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Fuggle NR, Reginster JY, Al-Daghri N, Bruyere O, Burlet N, Campusano C, Cooper C, Perez AD, Halbout P, Ghi T, Kaufman JM, Kurt A, Matijevic R, Radermecker RP, Tuzun S, Veronese N, Rizzoli R, Harvey NC, Brandi ML, Brandi ML. Radiofrequency echographic multi spectrometry (REMS) in the diagnosis and management of osteoporosis: state of the art. Aging Clin Exp Res 2024; 36:135. [PMID: 38904870 PMCID: PMC11192661 DOI: 10.1007/s40520-024-02784-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Accepted: 05/23/2024] [Indexed: 06/22/2024]
Abstract
Radiofrequency Echographic Multi Spectrometry (REMS) is a radiation-free, portable technology, which can be used for the assessment and monitoring of osteoporosis at the lumbar spine and femoral neck and may facilitate wider access to axial BMD measurement compared with standard dual-energy x-ray absorptiometry (DXA).There is a growing literature demonstrating a strong correlation between DXA and REMS measures of BMD and further work supporting 5-year prediction of fracture using the REMS Fragility Score, which provides a measure of bone quality (in addition to the quantitative measure of BMD).The non-ionising radiation emitted by REMS allows it to be used in previously underserved populations including pregnant women and children and may facilitate more frequent measurement of BMD.The portability of the device means that it can be deployed to measure BMD for frail patients at the bedside (avoiding the complications in transfer and positioning which can occur with DXA), in primary care, the emergency department, low-resource settings and even at home.The current evidence base supports the technology as a useful tool in the management of osteoporosis as an alternative to DXA.
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Affiliation(s)
- Nicholas R Fuggle
- MRC Lifecourse Epidemiology Centre, University of Southampton, Southampton, UK
| | - Jean-Yves Reginster
- The European Society for Clinical and Economic Aspects of Osteoporosis, Osteoarthritis and Musculoskeletal Diseases (ESCEO), Liege, Belgium
- Protein Research Chair, Biochemistry Department, College of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Nasser Al-Daghri
- Chair for Biomarkers of Chronic Diseases, Biochemistry Department, College of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Olivier Bruyere
- Faculty of Medicine, Department of Public Health Sciences, Research Unit in Public Health, Epidemiology and Health Economics (URSAPES), University of Liège, Liege, Belgium
| | - Nansa Burlet
- The European Society for Clinical and Economic Aspects of Osteoporosis, Osteoarthritis and Musculoskeletal Diseases (ESCEO), Liege, Belgium
| | - Claudia Campusano
- Faculty of Medicine, Clinica Universidad de los Andes, Universidad de los Andes, Santiago, Chile
| | - Cyrus Cooper
- MRC Lifecourse Epidemiology Centre, University of Southampton, Southampton, UK
- NIHR Southampton Biomedical Research Centre, University of Southampton, Southampton, UK
- NIHR Oxford Biomedical Research Centre, University of Oxford, Oxford, UK
| | - Adolfo Diez Perez
- Department of Internal Medicine, Hospital del Mar-IMIM-UAB, CIBERFES, Institute Carlos III, Barcelona, Barcelona, Spain
| | - Philippe Halbout
- The International Osteoporosis Foundation (IOF), Nyon, Switzerland
| | - Tullio Ghi
- Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Jean-Marc Kaufman
- Department of Endocrinology, Ghent University Hospital, Ghent, Belgium
| | - Andreas Kurt
- Department of Orthopaedic and Trauma Surgery, Community Clinics Middle Rhine, Campus Kemperhof, Koblenz, Germany
| | - Radmila Matijevic
- Faculty of Medicine, Clinic for Orthopedic Surgery and Traumatology, University of Novi Sad, Clinical Center of Vojvodina, Novi Sad, Serbia
| | - Regis P Radermecker
- Department of Diabetes, Nutrition and Metabolic Disorders, Clinical Pharmacology, University of Liege, CHU de Liège, Liège, Belgium
| | - Sansin Tuzun
- Department of Physical Medicine and Rehabilitation, Cerrahpaşa School of Medicine, Istanbul University- Cerrahpaşa, Istanbul, Turkey
| | - Nicola Veronese
- Chair for Biomarkers of Chronic Diseases, Biochemistry Department, College of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia.
- Department of Internal Medicine, Geriatrics Section, University of Palermo, Palermo, Italy.
| | - Rene Rizzoli
- Division of Bone Diseases, Faculty of Medicine, Geneva University Hospitals, Geneva, Switzerland
| | - Nicholas C Harvey
- MRC Lifecourse Epidemiology Centre, University of Southampton, Southampton, UK
- NIHR Southampton Biomedical Research Centre, University of Southampton, Southampton, UK
| | - Maria Luisa Brandi
- Metabolic Bone Diseases Unit, Department of Surgery and Translational Medicine, University of Florence, Florence, Italy
| | - Maria-Luisa Brandi
- Metabolic Bone Diseases Unit, Department of Surgery and Translational Medicine, University of Florence, Florence, Italy.
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Meertens R, Lopez B, Crone B, Gundry M, Metcalfe-Smith E, Gibbard W, Jubb T, Manning F, Scott P, McWilliam R. Development of an opportunistic diagnostic prediction algorithm for osteoporosis and fragility fracture risk estimates from forearm radiographs (The OFFER1 Study). JBMR Plus 2024; 8:ziae020. [PMID: 38505820 PMCID: PMC10945724 DOI: 10.1093/jbmrpl/ziae020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 12/22/2023] [Accepted: 01/19/2024] [Indexed: 03/21/2024] Open
Abstract
Osteoporosis and associated fractures are an increasingly prevalent concern with an ageing population. This study reports testing of IBEX Bone Health (IBEX BH) software, applied following acquisition of forearm radiographs. IBEX Bone Health analyses the radiograph to measure areal bone mineral density (aBMD) at the examination site. A non-randomized cross-sectional study design was performed involving 261 (254 after exclusions) participants (112/142 m/f; mean age 70.8 years (SD+/-9.0); 53 with osteoporosis). They underwent posterior-anterior distal forearm radiographs; dual X-ray absorptiometry (DXA) of the wrists, hips, and lumbar spine; and questionnaires exploring clinical risk factors. IBEX Bone Health automatically identifies regions of interest (ROI) at the ultra-distal (UD) and distal third (TD) regions of the radius. Analysis investigated area under the receiver operating characteristics curve performance of IBEX BH for prediction of (i) osteoporosis (based on clinical reporting of the hip and spine DXA) and (ii) treatment recommendations by Fracture Risk Assessment Tool (FRAX) inclusive of neck of femur (NoF) areal bone mineral density (aBMD) results following National Osteoporosis Guideline Group (NOGG) guidelines. Area under the receiver operating characteristics curve for osteoporosis prediction at the UD and TD ROIs were 0.86 (99% confidence interval (CI) [0.80, 0.91]) and 0.81 (99% CI [0.75, 0.88]), respectively. Area under the receiver operating characteristics curve for treatment recommendation using FRAX inclusive of NoF aBMD at the UD and TD ROIs were 0.95 (99% CI [0.91, 1.00]) and 0.97 (99% CI [0.93,1.00]), respectively. With a matched sensitivity to FRAX (without NoF aBMD) 0.93 (99% CI [0.78, 0.99]), IBEX BH predicted at the UD and TD ROIs recommended treatment outcomes by NOGG guidelines using FRAX (with NoF aBMD) with specificity 0.89 (99% CI 0.83, 0.94]) and 0.93 (99% CI [0.87, 0.97]), respectively. This is compared with 0.60 (99% CI [0.51, 0.69]) for FRAX (without NoF aBMD). Results demonstrate the potential clinical utility of IBEX BH as an opportunistic screening tool.
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Affiliation(s)
- Robert Meertens
- University of Exeter, Medical Imaging Exeter, EX1 2LU, United Kingdom
| | - Ben Lopez
- Ibex Innovations Ltd., Sedgefield, TS21 3FD, United Kingdom
| | - Ben Crone
- Ibex Innovations Ltd., Sedgefield, TS21 3FD, United Kingdom
| | - Mike Gundry
- University of Exeter, Medical Imaging Exeter, EX1 2LU, United Kingdom
| | | | - Warren Gibbard
- Ibex Innovations Ltd., Sedgefield, TS21 3FD, United Kingdom
| | - Thomas Jubb
- Ibex Innovations Ltd., Sedgefield, TS21 3FD, United Kingdom
| | - Fay Manning
- University of Exeter, Medical Imaging Exeter, EX1 2LU, United Kingdom
| | - Paul Scott
- Ibex Innovations Ltd., Sedgefield, TS21 3FD, United Kingdom
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Ramirez Zegarra R, Degennaro V, Brandi ML, Cagninelli G, Casciaro S, Celora G, Conversano F, Lombardi FA, Pisani P, Ghi T. Longitudinal changes of the femoral bone mineral density from first to third trimester of pregnancy: bone health assessment by means of non-ionizing REMS technology. Aging Clin Exp Res 2024; 36:31. [PMID: 38334854 PMCID: PMC10858072 DOI: 10.1007/s40520-023-02677-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 12/07/2023] [Indexed: 02/10/2024]
Abstract
BACKGROUND Throughout the pregnancy, there is a substantial transfer of calcium from the maternal skeleton to the fetus, which leads to a transient net reduction of the maternal bone mineral density. AIMS To assess longitudinally the changes in the bone mineral density at the femoral neck between the first and third trimester of pregnancy in a cohort of healthy participants using Radiofrequency Echographic Multi Spectrometry (REMS) technology. METHODS Prospective, cohort study conducted at the University hospital of Parma, Italy between July 2022 and February 2023. We recruited healthy participants with an uncomplicated singleton pregnancy before 14 completed weeks of gestation. All included participants were submitted to a sonographic examination of the femoral neck to assess the bone mineral density (and the corresponding Z-score values) using REMS at 11-13 and 36-38 weeks of pregnancy. The primary outcome was the change in the bone mineral density values at the maternal femoral neck between the first and third trimester of pregnancy. RESULTS Over a period of 7 months, a total of 65 participants underwent bone mineral density measurement at the femoral neck at first and third trimester of the pregnancy using REMS. A significant reduction of the bone mineral density at the femoral neck (0.723 ± 0.069 vs 0.709 ± 0.069 g/cm2; p < 0.001) was noted with a mean bone mineral density change of - 1.9 ± 0.6% between the first and third trimester of pregnancy. At multivariable linear regression analysis, none of the demographic or clinical variables of the study population proved to be independently associated with the maternal bone mineral density changes at the femoral neck. CONCLUSIONS Our study conducted on a cohort of healthy participants with uncomplicated pregnancy demonstrates that there is a significant reduction of bone mineral density at femoral neck from early to late gestation.
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Affiliation(s)
- Ruben Ramirez Zegarra
- Department of Medicine and Surgery, Obstetrics and Gynecology Unit, University of Parma, Viale A. Gramsci 14, 43126, Parma, Italy
| | - Valentina Degennaro
- Department of Medicine and Surgery, Obstetrics and Gynecology Unit, University of Parma, Viale A. Gramsci 14, 43126, Parma, Italy
| | - Maria Luisa Brandi
- Fondazione Italiana per la Ricerca sulle Malattie dell'Osso (F.I.R.M.O.), Florence, Italy
| | - Greta Cagninelli
- Department of Medicine and Surgery, Obstetrics and Gynecology Unit, University of Parma, Viale A. Gramsci 14, 43126, Parma, Italy
| | - Sergio Casciaro
- Institute of Clinical Physiology, National Research Council, Lecce, Italy
- Echolight Spa, Lecce, Italy
| | - Gabriella Celora
- Department of Medicine and Surgery, Obstetrics and Gynecology Unit, University of Parma, Viale A. Gramsci 14, 43126, Parma, Italy
| | - Francesco Conversano
- Institute of Clinical Physiology, National Research Council, Lecce, Italy
- Echolight Spa, Lecce, Italy
| | | | - Paola Pisani
- Institute of Clinical Physiology, National Research Council, Lecce, Italy
| | - Tullio Ghi
- Department of Medicine and Surgery, Obstetrics and Gynecology Unit, University of Parma, Viale A. Gramsci 14, 43126, Parma, Italy.
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Toro G, Braile A, Liguori S, Moretti A, Landi G, Cecere AB, Conza G, De Cicco A, Tarantino U, Iolascon G. The role of the fracture liaison service in the prevention of atypical femoral fractures. Ther Adv Musculoskelet Dis 2023; 15:1759720X231212747. [PMID: 38035253 PMCID: PMC10685792 DOI: 10.1177/1759720x231212747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 09/29/2023] [Indexed: 12/02/2023] Open
Abstract
Osteoporosis and fragility fractures (FFs) are considered critical health problems by the World Health Organization (WHO) because of high morbidity, mortality, and healthcare costs. The occurrence of a FF raises the risk of a subsequent fracture (refracture). The hip is the most common site of fragility refracture, and its onset is associated with a further increase in patient's morbidity, mortality, and socioeconomic burden. Therefore, the prevention of refracture is essential. In this context, fracture liaison service (FLS) demonstrated to be able to reduce FF risk and also improve patients' adherence to anti-osteoporotic treatments, particularly for bisphosphonates (BPs). However, long-term and high adherence to BPs may lead to atypical femoral fractures (AFFs). These latter are tensile side stress fractures of the femur, with high rates of complications, including delayed and non-healing. An effective FLS should be able to prevent both FF and AFF. A comprehensive and interdisciplinary approach, through the involvement and education of a dedicated team of healthcare professionals (i.e. orthopedic, geriatrician, primary care physician, rehabilitation team, and bone nurse) for evaluating both FF and AFF risks might be useful to improve the standard of care.
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Affiliation(s)
- Giuseppe Toro
- Department of Medical and Surgical Specialties and Dentistry, University of Campania “Luigi Vanvitelli”, Via L. De Crecchio 4, Naples 80138, Italy
| | - Adriano Braile
- Department of Medical and Surgical Specialties and Dentistry, University of Campania “Luigi Vanvitelli”, Naples, Italy
- Unit of Orthopaedics and Traumatology, Ospedale del Mare, Naples, Italy
| | - Sara Liguori
- Department of Medical and Surgical Specialties and Dentistry, University of Campania “Luigi Vanvitelli”, Naples, Italy
| | - Antimo Moretti
- Department of Medical and Surgical Specialties and Dentistry, University of Campania “Luigi Vanvitelli”, Naples, Italy
| | - Giovanni Landi
- Unit of Orthopaedics and Traumatology, Santa Maria della Speranza Hospital, Battipaglia, Italy
| | | | - Gianluca Conza
- Department of Medical and Surgical Specialties and Dentistry, University of Campania “Luigi Vanvitelli”, Naples, Italy
| | - Annalisa De Cicco
- Department of Medical and Surgical Specialties and Dentistry, University of Campania “Luigi Vanvitelli”, Naples, Italy
- Unit of Orthopaedics and Traumatology, Santa Maria delle Grazie Hospital, Pozzuoli, Italy
| | - Umberto Tarantino
- Department of Clinical Sciences and Translational Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Giovanni Iolascon
- Department of Medical and Surgical Specialties and Dentistry, University of Campania “Luigi Vanvitelli”, Naples, Italy
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Kirilov N, Bischoff F, Vladeva S, Bischoff E. A Case Showing a New Diagnostic Aspect of the Application of Radiofrequency Echographic Multi-Spectrometry (REMS). Diagnostics (Basel) 2023; 13:3224. [PMID: 37892045 PMCID: PMC10606550 DOI: 10.3390/diagnostics13203224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 10/06/2023] [Accepted: 10/12/2023] [Indexed: 10/29/2023] Open
Abstract
Radiofrequency echographic multi-spectrometry (REMS) is an ultrasound technique that has been recently introduced in the medical field to detect osteoporosis and fracture risk at axial sites. The use of sonography to visualize the region of interest (ROI) of the hip neck provides the opportunity to identify occult fractures. A 91-year-old woman with persistent right leg pain was referred to rheumatologist due to a known history of arthritis and osteoporosis. She was able to walk using a crutch, although experiencing an antalgic gait. The patient had recently fallen on her right side from standing height. During the visualization of the ROI of the right femoral neck using REMS, an abrupt break of the femoral cortex suspected to be a fracture was seen; therefore, the measurement of the femoral neck was performed on the left side. The T-score had value of -2.9 SD and the fragility score was 86.7. Due to unclear signs of a fracture after an X-ray of the hip, a computed tomography (CT) exam of the hip was performed, which revealed a femoral neck fracture. Occult fractures of the femoral neck are challenging to diagnose and require numerous radiologic exams. The use of ultrasound as a method to measure bone density allows the simultaneous diagnosis of osteoporosis and detection of fractures.
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Affiliation(s)
- Nikola Kirilov
- Department of Orthopedics and Traumatology, Faculty of Medicine, Medical University—Pleven, 5800 Pleven, Bulgaria
| | | | - Stoyanka Vladeva
- Department of Health Care, Faculty of Medicine, Trakia University, 6015 Stara Zagora, Bulgaria;
| | - Elena Bischoff
- Faculty of Public Health and Healthcare, University “Prof Dr Asen Zlatarov”—Burgas, 8010 Burgas, Bulgaria;
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Al Refaie A, Baldassini L, Mondillo C, Giglio E, De Vita M, Tomai Pitinca MD, Gonnelli S, Caffarelli C. Radiofrequency Echographic Multi Spectrometry (R.E.M.S.): New Frontiers for Ultrasound Use in the Assessment of Bone Status-A Current Picture. Diagnostics (Basel) 2023; 13:diagnostics13101666. [PMID: 37238151 DOI: 10.3390/diagnostics13101666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 04/22/2023] [Accepted: 05/04/2023] [Indexed: 05/28/2023] Open
Abstract
Osteoporosis is a frequently occurring skeletal disease, and osteoporosis-related fractures represent a significant burden for healthcare systems. Dual-Energy X-ray Absorptiometry (DXA) is the most commonly used method for assessing bone mineral density (BMD). Today, particular attention is being directed towards new technologies, especially those that do not use radiation, for the early diagnosis of altered bone status. Radiofrequency Echographic Multi Spectrometry (REMS) is a non-ionizing technology that evaluates the bone status at axial skeletal sites by analyzing raw ultrasound signals. In this review, we evaluated the data on the REMS technique present in the literature. The literature data confirmed diagnostic concordance between BMD values obtained using DXA and REMS. Furthermore, REMS has adequate precision and repeatability characteristics, is able to predict the risk of fragility fractures, and may be able to overcome some of the limitations of DXA. In conclusion, REMS could become the method of choice for the assessment of bone status in children, in women of childbearing age or who are pregnant, and in several secondary osteoporosis conditions due to its good precision and replicability, its transportability, and the absence of ionizing radiation. Finally, REMS may allow qualitative and not just quantitative assessments of bone status.
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Affiliation(s)
- Antonella Al Refaie
- Section of Internal Medicine, Department of Medicine, Surgery and Neuroscience, University of Siena, 53100 Siena, Italy
| | - Leonardo Baldassini
- Section of Internal Medicine, Department of Medicine, Surgery and Neuroscience, University of Siena, 53100 Siena, Italy
| | - Caterina Mondillo
- Section of Internal Medicine, Department of Medicine, Surgery and Neuroscience, University of Siena, 53100 Siena, Italy
| | - Elisa Giglio
- Section of Internal Medicine, Department of Medicine, Surgery and Neuroscience, University of Siena, 53100 Siena, Italy
| | - Michela De Vita
- Section of Internal Medicine, Department of Medicine, Surgery and Neuroscience, University of Siena, 53100 Siena, Italy
| | - Maria Dea Tomai Pitinca
- Section of Internal Medicine, Department of Medicine, Surgery and Neuroscience, University of Siena, 53100 Siena, Italy
| | - Stefano Gonnelli
- Section of Internal Medicine, Department of Medicine, Surgery and Neuroscience, University of Siena, 53100 Siena, Italy
| | - Carla Caffarelli
- Section of Internal Medicine, Department of Medicine, Surgery and Neuroscience, University of Siena, 53100 Siena, Italy
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Carey JJ, Chih-Hsing Wu P, Bergin D. Risk assessment tools for osteoporosis and fractures in 2022. Best Pract Res Clin Rheumatol 2022; 36:101775. [PMID: 36050210 DOI: 10.1016/j.berh.2022.101775] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Osteoporosis is one of the frequently encountered non-communicable diseases in the world today. Several hundred million people have osteoporosis, with many more at risk. The clinical feature is a fragility fracture (FF), which results in major reductions in the quality and quantity of life, coupled with a huge financial burden. In recognition of the growing importance, the World Health Organisation established a working group 30 years ago tasked with providing a comprehensive report to understand and assess the risk of osteoporosis in postmenopausal women. Dual-energy X-ray absorptiometry (DXA) is the most widely endorsed technology for assessing the risk of fracture or diagnosing osteoporosis before a fracture occurs, but others are available. In clinical practice, important distinctions are essential to optimise the use of risk assessments. Traditional tools lack specificity and were designed for populations to identify groups at higher risk using a 'one-size-fits-all' approach. Much has changed, though the purpose of risk assessment tools remains the same. In 2022, many tools are available to aid the identification of those most at risk, either likely to have osteoporosis or suffer the clinical consequence. Modern technology, enhanced imaging, proteomics, machine learning, artificial intelligence, and big data science will greatly advance a more personalised risk assessment into the future. Clinicians today need to understand not only which tool is most effective and efficient for use in their practice, but also which tool to use for which patient and for what purpose. A greater understanding of the process of risk assessment, deciding who should be screened, and how to assess fracture risk and prognosis in older men and women more comprehensively will greatly reduce the burden of osteoporosis for patients, society, and healthcare systems worldwide. In this paper, we review the current status of risk assessment, screening and best practice for osteoporosis, summarise areas of uncertainty, and make some suggestions for future developments, including a more personalised approach for individuals.
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Affiliation(s)
- John J Carey
- National University of Ireland Galway, 1007, Clinical Sciences Institute, Galway, H91 V4AY, Ireland.
| | - Paulo Chih-Hsing Wu
- Institute of Gerontology, College of Medicine, National Cheng Kung University, Taiwan; Department of Family Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Director, Obesity/Osteoporosis Special Clinic, 138 Sheng-Li Road, Tainan, 70428, Taiwan
| | - Diane Bergin
- National University of Ireland Galway, 1007, Clinical Sciences Institute, Galway, H91 V4AY, Ireland; Galway University Hospitals, Ireland
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Reproducibility and Accuracy of the Radiofrequency Echographic Multi-Spectrometry for Femoral Mineral Density Estimation and Discriminative Power of the Femoral Fragility Score in Patients with Primary and Disuse-Related Osteoporosis. J Clin Med 2022; 11:jcm11133761. [PMID: 35807046 PMCID: PMC9267756 DOI: 10.3390/jcm11133761] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 06/25/2022] [Accepted: 06/27/2022] [Indexed: 02/04/2023] Open
Abstract
We aimed to investigate the reproducibility and accuracy of Radiofrequency Echographic Multi-Spectrometry (REMS) for femoral BMD estimation and the reproducibility and discriminative power of the REMS-derived femoral fragility score. 175 patients with primary and disuse-related osteoporosis were recruited: one femoral Dual-energy X-ray Absorptiometry (DXA) scan and two femoral REMS scans were acquired. No significant test—retest differences were observed for all REMS-derived variables. The diagnostic concordance between DXA and REMS was 63% (Cohen’s kappa = 0.31) in patients with primary osteoporosis and 13% (Cohen’s kappa: −0.04) in patients with disuse-related osteoporosis. No significant difference was observed between REMS and DXA for either femoral neck BMD (mean difference between REMS and DXA: −0.015 g/cm2) or total femur BMD (mean difference: −0.004 g/cm2) in patients with primary osteoporosis. Significant differences between the two techniques were observed in patients with disuse-related osteoporosis (femoral neck BMD difference: 0.136 g/cm2; total femur BMD difference: 0.236 g/cm2). Statistically significant differences in the fragility score were obtained between the fractured and non-fractured patients for both populations. In conclusion, REMS showed excellent test-retest reproducibility, but the diagnostic concordance between DXA and REMS was between minimal and poor. Further studies are required to improve the REMS—derived estimation of femoral BMD.
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Sergio RO, Nayelli RGE. Evaluation of the bone mineral density in the Mexican female population using the Radiofrequency Echographic Multi Spectrometry (REMS) technology. Arch Osteoporos 2022; 17:43. [PMID: 35257242 DOI: 10.1007/s11657-022-01080-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 02/15/2022] [Indexed: 02/03/2023]
Abstract
The bone health status of a Mexican female population, including a cohort of 455 women aged over 40 years, was assessed by Radiofrequency Echographic Multi Spectrometry (REMS). PURPOSE Assessment of the bone health status in an average female Mexican population with REMS. The secondary objective investigated age- and body mass index (BMI)-related effects on the diagnostic classification and the influence of risk factors for osteoporosis. METHODS Women aged over 40 years underwent a REMS scan at the lumbar spine and both femoral necks. The degree of correlation of the bone mineral density (BMD) across axial sites was assessed by the Pearson correlation coefficient (r), along with the diagnostic discordance. The association between risk factors, age, and BMI and diagnostic classification was determined by the chi-squared test. RESULTS Four hundred seventy-one women were enrolled. Osteoporosis was diagnosed in 11.0%, 8.1%, and 8.3% of cases at the lumbar spine and right and left femoral neck, respectively. The diagnostic agreement between the lumbar spine and femoral necks was about 73% (85% considering a 0.3 T-score tolerance), whereas the agreement between the femoral necks was 97.4% (99.6% considering a 0.3 T-score tolerance). Most of discordant cases were minor discordances. The correlation between the lumbar spine and femoral neck was r = 0.82 and 0.85, respectively, whereas both femoral necks correlated with r = 0.97. As expected, the prevalence of osteoporosis increased with age and decreased as BMI increased. CONCLUSION The widespread applicability of the non-ionizing REMS technology has been demonstrated in a representative Mexican cohort, covering wide age and BMI ranges. Age and BMI variations correlate with the prevalence of osteoporosis, in line with the recent scientific literature.
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Affiliation(s)
- Rosales-Ortiz Sergio
- Hospital de Gineco Obstetricia, No. 4 "Luis Castelazo Ayala", IMSS, Mexico City, Mexico.
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