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Bozzo A, Tsui JMG, Bhatnagar S, Forsberg J. Deep Learning and Multimodal Artificial Intelligence in Orthopaedic Surgery. J Am Acad Orthop Surg 2024; 32:e523-e532. [PMID: 38652882 PMCID: PMC11075751 DOI: 10.5435/jaaos-d-23-00831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 02/13/2024] [Accepted: 03/01/2024] [Indexed: 04/25/2024] Open
Abstract
This review article focuses on the applications of deep learning with neural networks and multimodal neural networks in the orthopaedic domain. By providing practical examples of how artificial intelligence (AI) is being applied successfully in orthopaedic surgery, particularly in the realm of imaging data sets and the integration of clinical data, this study aims to provide orthopaedic surgeons with the necessary tools to not only evaluate existing literature but also to consider AI's potential in their own clinical or research pursuits. We first review standard deep neural networks which can analyze numerical clinical variables, then describe convolutional neural networks which can analyze image data, and then introduce multimodal AI models which analyze various types of different data. Then, we contrast these deep learning techniques with related but more limited techniques such as radiomics, describe how to interpret deep learning studies, and how to initiate such studies at your institution. Ultimately, by empowering orthopaedic surgeons with the knowledge and know-how of deep learning, this review aspires to facilitate the translation of research into clinical practice, thereby enhancing the efficacy and precision of real-world orthopaedic care for patients.
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Affiliation(s)
- Anthony Bozzo
- From the Division of Orthopaedic Surgery, McGill University, Canada (Bozzo), the Division of Radiation Oncology, McGill University, Canada (Tsui), the Department of Epidemiology and Biostatistics, Department of Diagnostic Radiology, McGill University, Canada (Bhatnagar), and the Memorial Sloan Kettering Cancer Center (Forsberg)
| | - James M. G. Tsui
- From the Division of Orthopaedic Surgery, McGill University, Canada (Bozzo), the Division of Radiation Oncology, McGill University, Canada (Tsui), the Department of Epidemiology and Biostatistics, Department of Diagnostic Radiology, McGill University, Canada (Bhatnagar), and the Memorial Sloan Kettering Cancer Center (Forsberg)
| | - Sahir Bhatnagar
- From the Division of Orthopaedic Surgery, McGill University, Canada (Bozzo), the Division of Radiation Oncology, McGill University, Canada (Tsui), the Department of Epidemiology and Biostatistics, Department of Diagnostic Radiology, McGill University, Canada (Bhatnagar), and the Memorial Sloan Kettering Cancer Center (Forsberg)
| | - Jonathan Forsberg
- From the Division of Orthopaedic Surgery, McGill University, Canada (Bozzo), the Division of Radiation Oncology, McGill University, Canada (Tsui), the Department of Epidemiology and Biostatistics, Department of Diagnostic Radiology, McGill University, Canada (Bhatnagar), and the Memorial Sloan Kettering Cancer Center (Forsberg)
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Bozzo A, Aysola V, Yeung CM, Healey JH, Prince DE. Distraction Osteogenesis Reconstruction Following Resection of Bone Sarcomas: Surgical, Functional, and Oncological Outcomes from a Prospective Trial Analysis. J Bone Joint Surg Am 2024:00004623-990000000-01095. [PMID: 38728434 DOI: 10.2106/jbjs.23.00707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/12/2024]
Abstract
BACKGROUND While sustainable long-term function has been established for biological reconstruction with distraction osteogenesis (DO) following osseous resections, there is a paucity of published data informing surgeons and patients on important milestones in the reconstructive process. The objectives of this study were to determine when to expect complete bone healing and full weight-bearing as well as to quantify the influence of chemotherapy on the osseous regeneration process. METHODS Prospectively, pathological and clinical data were collected for 30 consecutive patients who underwent primary or secondary DO-based reconstruction following osseous resection from 2018 to 2021. Serial radiographs indicated the times to cortex formation and full union. An unpaired t test was used to compare the time required for full bone remodeling of segments transported with and without concurrent chemotherapy. RESULTS The average resection length was 13.6 cm (range, 4 to 22 cm). Patients underwent an average of 6.1 procedures (range, 1 to 14 procedures). Half (50%) of all procedures were planned, while half were unplanned procedures. All patients achieved full, independent weight-bearing at a median of 12 months (interquartile range [IQR], 9 to 16 months). For the 34 segments transported concurrently with chemotherapy, the mean bone healing index (BHI) was 2.3 ± 0.7, and the mean BHI was 1.2 ± 0.4 for the 25 segments without chemotherapy at any point during their transport (p < 0.0001). CONCLUSIONS All 30 patients achieved full bone healing and independent weight-bearing at a median of 1 year postoperatively and continued to show functional improvement afterward. Surgeons and patients can expect bone healing to be nearly twice as fast for segments transported after completion of systemic chemotherapy compared with segments transported concurrently with adjuvant chemotherapy. LEVEL OF EVIDENCE Therapeutic Level II. See Instructions for Authors for a complete description of levels of evidence.
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Affiliation(s)
- Anthony Bozzo
- Orthopaedic Service of the Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY
- Orthopedic Oncology, McGill University, Montreal, Canada
| | - Varun Aysola
- Orthopaedic Service of the Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Caleb M Yeung
- Orthopaedic Service of the Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY
| | - John H Healey
- Orthopaedic Service of the Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Daniel E Prince
- Orthopaedic Service of the Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY
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Groszman L, Hubermann JA, Kooner P, Alamiri N, Bozzo A, Aoude A. The Impact of Adjunct Medical Therapy on Survival after Spine Metastasis: A Systematic Review and Pooled Data Analysis. Cancers (Basel) 2024; 16:1425. [PMID: 38611103 PMCID: PMC11011004 DOI: 10.3390/cancers16071425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 03/30/2024] [Accepted: 03/31/2024] [Indexed: 04/14/2024] Open
Abstract
Targeted therapy has greatly improved the outlook for patients with spinal metastatic cancers. Scoring systems like the Tokuhashi or Tomita scores are commonly used to predict prognosis and inform surgical decisions, but they are outdated and fail to consider recent advancements. We aimed to investigate the current state of the literature and treatment options pertaining to advancements in targeted therapy compared to other forms of medical management for metastatic spinal tumors. This study represents the first comprehensive systematic review that encompasses the most common primary cancers that metastasize to the spine and evaluates the median overall survival (mOS) across five different medical treatment modalities as well as surgical intervention. Additionally, our study analyzes the tumor receptor status in conjunction with these treatments. A PubMed search was conducted, and according to the PRISMA guidelines, 28 articles out of 1834 met the inclusion criteria. The pooled data analysis highlighted the superior efficacy of targeted therapy, evidenced by a significant improvement in the mOS and lower hazard ratios in patients with lung and breast cancers who received targeted therapy compared to those who did not. Our study provides valuable insights into the recent advancements in the medical management of metastatic spinal tumors. Future indications include incorporating this literature into personalized treatment approaches for metastatic spinal tumors.
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Affiliation(s)
| | | | | | | | | | - Ahmed Aoude
- Department of Orthopaedic Surgery, McGill University Health Centre, Montreal, QC H4A 3J1, Canada; (L.G.); (J.A.H.); (N.A.)
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Deng J, Heybati K, Park YJ, Zhou F, Bozzo A. Artificial intelligence in clinical practice: A look at ChatGPT. Cleve Clin J Med 2024; 91:173-180. [PMID: 38429005 DOI: 10.3949/ccjm.91a.23070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2024]
Affiliation(s)
- Jiawen Deng
- Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Kiyan Heybati
- Mayo Clinic Alix School of Medicine, Jacksonville, FL
| | - Ye-Jean Park
- Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Fangwen Zhou
- Faculty of Health Sciences and Faculty of Engineering, McMaster University, Hamilton, ON, Canada
| | - Anthony Bozzo
- Orthopedic Oncology, McGill University, Montréal, QC, Canada
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Talbot M, Gear M, Young J, Milner D, Bunting A, Bozzo A. Risk assessment of aviators with a total hip arthroplasty. BMJ Mil Health 2023:e002557. [PMID: 37844962 DOI: 10.1136/military-2023-002557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Accepted: 09/11/2023] [Indexed: 10/18/2023]
Affiliation(s)
- Max Talbot
- Department of National Defence and the Canadian Armed Forces, Montréal, Québec, Canada
- Department of Surgery, McGill University Health Centre, Montréal, Québec, Canada
| | - M Gear
- Department of National Defence and the Canadian Armed Forces, Ottawa, Ontario, Canada
| | - J Young
- Department of National Defence and the Canadian Armed Forces, Ottawa, Ontario, Canada
| | - D Milner
- Department of National Defence and the Canadian Armed Forces, Ottawa, Ontario, Canada
| | - A Bunting
- Department of Surgery, McGill University Health Centre, Montréal, Québec, Canada
| | - A Bozzo
- Department of Surgery, McGill University Health Centre, Montréal, Québec, Canada
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Bozzo A, Yeung CM, Van De Sande M, Ghert M, Healey JH. Operative Treatment and Outcomes of Pediatric Patients with an Extremity Bone Tumor: A Secondary Analysis of the PARITY Trial Data. J Bone Joint Surg Am 2023; 105:65-72. [PMID: 37466582 DOI: 10.2106/jbjs.22.01231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
BACKGROUND Osteosarcoma and Ewing sarcoma are the 2 most common primary bone sarcomas, occurring predominantly in pediatric patients, with the incidence of osteosarcoma correlating with periods of peak bone-growth velocity. Although survival outcomes have plateaued over the past several decades, ongoing treatment advances have improved function, decreased infection rates, and improved other clinical outcomes in patients with bone tumors. Recently, the Prophylactic Antibiotic Regimens in Tumor Surgery (PARITY) trial addressed the serious problem of surgical site infection (SSI) and the lack of consensus regarding the appropriate prophylactic postoperative antibiotic regimen. The objective of the present secondary analysis of the PARITY trial was to characterize the modern treatment and surgical and oncologic outcomes of pediatric patients with bone tumors at 1 year postoperatively. METHODS The PARITY trial included patients ≥12 years old with a bone tumor or soft-tissue sarcoma that was invading the femur or tibia, necessitating osseous resection and endoprosthetic reconstruction. This pediatric subanalysis of the PARITY trial data included all PARITY patients ≤18 years old. As in the main PARITY study, patients were randomized to either a 5-day or 1-day course of postoperative antibiotic prophylaxis. The primary outcome measure was the development of an SSI within 1 year, and secondary outcomes included antibiotic-related adverse events, unplanned additional operations, local recurrence, metastasis, and death. RESULTS A total of 151 patients were included. An adjudicated SSI occurred in 27 patients (17.9%). There was no difference in the rate of any SSI between the 5-day and 1-day antibiotic groups (hazard ratio [HR], 0.92; 95% confidence interval [CI], 0.4 to 1.9; p = 0.82). Antibiotic-related complications occurred in 13 patients (8.6%), with no difference noted between groups (HR, 0.46; 95% CI, 0.2 to 1.4; p = 0.18). A total of 45 patients (29.8%) required a return to the operating room within the first postoperative year, which corresponded with a 68.8% reoperation-free rate of survival at 1 year when accounting for competing risks. The most common reason for reoperation was infection (29 of 45; 64.4%). A total of 7 patients (4.6%) required subsequent amputation of the operative extremity, and an additional 6 patients (4.0%) required implant revision within 12 months. A total of 36 patients (23.8%) developed metastases, and 6 patients (4.0%) developed a local recurrence during the first postoperative year. A total of 11 patients (7.3%) died during the study period. There were no significant differences in oncologic outcomes between the 5-day and 1-day antibiotic groups (HR, 0.97; 95% CI, 0.5-1.8; p = 0.92). CONCLUSIONS There were no significant differences in surgical or oncologic outcomes between pediatric patients who underwent a 1-day versus 5-day antibiotic regimen following endoprosthetic reconstruction in the PARITY trial. Surgeons should be aware of and counsel patients and caregivers regarding the 30% rate of reoperation and the risks of infection (17.9%), death (7.3%), amputation (4.6%), and implant revision (4%) within the first postoperative year. LEVEL OF EVIDENCE Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence.
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Affiliation(s)
- Anthony Bozzo
- Division of Musculoskeletal Oncology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Caleb M Yeung
- Division of Musculoskeletal Oncology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Michiel Van De Sande
- Department of Orthopedic Surgery, Leiden University Medical Center, Leiden, the Netherland
| | - Michelle Ghert
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
| | - John H Healey
- Division of Musculoskeletal Oncology, Memorial Sloan Kettering Cancer Center, New York, NY
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Gazendam A, Bozzo A, Ekhtiari S, Kruse C, Hiasat N, Tushinski D, Bhandari M. Short-term outcomes vary by surgical approach in total hip arthroplasty: a network meta-analysis. Arch Orthop Trauma Surg 2022; 142:2893-2902. [PMID: 34410479 DOI: 10.1007/s00402-021-04131-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Accepted: 08/15/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND The direct anterior approach (DAA) has increased in popularity in recent years. Proponents cite its muscle-sparing approach and purported reduction in pain and improvement in function when compared to the traditional surgical approaches. There remains controversy surrounding the validity of these claims. The objective of this study was to compare the common total hip surgical approaches in terms of pain scores, functional outcomes, opioid use and complications within the first 12 weeks postoperatively. METHODS A network meta-analysis of randomized controlled trials (RCT) comparing postoperative outcomes of different surgical approaches in primary THA up to 12 weeks was performed. PubMed, MEDLINE, Embase, Web of Science and SCOPUS were systematically searched from inception to May 2020. Outcomes included pain scores, functional outcome scores, length of stay (LOS), complications and opioid consumption. RESULTS Twenty-five RCTs (n = 2339) were included. The DAA demonstrated statistically significant improvement in Harris Hip Scores at 6 weeks when compared to the posterior and direct lateral approaches. The DAA reduced pain scores on postoperative day 2 and at 2 weeks compared to the direct lateral approach. The anterolateral approach was found to have a significantly shorter LOS compared to the other major surgical approaches. The differences in functional outcomes or pain scores did not surpass conventional cutoffs for a minimal clinically important difference. CONCLUSION The DAA led to functional improvements at 6 weeks compared to the posterior and direct lateral approaches and reduced postoperative pain compared to the direct lateral approach. However, these improvements failed to reach clinical significance. All major surgical approaches led to large improvements in function by 12 weeks with relatively low complication rates. Whether a short-term statistically significant improvement in function is sufficiently patient important to recommend DAA as a standard remains uncertain.
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Affiliation(s)
- Aaron Gazendam
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, St. Joseph's Hospital, Room G522, 50 Charlton Avenue East, Hamilton, ON, L8N 4A6, Canada.
| | - Anthony Bozzo
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, St. Joseph's Hospital, Room G522, 50 Charlton Avenue East, Hamilton, ON, L8N 4A6, Canada
| | - Seper Ekhtiari
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, St. Joseph's Hospital, Room G522, 50 Charlton Avenue East, Hamilton, ON, L8N 4A6, Canada
| | - Colin Kruse
- McMaster Medical School, McMaster University, Hamilton, ON, Canada
| | - Nancy Hiasat
- Near East University Hospital, North Nicosia, Turkey
| | - Daniel Tushinski
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, St. Joseph's Hospital, Room G522, 50 Charlton Avenue East, Hamilton, ON, L8N 4A6, Canada
| | - Mohit Bhandari
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, St. Joseph's Hospital, Room G522, 50 Charlton Avenue East, Hamilton, ON, L8N 4A6, Canada
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Nayan M, Salari K, Bozzo A, Ganglberger W, Lu G, Carvalho F, Gusev A, Schneider A, Westover BM, Feldman AS. A machine learning approach to predict progression on active surveillance for prostate cancer. Urol Oncol 2022; 40:161.e1-161.e7. [PMID: 34465541 PMCID: PMC8882704 DOI: 10.1016/j.urolonc.2021.08.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 08/06/2021] [Indexed: 01/03/2023]
Abstract
PURPOSE Robust prediction of progression on active surveillance (AS) for prostate cancer can allow for risk-adapted protocols. To date, models predicting progression on AS have invariably used traditional statistical approaches. We sought to evaluate whether a machine learning (ML) approach could improve prediction of progression on AS. PATIENTS AND METHODS We performed a retrospective cohort study of patients diagnosed with very-low or low-risk prostate cancer between 1997 and 2016 and managed with AS at our institution. In the training set, we trained a traditional logistic regression (T-LR) classifier, and alternate ML classifiers (support vector machine, random forest, a fully connected artificial neural network, and ML-LR) to predict grade-progression. We evaluated model performance in the test set. The primary performance metric was the F1 score. RESULTS Our cohort included 790 patients. With a median follow-up of 6.29 years, 234 developed grade-progression. In descending order, the F1 scores were: support vector machine 0.586 (95% CI 0.579 - 0.591), ML-LR 0.522 (95% CI 0.513 - 0.526), artificial neural network 0.392 (95% CI 0.379 - 0.396), random forest 0.376 (95% CI 0.364 - 0.380), and T-LR 0.182 (95% CI 0.151 - 0.185). All alternate ML models had a significantly higher F1 score than the T-LR model (all p <0.001). CONCLUSION In our study, ML methods significantly outperformed T-LR in predicting progression on AS for prostate cancer. While our specific models require further validation, we anticipate that a ML approach will help produce robust prediction models that will facilitate individualized risk-stratification in prostate cancer AS.
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Affiliation(s)
- Madhur Nayan
- Department of Urology, Massachusetts General Hospital, Boston, Massachusetts,Corresponding author. Tel.: 617-726-8078; fax: 617-643-8525, (M. Nayan)
| | - Keyan Salari
- Department of Urology, Massachusetts General Hospital, Boston, Massachusetts,Broad Institute of Harvard and MIT, Cambridge, Massachusetts
| | - Anthony Bozzo
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
| | | | - Gordan Lu
- Department of Urology, Massachusetts General Hospital, Boston, Massachusetts
| | - Filipe Carvalho
- Department of Urology, Massachusetts General Hospital, Boston, Massachusetts
| | - Andrew Gusev
- Department of Urology, Massachusetts General Hospital, Boston, Massachusetts
| | - Adam Schneider
- Department of Urology, Massachusetts General Hospital, Boston, Massachusetts
| | - Brandon M. Westover
- Department of Neurology, Massachusetts General Hospital, Boston, Massachusetts
| | - Adam S. Feldman
- Department of Urology, Massachusetts General Hospital, Boston, Massachusetts
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Giglio V, Schneider P, Bond Z, Madden K, McKay P, Bozzo A, Bhandari M, Ghert M. Prevalence of gender-based and sexual harassment within orthopedic surgery in Canada. Can J Surg 2022; 65:E45-E51. [PMID: 35086850 PMCID: PMC8802889 DOI: 10.1503/cjs.013120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/09/2021] [Indexed: 11/11/2022] Open
Abstract
Background: Gender-based and sexual harassment are prevalent in the medical profession. We aimed to quantify the prevalence of such behaviours within orthopedic surgery in Canada and to identify any risk factors for experiencing gender-based or sexual harassment in the workplace. Methods: In collaboration with the Canadian Orthopaedic Association, we conducted a Canada-wide email questionnaire survey in June 2019 of all orthopedic surgeons registered with the Canadian Orthopaedic Association and the Canadian Orthopaedic Residents’ Association. The development of our questionnaire was informed by a review of the literature and published surveys on gender-based and sexual harassment, and consultation with researchers in intimate partner violence. We conducted a multivariable logistic regression analysis to identify risk factors for harassment. Results: Of the 1783 surgeons invited to participate, 465 returned the questionnaire (response rate 26.1%); the response rate was 48.1% for females and 22.1% for males. Overall, 331/433 respondents (76.4%, 95% confidence interval [CI] 72%–80%) and 315/423 respondents (74.5%, 95% CI 70%–78%) reported having experienced at least 1 occurrence of gender-based and sexual harassment, respectively. Women were significantly more likely than men to have experienced both gender-based and sexual harassment (odds ratio [OR] 16.2, 95% CI 4.8–54.0, and OR 2.2, 95% CI 1.2–4.0, respectively). Respondents who identified as nonwhite were significantly less likely than those who identified as white to have experienced gender-based harassment (OR 0.5, 95% CI 0.3–0.99). Conclusion: The prevalence of gender-based and sexual harassment is high within Canadian orthopedic surgery, and women are at highest risk for experiencing harassment. The results may provide the impetus for orthopedic societies to develop action plans and to re-examine and enforce policies to address these damaging behaviours appropriately.
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Affiliation(s)
- Victoria Giglio
- From the Department of Surgery, McMaster University, Hamilton, Ont. (Giglio, Schneider, Bond, Madden, McKay, Bozzo, Bhandari); the Research Institute, St. Joseph's Healthcare Hamilton, Hamilton, Ont. (Madden); the Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ont. (Bhandari); and the Juravinski Hospital and Cancer Centre, Hamilton Health Sciences, Hamilton, Ont. (Ghert)
| | - Patricia Schneider
- From the Department of Surgery, McMaster University, Hamilton, Ont. (Giglio, Schneider, Bond, Madden, McKay, Bozzo, Bhandari); the Research Institute, St. Joseph's Healthcare Hamilton, Hamilton, Ont. (Madden); the Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ont. (Bhandari); and the Juravinski Hospital and Cancer Centre, Hamilton Health Sciences, Hamilton, Ont. (Ghert)
| | - Zoe Bond
- From the Department of Surgery, McMaster University, Hamilton, Ont. (Giglio, Schneider, Bond, Madden, McKay, Bozzo, Bhandari); the Research Institute, St. Joseph's Healthcare Hamilton, Hamilton, Ont. (Madden); the Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ont. (Bhandari); and the Juravinski Hospital and Cancer Centre, Hamilton Health Sciences, Hamilton, Ont. (Ghert)
| | - Kim Madden
- From the Department of Surgery, McMaster University, Hamilton, Ont. (Giglio, Schneider, Bond, Madden, McKay, Bozzo, Bhandari); the Research Institute, St. Joseph's Healthcare Hamilton, Hamilton, Ont. (Madden); the Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ont. (Bhandari); and the Juravinski Hospital and Cancer Centre, Hamilton Health Sciences, Hamilton, Ont. (Ghert)
| | - Paula McKay
- From the Department of Surgery, McMaster University, Hamilton, Ont. (Giglio, Schneider, Bond, Madden, McKay, Bozzo, Bhandari); the Research Institute, St. Joseph's Healthcare Hamilton, Hamilton, Ont. (Madden); the Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ont. (Bhandari); and the Juravinski Hospital and Cancer Centre, Hamilton Health Sciences, Hamilton, Ont. (Ghert)
| | - Anthony Bozzo
- From the Department of Surgery, McMaster University, Hamilton, Ont. (Giglio, Schneider, Bond, Madden, McKay, Bozzo, Bhandari); the Research Institute, St. Joseph's Healthcare Hamilton, Hamilton, Ont. (Madden); the Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ont. (Bhandari); and the Juravinski Hospital and Cancer Centre, Hamilton Health Sciences, Hamilton, Ont. (Ghert)
| | - Mohit Bhandari
- From the Department of Surgery, McMaster University, Hamilton, Ont. (Giglio, Schneider, Bond, Madden, McKay, Bozzo, Bhandari); the Research Institute, St. Joseph's Healthcare Hamilton, Hamilton, Ont. (Madden); the Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ont. (Bhandari); and the Juravinski Hospital and Cancer Centre, Hamilton Health Sciences, Hamilton, Ont. (Ghert)
| | - Michelle Ghert
- From the Department of Surgery, McMaster University, Hamilton, Ont. (Giglio, Schneider, Bond, Madden, McKay, Bozzo, Bhandari); the Research Institute, St. Joseph's Healthcare Hamilton, Hamilton, Ont. (Madden); the Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ont. (Bhandari); and the Juravinski Hospital and Cancer Centre, Hamilton Health Sciences, Hamilton, Ont. (Ghert).
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Giglio V, Schneider P, Madden K, Bond Z, McKay P, Bozzo A, Bhandari M, Ghert M. Perpetrators of Gender-Based and Sexual Harassment in the Field of Orthopaedic Surgery. JB JS Open Access 2022; 7:JBJSOA-D-21-00098. [PMID: 35136851 PMCID: PMC8816372 DOI: 10.2106/jbjs.oa.21.00098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Victoria Giglio
- Department of Surgery, McMaster University, Hamilton, Ontario, Canada
| | | | - Kim Madden
- Department of Surgery, McMaster University, Hamilton, Ontario, Canada
- Research Institute, St. Joseph’s Healthcare Hamilton, Hamilton, Ontario, Canada
| | - Zoe Bond
- Department of Surgery, McMaster University, Hamilton, Ontario, Canada
| | - Paula McKay
- Department of Surgery, McMaster University, Hamilton, Ontario, Canada
| | - Anthony Bozzo
- Department of Surgery, McMaster University, Hamilton, Ontario, Canada
| | - Mohit Bhandari
- Department of Surgery, McMaster University, Hamilton, Ontario, Canada
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada
| | - Michelle Ghert
- Juravinski Hospital and Cancer Centre, Hamilton Health Sciences, Hamilton, Ontario, Canada
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Nayan M, Salari K, Bozzo A, Ganglberger W, Carvalho F, Feldman AS, Trinh QD. Predicting survival after radical prostatectomy: Variation of machine learning performance by race. Prostate 2021; 81:1355-1364. [PMID: 34529282 DOI: 10.1002/pros.24233] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Revised: 08/30/2021] [Accepted: 09/01/2021] [Indexed: 11/11/2022]
Abstract
BACKGROUND Robust prediction of survival can facilitate clinical decision-making and patient counselling. Non-Caucasian males are underrepresented in most prostate cancer databases. We evaluated the variation in performance of a machine learning (ML) algorithm trained to predict survival after radical prostatectomy in race subgroups. METHODS We used the National Cancer Database (NCDB) to identify patients undergoing radical prostatectomy between 2004 and 2016. We grouped patients by race into Caucasian, African-American, or non-Caucasian, non-African-American (NCNAA) subgroups. We trained an Extreme Gradient Boosting (XGBoost) classifier to predict 5-year survival in different training samples: naturally race-imbalanced, race-specific, and synthetically race-balanced. We evaluated performance in the test sets. RESULTS A total of 68,630 patients met inclusion criteria. Of these, 57,635 (84%) were Caucasian, 8173 (12%) were African-American, and 2822 (4%) were NCNAA. For the classifier trained in the naturally race-imbalanced sample, the F1 scores were 0.514 (95% confidence interval: 0.513-0.511), 0.511 (0.511-0.512), 0.545 (0.541-0.548), and 0.378 (0.378-0.389) in the race-imbalanced, Caucasian, African-American, and NCNAA test samples, respectively. For all race subgroups, the F1 scores of classifiers trained in the race-specific or synthetically race-balanced samples demonstrated similar performance compared to training in the naturally race-imbalanced sample. CONCLUSIONS A ML algorithm trained using NCDB data to predict survival after radical prostatectomy demonstrates variation in performance by race, regardless of whether the algorithm is trained in a naturally race-imbalanced, race-specific, or synthetically race-balanced sample. These results emphasize the importance of thoroughly evaluating ML algorithms in race subgroups before clinical deployment to avoid potential disparities in care.
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Affiliation(s)
- Madhur Nayan
- Department of Urology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Keyan Salari
- Department of Urology, Massachusetts General Hospital, Boston, Massachusetts, USA
- Broad Institute of Harvard and MIT, Cambridge, Massachusetts, USA
| | - Anthony Bozzo
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
| | - Wolfgang Ganglberger
- Department of Neurology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Filipe Carvalho
- Department of Urology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Adam S Feldman
- Department of Urology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Quoc-Dien Trinh
- Department of Urology, Brigham and Women's Hospital, Boston, Massachusetts, USA
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Ekhtiari S, Bozzo A, Madden K, Winemaker MJ, Adili A, Wood TJ. Unicompartmental Knee Arthroplasty: Survivorship and Risk Factors for Revision: A Population-Based Cohort Study with Minimum 10-Year Follow-up. J Bone Joint Surg Am 2021; 103:00004623-990000000-00342. [PMID: 34547009 DOI: 10.2106/jbjs.21.00346] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Operative management for end-stage knee osteoarthritis (OA) primarily consists of arthroplasty. Total knee arthroplasty (TKA) is the so-called gold standard for multicompartmental OA. In selected patients, specifically those with unicompartmental OA and no definite contraindications, realignment osteotomies and unicompartmental knee arthroplasty (UKA) are viable options. UKA offers several advantages over TKA, including preservation of both cruciate ligaments, faster recovery, and less osseous resection. The purpose of this study was to determine the survivorship of UKAs and risk factors for all-cause revision surgery in patients with a minimum follow-up of 10 years in a large population-based database. METHODS We performed a population-based cohort study using linked administrative databases in Ontario, Canada. We identified all UKAs performed from January 2002 through December 2006. All patients had a minimum 10-year follow-up. Demographic data and outcomes were summarized using descriptive statistics. We used a Cox proportional hazards model with the Fine and Gray method accounting for competing risks such as death to analyze the effect of surgical and patient factors on the risk of revision of UKA. RESULTS A total of 4,385 patients were identified as having undergone primary UKA from 2002 through 2006 in Ontario. Of these patients, 779 underwent revision surgery, for a cumulative risk for all-cause revision of 16.5% at 10 years (95% confidence interval [CI]: 15.4% to 17.7%). Mechanical loosening was the reason for 83.4% of all revisions. Male sex, diabetes, an age younger than 50 years, and cementless implants were significant risk factors for revision surgery. Residence in a rural or urban setting, income quintile, discharge destination, and type of OA were not associated with the risk of revision. Survivorship at 1, 5, 10, and 15 years was 97.2%, 90.5%, 83.5%, and 81.9%, respectively. CONCLUSIONS This study demonstrated a >80% long-term survivorship for UKA based on a large administrative database sample and identified important risk factors for failure including male sex, younger age, diabetes, and cementless fixation. This study found rates of survivorship similar to those previously reported in the literature, while identifying key risk factors for failure. Patient selection has always been identified as a key factor in ensuring successful UKA, and the risk factors identified in this study may help guide decision-making for surgeons and patients dealing with unicompartmental knee OA. LEVEL OF EVIDENCE Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.
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Affiliation(s)
- Seper Ekhtiari
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
| | - Anthony Bozzo
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
| | - Kim Madden
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
- Research Institute of St. Joseph's Healthcare Hamilton, Hamilton, Ontario, Canada
| | - Mitchell J Winemaker
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
- Hamilton Health Sciences, Hamilton, Ontario, Canada
| | - Anthony Adili
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
- Research Institute of St. Joseph's Healthcare Hamilton, Hamilton, Ontario, Canada
| | - Thomas J Wood
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
- Hamilton Health Sciences, Hamilton, Ontario, Canada
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Bozzo A, Deng J, Abbas U, Bhasin R, Deodat M, Wariach S, Sanger S, Axelrod D, Masrouha K, Turcotte R, Wilson D, Ghert M. Which Bone-Modifying Agent is Associated with Better Outcomes in Patients with Skeletal Metastases from Lung Cancer? A Systematic Review and Network Meta-analysis. Clin Orthop Relat Res 2021; 479:2047-2057. [PMID: 33835092 PMCID: PMC8373570 DOI: 10.1097/corr.0000000000001749] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 03/05/2021] [Indexed: 01/31/2023]
Abstract
BACKGROUND Lung cancer is one of the most commonly diagnosed cancers and is the leading cause of cancer-related deaths. Metastatic bone disease occurs in 20% to 40% of patients with lung cancer, and these patients often present with pain or skeletal-related events (SREs) that are associated with decreased survival. Bone-modifying agents such as denosumab or bisphosphonates are routinely used; however, to our knowledge, there has been no quantitative synthesis of randomized controlled trial data to determine the most effective pharmacologic treatment of metastatic bone disease because of lung cancer. QUESTIONS/PURPOSES We aimed to perform a network meta-analysis of randomized trials to identify the bone-modifying agent that is associated with the (1) highest overall survival, (2) longest time to SRE, (3) lowest SRE incidence, and (4) greatest likelihood of pain resolution. METHODS We conducted our study according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses protocol and pre-registered the analysis on PROSPERO (ID: CRD42019124364). We performed a librarian-assisted search of MEDLINE, PubMed, EMBASE, Cochrane Library, and Chinese databases including China National Knowledge Infrastructure and Wanfang Data. We included randomized controlled trials reporting outcomes specifically for patients with lung cancer treated with a bisphosphonate or denosumab. SREs included pathologic fractures, spinal cord compression, hypercalcemia of malignancy, or pain resulting in surgical intervention or radiation therapy. We excluded trials exclusively reporting surrogate outcomes such as changes in bone turnover markers. Screening, data extraction, risk of bias evaluation, and Grading of Recommendations Assessment, Development, and Evaluation evaluations were performed in duplicate. We included 131 randomized controlled trials that evaluated 11,105 patients with skeletal metastases from lung cancer. The network meta-analysis was performed using a frequentist model and the R statistical software. Results are reported as relative risks or mean differences, and the I2 value is reported for heterogeneity. The P-score, a measure of ranking certainty that accounts for standard error, is reported for each outcome. Heterogeneity in the network was considered moderate for overall survival and time to SRE, mild for the incidence of SRE, and low for pain resolution. RESULTS For overall survival, denosumab was ranked above zoledronic acid and estimated to confer a mean of 3.3 months (95% CI 0.3-6.3) of increased overall survival compared with untreated patients (P-score = 89%). For the time to SRE, denosumab was ranked first with a mean of 9.1 additional SRE-free months (95% CI 6.7-11.5) compared with untreated patients (P-score = 99%), while zoledronic acid conferred an additional 4.8 SRE-free months (95% CI 3.6-6.1). Reduction in the incidence of SREs was not different between patients treated with denosumab (relative risk 0.54; 95% CI 0.33-0.87) and those treated with zoledronic acid (relative risk 0.56; 95% CI 0.46-0.67). Patients treated with the combination of ibandronate and systemic therapy were more likely to experience successful pain resolution than untreated patients (relative risk 2.4; 95% CI 1.8-3.2). CONCLUSION In this comprehensive synthesis of all available randomized controlled trial evidence guiding the pharmacologic treatment of bone metastases from lung cancer, denosumab was ranked above zoledronic acid for overall survival and time to SRE and was not different for reducing the incidence of SRE. Both were superior to no treatment for each of these outcomes. Given this, we encourage physicians to consider the use of denosumab or zoledronic acid in treating this patient population. The combination of ibandronate and systemic therapy was the most effective at reducing pain because of metastases. No cost-effectiveness analysis has yet been performed for denosumab and zoledronic acid on patients with metastatic lung cancer, and this represents an avenue for future research. LEVEL OF EVIDENCE Level I, therapeutic study.
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Affiliation(s)
- Anthony Bozzo
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
| | - Jiawen Deng
- Faculty of Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Umaima Abbas
- Faculty of Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Richa Bhasin
- Faculty of Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Marisa Deodat
- Faculty of Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Sajid Wariach
- Faculty of Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Stephanie Sanger
- Faculty of Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Daniel Axelrod
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
| | - Karim Masrouha
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
- Hamilton Health Sciences, Juravinski Hospital and Cancer Center, Hamilton, Ontario, Canada
| | - Robert Turcotte
- Division of Orthopaedic Surgery, McGill University, Montreal, Quebec, Canada
| | - David Wilson
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
- Hamilton Health Sciences, Juravinski Hospital and Cancer Center, Hamilton, Ontario, Canada
| | - Michelle Ghert
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
- Faculty of Health Sciences, McMaster University, Hamilton, Ontario, Canada
- Hamilton Health Sciences, Juravinski Hospital and Cancer Center, Hamilton, Ontario, Canada
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14
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Nayan M, Salari K, Bozzo A, Ganglberger W, Lu G, Carvalho F, Gusev A, Westover B, Feldman A. A machine learning approach to predicting progression on active surveillance for prostate cancer. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)01404-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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15
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Gazendam A, Bozzo A, Schneider P, Giglio V, Wilson D, Ghert M. Recruitment patterns in a large international randomized controlled trial of perioperative care in cancer patients. Trials 2021; 22:219. [PMID: 33743753 PMCID: PMC7981833 DOI: 10.1186/s13063-021-05149-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 02/24/2021] [Indexed: 11/10/2022] Open
Abstract
INTRODUCTION The Prophylactic Antibiotic Regimens in Tumor Surgery (PARITY) randomized controlled trial (RCT) was the first study to prospectively enroll and randomize orthopedic oncology patients in multiple centers internationally. The objective of this study was to describe recruitment patterns, to examine the differences in enrollment across different PARITY sites, and to identify variables associated with differing levels of recruitment. METHODS Data from this study was obtained from the PARITY trial Methods Center and records of correspondence between the Methods Center and recruiting sites. We performed descriptive statistics to report the recruitment patterns over time. We compared recruitment, time to set up, and time to enroll the first patient between North American and international sites, private and public healthcare models, and the presence or absence of research personnel. Two-tailed non-paired t tests were performed to test average monthly recruitment rates between groups. RESULTS A total of 602 patients from 36 North American and 12 international sites were recruited from 2013 to 2019. North American sites were able to become fully enrollment-ready at an average of 19.5 months and international sites at an average of 27 months. Once enrolling, international sites were able to enroll 0.59 patients per/month whereas North American sites averaged a monthly recruitment rate of 0.2 patients/month once enrolling. Sites with research personnel reached enrollment-ready status at an average of 19.3 months and sites without research support at an average of 30.3 months. Once enrolling, the recruitment rate was 0.28 patients/month and 0.2 patients per month for sites with and without research support, respectively. Publicly funded sites had a monthly enrollment of 0.4 patients/month whereas privately funded sites had a monthly enrollment rate of 0.17 patients/month. CONCLUSIONS As a collaborative group, the PARITY investigators increased the pace of recruitment throughout the trial, likely by increasing the number of active sites. The longer time to start-up at international sites may be due to the complex governing regulations of pharmaceutical trials. Nevertheless, international sites should be considered essential as they recruited significantly more patients per month once active. The absence of research support personnel may lead to delays in the time to start-up. The results of the current study will provide guidance for choosing which sites to recruit for participation in future collaborative clinical trials in orthopedic oncology and other surgical specialties. TRIAL REGISTRATION ClinicalTrials.gov NCT01479283 . Prospectively registered on November 24, 2011.
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Affiliation(s)
- Aaron Gazendam
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada. .,Centre of Evidence-Based Orthopaedics, McMaster University, Hamilton, Ontario, Canada.
| | - Anthony Bozzo
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada.,Centre of Evidence-Based Orthopaedics, McMaster University, Hamilton, Ontario, Canada
| | - Patricia Schneider
- Centre of Evidence-Based Orthopaedics, McMaster University, Hamilton, Ontario, Canada
| | - Victoria Giglio
- Centre of Evidence-Based Orthopaedics, McMaster University, Hamilton, Ontario, Canada
| | - David Wilson
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
| | - Michelle Ghert
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada.,Centre of Evidence-Based Orthopaedics, McMaster University, Hamilton, Ontario, Canada
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16
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Giglio V, Schneider P, Madden K, Lin B, Multani I, Baldawi H, Thornley P, Naji L, Levin M, Wang P, Bozzo A, Wilson D, Ghert M. Published randomized controlled trials of surveillance in cancer patients - a systematic review. Oncol Rev 2021; 15:522. [PMID: 34267889 PMCID: PMC8256375 DOI: 10.4081/oncol.2021.522] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 04/09/2021] [Indexed: 01/14/2023] Open
Abstract
With solid tumor cancer survivorship increasing, the number of patients requiring post-treatment surveillance also continues to increase. This highlights the need for evidence-based cancer surveillance guidelines. Ideally, these guidelines would be based on combined high-quality data from randomized controlled trials (RCTs). We present a systematic review of published cancer surveillance RCTs in which we sought to determine the feasibility of data pooling for guideline development. We carried out a systematic search of medical databases for RCTs in which adult patients with solid tumors that had undergone surgical resection with curative intent and had no metastatic disease at presentation, were randomized to different surveillance regimens that assessed effectiveness on overall survival (OS). We extracted study characteristics and primary and secondary outcomes, and assessed risk of bias and validity of evidence with standardized checklist tools. Our search yielded 32,216 articles for review and 18 distinct RCTs were included in the systematic review. The 18 trials resulted in 23 comparisons of surveillance regimens. There was a highlevel of variation between RCTs, including the study populations evaluated, interventions assessed and follow-up periods for the primary outcome. Most studies evaluated colorectal cancer patients (11/18, [61%]). The risk of bias and validity of evidence were variable and inconsistent across studies. This review demonstrated that there is tremendous heterogeneity among RCTs that evaluate effectiveness of different postoperative surveillance regimens in cancer patients, rendering the consolidation of data to inform high-quality cancer surveillance guidelines unfeasible. Future RCTs in the field should focus on consistent methodology and primary outcome definition.
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Affiliation(s)
- Victoria Giglio
- Division of Orthopedic Surgery, Department of Surgery, McMaster University, Hamilton, ON, Canada
| | - Patricia Schneider
- Division of Orthopedic Surgery, Department of Surgery, McMaster University, Hamilton, ON, Canada
| | - Kim Madden
- Division of Orthopedic Surgery, Department of Surgery, McMaster University, Hamilton, ON, Canada
| | - Bill Lin
- Division of Orthopedic Surgery, Department of Surgery, McMaster University, Hamilton, ON, Canada
| | | | - Hassan Baldawi
- Division of Orthopedic Surgery, Department of Surgery, McMaster University, Hamilton, ON, Canada
| | - Patrick Thornley
- Division of Orthopedic Surgery, Department of Surgery, McMaster University, Hamilton, ON, Canada
| | - Leen Naji
- Department of Family Medicine, McMaster University, Hamilton, ON, Canada
| | - Marc Levin
- Michael DeGroote School of Medicine, McMaster University, Hamilton, ON, Canada
| | - Peiyao Wang
- Division of Orthopedic Surgery, Department of Surgery, McMaster University, Hamilton, ON, Canada
| | - Anthony Bozzo
- Division of Orthopedic Surgery, Department of Surgery, McMaster University, Hamilton, ON, Canada
| | - David Wilson
- Hamilton Health Sciences, Juravinski Hospital and Cancer Center, Hamilton, ON, Canada
| | - Michelle Ghert
- Hamilton Health Sciences, Juravinski Hospital and Cancer Center, Hamilton, ON, Canada
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Foote CJ, Tornetta P, Reito A, Al-Hourani K, Schenker M, Bosse M, Coles CP, Bozzo A, Furey A, Leighton R. A Reevaluation of the Risk of Infection Based on Time to Debridement in Open Fractures: Results of the GOLIATH Meta-Analysis of Observational Studies and Limited Trial Data. J Bone Joint Surg Am 2021; 103:265-273. [PMID: 33298796 DOI: 10.2106/jbjs.20.01103] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Open fractures are one of the leading causes of disability worldwide. The threshold time to debridement that reduces the infection rate is unclear. METHODS We searched all available databases to identify observational studies and randomized trials related to open fracture care. We then conducted an extensive meta-analysis of the observational studies, using raw and adjusted estimates, to determine if there was an association between the timing of initial debridement and infection. RESULTS We identified 84 studies (18,239 patients) for the primary analysis. In unadjusted analyses comparing various "late" time thresholds for debridement versus "early" thresholds, there was an association between timing of debridement and surgical site infection (odds ratio [OR] = 1.29, 95% confidence interval [CI] = 1.11 to 1.49, p < 0.001, I2 = 30%, 84 studies, n = 18,239). For debridement performed between 12 and 24 hours versus earlier than 12 hours, the OR was higher in tibial fractures (OR = 1.37, 95% CI = 1.00 to 1.87, p = 0.05, I2 = 19%, 12 studies, n = 2,065), and even more so in Gustilo type-IIIB tibial fractures (OR = 1.46, 95% CI = 1.13 to 1.89, p = 0.004, I2 = 23%, 12 studies, n = 1,255). An analysis of Gustilo type-III fractures showed a progressive increase in the risk of infection with time. Critical time thresholds included 12 hours (OR = 1.51, 95% CI = 1.28 to 1.78, p < 0.001, I2 = 0%, 16 studies, n = 3,502) and 24 hours (OR = 2.17, 95% CI = 1.73 to 2.72, p < 0.001, I2 = 0%, 29 studies, n = 5,214). CONCLUSIONS High-grade open fractures demonstrated an increased risk of infection with progressive delay to debridement. LEVEL OF EVIDENCE Prognostic Level IV. See Instruction for Authors for a complete description of the levels of evidence.
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Affiliation(s)
| | - Paul Tornetta
- Department of Orthopedics, Boston University Medical Center, Boston, Massachusetts
| | - Aleksi Reito
- Tampere University Hospital (TAUH), Tampere, Finland
| | - Khalid Al-Hourani
- Department of Orthopaedics, Royal Infirmary of Edinburgh, Edinburgh, United Kingdom
| | - Mara Schenker
- Orthopedic Trauma Research Unit, Emory University, Atlanta, Georgia
| | - Michael Bosse
- Department of Orthopaedic Surgery, Carolinas Medical Center, Charlotte, North Carolina
| | - Chad P Coles
- Division of Orthopaedics, Dalhousie University, Halifax, Nova Scotia, Canada
| | | | - Andrew Furey
- Division of Orthopaedics, Memorial University, St. John's, Newfoundland, Canada
| | - Ross Leighton
- Division of Orthopaedics, Dalhousie University, Halifax, Nova Scotia, Canada
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18
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Oitment C, Bozzo A, Martin AR, Rienmuller A, Jentzsch T, Aoude A, Thornley P, Ghert M, Rampersaud R. Primary sarcomas of the spine: population-based demographic and survival data in 107 spinal sarcomas over a 23-year period in Ontario, Canada. Spine J 2021; 21:296-301. [PMID: 32949731 DOI: 10.1016/j.spinee.2020.09.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 08/30/2020] [Accepted: 09/06/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND CONTEXT Spinal sarcomas are a rare, heterogeneous group of mesenchymal tumors. Current literature reporting demographic variables and survival information is limited to small case series, and a single registry with variable treatment modalities and time periods. PURPOSE We report on population-level data regarding all spinal sarcomas diagnosed over a 23-year period in Ontario, Canada, for the purposes of calculating incidence and prevalence of these tumors. Secondarily, survival is assessed by tumor type as well as adjuvant therapies during this time period. STUDY DESIGN Retrospective Cohort Study PATIENT SAMPLE: Population-based data from the Institute for Clinical Evaluative Sciences (ICES) between 1993 and 2015. OUTCOME MEASURES Outcome measures include incidence and prevalence of spinal osteosarcoma, Ewing's sarcoma, and chondrosarcoma of the spine, as well as 2-, 5-, 10- and 15-year survival and prevalence of adjuvant therapies. METHODS Utilizing population-based data from the Institute for Clinical Evaluative Sciences (ICES) between 1993 and 2015, ICD codes were searched and available data extracted for the purposes of reporting basic demographic information and calculation of Kaplan Meyer survival curves. Databases include the Ontario Cancer Registry, Discharge Abstract Database, Ontario Health Insurance Plan, National Ambulatory Care Reporting System, Registered Persons DataBase (death) were analyzed. RESULTS One hundred and seven spinal sarcomas were identified, with a mean incidence was 0.38 sarcomas per million population per year, that was stable over time. The mean prevalence was 8.1 sarcomas per million population. The most common diagnosis was Ewing's sarcoma (48 [44.9%] patients), followed by chondrosarcoma (33 [30.8%] patients), and osteosarcoma (26 [24.3%] patients). Chondrosarcoma had the highest survival rates with 77.2% and 64.2% 5- and 10-year survival rates, respectively, followed by Ewing's sarcoma with 48.1% and 44.9% 5 and 10-year survival and osteosarcoma with 36.0% and 30.9% 5- and 10-year survival. CONCLUSIONS Spinal sarcoma is a rare disease with variable survival depending on the histologic diagnosis. This population-level study involves a heterogeneous group of patients with variable stages of disease at presentation and variable treatments. Our data fit with the published literature for survival for those treated conservatively and surgically. Our data show considerable improvement in 5- and 10-year mortality when compared with previous population level studies on earlier patient cohorts, likely reflecting improvements in systemic and surgical treatments.
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Affiliation(s)
- Colby Oitment
- Division of Orthopedic Surgery, Department of Surgery, University of Toronto, Toronto Western Hospital, 237 Barton St E, Hamilton, Ontario L8L2X2, Canada; Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada.
| | - Anthony Bozzo
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
| | - Allan R Martin
- Division of Neurosurgery, Department of Surgery, University of Toronto, Toronto Western Hospital, 237 Barton St E, Hamilton, Ontario L8L2X2, Canada
| | - Anna Rienmuller
- Division of Orthopedic Surgery, Department of Surgery, University of Toronto, Toronto Western Hospital, 237 Barton St E, Hamilton, Ontario L8L2X2, Canada
| | - Thorsten Jentzsch
- Division of Orthopedic Surgery, Department of Surgery, University of Toronto, Toronto Western Hospital, 237 Barton St E, Hamilton, Ontario L8L2X2, Canada; Balgrist University Hospital, University of Zurich, Zurich, Switzerland
| | - Ahmed Aoude
- Hamilton Health Sciences, Juravinski Hospital and Cancer Center, Hamilton, Ontario, Canada; Division of Orthopedic Oncology, University of Toronto, Mt. Siani Hospital, Toronto, Ontario, Canada
| | - Patrick Thornley
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
| | - Michelle Ghert
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada; Balgrist University Hospital, University of Zurich, Zurich, Switzerland
| | - Raja Rampersaud
- Division of Orthopedic Surgery, Department of Surgery, University of Toronto, Toronto Western Hospital, 237 Barton St E, Hamilton, Ontario L8L2X2, Canada
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19
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Woolnough T, Axelrod D, Bozzo A, Koziarz A, Koziarz F, Oitment C, Gyemi L, Gormley J, Gouveia K, Johal H. What Is the Relative Effectiveness of the Various Surgical Treatment Options for Distal Radius Fractures? A Systematic Review and Network Meta-analysis of Randomized Controlled Trials. Clin Orthop Relat Res 2021; 479:348-362. [PMID: 33165042 PMCID: PMC7899542 DOI: 10.1097/corr.0000000000001524] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 09/14/2020] [Indexed: 01/31/2023]
Abstract
BACKGROUND Many acceptable treatment options exist for distal radius fractures (DRFs); however, a simultaneous comparison of all methods is difficult using conventional study designs. QUESTIONS/PURPOSES We performed a network meta-analysis of randomized controlled trials (RCTs) on DRF treatment to answer the following questions: Compared with nonoperative treatment, (1) which intervention is associated with the best 1-year functional outcome? (2) Which intervention is associated with the lowest risk of overall complications? (3) Which intervention is associated with the lowest risk of complications requiring operation? METHODS Ten databases were searched from inception to July 25, 2019. Search and analysis reporting adhered to Preferred Reporting Items for Systematic Reviews and Meta-analyses guidelines. Included studies were English-language RCTs that assessed at least one surgical treatment arm for adult patients with displaced DRFs, with less than 20% loss to follow-up. We excluded RCTs reporting on patients with open fractures, extensive bone loss, or ipsilateral upper extremity polytrauma. Seventy RCTs (n = 4789 patients) were included. Treatments compared were the volar locking plate, bridging external fixation, nonbridging external fixation, dynamic external fixation, percutaneous pinning, intramedullary fixation, dorsal plating, fragment-specific plating, and nonoperative treatment. Subgroup analyses were conducted for intraarticular fractures, extraarticular fractures, and patients with an average age greater than 60 years. Mean (range) patient age was 59 years (56 to 63) and was similar across all treatment groups except for dynamic external fixation (44 years) and fragment-specific plating (47 years). Distribution of intraarticular and extraarticular fractures was approximately equal among the treatment groups other than that for intramedullary fixation (73% extraarticular), fragment-specific plating (66% intraarticular) [13, 70], and dorsal plating (100% intraarticular). Outcomes were the DASH score at 1 year, total complications, and reoperation. The minimum clinically important different (MCID) for the DASH score was set at 10 points. The analysis was performed using Bayesian methodology with random-effects models. Rank orders were generated using surface under the cumulative ranking curve values. Evidence quality was assessed using Grades of Recommendation, Assessment, Development and Evaluation (GRADE) methodology. Most studies had a low risk of bias due to randomization and low rates of incomplete follow-up, unclear risk of bias due to selective reporting, and high risk of bias due to lack of patient and assessor blinding. Studies assessing bridging external fixation and/or nonoperative treatment arms had a higher overall risk of bias while studies with volar plating and/or percutaneous pinning treatment arms had a lower risk of bias. RESULTS Across all patients, there were no clinically important differences in terms of the DASH score at 1 year; although differences were found, all were less than the MCID of 10 points. Volar plating was ranked the highest for DASH score at 1 year (mean difference -7.34 [95% credible interval -11 to -3.7) while intramedullary fixation, with low-quality evidence, also showed improvement in DASH score (mean difference -7.75 [95% CI -14.6 to -0.56]). The subgroup analysis revealed that only locked volar plating was favored over nonoperative treatment for patients older than 60 years of age (mean difference -6.4 [95% CI -11 to -2.1]) and for those with intraarticular fractures (mean difference -8.4 [95% CI -15 to -2.0]). However, its clinical importance was uncertain as the MCID was not met. Among all patients, intramedullary fixation (odds ratio 0.09 [95% CI 0.02 to 0.84]) and locked volar plating (OR 0.14 [95% CI 0.05 to 0.39]) were associated with a lower complication risk compared with nonoperative treatment. For intraarticular fractures, volar plating was the only treatment associated with a lower risk of complications than nonoperative treatment (OR 0.021 [95% CI < 0.01 to 0.50]). For extraarticular fractures, only nonbridging external fixation was associated with a lower risk of complications than nonoperative treatment (OR 0.011 [95% CI < 0.01 to 0.65]), although the quality of evidence was low. Among all patients, the risk of complications requiring operation was lower with intramedullary fixation (OR 0.06 [95% CI < 0.01 to 0.85) than with nonoperative treatment, but no treatment was favored over nonoperative treatment when analyzed by subgroups. CONCLUSION We found no clinically important differences favoring any surgical treatment option with respect to 1-year functional outcome. However, relative to the other options, volar plating was associated with a lower complication risk, particularly in patients with intraarticular fractures, while nonbridging external fixation was associated with a lower complication risk in patients with extraarticular fractures. For patients older than 60 years of age, nonoperative treatment may still be the preferred option because there is no reliable evidence showing a consistent decrease in complications or complications requiring operation among the other treatment options. Particularly in this age group, the decision to expose patients to even a single surgery should be made with caution. LEVEL OF EVIDENCE Level I, therapeutic study.
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Affiliation(s)
- Taylor Woolnough
- T. Woolnough, L. Gyemi, J. Gormley, K. Gouveia, Michael G. DeGroote School of Medicine, McMaster University, Hamilton, ON, Canada
- D. Axelrod, A. Bozzo, C. Oitment, H. Johal, Division of Orthopaedic Surgery, McMaster University, Hamilton, ON, Canada
- A. Bozzo, H. Johal, Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada
- A. Koziarz, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- F. Koziarz, McMaster University, Hamilton, ON, Canada
| | - Daniel Axelrod
- T. Woolnough, L. Gyemi, J. Gormley, K. Gouveia, Michael G. DeGroote School of Medicine, McMaster University, Hamilton, ON, Canada
- D. Axelrod, A. Bozzo, C. Oitment, H. Johal, Division of Orthopaedic Surgery, McMaster University, Hamilton, ON, Canada
- A. Bozzo, H. Johal, Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada
- A. Koziarz, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- F. Koziarz, McMaster University, Hamilton, ON, Canada
| | - Anthony Bozzo
- T. Woolnough, L. Gyemi, J. Gormley, K. Gouveia, Michael G. DeGroote School of Medicine, McMaster University, Hamilton, ON, Canada
- D. Axelrod, A. Bozzo, C. Oitment, H. Johal, Division of Orthopaedic Surgery, McMaster University, Hamilton, ON, Canada
- A. Bozzo, H. Johal, Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada
- A. Koziarz, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- F. Koziarz, McMaster University, Hamilton, ON, Canada
| | - Alex Koziarz
- T. Woolnough, L. Gyemi, J. Gormley, K. Gouveia, Michael G. DeGroote School of Medicine, McMaster University, Hamilton, ON, Canada
- D. Axelrod, A. Bozzo, C. Oitment, H. Johal, Division of Orthopaedic Surgery, McMaster University, Hamilton, ON, Canada
- A. Bozzo, H. Johal, Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada
- A. Koziarz, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- F. Koziarz, McMaster University, Hamilton, ON, Canada
| | - Frank Koziarz
- T. Woolnough, L. Gyemi, J. Gormley, K. Gouveia, Michael G. DeGroote School of Medicine, McMaster University, Hamilton, ON, Canada
- D. Axelrod, A. Bozzo, C. Oitment, H. Johal, Division of Orthopaedic Surgery, McMaster University, Hamilton, ON, Canada
- A. Bozzo, H. Johal, Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada
- A. Koziarz, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- F. Koziarz, McMaster University, Hamilton, ON, Canada
| | - Colby Oitment
- T. Woolnough, L. Gyemi, J. Gormley, K. Gouveia, Michael G. DeGroote School of Medicine, McMaster University, Hamilton, ON, Canada
- D. Axelrod, A. Bozzo, C. Oitment, H. Johal, Division of Orthopaedic Surgery, McMaster University, Hamilton, ON, Canada
- A. Bozzo, H. Johal, Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada
- A. Koziarz, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- F. Koziarz, McMaster University, Hamilton, ON, Canada
| | - Lauren Gyemi
- T. Woolnough, L. Gyemi, J. Gormley, K. Gouveia, Michael G. DeGroote School of Medicine, McMaster University, Hamilton, ON, Canada
- D. Axelrod, A. Bozzo, C. Oitment, H. Johal, Division of Orthopaedic Surgery, McMaster University, Hamilton, ON, Canada
- A. Bozzo, H. Johal, Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada
- A. Koziarz, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- F. Koziarz, McMaster University, Hamilton, ON, Canada
| | - Jessica Gormley
- T. Woolnough, L. Gyemi, J. Gormley, K. Gouveia, Michael G. DeGroote School of Medicine, McMaster University, Hamilton, ON, Canada
- D. Axelrod, A. Bozzo, C. Oitment, H. Johal, Division of Orthopaedic Surgery, McMaster University, Hamilton, ON, Canada
- A. Bozzo, H. Johal, Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada
- A. Koziarz, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- F. Koziarz, McMaster University, Hamilton, ON, Canada
| | - Kyle Gouveia
- T. Woolnough, L. Gyemi, J. Gormley, K. Gouveia, Michael G. DeGroote School of Medicine, McMaster University, Hamilton, ON, Canada
- D. Axelrod, A. Bozzo, C. Oitment, H. Johal, Division of Orthopaedic Surgery, McMaster University, Hamilton, ON, Canada
- A. Bozzo, H. Johal, Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada
- A. Koziarz, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- F. Koziarz, McMaster University, Hamilton, ON, Canada
| | - Herman Johal
- T. Woolnough, L. Gyemi, J. Gormley, K. Gouveia, Michael G. DeGroote School of Medicine, McMaster University, Hamilton, ON, Canada
- D. Axelrod, A. Bozzo, C. Oitment, H. Johal, Division of Orthopaedic Surgery, McMaster University, Hamilton, ON, Canada
- A. Bozzo, H. Johal, Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada
- A. Koziarz, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- F. Koziarz, McMaster University, Hamilton, ON, Canada
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Akhter S, Qureshi AR, El-Khechen HA, Bozzo A, Khan M, Patel R, Bhandari M, Aleem I. The efficacy of teriparatide on lumbar spine bone mineral density, vertebral fracture incidence and pain in post-menopausal osteoporotic patients: A systematic review and meta-analysis. Bone Rep 2020; 13:100728. [PMID: 33145376 PMCID: PMC7591342 DOI: 10.1016/j.bonr.2020.100728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 10/10/2020] [Accepted: 10/14/2020] [Indexed: 11/20/2022] Open
Abstract
Objective Teriparatide has been increasingly utilized in the management of osteoporosis. The efficacy of low and high dose teriparatide on lumbar spine bone mineral density, vertebral fracture incidence and pain is unknown. We sought to determine the efficacy of teriparatide on these patient-important outcomes using a systematic review and meta-analysis. Methods A systematic search of electronic databases (MEDLINE, EMBASE, CENTRAL, CINAHL) was performed to identify randomized controlled trials (RCTs) that evaluate teriparatide to any comparator for the treatment of osteoporosis in postmenopausal women. The Grades of Recommendation Assessment, Development and Evaluation (GRADE) criteria were used by two independent reviewers to assess the strength and quality of evidence. Results A total of 20 studies (n = 6024) were included in this review, with 2855 patients receiving teriparatide and 3169 patients receiving placebo or control treatment. A teriparatide dose of 20 μg/day increased lumbar spine bone mineral density (BMD) (standardized mean difference (SMD) 0.34 standard deviation (SD) units higher (95% CI 0.19–0.48 SDs higher) in comparison to placebo. Relative to anti-resorptive agents, 20 μg/day of teriparatide had a range from 0.14 SD units to 0.96 SD units higher (95% CI, 0.08 SDs lower to 0.36 SDs higher, CI, 0.33–1.59 SDs higher, respectively). 20 μg/day teriparatide had a significant effect on pain severity to placebo or control (SMD 0.80, 95% CI, 1.16–0.43 SDs lower) and also decreased the incidence of vertebral fractures compared to placebo (relative risk 0.31, 95% CI 0.21 to 0.46). Arthralgia and extremity pain incidence were also calculated; there were 15 and 8 fewer events per 1000 patients with the use of 20 μg/day of teriparatide compared to placebo or control, respectively. Conclusion High quality evidence supports the utilization of teriparatide 20 μg/day dose to significantly improve lumbar spine BMD and decrease incidence of vertebral fractures and pain severity relative to all comparators. 40 μg/day dose of teriparatide demonstrated significantly better results with prolonged treatment. This data is valuable for clinicians involved in the care of this growing demographic of patients. Further investigation on the safety and efficacy of teriparatide in higher doses for the long-term treatment of osteoporosis in postmenopausal women should be conducted through high-quality clinical trials. Teriparatide (20 μg/day) significantly improves lumbar spine bone mineral density. Teriparatide (20 μg/day) reduces vertebral fracture incidence and pain. Increased teriparatide dose (40 μg/day) may have even greater clinical efficacy. Further investigation on safety profiles for longer-term treatment is warranted.
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Affiliation(s)
- Shakib Akhter
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Canada.,Department of Orthopaedic Surgery, McMaster University, Canada
| | - Abdul Rehman Qureshi
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Canada
| | - Hussein Ali El-Khechen
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Canada
| | - Anthony Bozzo
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Canada.,Department of Orthopaedic Surgery, McMaster University, Canada
| | - Moin Khan
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Canada.,Department of Orthopaedic Surgery, McMaster University, Canada
| | - Rakesh Patel
- Department of Orthopaedic Surgery, University of Michigan, United States of America
| | - Mohit Bhandari
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Canada.,Department of Orthopaedic Surgery, McMaster University, Canada.,OrthoEvidence, Burlington, Ontario, Canada
| | - Ilyas Aleem
- Department of Orthopaedic Surgery, University of Michigan, United States of America
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Gazendam A, Ekhtiari S, Bozzo A, Phillips M, Bhandari M. Intra-articular saline injection is as effective as corticosteroids, platelet-rich plasma and hyaluronic acid for hip osteoarthritis pain: a systematic review and network meta-analysis of randomised controlled trials. Br J Sports Med 2020; 55:256-261. [DOI: 10.1136/bjsports-2020-102179] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/23/2020] [Indexed: 01/13/2023]
Abstract
ObjectiveIntra-articular (IA) injections represent a commonly used modality in the treatment of hip osteoarthritis (OA). Commonly used injections include corticosteroids (CCS), hyaluronic acid (HA) and platelet-rich plasma (PRP). A network meta-analysis allows for comparison among more than two treatment arms and uses both direct and indirect comparisons between interventions. The objective of this network meta-analysis is to compare the efficacy of the various IA injectable treatments in treating hip OA at up to 6 months of follow-up.DesignThis is a systematic review and network meta-analysis. Bayesian random-effects model was performed to assess the direct and indirect comparisons of all treatment options.Data sourcesPubMed, Embase, Cochrane Central Register of Controlled Trials, Scopus and Web of Science, from inception to October 2019.Eligibility criteria for selected studiesRandomised controlled trials assessing the efficacy of CCS, HA, PRP and placebo in the form of IA saline injection for patients with hip OA.ResultsEleven randomised controlled trials comprising 1353 patients were included. For pain outcomes at both 2–4 and 6 months, no intervention significantly outperformed placebo IA injection. For functional outcomes at both 2–4 and 6 months, no intervention significantly outperformed placebo IA injection. Regarding change from baseline at 2–4 months and 6 months, pooled data demonstrated that all interventions (including placebo), with the exception of HA+PRP, led to a clinically important improvement in both pain, exceeding the minimal clinically important difference.ConclusionEvidence suggests that IA hip saline injections performed as well as all other injectable options in the management of hip pain and functional outcomes.
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Bozzo A. Privatization in Canada? Not Yet. Mcgill J Med 2020. [DOI: 10.26443/mjm.v14i1.208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Abstract
Olecranon fractures and osteotomies are treated with either tension-band wiring or plate-screw fixation; however, these methods of fixation have high rates of symptomatic hardware, resulting in revision surgery. We describe the novel use of intramedullary noncannulated long screws to gain rigid internal fixation and allow early range of motion. Our procedure differs from traditional intramedullary olecranon fixation as the longer screws, which can commonly be found on many pelvic fixation sets, allow for endosteal purchase at the isthmus of the ulna, which increases the pull-out strength of the screw. This procedure can be done quickly and requires minimal exposure, which minimises anaesthetic exposure, blood loss, and tourniquet time. The construct is not palpable subcutaneously and therefore is less likely to result in symptomatic hardware and revision surgery.
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Affiliation(s)
- Colby Oitment
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
| | - Alex Koziarz
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada; Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada
| | - Anthony Bozzo
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada; Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada
| | - Herman Johal
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada; Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada
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Missiuna P, Shen J, Nahle I, Shen J, Alanazi M, Rutges J, Rocos B, Miyanji F, Lohkamp L, Grootjen L, Hachem L, Aldebeyan S, Machida M, Padhye K, Rushton P, Jentzsch T, Jentzsch T, Lewis S, Passias P, Pierce K, Lewis S, Passias P, Nielsen C, Glennie A, Crawford E, Schneider N, Ayling O, Christie S, Greene R, Singh S, Beauchamp-Chalifour P, Balasuberamaniam P, Singh S, Mercure-Cyr R, Wilson J, Evaniew N, Martin A, Rienmueller A, Martin A, Karim M, Martin A, Cheung A, Badhiwala J, Diotalevi L, Jaja B, Fallah N, Badhiwala J, Wasim A, Manson N, Lasry O, Crawford E, Brown A, MacLean MA, Khan O, Badhiwala J, Odai KG, Bailly N, Khan O, Evaniew N, Yamamoto S, Singh M, Kashigar A, Persad A, Fernandes RJR, Malakoutian M, Ahuja C, Morris S, Stukas S, Chen T, Babadagli E, Xu M, Nater A, Oitment C, Karim M, Aziz M, Pahuta M, Versteeg A, Sundararajan K, Tanguay R, Stratton A, Cushnie D, Correale M, Sadiq I, Badhiwala J, Passias P, Badhiwala J, McGregor S, Passias P, Badhiwala J, Chen T, Singh S, Ayling O, Bond M, Rienmueller A, Chen T, Lasry O, Lyons F, Ahmed U, Inglis T, Waheed Z, Wilson J, Nater A, Pahuta M, Klein G, McKibben N, Kassam F, Clement A, Kanawati A, Shaikh N, Kanawati A, Alshammari A, Kanawati A, Yamamoto S, Hamilton K, Huschi Z, Peng YN, Huschi Z, Filgueira É, Goulet J, Kashigar A, Chen T, Hadgaonkar S, MacLean M, Chen T, Kerr HL, Meagher J, Wilson J, Stevens M, Rocos B, Pai A, Kingwell S, Thibault J, Touchette C, Moskven E, Greene R, DeVries Z, Sarraj M, Bosakhar B, Thornley P, Donnellan J, Kishta W, Darby P, Nahle I, Alzakri A, Roy-Beaudry M, Joncas J, Turgeon I, Parent S, Shen J, Alzakri A, Roy-Beaudry M, Joncas J, Turgeon I, Parent S, Samson N, Lamontagne-Proulx J, Soulet D, Tremblay Y, Praud JP, Parent S, Parent S, Gross D, Renkens J, Schlösser T, Stadhouder A, Kruyt M, Mostert A, Tee J, de Klerk L, De Kleuver M, Castelein R, Zeller R, Lewis S, Tan T, Lebel D, Rushton P, Petcharaporn M, Samdani A, Newton P, Marks M, Drake J, Dirks P, Rutka J, Kulkarni A, Ibrahim G, Taylor M, Dewan M, Zeller R, Donze S, Damen L, Rutges J, Hokken-Koelega A, Mathieu F, Lamberti-Pasculi M, Hanak B, Zeller R, Kulkarni A, Drake J, Ibrahim G, Rushton P, Ghag R, Miyanji F, Zeller R, Lewis S, Lebel D, Peiro-Garcia A, Benavides B, Parsons D, Ferri-de-Barros F, Aldebeyan S, Ghag R, Miyanji F, Kutschke L, Laux C, Kabelitz M, Schüpbach R, Böni T, Farshad M, Nielsen C, Lewis S, Lenke L, Shaffrey C, Cheung K, Berven S, Qiu Y, Matsuyama Y, Pellisé-Urquiza F, Polly D, Sembrano J, Dahl B, Kelly M, de Kleuver M, Spruit M, Alanay A, Alas H, Kim HJ, Lafage R, Soroceanu A, Hockley A, Ames C, Klineberg E, Burton D, Diebo B, Bess S, Line B, Shaffrey C, Smith J, Schwab F, Lafage V, Passias P, Lafage R, Soroceanu A, Hockley A, Line B, Klineberg E, Bess S, Protopsaltis T, Shaffrey C, Schwab F, Scheer J, Smith J, Lafage V, Ames C, Lenke L, Shaffrey C, Cheung K, Berven S, Qiu Y, Matsuyama Y, Pellisé-Urquiza F, Polly D, Sembrano J, Dahl B, Kelly M, de Kleuver M, Spruit M, Alanay A, Bortz C, Pierce K, Alas H, Brown A, Soroceanu A, Hockley A, Vira S, Ahmad W, Naessig S, Diebo B, Raman T, Protopsaltis T, Buckland A, Gerling M, Lafage R, Lafage V, Lewis S, Lenke L, Shaffrey C, Cheung K, Berven S, Qiu Y, Matsuyama Y, Pellisé-Urquiza F, Polly D, Sembrano J, Dahl B, Kelly M, de Kleuver M, Spruit M, Alanay A, Bailey C, Rampersaud R, Fisher C, Chen T, McIntosh G, Rampersaud R, Karim M, Urquhart J, Fisher C, Street J, Dvorak M, Paquette S, Charest-Morin R, Ailon T, Glennie A, Manson N, Rampersaud R, Thomas K, Rasoulinejad P, Bailey C, Ailon T, Fisher C, Greene R, Glennie A, Duquette D, LeBlanc D, Martell B, Schmidt M, Christie S, Wong DBT, Di Paola C, Ailon T, Charest-Morin R, Dea N, Dvorak M, Fisher C, Kwon B, Paquette S, Street J, Street J, Flexman A, Charest-Morin R, Wasim A, Schwartz C, Stark R, Shrikumar M, Finkelstein J, Gara A, Banaszek D, Wong T, Ailon T, Bryce E, Charest-Morin R, Dea N, Dvorak M, Fisher C, Kwon B, Paquette S, Street J, Persad A, Spiess M, Wu A, Woo A, Hnenny L, Fourney D, Joshi H, Khan O, Badhiwala J, Rampersaud R, Lewis S, Massicotte E, Fehlings M, Cadotte D, Bailey C, Christie S, Dea N, Fisher C, Paquet J, Soroceanu A, Thomas KC, Rampersaud YR, Wilson J, Manson N, Johnson M, Hall H, McIntosh G, Jacobs B, Kalsi-Ryan S, Akbar MA, Badhiwala J, Wilson J, Tetreault L, Nouri A, Rienmuller A, Massicotte E, Fehlings M, Kalsi-Ryan S, Riehm L, Martin A, Badhiwala J, Akbar M, Massicotte E, Fehlings M, Kalsi-Ryan S, Akbar MA, Badhiwala J, Wilson J, Tetreault L, Nouri A, Rienmuller A, Massicotte E, Fehlings M, Jacobs B, Johnson M, Bailey C, Christie S, Paquet J, Nataraj A, Cadotte D, Wilson J, Manson N, Hall H, Thomas K, Rampersaud R, McIntosh G, Fisher C, Dea N, Wilson J, Jentzsch T, Jiang F, Badhiwala J, Moghaddamjou A, Akbar MA, Nater A, Rienmuller A, Ganau M, Massicotte E, Fehlings M, Tu L, Manouchehri N, Kim KT, So K, Webster M, Fisk S, Tigchelaar S, Dalkilic S, Sayre E, Streijger F, Macnab A, Kwon B, Shadgan B, Wilson J, Fehlings M, Bailly N, Wagnac E, Mac-Thiong JM, Goulet J, Petit Y, Badhiwala J, Grossman R, Geisler F, Fehlings M, Wilson J, Rivers C, Kwon B, Waheed Z, Buenaventura J, Humphreys S, Noonan V, Evaniew N, Dvorak M, Wilson J, Fehlings M, Shrikumar M, Balasuberamaniam P, Rapkin B, Schwartz C, Stark R, Finkelstein J, Bigney E, Darling M, Richardson E, El-Mughayyar D, Abraham E, Street J, Radomski L, Rampersaud R, Pierce K, Bortz C, Alas H, Naessig S, Ahmad W, Vira S, Diebo B, Sciubba D, Hassanzadeh H, Hockley A, Soroceanu A, Protopsaltis T, Buckland A, Passias P, Greene R, Christie SD, Badhiwala J, Fehlings M, Witiw C, Wilson J, Fehlings M, Nessek H, Wai E, Phan P, Diotalevi L, Beauséjour MH, Wagnac E, Mac-Thiong JM, Petit Y, Badhiwala J, Fehlings M, Mazlouman S, Belley-Côté E, Jacobs B, Kwon B, Malakoutian M, Theret M, Street J, Brown S, Rossi F, Oxland T, Singh P, Chandra S, Laratta J, Carreon L, Bisson E, Ghogawala Z, Yew A, Mkorombindo T, Mummaneni P, Glassman S, Kindrachuk M, Hnenny L, Wu A, Norton J, Fourney D, Gee A, Kerr HL, Kanawati A, Zdero R, Gurr K, Bailey C, Rasoulinejad P, Yamamoto S, Sadaram S, Speidel J, Liu J, Street J, Brown S, Oxland T, Khazaei M, Walji I, Dadabhoy M, Gulati N, Aiyar N, Ostmeier S, Hasan A, Senthilnathan V, Punjani N, Yao Y, Yue S, Ozdemir G, Lou Z, Luong W, Post A, Tootsi A, Chan P, Fehlings M, Yung A, George S, Prevost V, Bauman A, Kozlowski P, Samadi F, Fournier C, Parker L, Dong K, Streijger F, Moore W, Laule C, Kwon B, Gill J, Cooper J, Dong K, Streijger F, Street J, Paquette S, Ailon T, Charest-Morin R, Fisher C, Dvorak M, Dhall S, Mac-Thiong JM, Parent S, Bailey C, Christie S, Wellington C, Kwon B, Crawford E, Zhang Y, Hardisty M, Finkelstein J, Kureshi N, Julien L, Abidi R, Christie S, Parashin S, Gascoyne T, Goytan M, Chuang J, Liu K, Quraishi N, Pasku D, Wilson J, Fehlings M, Bozzo A, Reinmuller A, Martin A, Hananel SY, Thornley P, Gazendam A, Aoude A, Nielsen C, Rampersaud R, Dea N, Versteeg A, Sahgal A, Verlaan JJ, Morin RC, Rhines L, Sciubba D, Schuster J, Weber M, Lazary A, Fehlings M, Clarke M, Arnold P, Boriani S, Laufer I, Gokaslan Z, Fisher C, Rosenzweig D, Weber M, Fisk F, Versteeg A, Fisher C, Sahgal A, Gokaslan Z, Rhines L, Boriani S, Bettegowda C, Dea N, Gal R, Charest-Morin R, Verlaan JJ, Verkooijen L, Fisher C, Perruccio A, Rampersaud R, Eckenswiller D, Yu A, Klassen K, Lewkonia P, Thomas K, Jacobs B, Miller N, Swamy G, Yang M, Soroceanu A, Phan P, Wai E, Kingwell S, Moravek D, Tierney S, Street J, Sundararajan K, Bosma R, Faclier G, Di Renna T, Rampersaud R, Frederick A, Kassam F, Nicholls F, Swamy G, Lewkonia P, Thomas K, Jacobs B, Miller N, Tanguay R, Soroceanu A, Platt A, Traynelis V, Witiw C, Horn S, Weiser-Horwitz S, Bortz C, Segreto F, Pierce K, Lafage R, Hockley A, Vira S, Lafage V, Witiw C, Wilson J, Nassiri F, da Costa L, Nathens A, Fehlings M, Jacobs B, Alas H, Pierce K, Brown A, Bortz C, Hockley A, Soroceanu A, Vira S, Naessig S, Ahmad W, Lafage R, Lafage V, Witiw C, Wilson J, da Costa L, Nathens A, Fehlings M, Crawford E, McIntosh G, Rampersaud R, Fisher C, Manson N, Thomas K, Hall H, Rampersaud R, Dea N, McIntosh G, Charest-Morin R, Investigators CSORN, Ailon T, Fisher C, Evaniew N, Aldebeyan S, Thomas K, Sundararajan K, Oitment C, Lewis S, Perruccio A, Rampersaud R, Christie S, Yee A, Fisher C, Jarzem P, Roy JF, Bouchard J, Evans D, Kwon B, Splawinski J, Warren D, Street J, Morris S, Costello J, Farrell M, Humphreys S, Kurban D, Rivers C, Jeffrey M, Juutilainen S, Casha S, Christie S, Clarke T, Drew B, Ethans K, Fehlings M, Fox R, Linassi G, Marion T, O’Connell C, Paquet J, Reid J, Scott L, Fourney D, Schouten R, Rivers C, Chen M, Nunnerley J, Croot T, Young L, Patel A, Dvorak M, Kwon B, Rivers C, Buenaventura J, Humphreys S, Noonan V, Fallah N, Evaniew N, Dvorak M, Cronin S, Badhiwala J, Ginsberg H, Fehlings M, Kwon B, Jaglal S, Wilson J, Fehlings M, Fisk F, Versteeg A, Fisher C, Sahgal A, Gokaslan Z, Rhines L, Boriani S, Bettegowda C, Dea N, Martel A, Sahgal A, Finkelstein J, Whyne C, Hardisty M, Baksh N, Nguyen T, Brown S, Jaboin J, Lin C, Yach J, Hardisty M, Whyne C, Fernandez R, Gee A, Urquhart J, Bailey C, Rasoulinejad P, Zhang H, Shewchuk J, Street J, Wilson D, Oxland T, Fernandez R, Gee A, Urquhart J, Bailey C, Rasoulinejad P, Algarni N, Aljarboa N, Jarzem P, Fernandez R, Gee A, Urquhart J, Bailey C, Rasoulinejad P, Whyte T, Van Toen C, Melnyk A, Shewchuk J, Street J, Cripton P, Oxland T, Avila M, Hurlbert RJ, Neuburger L, Ahmed SU, Cheng Y, Fourney D, Hsu HC, Kao CH, Neuburger L, Ahmed SU, Cheng Y, Fourney D, Meves R, de Oliveira AI, da Silva HC, Richard-Denis A, Petit Y, Diotalevi L, Mac-Thiong JM, Laratta J, Bisson E, Carreon L, Yew A, Mkorombindo T, Glassman S, Christie S, Bouchard J, Fisher C, Roy JF, Yee A, Jarzem P, Khurjekar K, Kothari A, Zawar A, Sanchetui P, Shyam A, Touchette C, Han JH, Christie S, Pickett G, Yee A, Bouchard J, Christie S, Fisher C, Jarzem P, Roy JF, Hashem L, Urquhart J, Rasoulinejad P, Gurr K, Siddiqi F, Bailey C, Attabib N, Bigney E, Richardson E, El-Mughayyar D, Darling M, Manson N, Abraham E, Badhiwala J, Jiang F, Wilson J, Fehlings M, Dunning C, Oxner W, Stewart S, Glennie A, Hutchinson J, Oxland T, Zhang H, Shewchuk J, Wilson D, Street J, Wilk S, Wai E, Phan P, Stratton A, Mohammed S, Tsai E, Alkerayf F, Michalowski W, Phan P, Wai E, Hoda M, MacLean M, Brunette-Clément T, Abduljabba F, Weber M, Fourney D, Charest-Morin R, Flexman A, Street J, Frey M, Mackey S, De Carvalho D, Barrowman N, Smit K, Tice A, Mervitz D, Jarvis J, Kingwell S. Canadian Spine SocietyPresentation CPSS1: Spinal insufficiency fracture in the geriatric pediatric spinePresentation CPSS2: The clinical significance of tether breakages in anterior vertebral body growth modulation: a 2-year postoperative analysisPresentation CPSS3: Anterior vertebral body growth modulation for idiopathic scoliosis: early, mid-term and late complicationsPresentation CPSS4: Ovine model of congenital chest wall and spine deformity with alterations of respiratory mechanics: follow-up from birth to 3 monthsPresentation CPSS5: Test–retest reliability and minimum detectable change of the English translation of the Italian Spine Youth Quality of Life questionnaire in adolescents with idiopathic scoliosisPresentation B1. Abstract 31: Incidence of delayed spinal cord injury in pediatric spine deformity surgery seems to be higher than previously assumedPresentation B2. Abstract 155: What is the optimal surgical method for achieving successful symptom relief in pediatric high-grade spondylolisthesis?Presentation B3. Abstract 47: Vertebral body tethering: Truly motion preserving or rather limiting?Presentation B4. Abstract 180: Fusion rates in pediatric patients after posterior cervical spine instrumentationPresentation B5. Abstract 102: Effects of 8 years of growth hormone treatment on the onset and progression of scoliosis in children with Prader–Willi syndromePresentation B6. Abstract 144: Klippel–Feil syndrome: clinical phenotypes associated with surgical treatmentPresentation B7. Abstract 123: Anterior release for idiopathic scoliosis: Is it necessary for curve correction?Presentation B8. Abstract 62: Severe scoliosis: Do we know a better way? A retrospective comparative studyPresentation B9. Abstract 21: Intraoperative skull femoral traction in adolescent idiopathic scoliosis: the correlation of traction with side-bending radiographsPresentation B10. Abstract 147: What is the effect of intraoperative halo-femoral traction on correction of adolescent idiopathic scoliosis?Presentation B11. Abstract 174: Extreme long-term outcome of surgically versus non-surgically treated patients with adolescent idiopathic scoliosisPresentation B12. Abstract 172: The influence of multilevel spinal deformity surgery on the clinical outcome in the elderly: a prospective, observational, multicentre studyPresentation B13. Abstract 49: Demographics of a prospective evaluation of elderly deformity surgery: a prospective international observational multicentre studyPresentation B14. Abstract 119: Timing of conversion to cervical malalignment and proximal junctional kyphosis following surgical correction of adult spinal deformityPresentation B15. Abstract 44: Prioritization of realignment associated with superior clinical outcomes for surgical cervical deformity patientsPresentation B16. Abstract 50: Outcome of multilevel spinal deformity surgery in patients over 60 years of age: a multicentre international prospective studyPresentation B17. Abstract 122: A simpler, modified frailty index weighted by complication occurrence correlates to pain and disability for adult spinal deformity patientsPresentation B18. Abstract 75: Change in Oswestry Disability Index at 24 months following multilevel spinal deformity surgery in patients over 60 years of age: a multicentre international prospective studyPresentation C19. Abstract 19: A prospective cohort study evaluating trends in the surgical treatment of degenerative spondylolisthesis in Canada and the utility of a novel surgical decision aidPresentation C20. Abstract 154: Decompression compared with decompression and fusion for degenerative lumbar spondylolisthesis: a Canadian Spine Outcomes and Research Network (CSORN) studyPresentation C21. Abstract ID 77: Lumbar degenerative spondylolisthesis: factors impacting decision to fusePresentation C22. Abstract 27: Patient-reported outcomes following surgery for lumbar disc herniation: comparison of a universal and multitier health care systemPresentation C23. Abstract 151: Do patients with recurrent lumbar disc herniations fair worse with discectomy than primary operations? A retrospective analysis from the Canadian Spine Outcomes and Research NetworkPresentation C24. Abstract 136: A province-wide assessment of the appropriateness of lumbar spine MRIPresentation D25. Abstract 32: Surgical site infection reduction — a 10-year quality improvement journeyPresentation D26. Abstract 34: The impact of frailty on patient-reported outcome measures following elective thoraco-lumbar spine surgeryPresentation D27. Abstract 8: Moving toward better health: exercise practice is associated with improved outcomes after spine surgeryPresentation D28. Abstract 33: Preoperative decolonization does not adversely affect the microbiologic spectrum of spine surgical site infectionPresentation D29. Abstract 61: Feedback: reducing after-hours spine cases using an encrypted messaging systemPresentation D30. Abstract 177: Complex spine surgery is safe and effective in the extremely elderly age group: results from an ambispective study of 722 patients over 75 years old from a single institutionPresentation E31. Abstract 38: Clinical predictors of achieving minimal clinically important difference after surgery for cervical spondylotic myelopathy: an external validation study from the Canadian Spine Outcomes and Research NetworkPresentation E32. Abstract 66: The natural history of degenerative cervical myelopathy: an ambispective longitudinal cohort studyPresentation E33. Abstract 159: Quantitative assessment of gait characteristics in degenerative cervical myelopathy (DCM): a prospective studyPresentation E34. Abstract 130: Prognostic factors in degenerative cervical myelopathy (DCM) for patients managed operatively and nonoperativelyPresentation E35. Abstract 175: Efficacy of surgical decompression in patients with cervical spondylotic myelopathy: results of a Canadian prospective multicentre studyPresentation E36. Abstract 67: Interobserver reliability of the modified Japanese Orthopedic Association (mJOA) score in degenerative cervical myelopathyPresentation F37. Abstract 128: Continuous optical monitoring of spinal cord hemodynamics during the first 7 days after injury in a porcine model of acute spinal cord injuryPresentation F38. Abstract 106: Development of a prediction model for central cord syndrome: an evaluation of motor recovery and the effectiveness of early surgery in a prospective, multicentre cohortPresentation F39. Abstract 135: Spinal cord dynamics under different clinical configurations of thoracolumbar burst fractures through numerical simulationsPresentation F40. Abstract 60: Predicting the heterogeneity of outcome following sensorimotor complete cervical spinal cord injury: trajectory-based analysis of 655 prospectively enrolled patientsPresentation F41. Abstract 167: Mortality in the year following discharge to the community from inpatient care for acute traumatic spinal cord injury: When and why?Presentation F42. Abstract 104: A novel method to classify patients with cervical incomplete spinal cord injury based on potential for recovery: a group-based trajectory analysis using prospective, multicentre data from over 800 patientsPresentation G43. Abstract 7: Responsiveness of standard spine outcome tools: Do they measure up?Presentation G44. Abstract 142: Patient outcomes: important psychological measuresPresentation G45. Abstract 84: Accuracy of surveillance for surgical site infections after spine surgery: a Bayesian latent class analysis using 4 independent data sourcesPresentation G46. Abstract 169: Econometric modelling: development of a surgical cost calculator for degenerative conditions of the lumbar spinePresentation G47. Abstract 124: The economic impact of nonreimbursable events in open, minimally invasive and robot-assisted lumbar fusion surgeryPresentation G48. Abstract 164: Are there sex differences in preoperative health status and health care delivery for patients undergoing scheduled lumbar surgery? An analysis from the Canadian Spine Outcomes and Research NetworkPresentation H49. Abstract 41: Patient phenotypes associated with functional outcomes after spinal cord injury: a principal component analysis in 1119 patientsPresentation H50. Abstract 103: Early versus late surgical decompression for acute traumatic spinal cord injury: a pooled analysis of prospective, multicentre data in 1548 patientsPresentation H51. Abstract 79: Clinical outcome correlation of diffusion tensor imaging and magnetic resonance imaging values: a systematic reviewPresentation H52. Abstract 137: A numerical study on the pathogenesis of central cord syndromePresentation H53. Abstract 42: Feasibility and utility of machine learning in prediction of bladder outcomes after spinal cord injury: analysis of 1250 patients from the European Multicenter Study about Spinal Cord Injury (EMSCI) registryPresentation H54. Abstract 18: Interventions to optimize spinal cord perfusion in patients with acute traumatic spinal cord injuries: a systematic reviewPresentation i55. Abstract 55: The effect of posterior lumbar spinal surgery on passive stiffness of rat paraspinal muscles 13 weeks post-surgeryPresentation i56. Abstract 43: A computed tomographic based morphometric analysis of the axis in adult populationPresentation i57. Abstract 92: Is there value to flexion–extension x-rays for degenerative spondylolisthesis? A multicentre retrospective studyPresentation i58. Abstract 98: The novel “7/20 EMG protocol” in combination with O-arm image-guided navigation for accurate lumbar pedicle placement while minimizing diagnostic radiation exposurePresentation i59. Abstract 148: Comparative biomechanical study of 2 types of transdiscal fixation implants for high-grade L5/S1 spine spondylolisthesis in a porcine modelPresentation i60. Abstract 85: The effects of fibre bundle size and vertebral level on passive stiffness of the lumbar paraspinal muscles in a rat modelPresentation J61. Abstract 157: A self-assembling peptide biomaterial to enhance human neural stem cell-based regeneration of the injured spinal cordPresentation J62. Abstract 162: Measuring demyelination, axonal loss and inflammation after human spinal cord injury with quantitative magnetic resonance imaging and histopathologyPresentation J63. Abstract 179: Characterization of ubiquitin C-terminal hydrolase L1 (UCH-L1) as a fluid biomarker of human traumatic spinal cord injuryPresentation J64. Abstract 13: Utility and role of virtual reality based simulation models in spinal decompression trainingPresentation J65. Abstract 160: Investigating the determinants for predicting surgical patient outcomes through the application of machine learning methodsPresentation J66. Abstract 143: Comparison of screw design and technique on cervical lateral mass screw fixationPresentation K67. Abstract 57: Development of clinical prognostic models for postoperative survival and quality of life in patients with surgically treated metastatic epidural spinal cord compressionPresentation K68. Abstract 170: Sarcomas of the spine: a 20-year survey of disease and treatment strategy in Ontario, CanadaPresentation K69. Abstract 15: Metastatic spine disease: Should patients with short life expectancy be denied surgical care? An international retrospective cohort studyPresentation K70. Abstract 29: Nanoparticle-functionalized polymethyl methacrylate bone cement for sustained chemotherapeutic drug deliveryPresentation K71. Abstract 90: Development of the Spine Oncology Study Group Outcomes Questionnaire – 8 Domain (SOSGOQ-8D)Presentation K72. Abstract 6: Treatment expectations of patients with spinal metastases: What do we tell our patients?Presentation L73. Abstract 48: Factors related to risk of opioid abuse in primary care patients with low back painPresentation L74. Abstract 65: QI/QA of a transitional outpatient pain program for spinePresentation L75. Abstract 168: The effect of preoperative opioid use on hospital length of stay in patients undergoing elective spine surgeryPresentation L76. Abstract 163: Disability or pain: Which best predicts patient satisfaction with surgical outcome? A Canadian Spine Outcomes and Research Network (CSORN) studyPresentation L77. Abstract 58: Rapid access to interventional pain management for lumbar nerve root pain through collaborative interprofessional provider networksPresentation L78. Abstract 63: Chronic preoperative opioid use associated with higher perioperative resource utilization and complications in adult spinal deformity patientsPresentation M79. Abstract 108: Cervical disc arthroplasty versus anterior cervical discectomy and fusion: a longitudinal analysis of reoperationsPresentation M80. Abstract 46: Preliminary results of randomized controlled trial investigating the role of psychological distress on cervical spine surgery outcomes: a baseline analysisPresentation M81. Abstract 110: Operative versus nonoperative treatment of geriatric odontoid fractures: a study of North American trauma centresPresentation M82. Abstract 74: Clinical outcome of posterior cervical foraminotomy versus anterior cervical discectomy and fusionPresentation M83. Abstract 45: “Reverse Roussouly”: ratios of cervical to thoracic shape curvature in an adult cervical deformity populationPresentation M84. Abstract 109: Treatment of acute traumatic central cord syndrome: a study of North American trauma centresPresentation N85. Abstract 118: Comparing minimally invasive versus traditional open lumbar decompression and fusion surgery: a Canadian Spine Outcomes and Research Network (CSORN) studyPresentation N86. Abstract 54: Time to return to work after lumbar spine surgeryPresentation N87. Abstract 28: Patient-reported outcomes following surgery for lumbar spinal stenosis: comparison of a universal and multitier health care systemPresentation N88. Abstract 93: Outcomes of surgery in older adults with lumbar spinal stenosisPresentation N89. Abstract 162: Functional objective assessment using the TUG test is a useful tool to evaluate outcome in lumbar spinal stenosisPresentation N90. Abstract 36: A Canadian Spine Outcomes and Research Network (CSORN) matched-cohort study comparing lumbar fusion and disk arthroplastyPresentation o91. Abstract 171: Development of clinical practice guidelines for the management of traumatic spinal column and cord injuries in British Columbia: an approach to standardizing care of spine trauma patientsPresentation o92. Abstract 22: Notes from a small island: stemming the tide of a spinal deluge. The use of encrypted software applications to ensure accountability, quality control and surgical consensus in a national acute adult spinal surgery centrePresentation o93. Abstract 129: Traumatic spinal cord injuries among Aboriginal and non-Aboriginal populations in Canada: an ambispective outcomes studyPresentation o94. Abstract 132: Traumatic spinal cord injury in New Zealand and Canada: a comparative analysisPresentation o95. Abstract 150: Exploring the reasons for readmission following traumatic spinal cord injuryPresentation o96. Abstract 59: Exploring the epidemiology and impact of spinal cord injury in the elderly: a 15-year Canadian population-based cohort studyPresentation P1. Abstract 139: Incidence and management of spinal metastasis in Ontario: a population-based studyPresentation P2. Abstract 91: A general population utility valuation study for the Spine Oncology Study Group Outcomes Questionnaire – 8DPresentation P3. Abstract 158: Metastatic vertebrae segmentation by augmented 3D convolutional neural networkPresentation P4. Abstract 73: Risk factors for failure of radiation therapy for spinal metastasesPresentation P5. Abstract 68: Significance of extracanalicular cement extravasation in thoracolumbar kyphoplastyPresentation P6. Abstract 120: Modelling fracture in osteoblastic vertebraePresentation P7. Abstract 97: The development of novel 2-in-1 patient-specific, 3D-printed laminar osteotomy guides with integrated pedicle screw guidesPresentation P8. Abstract 56: Effect of pelvic retroversion on pelvic geometry and muscle morphometry from upright magnetic resonance imagingPresentation P9. Abstract 161: Anatomic relationship between the accessory process of the lumbar spine and the pedicle screw entry pointPresentation P10. Abstract 20: Novel chair to measure lumbar spine extensors strength in adultsPresentation P11. Abstract 95: Error measurement between human spine, 3D scans, CT-based models, and 3D-printed modelsPresentation P12. Abstract 52: The diagnostic precision of computed tomography for traumatic cervical spine injury: an in vitro investigationPresentation P13. Abstract 94: Epidural abscess causing spinal cord infarctionPresentation P14. Abstract 83: The nerve root sedimentation sign on magnetic resonance imaging is not only correlated with neurogenic claudication: association with all types of leg-dominant mechanical painPresentation P15. Abstract 3: Accuracy of robot-assisted compared with freehand pedicle screw placement in spine surgery: a meta-analysis of randomized controlled trialsPresentation P16. Abstract 82: A positive nerve root sedimentation sign on magnetic resonance imaging is associated with improved surgical outcomes in patients with back dominant painPresentation P17. Abstract 16: Thoracolumbar burst fracture: McCormack load-sharing classification —systematic review and single-arm meta-analysisPresentation P18. Abstract 86: Morphological features of thoracolumbar burst fractures associated with neurologic recovery after thoracolumbar traumatic spinal cord injuryPresentation P19. Abstract 89: Radiographic parameters of listhesis and instability are not associated with health status or clinical outcomes in grade 1 degenerative spondylolisthesisPresentation P20. Abstract 37: Predictive socioeconomic factors following lumbar disk arthroplasty: a Canadian Spine Outcomes and Research Network (CSORN) studyPresentation P21. Abstract 25: Effect of in situ fusion in lumbar spondylolisthesis on clinical outcomes and spino-pelvic sagittal balancingPresentation P22. Abstract 10: Sex differences in the surgical management of lumbar degenerative disease: a systematic reviewPresentation P23. Abstract 35: Two-year results of lumbar disk arthroplasty: a Canadian Spine Outcomes and Research Network (CSORN) studyPresentation P24. Abstract 78: Does disc morphology affect the success of nonoperative treatment of chronic sciatica from a lumbar disc herniation?Presentation P25. Abstract 141: Opioid prescribing patterns: preliminary investigationPresentation P26. Abstract 133: Frailty is a better predictor of complications than age alone after surgical treatment of degenerative cervical myelopathy: an ambispective study of 5107 elderly patients from the National Surgical Quality Improvement Program databasePresentation P27. Abstract 26: Pathway analysis in spine surgery: a model for evaluating length of stayPresentation P29. Abstract 156: Patients with adolescent idiopathic scoliosis (AIS) have different cervical lordosis than the normal populationPresentation P31. Abstract 64: Investigation of thoracic spinal muscle morphology with upright magnetic resonance imagingPresentation P32. Abstract 80: Postoperative complication prediction between spinal surgeons and a machine learning model: a comparative studyPresentation P33. Abstract 81: Is using a simplified procedural classification as accurate as using current procedural terminology codes to predict future complications in spinal surgery?Presentation P34. Abstract 88: Preoperative patient performance status and frailty phenotype as predictive factors of outcome in surgically treated patients with metastatic spinal disease: a systematic literature reviewPresentation P35. Abstract 101: The measurements of frailty and their application to spine surgeryPresentation P36. Abstract 131: The effect of prolonged sitting on muscle reflexes of the low backPresentation P37. Abstract 87: Implementing a rapid discharge pathway for adolescent idiopathic scoliosis in Canada. Can J Surg 2020. [DOI: 10.1503/cjs.014720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Amer KM, Congiusta DV, Thomson JE, Elsamna S, Chaudhry I, Bozzo A, Amer R, Siracuse B, Ghert M, Beebe KS. Epidemiology and survival of liposarcoma and its subtypes: A dual database analysis. J Clin Orthop Trauma 2020; 11:S479-S484. [PMID: 32774015 PMCID: PMC7394804 DOI: 10.1016/j.jcot.2020.04.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 03/27/2020] [Accepted: 04/11/2020] [Indexed: 10/24/2022] Open
Abstract
PURPOSE Liposarcoma (LPS) is a one of the most commonly diagnosed soft tissue sarcomas. Little is known about the epidemiology and prognosis of each subtype. We present an analysis of epidemiology and survival of the subtypes of LPS using a national database. METHODS We queried the Survival Epidemiology, and End Results (SEER) and the Canadian Institute for Clinical Evaluative Sciences (ICES) databases for data on 7 types of LPS. Pearson's chi square was used to determine associations between variables and subtypes. Kaplan-Meier and Cox Regression analyses were performed for two tests: one using SEER data and the other using variables common to both SEER and ICES. RESULTS The well-differentiated subtype was the most common subtype identified. Metastatic disease was associated with decreased survival across all subtypes and age >35 was associated with decreased survival in well-differentiated and myxoid subtypes. Tumor grade was associated with decreased survival in the well-differentiated, myxoid, mixed, and round cell subtypes. In the secondary analysis, age >35 was associated with decreased survival in the myxoid subtype. CONCLUSIONS The prognosis of liposarcoma differs greatly by subtype. Clinicians should account for patient factors at the time of diagnosis to best navigate treatment of their patients.
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Affiliation(s)
- Kamil M. Amer
- Rutgers New Jersey Medical School Department of Orthopaedics, 140 Bergen Street, ACC D1610, Newark, NJ, 07103, USA
| | - Dominick V. Congiusta
- Rutgers New Jersey Medical School Department of Orthopaedics, 140 Bergen Street, ACC D1610, Newark, NJ, 07103, USA,Corresponding author.
| | - Jennifer E. Thomson
- Rutgers New Jersey Medical School Department of Orthopaedics, 140 Bergen Street, ACC D1610, Newark, NJ, 07103, USA
| | - Samer Elsamna
- Rutgers New Jersey Medical School Department of Orthopaedics, 140 Bergen Street, ACC D1610, Newark, NJ, 07103, USA
| | - Iftikhar Chaudhry
- Rutgers New Jersey Medical School Department of Orthopaedics, 140 Bergen Street, ACC D1610, Newark, NJ, 07103, USA
| | - Anthony Bozzo
- McMaster University Division of Orthopaedic Surgery, Department of Surgery, 1280 Main Street West, Hamilton, Ontario, Canada
| | - Rami Amer
- Rutgers New Jersey Medical School Department of Orthopaedics, 140 Bergen Street, ACC D1610, Newark, NJ, 07103, USA
| | - Brianna Siracuse
- Rutgers New Jersey Medical School Department of Orthopaedics, 140 Bergen Street, ACC D1610, Newark, NJ, 07103, USA
| | - Michelle Ghert
- McMaster University Division of Orthopaedic Surgery, Department of Surgery, 1280 Main Street West, Hamilton, Ontario, Canada
| | - Kathleen S. Beebe
- Rutgers New Jersey Medical School Department of Orthopaedics, 140 Bergen Street, ACC D1610, Newark, NJ, 07103, USA
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Deng J, Abbas U, Chang O, Dhivagaran T, Sanger S, Bozzo A. Antidiabetic and antiosteoporotic pharmacotherapies for prevention and treatment of type 2 diabetes-induced bone disease: protocol for two network meta-analyses. BMJ Open 2020; 10:e034741. [PMID: 32014879 PMCID: PMC7045154 DOI: 10.1136/bmjopen-2019-034741] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 01/02/2020] [Accepted: 01/16/2020] [Indexed: 12/28/2022] Open
Abstract
INTRODUCTION Patients with type 2 diabetes mellitus (T2DM) are at risk for a variety of severe debilitating effects. One of the most serious complications experienced by patients with T2DM are skeletal diseases caused by changes in the bone microenvironment. As a result, patients with T2DM are at risk for higher prevalence of fragility fractures. There are a variety of treatments available for counteracting this effect. Some antidiabetic medications, such as metformin, have been shown to have a positive effect on bone health without the addition of additional drugs into patients' treatment plans. Chinese randomised controlled trial (RCT) studies have also proposed antiosteoporotic pharmacotherapies as a viable alternative treatment strategy. Previous network meta-analyses (NMAs) and meta-analyses regarding this topic did not include all available RCT trials, or only performed pairwise comparisons. We present a protocol for a two-part NMA that incorporates all available RCT data to provide the most comprehensive ranking of antidiabetics (part I) and antiosteoporotic (part II) pharmacotherapies in terms of their ability to decrease fracture incidences, increase bone mineral density (BMD) and improve indications of bone turnover markers (BTMs) in adult patients with T2DM. METHODS AND ANALYSIS We will search Medical Literature Analysis and Retrieval System Online, Excerpta Medica Database, PubMed, Web of Science, Cumulative Index to Nursing and Allied Health Literature, Cochrane Central Register of Controlled Trials and Chinese literature sources (China National Knowledge Infrastructure, Chongqing VIP Information, Wanfang Data, Wanfang Med Online) for RCTs, which fit our criteria. We will include adult patients with T2DM who have taken antidiabetics (part I) or antiosteoporotic (part II) therapies with relevant outcome measures in our study. We will perform title/abstract and full-text screening as well as data extraction in duplicate. Risk of bias will be evaluated in duplicate for each study, and the quality of evidence will be examined using Confidence in Network Meta-Analysis in accordance to the Grading of Recommendations Assessment, Development and Evaluation framework. We will use R and gemtc to perform the NMA. We will report changes in BMD and BTMs in either weighted or standardised mean difference, and we will report fracture incidences as ORs. We will use the Surface Under the Cumulative Ranking Curve scores to provide numerical estimates of the rankings of interventions. ETHICS AND DISSEMINATION The study will not require ethics approval. The findings of the two-part NMA will be disseminated in peer-reviewed journals and presented at conferences. We aim to produce the most comprehensive quantitative analysis regarding the management of T2DM bone disease. Our analysis should be able to provide physicians and patients with up-to-date recommendations for antidiabetic medications and antiosteoporotic pharmacotherapies for maintaining bone health in patients with T2DM. PROSPERO REGISTRATION NUMBER CRD42019139320.
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Affiliation(s)
- Jiawen Deng
- Faculty of Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Umaima Abbas
- Faculty of Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Oswin Chang
- Faculty of Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | | | - Stephanie Sanger
- Health Sciences Library, McMaster University, Hamilton, Ontario, Canada
| | - Anthony Bozzo
- Division of Orthopedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
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Gupta S, Panchal P, Pandey A, Basha A, Pallo L, Bozzo A, Belley-Côté E, Whitlock R. ANTI-PLATELET THERAPY AFTER CORONARY ARTERY BYPASS GRAFTING: A SYSTEMATIC REVIEW AND NETWORK META-ANALYSIS. Can J Cardiol 2019. [DOI: 10.1016/j.cjca.2019.07.616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Amer KM, Thomson JE, Congiusta D, Dobitsch A, Chaudhry A, Li M, Chaudhry A, Bozzo A, Siracuse B, Aytekin MN, Ghert M, Beebe KS. Epidemiology, Incidence, and Survival of Rhabdomyosarcoma Subtypes: SEER and ICES Database Analysis. J Orthop Res 2019; 37:2226-2230. [PMID: 31161653 DOI: 10.1002/jor.24387] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 04/23/2019] [Indexed: 02/04/2023]
Abstract
Rhabdomyosarcoma is the most common soft-tissue sarcoma in children and adolescents and accounts for 3% of all pediatric tumors. Subtypes include alveolar, spindle cell, embryonal, mixed-type, pleomorphic, and rhabdomyosarcoma with ganglionic differentiation. The National Cancer Institute's Surveillance, Epidemiology, and End Results (SEER) database was queried for patients diagnosed with any type of rhabdomyosarcoma between 1973 and 2014. Patient demographics, tumor characteristics, and incidence were studied with χ2 analysis. Survival was modeled with Kaplan-Meier survival curves and Cox proportional hazards models were used to assess the effect of age and gender on survival. Pleomorphic subtype had higher grade and larger sized tumors compared to other subtypes (p < 0.05). Pleomorphic and alveolar rhabdomyosarcoma had the worst overall survival with a 26.6% and 28.9% 5-year survival, respectively. Embryonal rhabdomyosarcoma had the highest 5-year survival rate (73.9%). Tumor size was negatively correlated with survival months, indicating patients with larger tumors had shorter survival times (p < 0.05). Presence of higher-grade tumors and metastatic disease at presentation were negatively correlated with survival months (p < 0.05). No significant differences in the survival were found between gender or race between all of the subtypes (p > 0.05). This study highlights key differences in the demographic and survival rates of the different types of rhabdomyosarcoma that can be used for more tailored patient counseling. We also demonstrate that large, population-level databases provide sufficient data that can be used in the analysis of rare tumors. © 2019 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 37:2226-2230, 2019.
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Affiliation(s)
- Kamil M Amer
- Department of Orthopaedics, Rutgers New Jersey Medical School, 140 Bergen Street, Suite D, Newark, New Jersey, 07103
| | | | - Dominick Congiusta
- Department of Orthopaedics, Rutgers New Jersey Medical School, 140 Bergen Street, Suite D, Newark, New Jersey, 07103
| | - Andrew Dobitsch
- Department of Orthopaedics, Rutgers New Jersey Medical School, 140 Bergen Street, Suite D, Newark, New Jersey, 07103
| | - Ahmed Chaudhry
- Department of Orthopaedics, Rutgers New Jersey Medical School, 140 Bergen Street, Suite D, Newark, New Jersey, 07103
| | - Matthew Li
- Department of Education, Lime Tree Bay Ave, West Bay, Cayman Islands
| | - Aisha Chaudhry
- Department of Orthopaedics, Rutgers New Jersey Medical School, 140 Bergen Street, Suite D, Newark, New Jersey, 07103
| | - Anthony Bozzo
- Department of Surgery, McMaster University Division of Orthopaedic Surgery, Hamilton, Ontario, Canada
| | - Brianna Siracuse
- Department of Orthopaedics, Rutgers New Jersey Medical School, 140 Bergen Street, Suite D, Newark, New Jersey, 07103
| | - Mahmut Nedim Aytekin
- Department of Orthopedics and Traumatology, Yildirim Beyazit University, Ankara, Turkey
| | - Michelle Ghert
- Department of Surgery, McMaster University Division of Orthopaedic Surgery, Hamilton Health Sciences, Juravinski Hospital and Cancer Center, Hamilton, Ontario, Canada
| | - Kathleen S Beebe
- Department of Orthopaedics, Rutgers New Jersey Medical School, 140 Bergen Street, Suite D, Newark, New Jersey, 07103
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Gupta S, Belley-Côté EP, Rochwerg B, Bozzo A, Panchal P, Pandey A, Mbuagbaw L, Mehta S, Schwalm JD, Whitlock RP. Antiplatelet therapy and coronary artery bypass grafting: Protocol for a systematic review and network meta-analysis. Medicine (Baltimore) 2019; 98:e16880. [PMID: 31441862 PMCID: PMC6716708 DOI: 10.1097/md.0000000000016880] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
INTRODUCTION Saphenous vein graft (SVG) is the most common conduit used for coronary artery bypass grafting (CABG) surgery. Unfortunately, SVG are associated with poor long-term patency rates; a significant predictor of re-operation rates and survival. As such, medical therapy to prevent SVG narrowing or occlusion is of paramount importance. Aspirin (ASA) monotherapy is the standard of care after CABG, to improve long-term major adverse cardiovascular events (MACE) and graft patency. Benefits of dual antiplatelet therapy (DAPT) have not been well established in all CABG patients. We present a protocol for a network meta-analysis (NMA) comparing the effects of various antiplatelet therapy regimens on SVG patency, mortality, and bleeding among adult patients following CABG. METHODS We will search CENTRAL, MEDLINE, EMBASE, CINAHL ACPJC, and grey literature sources (AHA, ACC, ESC, and CCC conference proceedings, ISRCTN Register, and WHO ICTRP) for randomized controlled trials (RCTs) which fit our criteria. RCTs that evaluate different antiplatelet regimens at least 3-months after CABG and have any of SVG patency, mortality, MACE, and major bleeding as outcomes will be selected. We will perform title and abstract screening, full-text screening, and data extraction independently and in duplicate. Two independent reviewers will also assess risk of bias (ROB) for each study, as well as evaluate quality of evidence using the GRADE framework. We will use R to perform the NMA and use low-dose ASA as reference within our network. We will report results as odds ratios with confidence intervals for direct comparisons, and credible intervals for indirect or mixed comparisons. We will use the surface under the cumulative ranking curve (SUCRA) to estimate the ranking of interventions. DISCUSSION Given the limited direct comparison of various antiplatelet regimens, a network approach is ideal to clarify the optimum antiplatelet therapy after CABG. We hope that our NMA will be the largest quantitative synthesis evaluating antiplatelet regimens among patients requiring CABG. It should inform clinicians and guideline developers in selecting the most effective and safest antiplatelet regimen.Systematic Review registration: International Prospective Register for Systematic Reviews (PROSPERO)-CRD42019127695.
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Affiliation(s)
- Saurabh Gupta
- Department of Surgery
- Department of Health Research Methods, Evidence and Impact
| | - Emilie P. Belley-Côté
- Department of Medicine
- Population Health Research Institute, Hamilton, Ontario, Canada
| | - Bram Rochwerg
- Department of Health Research Methods, Evidence and Impact
- Department of Medicine
| | - Anthony Bozzo
- Department of Surgery
- Department of Health Research Methods, Evidence and Impact
| | | | | | | | - Shamir Mehta
- Department of Medicine
- Population Health Research Institute, Hamilton, Ontario, Canada
| | - J-D. Schwalm
- Department of Medicine
- Population Health Research Institute, Hamilton, Ontario, Canada
| | - Richard P. Whitlock
- Department of Surgery
- Department of Health Research Methods, Evidence and Impact
- Population Health Research Institute, Hamilton, Ontario, Canada
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Abstract
BACKGROUND The open-access model has changed the landscape of academic publishing over the last 20 years. An unfortunate consequence has been the advent of predatory publishing, which exploits the open-access model for monetary gain by collecting publishing fees from authors under the pretense of being a legitimate publication while providing little-to-no peer review. This study aims to investigate the predatory publishing phenomenon in orthopaedic literature. METHODS We searched Beall's List of Predatory Journals and Publishers and another list of predatory journals for journal titles that are possibly related to orthopaedics. We then searched their web sites for the following information: total number of articles published, journal country of origin, author country of origin, article processing charge (APC), quoted review time, and location of the listed headquarters. We also reported the article quality of a random sample of these journals. We consulted InCites Journal Citation Reports to determine the number of nonpredatory orthopaedic publications that are indexed, and we manually searched a random sample of these legitimate journals for Beall's criteria. Additionally, we searched the Directory of Open Access Journals (DOAJ) and PubMed databases for any possible predatory journal titles. RESULTS We found 104 suspected predatory publishers, representing 225 possible predatory journals. One journal was indexed in the DOAJ, and 20 were indexed in PubMed. Review time was not identified for 56.2% of the journals, and 36.5% quoted a review time of <1 month. Nearly half of the listed addresses of the publishers were either unsearchable or led to residential or empty lots. Eighty-two legitimate journals were identified. The median APC was $420 for predatory journals and $2,900 for legitimate journals. We found that a random sample of the legitimate journals published studies with higher reporting standards, but a few also contained 1 criterion that is found on Beall's list. CONCLUSIONS This study highlights the scope of orthopaedic predatory publishing. Possibly predatory journals outnumber legitimate orthopaedic journals. Orthopaedic surgeons should be aware of the suspected predatory journals and consult available online tools to identify them because distinguishing them from legitimate journals can be a challenge.
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Affiliation(s)
- James Ray Yan
- Division of Orthopaedics, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
| | - Hassan Baldawi
- Royal College of Surgeons in Ireland-Medical University of Bahrain, Adliya, Bahrain
| | - Johnathan Robert Lex
- University of Birmingham Medical School, University of Birmingham, Edgbaston, Birmingham, United Kingdom
| | - Gabriel Simchovich
- Michael G. DeGroote School of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Louis-Philippe Baisi
- Division of Orthopaedics, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
| | - Anthony Bozzo
- Division of Orthopaedics, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
| | - Michelle Ghert
- Division of Orthopaedics, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
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Salomone A, Bozzo A, Di Corcia D, Gerace E, Vincenti M. Occupational Exposure to Alcohol-Based Hand Sanitizers: The Diagnostic Role of Alcohol Biomarkers in Hair. J Anal Toxicol 2018; 42:157-162. [PMID: 29206963 DOI: 10.1093/jat/bkx094] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Accepted: 11/16/2017] [Indexed: 01/19/2023] Open
Abstract
Ethyl glucuronide (EtG) and fatty acid ethyl esters (FAEEs) in hair are effective direct biomarkers of ethanol ingestion, whose analytical determination can be used to discriminate between chronic and occasional ethanol intake. Ethanol is a compound widely used in some workplaces (e.g., clinics, hospitals) and is present in considerable amounts in mouthwash for oral cleaning, medications, cosmetic products, hydro-alcoholic disinfectants and antiseptics for hands. This study examined the ethyl alcohol exposure derived from hand disinfectants (in gel form) by simulating the typical occupational situation of medical-health workers (healthcare workers, nurses, surgeons, etc.) who frequently wash their hands with antiseptic sanitizer. Two types of hand disinfectants with 62% w/w of ethanol content were daily applied to the hands of a teetotaler for 20 times a day, for 4 consecutive weeks, thus simulating a typical workplace situation and a cumulative dermal exposure to ethanol of ~1,100 g. Different matrices (head, chest and beard hair, urine) were regularly sampled and analyzed using a ultra high-performance liquid chromatography tandem massspectrometry validated method for EtG and a (HS)SPME-GC-MS validated technique for FAEEs. The data obtained showed that a significant dermal absorption and/or inhalation of ethanol occurred, and that the use of detergents produce urinary EtG concentrations both higher than the cut-offs normally used for clinical and forensic analyses (either 100 and 500 ng/mL, depending on the context). The concentrations of the ethanol metabolites in the keratin matrices were, respectively, below the cut-off of 7 pg/mg for EtG and below 0.5 ng/mg for FAAEs (0.35 ng/mg for ethyl palmitate). In conclusion, the regular use of alcohol-based hand sanitizers can affect the concentration of urinary EtG and lead to positive analytical results, particularly when specimens are obtained shortly after sustained use of ethanol-containing hand sanitizer. On the other hand, direct biomarkers of alcohol abuse in the keratin matrix are capable of distinguishing between ethanol consumption and incidental exposures.
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Affiliation(s)
- A Salomone
- Centro Regionale Antidoping "A. Bertinaria", Regione Gonzole 10/1, 10043 Orbassano, Turin, Italy
| | - A Bozzo
- Dipartimento di Chimica, Università degli Studi di Torino, via P. Giuria 7, 10125 Turin, Italy
| | - D Di Corcia
- Centro Regionale Antidoping "A. Bertinaria", Regione Gonzole 10/1, 10043 Orbassano, Turin, Italy
| | - E Gerace
- Centro Regionale Antidoping "A. Bertinaria", Regione Gonzole 10/1, 10043 Orbassano, Turin, Italy
| | - M Vincenti
- Centro Regionale Antidoping "A. Bertinaria", Regione Gonzole 10/1, 10043 Orbassano, Turin, Italy.,Dipartimento di Chimica, Università degli Studi di Torino, via P. Giuria 7, 10125 Turin, Italy
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Bozzo A, Oitment C, Thornley P, Yan J, Habib A, Hoppe DJ, Athwal GS, Ayeni OR. Humeral Avulsion of the Glenohumeral Ligament: Indications for Surgical Treatment and Outcomes-A Systematic Review. Orthop J Sports Med 2017; 5:2325967117723329. [PMID: 28840152 PMCID: PMC5560515 DOI: 10.1177/2325967117723329] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Background: The inferior glenohumeral ligament, the most important static anterior stabilizer of the shoulder, becomes disrupted in humeral avulsion of the glenohumeral ligament (HAGL) lesions. Unfortunately, HAGL lesions commonly go unrecognized. A missed HAGL during an index operation to treat anterior shoulder instability may lead to persistent instability. Currently, there are no large studies describing the indications for surgical repair or the outcomes of patients with HAGL lesions. Purpose: To search the literature to identify surgical indications for the treatment of HAGL lesions and discuss reported outcomes. Study Design: Systematic review; Level of evidence, 4. Methods: Two reviewers completed a comprehensive literature search of 3 online databases (MEDLINE, EMBASE, and Cochrane Library) from inception until May 25, 2016, using the keywords “humeral avulsion of the glenohumeral ligament” or “HAGL” to generate a broad search. Systematic screening of eligible studies was undertaken in duplicate. Abstracted data were organized in table format, with descriptive statistics presented. Results: After screening, 18 studies comprising 118 patients were found that described surgical intervention and outcomes for HAGL lesions. The mean patient was 22 years (range, 12-50 years), and 82% were male. Sports injuries represented 72% of all HAGL injuries. The main surgical indication was primary anterior instability, followed by pain and failed nonoperative management. Commonly associated injuries in patients with identified HAGL lesions included a Bankart lesion (15%), Hill-Sachs lesions (13%), and glenoid bone loss (7%). Reporting of outcome scores varied among the included studies. Meta-analysis was not possible, but all included studies reported significantly improved postoperative stability and function. There were no demonstrated differences in outcomes for patients treated with open versus arthroscopic surgical techniques. All but 2 patients undergoing operative management for HAGL lesions were able to return to sport at their previous levels; these included Olympians and professional athletes. Conclusion: HAGL lesions typically occur in younger male patients and are often associated with Bankart lesions and bone loss. Open and arthroscopic management techniques are both effective in preventing recurrent instability.
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Affiliation(s)
- Anthony Bozzo
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
| | - Colby Oitment
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
| | - Patrick Thornley
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
| | - James Yan
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
| | - Anthony Habib
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
| | - Daniel J Hoppe
- Orthopaedic Sports Medicine Program, Women's College Hospital, University of Toronto, Toronto, Ontario, Canada
| | - George S Athwal
- Roth McFarlane Hand and Upper Limb Center, St Joseph's Health Care, University of Western Ontario, London, Ontario, Canada
| | - Olufemi R Ayeni
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
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Abstract
BACKGROUND The journal impact factor (JIF) is thought to reflect the average number of citations an article will receive and therefore can influence study impact and clinical decision making. However, analysis of citation rates across multiple scientific and research domains has shown that most articles will not reach this expected number of citations. This phenomenon is known as citation skew and it has not previously been examined in the orthopaedic literature. The objective of this study was to determine the extent to which citation skew exists within orthopaedic journals and thus to determine whether the JIF in the orthopaedic literature reflects individual study citation rates. METHODS We used data from the Thomson Reuters (now Clarivate Analytics) Web of Science to determine the 2015 JIF and citation distribution for all orthopaedic journals listed in the database. We calculated the percentage of articles with fewer citations than the JIF for each journal. Finally, we analyzed the citation distribution within groups of orthopaedic subspecialty publications. RESULTS We identified a total of 74 orthopaedic journals and 29,296 publications for the years 2013 and 2014. Across all orthopaedic journals, 85% of published articles are cited fewer times than the JIF would indicate. The median number of citations of all articles was zero for all journals (interquartile range = 0-0) except for seven journals, for which the median number of citations per article was 1. CONCLUSION Citation skew is prevalent across the orthopaedic literature. Most published work is not cited in the first 2 years following publication, and the JIFs are the result of a few highly cited articles. The assessment of an individual orthopaedic study's quality should not be determined by the JIF but rather by direct evaluation of the methodology, relevance, and appropriateness of the study's conclusions.
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Affiliation(s)
- Anthony Bozzo
- Division of Orthopaedic Surgery (Dr. Bozzo, Dr. Oitment, and Dr. Evaniew), Department of Surgery, McMaster University, Hamilton, Ontario, Canada, and Hamilton Health Sciences (Dr. Ghert), Juravinski Hospital and Cancer Center, Hamilton
| | - Colby Oitment
- Division of Orthopaedic Surgery (Dr. Bozzo, Dr. Oitment, and Dr. Evaniew), Department of Surgery, McMaster University, Hamilton, Ontario, Canada, and Hamilton Health Sciences (Dr. Ghert), Juravinski Hospital and Cancer Center, Hamilton
| | - Nathan Evaniew
- Division of Orthopaedic Surgery (Dr. Bozzo, Dr. Oitment, and Dr. Evaniew), Department of Surgery, McMaster University, Hamilton, Ontario, Canada, and Hamilton Health Sciences (Dr. Ghert), Juravinski Hospital and Cancer Center, Hamilton
| | - Michelle Ghert
- Division of Orthopaedic Surgery (Dr. Bozzo, Dr. Oitment, and Dr. Evaniew), Department of Surgery, McMaster University, Hamilton, Ontario, Canada, and Hamilton Health Sciences (Dr. Ghert), Juravinski Hospital and Cancer Center, Hamilton
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Affiliation(s)
- Patrick Thornley
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, HHS Hamilton General Hospital, Hamilton, Ontario, Canada
| | - Anthony Habib
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, HHS Hamilton General Hospital, Hamilton, Ontario, Canada
| | - Anthony Bozzo
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, HHS Hamilton General Hospital, Hamilton, Ontario, Canada
| | - Nathan Evaniew
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, HHS Hamilton General Hospital, Hamilton, Ontario, Canada
| | - Michelle Ghert
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, HHS Juravinski Cancer Centre, Hamilton, Ontario, Canada
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Oitment C, Sivakumar BS, Bozzo A, McCarthy C, Wong P, Tetsworth K. Minimally Traumatic Spinopelvic Dissociation With Prolonged Bisphosphonate Use. Orthopedics 2016; 39:e753-5. [PMID: 27280626 DOI: 10.3928/01477447-20160526-08] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Accepted: 07/22/2015] [Indexed: 02/03/2023]
Abstract
Bisphosphonates have become the first-line treatment for diseases involving excessive osteoclast-mediated bone resorption. However, evidence suggests that elevated doses or prolonged treatment may impair normal skeletal mineralization and may be associated with fractures. The majority of these fractures are located in the subtrochanteric region. This article presents the first described case of atraumatic spinopelvic dissociation related to a combination of osteoporosis and prolonged bisphosphonate use. The current literature also is reviewed, and putative mechanisms and management options are discussed. [Orthopedics. 2016; 39(4):e753-e755.].
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Cots D, Merkis C, Rolando A, Bozzo A, Cristofolini A, Diaz T, Gauna H, Romanini M. Effects of chronic stress on corticosterone plasma levels and the immunolocalization of cyclooxygenase-2. Placenta 2015. [DOI: 10.1016/j.placenta.2015.01.474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Romanini M, Rolando A, Bozzo A, Borgui D, Cots D, Diaz T, Alustiza F, Gauna H. Immunolocalization of hypoxia-inducible factor-1α in placental tissue of stressed rats. Placenta 2015. [DOI: 10.1016/j.placenta.2015.01.543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Al Qahtani S, Hamdy R, Bozzo A, Janelle C. Slipped capital femoral epiphysis in a healthy 5-year-old child: A case report and literature review. Saudi J Med Med Sci 2014. [DOI: 10.4103/1658-631x.137009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Bozzo A, Marcoux J, Radhakrishna M, Pelletier J, Goulet B. The role of magnetic resonance imaging in the management of acute spinal cord injury. J Neurotrauma 2010; 28:1401-11. [PMID: 20388006 DOI: 10.1089/neu.2009.1236] [Citation(s) in RCA: 150] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Magnetic resonance imaging (MRI) has become the gold standard for imaging neurological tissues including the spinal cord. The use of MRI for imaging in the acute management of patients with spinal cord injury has increased significantly. This paper used a vigorous literature review with Downs and Black scoring, followed by a Delphi vote on the main conclusions. MRI is strongly recommended for the prognostication of acute spinal cord injury. The sagittal T2 sequence was particularly found to be of value. Four prognostication patterns were found to be predictive of neurological outcome (normal, single-level edema, multi-level edema, and mixed hemorrhage and edema). It is recommended that MRI be used to direct clinical decision making. MRI has a role in clearance, the ruling out of injury, of the cervical spine in the obtunded patient only if there is abnormality of the neurological exam. Patients with cervical spinal cord injuries have an increased risk of vertebral artery injuries but the literature does not allow for recommendation of magnetic resonance angiography as part of the routine protocol. Finally, time repetition (TR) and time echo (TE) values used to evaluate patients with acute spinal cord injury vary significantly. All publications with MRI should specify the TR and TE values used.
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Affiliation(s)
- Anthony Bozzo
- Neurosurgery Department, McGill University Health Centre, Montreal, Quebec, Canada
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Rolando A, Romanini MC, Mugnaini MT, Bozzo A, Pastorino I, Soñez CA. Ultrastructural Study of Spermatogenesis in Eisenia foetida (Annelida, Oligochaeta). INT J MORPHOL 2007. [DOI: 10.4067/s0717-95022007000200005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Romanini MC, Paz DA, Rodríguez N, Rolando AN, Mugnaini MT, Soñez CA, Bozzo A, Marioli JM, Pastorino IC, Gauna HF. Relative Concentrations of Placental Lactogen II and PRL-Like Protein-A in Stressed Rats Placenta. INT J MORPHOL 2007. [DOI: 10.4067/s0717-95022007000100011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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