. Radiologe 2020; 60:601-609. [DOI: 10.1007/s00117-020-00702-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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25
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Dean BL, Smith C, Liebel FX, Warren-Smith C. Multiple Cervical Vertebral Malformations in a 21-Week-Old Kitten. J Am Anim Hosp Assoc 2020; 55:256-260. [PMID: 31433220 DOI: 10.5326/jaaha-ms-6865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
A 21 wk old, 2 kg neutered male domestic shorthair presented with a 24 hr history of acute-onset severe nonambulatory tetraparesis with no known inciting cause. Neurologic examination revealed a C1-C5 myelopathy. Computed tomography of the vertebral column and thorax revealed incomplete ossification of the C2 and C3 vertebrae and lung bullae. After 4 wk of conservative management, the client reported a return to normal ambulation with reluctance to jump up. To the authors' knowledge, this is the first report of a feline case of incomplete ossification of cervical vertebrae. The cervical malformations outlined in this report are differentials to consider in cases of acute-onset tetraparesis in cats.
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Affiliation(s)
- Barnaby Luke Dean
- From Southern Counties Veterinary Specialists, Ringwood, United Kingdom (B.L.D.); and Langford Small Animal Hospital, Bristol, United Kingdom (C.S., F-X.L., C.W-S.)
| | - Caroline Smith
- From Southern Counties Veterinary Specialists, Ringwood, United Kingdom (B.L.D.); and Langford Small Animal Hospital, Bristol, United Kingdom (C.S., F-X.L., C.W-S.)
| | - Francois-Xavier Liebel
- From Southern Counties Veterinary Specialists, Ringwood, United Kingdom (B.L.D.); and Langford Small Animal Hospital, Bristol, United Kingdom (C.S., F-X.L., C.W-S.)
| | - Christopher Warren-Smith
- From Southern Counties Veterinary Specialists, Ringwood, United Kingdom (B.L.D.); and Langford Small Animal Hospital, Bristol, United Kingdom (C.S., F-X.L., C.W-S.)
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26
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Wani T, Dabaliz A, Kadah K, Veneziano G, Tumin D, Tobias J. Comparison of the skin-to-epidural space distance at the thoracic and lumbar levels in children using magnetic resonance imaging. Saudi J Anaesth 2020; 14:493-497. [PMID: 33447192 PMCID: PMC7796762 DOI: 10.4103/sja.sja_292_20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 04/15/2020] [Indexed: 11/17/2022] Open
Abstract
Background: Several studies have attempted to estimate the approximate distance from the skin-to-epidural space using different imaging modalities (computed tomography [CT], ultrasound, and magnetic resonance imaging [MRI]) and direct needle measurements. The objective of our study was to compare the distance from the skin to the epidural space (SED) at multiple levels, focusing on T6-7, T9-10, and L2-3 using MRI. Methods: After institutional review board (IRB) approval, sagittal T2-weighted MRI images of the spine of 108 children in the age group ranging from 3 months to 8 years undergoing radiological evaluation in the supine position at our institution were analyzed. The SED at T6-7 and T9-10 levels (straight and inclined) and SED at L2-3 (straight) were determined and compared using repeated-measures ANOVA and paired t-tests with a Bonferroni correction for 10 pairwise comparisons (P < 0.005 was considered statistically significant). Results: The average SED (measured straight and inclined) was 18.2 mm and 21.6 mm at T6-7; 18.3 mm and 20.5 mm at T9-10; and 21.8 mm (straight) at L2-3. The repeated-measures ANOVA F-test indicated significant variability in SED (P < 0.001) among the 5 measurements obtained. At the P < 0.005 significance level, corrected for multiple comparisons, the SED (straight) at T9-10 straight was shorter than the other measured distances. Conclusion: The distance from the skin to the epidural space is not constant at various vertebral levels. At the levels measured, it was greatest at the lumbar level and at least at the thoracic level of T9-10. A single predictive formula was not applicable for calculating the approximate SED at all vertebral levels.
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27
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Gallastegui A, Davies E, Zwingenberger AL, Nykamp S, Rishniw M, Johnson PJ. MRI has limited agreement with CT in the evaluation of vertebral fractures of the canine trauma patient. Vet Radiol Ultrasound 2019; 60:533-542. [PMID: 31309654 DOI: 10.1111/vru.12785] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 05/06/2019] [Accepted: 05/13/2019] [Indexed: 11/26/2022] Open
Abstract
Complete assessment of vertebral trauma in dogs currently requires CT and MRI for evaluation of the osseous and soft tissue structures that contribute to vertebral stability. Some studies in people have suggested that MRI may be sensitive and specific at detecting vertebral fractures making this potentially a single modality that could be used in spinal trauma evaluation. This study aimed to assess the ability for observers to evaluate vertebral fractures using MRI when compared to CT, which was used as the reference standard. Twenty-nine dogs with previously diagnosed acute vertebral fractures and four dogs with no vertebral fracture that had undergone sequential CT and MRI were included into the study. One hundred twenty-eight vertebrae were evaluated for the presence of fractures. Imaging studies were read by two observers blinded to the history. While both observers had similarly high sensitivity and specificity for simple detection of any fractured vertebrae, interobserver agreement was only moderate (κ = 0.584). When evaluations were specifically limited to detection of structurally unstable fractured vertebrae both observers showed improved specificity and interobserver agreement became substantial (κ = 0.650). Complete agreement for exact fracture location between MRI and CT results was only achieved in 14.3-32.6% of fractured vertebra with up to 79% of fractures being missed in some vertebral structures. This suggests that although MRI may be able to detect the presence of fractured vertebrae, it is not able to replace CT for the complete evaluation of the traumatized spine and documentation of fracture morphology.
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Affiliation(s)
- Aitor Gallastegui
- College of Veterinary Medicine, University of Florida, Gainesville, Florida
| | - Emma Davies
- Cornell College of Veterinary Medicine, Cornell University, Ithaca, New York
| | | | - Stephanie Nykamp
- The Ontario Veterinary College Health Sciences Center, University of Guelph, Guelph, Ontario, Canada
| | - Mark Rishniw
- Cornell College of Veterinary Medicine, Cornell University, Ithaca, New York
| | - Philippa J Johnson
- Cornell College of Veterinary Medicine, Cornell University, Ithaca, New York
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Cizkova D, Murgoci AN, Cubinkova V, Humenik F, Mojzisova Z, Maloveska M, Cizek M, Fournier I, Salzet M. Spinal Cord Injury: Animal Models, Imaging Tools and the Treatment Strategies. Neurochem Res 2019; 45:134-143. [PMID: 31006093 DOI: 10.1007/s11064-019-02800-w] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 04/10/2019] [Accepted: 04/11/2019] [Indexed: 02/06/2023]
Abstract
Spinal cord injury (SCI) often leads to irreversible neuro-degenerative changes with life-long consequences. While there is still no effective therapy available, the results of past research have led to improved quality of life for patients suffering from partial or permanent paralysis. In this review we focus on the need, importance and the scientific value of experimental animal models simulating SCI in humans. Furthermore, we highlight modern imaging tools determining the location and extent of spinal cord damage and their contribution to early diagnosis and selection of appropriate treatment. Finally, we focus on available cellular and acellular therapies and novel combinatory approaches with exosomes and active biomaterials. Here we discuss the efficacy and limitations of adult mesenchymal stem cells which can be derived from bone marrow, adipose tissue or umbilical cord blood and its Wharton's jelly. Special attention is paid to stem cell-derived exosomes and smart biomaterials due to their special properties as a delivery system for proteins, bioactive molecules or even genetic material.
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Affiliation(s)
- Dasa Cizkova
- Institute of Neuroimmunology, Slovak Academy of Sciences, Dúbravská cesta 9, 845 10, Bratislava, Slovakia. .,Department of Anatomy, Histology and Physiology, University of Veterinary Medicine and Pharmacy in Košice, Komenského 73, 041 81, Kosice, Slovakia. .,Inserm, U-1192-Laboratoire Protéomique, Réponse Inflammatoire et Spectrométrie de Masse-PRISM, Université de Lille, 59000, Lille, France.
| | - Adriana-Natalia Murgoci
- Institute of Neuroimmunology, Slovak Academy of Sciences, Dúbravská cesta 9, 845 10, Bratislava, Slovakia.,Inserm, U-1192-Laboratoire Protéomique, Réponse Inflammatoire et Spectrométrie de Masse-PRISM, Université de Lille, 59000, Lille, France
| | - Veronika Cubinkova
- Institute of Neuroimmunology, Slovak Academy of Sciences, Dúbravská cesta 9, 845 10, Bratislava, Slovakia
| | - Filip Humenik
- Department of Anatomy, Histology and Physiology, University of Veterinary Medicine and Pharmacy in Košice, Komenského 73, 041 81, Kosice, Slovakia
| | - Zuzana Mojzisova
- Department of Anatomy, Histology and Physiology, University of Veterinary Medicine and Pharmacy in Košice, Komenského 73, 041 81, Kosice, Slovakia
| | - Marcela Maloveska
- Department of Anatomy, Histology and Physiology, University of Veterinary Medicine and Pharmacy in Košice, Komenského 73, 041 81, Kosice, Slovakia
| | - Milan Cizek
- Department of Epizootology and Parasitology, University of Veterinary Medicine and Pharmacy in Košice, Komenského 73, 041 81, Kosice, Slovakia
| | - Isabelle Fournier
- Inserm, U-1192-Laboratoire Protéomique, Réponse Inflammatoire et Spectrométrie de Masse-PRISM, Université de Lille, 59000, Lille, France
| | - Michel Salzet
- Inserm, U-1192-Laboratoire Protéomique, Réponse Inflammatoire et Spectrométrie de Masse-PRISM, Université de Lille, 59000, Lille, France
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Khoury L, Chang E, Hill D, Shams S, Sim V, Panzo M, Vijmasi T, Cohn S. Management of Thoracic and Lumbar Spine Fractures: Is MRI Necessary in Patients without Neurological Deficits? Am Surg 2019; 85:306-311. [PMID: 30947780 DOI: 10.1177/000313481908500338] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
MRI after a CT scan for thoracolumbar spine (TLS) trauma has become commonplace because of the concerns for detection of posterior ligamentous complex injuries in the absence of substantial scientific evidence to support its use. We hypothesized that MRI scans were not necessary in the clinical management of TLS fractures. A prospective study was conducted at our Level I trauma center. A total of 39 neurologically intact patients with TLS fracture on CT were enrolled. The patients' CT scan and neurological examination were reviewed by a senior neurosurgeon, who determined clinical management based on these data. Assessment was repeated after an MRI of the spine was performed, and a second clinical plan was devised. The two treatment schemes were then compared. MRI resulted in a change in clinical management in 15 per cent of patients. Ten per cent of patients changed from requiring a brace to no brace and merely observation alone. In no patient planned for nonoperative care was surgery deemed necessary after completion of MRI. Among five patients with initial plans for operative intervention, two avoided surgery after the MRI. MRI has little impact on the management of patients with CT-proven thoracic and lumbar spine fractures. Only when surgery is planned based on CT studies does an MRI seem to assist with determining optimal care.
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ACR Appropriateness Criteria ® Management of Vertebral Compression Fractures. J Am Coll Radiol 2019; 15:S347-S364. [PMID: 30392604 DOI: 10.1016/j.jacr.2018.09.019] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 09/07/2018] [Indexed: 02/08/2023]
Abstract
Vertebral compression fractures (VCFs) have various causes, including osteoporosis, neoplasms, and acute trauma. As painful VCFs may contribute to general physical deconditioning, management of painful VCFs has the potential for improving quality of life and preventing superimposed medical complications. Various imaging modalities can be used to evaluate a VCF to help determine the etiology and guide intervention. The first-line treatment of painful VCFs has been nonoperative or conservative management as most VCFs show gradual improvement in pain over 2 to 12 weeks, with variable return of function. There is evidence that vertebral augmentation (VA) is associated with better pain relief and improved functional outcomes compared to conservative therapy for osteoporotic VCFs. A multidisciplinary approach is necessary for the management of painful pathologic VCFs, with management strategies including medications to affect bone turnover, radiation therapy, and interventions such as VA and percutaneous thermal ablation to alleviate symptoms. The American College of Radiology Appropriateness Criteria are evidence-based guidelines for specific clinical conditions that are reviewed annually by a multidisciplinary expert panel. The guideline development and revision include an extensive analysis of current medical literature from peer reviewed journals and the application of well-established methodologies (RAND/UCLA Appropriateness Method and Grading of Recommendations Assessment, Development, and Evaluation or GRADE) to rate the appropriateness of imaging and treatment procedures for specific clinical scenarios. In those instances where evidence is lacking or equivocal, expert opinion may supplement the available evidence to recommend imaging or treatment.
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Leidinger A, Kim EE, Navarro-Ramirez R, Rutabasibwa N, Msuya SR, Askin G, Greving R, Shabani HK, Härtl R. Spinal trauma in Tanzania: current management and outcomes. J Neurosurg Spine 2019; 31:103-111. [PMID: 30952133 DOI: 10.3171/2018.12.spine18635] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Accepted: 12/28/2019] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Spinal trauma is a major cause of disability worldwide. The burden is especially severe in low-income countries, where hospital infrastructure is poor, resources are limited, and the volume of cases is high. Currently, there are no reliable data available on incidence, management, and outcomes of spinal trauma in East Africa. The main objective of this study was to describe, for the first time, the demographics, management, costs of surgery and implants, treatment decision factors, and outcomes of patients with spine trauma in Tanzania. METHODS The authors retrospectively reviewed prospectively collected data on spinal trauma patients in the single surgical referral center in Tanzania (Muhimbili Orthopaedic Institute [MOI]) from October 2016 to December 2017. They collected general demographics and the following information: distance from site of trauma to the center, American Spinal Injury Association Impairment Scale (AIS), time to surgery, steroid use, and mechanism of trauma and AOSpine classification and costs. Surgical details and complications were recorded. Primary outcome was neurological status on discharge. The authors analyzed surgical outcome and determined predicting factors for positive outcome. RESULTS A total of 180 patients were included and analyzed in this study. The mean distance from site of trauma to MOI was 278.0 km, and the time to admission was on average 5.9 days after trauma. Young males were primarily affected (82.8% males, average age 35.7 years). On admission, 47.2% of patients presented with AIS grade A. Most common mechanisms of injury were motor vehicle accidents (28.9%) and falls from height (32.8%). Forty percent of admitted patients underwent surgery. The mean time to surgery was 33.2 days; 21.4% of patients who underwent surgery improved in AIS grade at discharge (p = 0.030). Overall, the only factor associated with improvement in neurological status was undergoing surgery (p = 0.03) and shorter time to surgery (p = 0.02). CONCLUSIONS This is the first study to describe the management and outcomes of spinal trauma in East Africa. Due to the lack of referral hospitals, patients are admitted late after trauma, often with severe neurological deficit. Surgery is performed but generally late in the course of hospital stay. The decision to perform surgery and timing are heavily influenced by the availability of implants and economic factors such as insurance status. Patients with incomplete deficits who may benefit most from surgery are not prioritized. The authors' results suggest that surgery may have a positive impact on patient outcome. Further studies with a larger sample size are needed to confirm our results. These results provide strong support to implement evidence-based protocols for the management of spinal trauma.
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Affiliation(s)
| | | | | | | | - Salim R Msuya
- Departments of1Neurological Surgery and
- 2Muhimbili Orthopaedic Institute, Dar es Salaam, Tanzania
| | - Gulce Askin
- 3Healthcare Policy & Research, Weill Cornell Brain and Spine Center, NewYork-Presbyterian Hospital, New York, New York; and
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Abstract
BACKGROUND Radiological imaging is important in the preoperative diagnosis of many forms of spinal pathology and plays a fundamental role in the assessment of p.o. effects, which can be verified on the spinal column as well as on the surrounding soft tissues, depending on the imaging method used. AIM The article provides an overview of the current status and possibilities of radiological diagnostic methods for the verification of possibly recommended spine surgery in the context of degenerative, inflammatory-infectious, post-traumatic or p.o. pathologies and changes in the spine: X‑rays, computed tomography (CT), magnetic resonance imaging (MRI). The supplementary nuclear medicine procedures (scintigraphy, PET[-CT], SPECT, etc.) which may be required for special questions are not discussed. MATERIAL AND METHODS The merits and limitations of the techniques used in the investigation of advanced degenerative spinal pathologies and post-traumatic conditions are discussed, with multidetector CT being the focus of attention in spinal clearance for traumatic injuries. In most cases of spinal infection, MRI images, as a central diagnostic tool, show typical findings such as destruction of adjacent endplates, bone marrow and intervertebral disc abnormalities, and paravertebral or epidural abscesses. However, it is not always easy to diagnose a spinal infection, especially if atypical MR patterns of infectious spondylitis are present. Knowledge of them means misdiagnosis and improper treatment can be avoided. RESULTS It is shown that high-quality modern radiological examinations are essential for diagnosis and p.o. management, as these provide answers to the main questions in the treatment: Is the entity/injury stable or unstable, acute or old, benign or malign; is there a myelopathy or p.o. complication? DISCUSSION The main indications for p.o. diagnostic imaging, difficulties such as metal artefact formation, and potential pitfalls are analyzed. Entity-specific radiological image patterns, imaging algorithms and differential diagnostic peculiarities are presented and discussed based on current literature and selected case studies.
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Affiliation(s)
- Uwe H W Schütz
- Klinik für Diagnostische und Interventionelle Radiologie, Universitätsklinikum Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Deutschland. .,Orthopädie und Schmerzmedizin am Grünen Turm, Grüner-Turm-Str. 4-10, 88212, Ravensburg, Deutschland.
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Boban J, Thurnher MM, Van Goethem JW. Spine and Spinal Cord Trauma. Clin Neuroradiol 2019. [DOI: 10.1007/978-3-319-68536-6_28] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Abstract
Acute low back pain, defined as less than 6 weeks in duration, does not require imaging in the absence of "red flags" that may indicate a cause, such as fracture, infection, or malignancy. When imaging is indicated, it is important to rule out a host of abnormalities that may be responsible for the pain and any associated symptoms. A common mnemonic VINDICATE can help ensure a thorough consideration of the possible causes.
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Affiliation(s)
- Scott M Johnson
- Department of Radiology and Imaging Sciences, University of Utah, 30 North 1900 East, Room 1A71, Salt Lake City, UT 84132, USA
| | - Lubdha M Shah
- Department of Radiology and Imaging Sciences, University of Utah, 30 North 1900 East, Room 1A71, Salt Lake City, UT 84132, USA.
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Yuen J, Selbi W, Lee L, Germon T. Usefulness of antero-posterior radiograph and variability of management in non-major thoracolumbar injuries: a single centre pilot study and review of literature. Chin Neurosurg J 2018; 4:29. [PMID: 32922890 PMCID: PMC7398401 DOI: 10.1186/s41016-018-0136-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 09/06/2018] [Indexed: 11/30/2022] Open
Abstract
Background Most adult trauma protocols suggest that where there has been a dangerous mechanism of injury or the patient exhibits abnormal physiology, CT scan is the primary radiological investigation. Other patients who may have suffered thoraco-lumbar (T-L) trauma initially have antero-posterior (AP) and lateral plain X-rays performed. Our clinical experience suggests AP views are not particularly useful in the management of these relatively low-velocity injuries. This is the first study intended to determine the contribution made by AP X-rays in these cases. Methods Adults with a history of T-L trauma referred to our tertiary spinal service over 20 weeks were reviewed. Those with a CT scan performed prior to X-rays were excluded. Four spine surgeons and four neuroradiologists were independently shown lateral X-rays along with the clinical details and asked to provide a management plan. Then they were shown the AP X-rays and asked if they would like to change their advice. Results Fifty-two patients were identified. Thirty-four sets of supine and 40 sets of erect X-rays were included (four people only had lateral X-rays performed), yielding 1152 film views. Average patient age was 58.3 years with 30 (58%) males. Forty-five (87%) were AO type A (compression-type) fractures. Seven (13%) had been erroneously referred with a diagnosis of acute fracture, which on review was not considered to be the case. Fifty-four percent of fractures were between T11 and L2. Forty-six percent appeared osteoporotic. In no instance did evaluation of the AP X-ray change the management plan which had been suggested following the evaluation of the lateral X-ray alone. However, there was significant variation in advice on further management between consultants. Conclusions Our results suggest AP X-rays do not contribute to the management of low-velocity thoraco-lumbar traumas. Larger studies are required to support these findings, but there appears to be a potential to reduce both cost and radiation exposure. More importantly, it demonstrates there is large variability in the management of such patients due to the lack of evidence-based protocols.
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The Prognostic Significance of Pedicle Enhancement from Contrast-enhanced MRI for the Further Collapse in Osteoporotic Vertebral Compression Fractures. Spine (Phila Pa 1976) 2018; 43:1586-1594. [PMID: 29649091 DOI: 10.1097/brs.0000000000002672] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN A retrospective observational study. OBJECTIVE The aim of this study was to investigate the prognostic significance of contrast-enhanced magnetic resonance imaging (MRI) for detecting pedicle enhancement and predicting future collapse in patients with acute benign osteoporotic vertebral compression fracture (OVCF). SUMMARY OF BACKGROUND DATA Traditional morphological classification regarding compression versus burst fractures cannot accurately anticipate the prognosis of further collapse. Identifying subgroups with a higher risk for further collapse may be beneficial in determining the treatment modality, which should be decided immediately after the injury. METHODS One hundred fourteen patients with benign OVCFs who, at the onset, underwent contrast-enhanced spine MRI between 2003 and 2016 were retrospectively analyzed. Patients were recruited on the basis of predefined inclusion and exclusion criteria. The primary outcome was the compression progression rate; other potential variables included demographic and clinical characteristics, initial compression rates, and kyphotic angles. In addition, other structural abnormalities on MRI were assessed. The compression progression rates were compared according to pedicle enhancement, and the prognostic significance of pedicle enhancement for further collapse were analyzed. RESULTS Further compression progression rates were significantly higher in the pedicle-enhanced (PE) group than in the nonenhanced (NE) group. Multivariate logistic analysis revealed that pedicle enhancement may be associated with further compression progression ≥10%. The vertebral augmentation (VAG) protective effect against collapse was only significant within the PE group, while bone densitometry and patients' mobility were significant only within the NE group. The log-rank test revealed a statistically significant difference in the rates of further collapse ≥10% during the 1 year between the groups. CONCLUSION Sign of pedicle enhancement is a potential risk factor for further compression progression. Contrast-enhanced MRI should be performed at the onset to better determine the future risk of collapse and to choose a better treatment modality for benign OVCF patients. LEVEL OF EVIDENCE 3.
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Bhimani AD, Chiu RG, Esfahani DR, Patel AS, Denyer S, Hobbs JG, Mehta AI. C1–C2 Fusion Versus Occipito-Cervical Fusion for High Cervical Fractures: A Multi-Institutional Database Analysis and Review of the Literature. World Neurosurg 2018; 119:e459-e466. [DOI: 10.1016/j.wneu.2018.07.182] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 07/18/2018] [Accepted: 07/20/2018] [Indexed: 10/28/2022]
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Santos-Nunez G, Lo HS, Kotecha H, Jose J, Abayazeed A. Imaging of Spine Fractures With Emphasis on the Craniocervical Junction. Semin Ultrasound CT MR 2018; 39:324-335. [DOI: 10.1053/j.sult.2018.04.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Ramo NL, Troyer KL, Puttlitz CM. Viscoelasticity of spinal cord and meningeal tissues. Acta Biomater 2018; 75:253-262. [PMID: 29852238 DOI: 10.1016/j.actbio.2018.05.045] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Revised: 05/02/2018] [Accepted: 05/25/2018] [Indexed: 01/08/2023]
Abstract
Compared to the outer dura mater, the mechanical behavior of spinal pia and arachnoid meningeal layers has received very little attention in the literature. This is despite experimental evidence of their importance with respect to the overall spinal cord stiffness and recovery following compression. Accordingly, inclusion of the mechanical contribution of the pia and arachnoid maters would improve the predictive accuracy of finite element models of the spine, especially in the distribution of stresses and strain through the cord's cross-section. However, to-date, only linearly elastic moduli for what has been previously identified as spinal pia mater is available in the literature. This study is the first to quantitatively compare the viscoelastic behavior of isolated spinal pia-arachnoid-complex, neural tissue of the spinal cord parenchyma, and intact construct of the two. The results show that while it only makes up 5.5% of the overall cross-sectional area, the thin membranes of the innermost meninges significantly affect both the elastic and viscous response of the intact construct. Without the contribution of the pia and arachnoid maters, the spinal cord has very little inherent stiffness and experiences significant relaxation when strained. The ability of the fitted non-linear viscoelastic material models of each condition to predict independent data within experimental variability supports their implementation into future finite element computational studies of the spine. STATEMENT OF SIGNIFICANCE The neural tissue of the spinal cord is surrounded by three fibrous layers called meninges which are important in the behavior of the overall spinal-cord-meningeal construct. While the mechanical properties of the outermost layer have been reported, the pia mater and arachnoid mater have received considerably less attention. This study is the first to directly compare the behavior of the isolated neural tissue of the cord, the isolated pia-arachnoid complex, and the construct of these individual components. The results show that, despite being very thin, the inner meninges significantly affect the elastic and time-dependent response of the spinal cord, which may have important implications for studies of spinal cord injury.
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Affiliation(s)
- Nicole L Ramo
- School of Biomedical Engineering, Colorado State University, Fort Collins, CO, USA
| | - Kevin L Troyer
- Department of Mechanical Engineering, Colorado State University, Fort Collins, CO, USA
| | - Christian M Puttlitz
- School of Biomedical Engineering, Colorado State University, Fort Collins, CO, USA; Department of Mechanical Engineering, Colorado State University, Fort Collins, CO, USA; Department of Clinical Sciences, Colorado State University, Fort Collins, CO, USA.
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Measurements in cervical vertebrae CT of pediatric cases: normal values. Jpn J Radiol 2018; 36:500-510. [PMID: 29922898 DOI: 10.1007/s11604-018-0749-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Accepted: 05/31/2018] [Indexed: 10/28/2022]
Abstract
PURPOSE This study aims to determine the normal limits of atlanto-dental interval (ADI), basion-dens interval (BDI), basion-cartilaginous dens interval (BCDI), and prevertebral soft tissue thickness (PVSTT) according to age groups for normal pediatric cases. MATERIALS AND METHODS CT images of 256 pediatric patients aged between 1 and 15 years were retrospectively evaluated. ADI, BDI, BCDI and PVSTT measurements were performed. RESULTS Upper normal limit (UNL) values for ADI were 2.65-4.8 mm. UNL values for PVSTT were found to be 6.9 mm at C1 level, 6.7 mm at C2 level, 9.3 mm at C3 level, 14.2 mm at C4 level, 14.1 mm at C5 level, 13.8 mm at C6 level and 12.8 mm at C7 level. The maximum value of BDI in the group with non-ossified os terminale was 12 mm, and in the group with ossified os terminale it was 10 mm. The UNL of BCDI determined for females was 5.1 mm, while the UNL for males was 5.6 mm. CONCLUSION We propose the obtained values as the UNL values for ADI, BDI, BCDI and PVSTT on CT images in the pediatric population from 1 to 15 years.
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Fatehi D, Dayani MA, Rostamzadeh A. Role of CT scan in theranostic and management of traumatic spinal cord injury. Saudi J Biol Sci 2018; 25:739-746. [PMID: 29740239 PMCID: PMC5936868 DOI: 10.1016/j.sjbs.2016.08.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Revised: 08/12/2016] [Accepted: 08/17/2016] [Indexed: 11/26/2022] Open
Abstract
Traumatic spinal cord injury (TSCI) is a condition with suffering of neural structures from acute trauma with short-term or permanent sensory and motor problems. This study was conducted with the aim of determining the prevalence of TSCI in Tehran with emphasis on demographic characteristics of patients and to evaluate the effect of computed tomography (CT) in determining fracture type and severity grade of injury among TSCI patients. In a cross-sectional study, all TSCI and spinal fracture patients (N = 520) who referred to the main trauma center in Tehran, Iran, in 2013 and 2014 were selected. Radiography and CT scan were prepared and reported blindedly by two radiologists. Majority of the patients was 21-30 years male, married and their most common occupation was car driver. A significant difference was observed between gender and etiology (P = 0.001). The main etiology was traffic accident followed by falling from height. While the most common location of injury for males was thoracic vertebrae followed by lumbar vertebrae; for females it was lumbar followed by thoracic. Majority of patients had ASIA (American Spinal Injury Association) impairment scale of E (normal), followed by B (sensory incomplete). Most of the cases were hospitalized less than one week. Age of the patient and duration of hospitalization had a significant association (P = 0.015). The results showed that in traumatic spinal cord events, traffic accident and falling from height are the main etiologies; hence, authorities in Iranian health system could consider preventive policies to decline the load and TSCI effects in hospitals and population.
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Affiliation(s)
- Daryoush Fatehi
- Department of Medical Physics, Faculty of Medicine, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Mohammad Ali Dayani
- Department of Radiology, Faculty of Medicine, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Ayoob Rostamzadeh
- Department of Anatomy and Neuroscience, Faculty of Medicine, Shahrekord University of Medical Sciences, Shahrekord, Iran
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Atinga A, Shekkeris A, Fertleman M, Batrick N, Kashef E, Dick E. Trauma in the elderly patient. Br J Radiol 2018; 91:20170739. [PMID: 29509505 DOI: 10.1259/bjr.20170739] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Major Trauma Centres and Emergency Departments are treating an increasing number of elderly trauma patients in the UK. Elderly patients, defined as those over the age of 65 years, are more susceptible to injury from lesser mechanisms of trauma than younger adults. The number of elderly trauma cases is rising yearly, accounting for >25% of all major trauma nationally. The elderly have different physiological reserves and a different response to trauma due to premorbid frailty, co-existing conditions and prescribed medication. These factors need to be appreciated in trauma triaging, radiological assessment and clinical management. A lower threshold for trauma-call activation is recommended, including a lower threshold for advanced imaging. We will review general principles of trauma in the elderly, outline injury patterns in this age group and illustrate the radiological features per anatomical site, from head to pelvis and the extremities. We advocate using contrast-enhanced computed tomography as the primary diagnostic imaging modality as concern about intravenous contrast agent-induced nephropathy is relatively minor. Prompt investigation and diagnosis leads to timely appropriate treatment, therefore the radiologist can discerningly improve morbidity and mortality in this vulnerable group.
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Affiliation(s)
- Angela Atinga
- 1 Department of Radiology, St Mary's Hospital, Imperial College Healthcare NHS Trust , London , UK
| | - Andreas Shekkeris
- 1 Department of Radiology, St Mary's Hospital, Imperial College Healthcare NHS Trust , London , UK
| | - Michael Fertleman
- 2 Department of Medicine, St Mary's Hospital, Imperial College Healthcare NHS Trust , London , UK
| | - Nicola Batrick
- 3 Department of Emergency Medicine, St Mary's Hospital, Imperial College Healthcare NHS Trust , London , UK
| | - Elika Kashef
- 1 Department of Radiology, St Mary's Hospital, Imperial College Healthcare NHS Trust , London , UK
| | - Elizabeth Dick
- 1 Department of Radiology, St Mary's Hospital, Imperial College Healthcare NHS Trust , London , UK
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Saragiotto BT, Maher CG, Lin CWC, Verhagen AP, Goergen S, Michaleff ZA. Canadian C-spine rule and the National Emergency X-Radiography Utilization Study (NEXUS) for detecting clinically important cervical spine injury following blunt trauma. Hippokratia 2018. [DOI: 10.1002/14651858.cd012989] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Bruno T Saragiotto
- Sydney Medical School, The University of Sydney; Musculoskeletal Health Sydney, School of Public Health; Sydney Australia
| | - Christopher G Maher
- The University of Sydney; Sydney School of Public Health; Level 10 North, King George V Building, Missenden Road, Camperdown Sydney NSW Australia 2050
| | - Chung-Wei Christine Lin
- Sydney School of Public Health, The University of Sydney; Musculoskeletal Health Sydney; Level 10, North, King George V Building, Royal Prince Alfred Hospital (C39) Sydney New South Wales Australia 2050
| | - Arianne P Verhagen
- University of Technology Sydney; Department of Physiotherapy; Sydney Australia
| | - Stacy Goergen
- Southern Health; Diagnostic Imaging, Monash Medical Centre; 246 Clayton Road Clayton Melbourne VIC Australia 3144
| | - Zoe A Michaleff
- Keele University; Arthritis Research UK Primary Care Centre, Research Institute for Primary Care & Health Sciences; Keele Staffordshire UK ST5 5BG
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Wani T, Beltran R, Veneziano G, AlGhamdi F, Azzam H, Akhtar N, Tumin D, Majid Y, Tobias JD. Dura to spinal cord distance at different vertebral levels in children and its implications on epidural analgesia: A retrospective MRI-based study. Paediatr Anaesth 2018; 28:338-341. [PMID: 29405534 DOI: 10.1111/pan.13339] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/01/2018] [Indexed: 10/18/2022]
Abstract
BACKGROUND The distance from the dura to spinal cord is not uniform at different vertebral levels. The dura to spinal cord distance may be a critical factor in avoiding the potential for neurological injury caused by needle trauma after a dural puncture. Typically, the greater the dura to spinal cord distance, the larger the potential safety margin. The objective of our study is to measure dura to spinal cord distance at two thoracic levels T6 -7 , T9 -10 , and one lumbar level L1 -2 using MRI images. METHODS Eighty-eight children under the age of 8 years old qualified for the study. The distance from dural side of ligamentum flavum to the posterior margin of the spinal cord was defined as dura to spinal cord distance. Sagittal T2 -weighted images of the thoracic and lumbar spine were used to measure the dura to spinal cord distance at the T6-7 , T9-10 , and L1-2 interspaces. Measurements were taken perpendicular to long axis of the vertebral body at each level. RESULTS The dura to spinal cord distance was 5.9 ± 1.6 mm at T6-7 (range: 1.4-9.9 mm), 5.0 ± 1.6 mm at T9-10 (1.2-8.1 mm), and 3.6 ± 1.2 mm at L1-2 (1.2-6.8 mm). There were no evident differences in dura to spinal cord distance by gender, age, height, or weight. CONCLUSION The present study reports that the largest dura to spinal cord distance is found at the T5-6 level, and the shortest dura to spinal cord distance at the L1-2 level. There appears to be substantially more room in the dorsal subarachnoid space at the thoracic level. The risk of spinal cord damage resulting from accidental epidural needle advancement may be greater in the lumbar region due to a more dorsal location of the spinal cord in the vertebral canal compared to the thoracic region.
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Affiliation(s)
- Tariq Wani
- Department of Anesthesia, King Fahad Medical City, Riyadh, Saudi Arabia.,Department of Anesthesiology and Pain Medicine, Nationwide Children's Hospital, Columbus, OH, USA
| | - Ralph Beltran
- Department of Anesthesiology and Pain Medicine, Nationwide Children's Hospital, Columbus, OH, USA
| | - Giorgio Veneziano
- Department of Anesthesiology and Pain Medicine, Nationwide Children's Hospital, Columbus, OH, USA
| | - Faris AlGhamdi
- Department of Anesthesia, King Fahad Medical City, Riyadh, Saudi Arabia
| | - Hatem Azzam
- Department of Anesthesia, King Fahad Medical City, Riyadh, Saudi Arabia
| | - Nahida Akhtar
- Department of Anesthesia, King Fahad Medical City, Riyadh, Saudi Arabia
| | - Dmitry Tumin
- Department of Anesthesiology and Pain Medicine, Nationwide Children's Hospital, Columbus, OH, USA
| | - Yasser Majid
- Department of Anesthesia, King Fahad Medical City, Riyadh, Saudi Arabia
| | - Joseph D Tobias
- Department of Anesthesiology and Pain Medicine, Nationwide Children's Hospital, Columbus, OH, USA
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Mi J, Sun XJ, Zhang K, Zhao CQ, Zhao J. Prediction of MRI findings including disc injury and posterior ligamentous complex injury in neurologically intact thoracolumbar burst fractures by the parameters of vertebral body damage on CT scan. Injury 2018; 49:272-278. [PMID: 29290375 DOI: 10.1016/j.injury.2017.12.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 12/04/2017] [Accepted: 12/12/2017] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To formulate radiological indexes based on CT for further MRI examination to detect posterior ligamentous complex injury (PLC) or disc injury in thoracolumbar burst fractures without neurological deficit in the emergent setting. MATERIALS AND METHODS Patients with a single thoracolumbar burst fracture and no neurological deficit were included into this study. Radiological indexes on CT included canal compromise (CC), anterior and posterior vertebral height ratio (PVH and AVH ratio), local kyphosis (LK) and regional kyphosis (RK). PLC and disc injury were assessed on MRI. Statistical analysis was performed to identify the predictive power for radiological indexes for any MRI findings either or both disc and PLC injury. RESULTS Eighty-four patients were included in this study. According to MRI, patients with no PLC and disc injury were allocated into MRI finding negative group, others were defined as positive group. There was no significant difference in AVH ratio, PVH ratio and RK between these two groups. The CC and LK were significant higher in positive group than that in negative group (p < 0.001).The areas under receiver operating characteristic curve were 0.826 and 0.893 for CC and LK respectively and without significant difference. The best thresholds for CC and LK were 0.19 (sensitivity: 69.4%; specificity: 87.5%) and 14.00° (sensitivity: 83.3%; specificity: 83.3%), respectively. CONCLUSION The presence of CC > 0.19 and/or LK > 14.00° on CT scan can predict MRI findings including PLC and disc injury. These thresholds may be the guideline for MRI examination in patients with neurologically intact thoracolumbar burst fracture in the emergent condition.
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Affiliation(s)
- Jie Mi
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Xiao-Jiang Sun
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Kai Zhang
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Chang-Qing Zhao
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Jie Zhao
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China.
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Evaluation of vertebral body fractures using susceptibility-weighted magnetic resonance imaging. Eur Radiol 2017; 28:2228-2235. [DOI: 10.1007/s00330-017-5195-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 11/10/2017] [Accepted: 11/15/2017] [Indexed: 02/08/2023]
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Hashish R, Badday H. Frequency of acute cervical and lumbar pathology in common types of motor vehicle collisions: a retrospective record review. BMC Musculoskelet Disord 2017; 18:437. [PMID: 29121894 PMCID: PMC5680606 DOI: 10.1186/s12891-017-1797-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Accepted: 11/01/2017] [Indexed: 11/30/2022] Open
Abstract
Background There are more than 5 million motor vehicle collisions annually in the United States, resulting in more than 2 million injured occupants. The most common types of collisions are head-on impacts, rear-ends, side-swipes, and t-bones, whilst the most common injury sites are the cervical and lumbar spine. The purpose of this retrospective record review was to examine the differences in frequency of cervical and lumbar pathology across and between these common collision types. Methods Nine-hundred and three patients were included in this analysis, 88 of whom described being in a head-on collision, 546 in a rear-end, 123 in a side-swipe, and 146 in a t-bone. Four diagnoses were examined, two each for the cervical and lumbar regions: disc derangement and radiculitis. Pearson’s Chi-squared contingency tables were used to test whether there were differences in clinical diagnosis frequencies across collision type, while Marascuilo’s post hoc multiple proportion comparisons were conducted to determine inter-group differences. Results There were significant differences across collision type for cervical disc derangement (p < 0.0001), cervical radiculitis (p < 0.00001), lumbar disc derangement (p = 0.0002) and lumbar radiculitis (p < 0.00001). There were also significant differences in pathology frequency between collision types. Conclusions Symptomatic cervical disc derangements were more common among patients who were involved in aside-swipe, whereas symptomatic lumbar disc derangements were more common among those in head-on or side-swipe collisions. Expanded controlled prospective studies are encouraged to better understand the mechanisms of injury and determine radiculitis tolerance limits. Electronic supplementary material The online version of this article (10.1186/s12891-017-1797-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Rami Hashish
- National Biomechanics Institute, 2447 Pacific Coast Highway, Suite 200, Hermosa Beach, CA, 90254, USA.
| | - Hasan Badday
- Pacific Pain & Regenerative Medicine, 20301 Southwest Birch Street, Suite 102, Newport Beach, CA, 92660, USA
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Abstract
Neuroradiology with computed tomography (CT) and magnetic resonance imaging (MRI) is essential for the initial evaluation of patients with a clinical suspicion of brain and spine disorders. Morphologic imaging is required to obtain a probable diagnosis to support the treatment decisions in pre- and perinatal disorders, vascular diseases, traumatic injuries, metabolic disorders, epilepsy, infection/inflammation, neurodegenerative disorders, degenerative spinal disease, and tumors of the central nervous system. Different postprocessing tools are increasingly used for three-dimensional visualization and quantification of lesions. Additional information is provided by angiographic methods and physiologic CT and MRI techniques, such as diffusion MRI, perfusion CT/MRI, MR spectroscopy, functional MRI, tractography, and nuclear medicine imaging methods. Positron emission tomography (PET) is now integrated with CT (PET/CT), and PET/MR scanners have recently also been introduced. These hybrid techniques facilitate the co-registration of lesions with different modalities, and give new possibilites for functional imaging. Repeated imaging is increasingly performed for treatment monitoring. The improved imaging techniques together with the neuropathologic diagnosis after biopsy or surgery allow more personalized treatment of the patient. Neuroradiology also includes endovascular treatment of aneurysms and arteriovenous malformations as well as thrombectomy in acute stroke. This catheter-based treatment has replaced invasive neurosurgery in many cases.
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Wani TM, Rafiq M, Nazir A, Azzam HA, Al Zuraigi U, Tobias JD. Estimation of the depth of the thoracic epidural space in children using magnetic resonance imaging. J Pain Res 2017; 10:757-762. [PMID: 28405171 PMCID: PMC5378467 DOI: 10.2147/jpr.s124123] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND The estimation of the distance from the skin to the thoracic epidural space or skin to epidural depth (SED) may increase the success rate and decrease the incidence of complications during placement of a thoracic epidural catheter. Magnetic resonance imaging (MRI) is the most comprehensive imaging modality of the spine, allowing for the accurate determination of tissue spaces and distances. The present study uses MRI-derived measurements to measure the SED and define the ratio between the straight and inclined SEDs at two thoracic levels (T6-7 and T9-10) in children. METHODS The T2-weighed sagittal MRI images of 109 children, ranging in age from 1 month to 8 years, undergoing radiological evaluation unrelated to spine pathology were assessed. The SEDs (inclined and straight) were determined, and a comparison between the SEDs at two thoracic levels (T6-7 and T9-10) was made. Univariate and multivariate linear regression models were used to assess the relationship of the inclined thoracic T6-7 and T9-10 SED measurements with age, height, and weight. RESULTS Body weight demonstrated a stronger association with the SED than did the age or height with R2 values of 0.6 for T6-7 and 0.5 for T9-10. The formulae describing the relationship between the weight and the inclined SED were T6-7 inclined (mm) = 7 + 0.9 × kg and T9-10 inclined (mm) = 7 + 0.8 × kg. CONCLUSION The depth of the pediatric thoracic epidural space shows a stronger correlation with weight than with age or height. Based on the MRI data, the predictive weight-based formulas can serve as guide to clinicians for placement of thoracic epidural catheters.
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Affiliation(s)
- Tariq M Wani
- Department of Anesthesia, King Fahad Medical City, Riyadh, Saudi Arabia; Department of Anesthesiology and Pain Medicine, Nationwide Children's Hospital, Columbus, OH, USA
| | - Mahmood Rafiq
- Department of Anesthesia, King Fahad Medical City, Riyadh, Saudi Arabia
| | - Arif Nazir
- Department of Anesthesia, King Fahad Medical City, Riyadh, Saudi Arabia
| | - Hatem A Azzam
- Department of Anesthesia, King Fahad Medical City, Riyadh, Saudi Arabia
| | - Usama Al Zuraigi
- Department of Anesthesia, King Fahad Medical City, Riyadh, Saudi Arabia
| | - Joseph D Tobias
- Department of Anesthesiology and Pain Medicine, Nationwide Children's Hospital, Columbus, OH, USA
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