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Sakka SD, Cheung MS. Management of primary and secondary osteoporosis in children. Ther Adv Musculoskelet Dis 2020; 12:1759720X20969262. [PMID: 33224280 PMCID: PMC7649886 DOI: 10.1177/1759720x20969262] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 10/05/2020] [Indexed: 12/13/2022] Open
Abstract
Osteoporosis in children differs from adults in terms of definition, diagnosis, monitoring and treatment options. Primary osteoporosis comprises primarily of osteogenesis imperfecta (OI), but there are significant other causes of bone fragility in children that require treatment. Secondary osteoporosis can be a result of muscle disuse, iatrogenic causes, such as steroids, chronic inflammation, delayed or arrested puberty and thalassaemia major. Investigations involve bone biochemistry, dual-energy X-ray absorptiometry scan for bone densitometry and vertebral fracture assessment, radiographic assessment of the spine and, in some cases, quantitative computed tomography (QCT) or peripheral QCT. It is important that bone mineral density (BMD) results are adjusted based on age, gender and height, in order to reflect size corrections in children. Genetics are being used increasingly for the diagnosis and classification of various cases of primary osteoporosis. Bone turnover markers are used less frequently in children, but can be helpful in monitoring treatment and transiliac bone biopsy can assist in the diagnosis of atypical cases of osteoporosis. The management of children with osteoporosis requires a multidisciplinary team of health professionals with expertise in paediatric bone disease. The prevention and treatment of fragility fractures and improvement of the quality of life of patients are important aims of a specialised service. The drugs used most commonly in children are bisphosphonates, that, with timely treatment, can give good results in improving BMD and reshaping vertebral fractures. The data regarding their effect on reducing long bone fractures are equivocal. Denosumab is being used increasingly for various conditions with mixed results. There are more drugs trialled in adults, but these are not yet licenced for children. Increasing awareness of risk factors for paediatric osteoporosis, screening and referral to a specialist team for appropriate management can lead to early detection and treatment of asymptomatic fractures and prevention of further bone damage.
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Affiliation(s)
- Sophia D Sakka
- Department of Endocrinology and Diabetes, Evelina London Children's Hospital, 3rd Floor, Becket House, Westminster Bridge Road, SE1 7EH, London, UK
| | - Moira S Cheung
- Department of Endocrinology and Diabetes, Evelina London Children's Hospital, London, UK
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Conley RB, Adib G, Adler RA, Åkesson KE, Alexander IM, Amenta KC, Blank RD, Brox WT, Carmody EE, Chapman-Novakofski K, Clarke BL, Cody KM, Cooper C, Crandall CJ, Dirschl DR, Eagen TJ, Elderkin AL, Fujita M, Greenspan SL, Halbout P, Hochberg MC, Javaid M, Jeray KJ, Kearns AE, King T, Koinis TF, Koontz JS, Kužma M, Lindsey C, Lorentzon M, Lyritis GP, Michaud LB, Miciano A, Morin SN, Mujahid N, Napoli N, Olenginski TP, Puzas JE, Rizou S, Rosen CJ, Saag K, Thompson E, Tosi LL, Tracer H, Khosla S, Kiel DP. Secondary Fracture Prevention: Consensus Clinical Recommendations from a Multistakeholder Coalition. J Bone Miner Res 2020; 35:36-52. [PMID: 31538675 DOI: 10.1002/jbmr.3877] [Citation(s) in RCA: 131] [Impact Index Per Article: 32.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 09/08/2019] [Accepted: 09/11/2019] [Indexed: 12/13/2022]
Abstract
Osteoporosis-related fractures are undertreated, due in part to misinformation about recommended approaches to patient care and discrepancies among treatment guidelines. To help bridge this gap and improve patient outcomes, the American Society for Bone and Mineral Research assembled a multistakeholder coalition to develop clinical recommendations for the optimal prevention of secondary fracture among people aged 65 years and older with a hip or vertebral fracture. The coalition developed 13 recommendations (7 primary and 6 secondary) strongly supported by the empirical literature. The coalition recommends increased communication with patients regarding fracture risk, mortality and morbidity outcomes, and fracture risk reduction. Risk assessment (including fall history) should occur at regular intervals with referral to physical and/or occupational therapy as appropriate. Oral, intravenous, and subcutaneous pharmacotherapies are efficacious and can reduce risk of future fracture. Patients need education, however, about the benefits and risks of both treatment and not receiving treatment. Oral bisphosphonates alendronate and risedronate are first-line options and are generally well tolerated; otherwise, intravenous zoledronic acid and subcutaneous denosumab can be considered. Anabolic agents are expensive but may be beneficial for selected patients at high risk. Optimal duration of pharmacotherapy is unknown but because the risk for second fractures is highest in the early post-fracture period, prompt treatment is recommended. Adequate dietary or supplemental vitamin D and calcium intake should be assured. Individuals being treated for osteoporosis should be reevaluated for fracture risk routinely, including via patient education about osteoporosis and fractures and monitoring for adverse treatment effects. Patients should be strongly encouraged to avoid tobacco, consume alcohol in moderation at most, and engage in regular exercise and fall prevention strategies. Finally, referral to endocrinologists or other osteoporosis specialists may be warranted for individuals who experience repeated fracture or bone loss and those with complicating comorbidities (eg, hyperparathyroidism, chronic kidney disease). © 2019 American Society for Bone and Mineral Research.
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Affiliation(s)
| | | | | | | | - Ivy M Alexander
- UConn School of Nursing, University of Connecticut, Storrs, CT, USA
| | - Kelly C Amenta
- Department of Physician Assistant Studies, Mercyhurst University, Erie, PA, USA
| | - Robert D Blank
- Department of Endocrinology, Metabolism and Clinical Nutrition, Medical College of Wisconsin, Milwaukee, WI, USA.,Garvan Institute of Medical Research, Darlinghurst, NSW, Australia
| | | | - Emily E Carmody
- Department of Orthopaedics and Rehabilitation, University of Rochester Medical Center, Rochester, NY, USA
| | | | - Bart L Clarke
- Division of Endocrinology, Diabetes, Metabolism, Nutrition, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | | | | | | | - Douglas R Dirschl
- Department of Orthopaedic Surgery and Rehabilitation Medicine, University of Chicago Medicine, Chicago, IL, USA
| | | | - Ann L Elderkin
- American Society for Bone and Mineral Research, Washington, DC, USA
| | - Masaki Fujita
- Science Department, International Osteoporosis Foundation, Nyon, Switzerland
| | - Susan L Greenspan
- Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | | | - Marc C Hochberg
- Division of Rheumatology, University of Maryland School of Medicine and VA Maryland Health Care System, Baltimore, MD, USA
| | - Muhammad Javaid
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, USA
| | - Kyle J Jeray
- Prisma Health - Upstate (formerly Greenville Health System), Greenville, SC, USA
| | - Ann E Kearns
- Division of Endocrinology, Diabetes, Metabolism, Nutrition, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - Toby King
- US Bone and Joint Initiative, Rosemont, IL, USA
| | | | - Jennifer Scott Koontz
- Orthopedics & Sports Medicine, Newton Medical Center, Newton, KS, USA.,Department of Family and Community Medicine, University of Kansas School of Medicine, Wichita, KS, USA
| | - Martin Kužma
- 5th Department of Internal Medicine, University Hospital, Comenius University, Bratislava, Slovakia
| | - Carleen Lindsey
- Bones, Backs and Balance, LLC, Bristol Physical Therapy, LLC, Bristol, CT, USA
| | - Mattias Lorentzon
- Mary MacKillop Institute for Health Research, Australian Catholic University, Melbourne, Victoria, Australia.,Department of Geriatric Medicine, Sahlgrenska University Hospital, Mölndal, Sweden.,Geriatric Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | | | | | | | | | - Nadia Mujahid
- Department of Medicine, Warren Alpert Medical School, Brown University, Providence, RI, USA
| | - Nicola Napoli
- Department of Nutrition and Metabolic Disorders, Campus Bio-Medico University of Rome, Rome, Italy.,Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | | | - J Edward Puzas
- Department of Orthopaedics and Rehabilitation, University of Rochester Medical Center, Rochester, NY, USA
| | | | - Clifford J Rosen
- Tufts University School of Medicine, Boston, MA, USA.,Maine Medical Center Research Institute, Portland, ME, USA
| | - Kenneth Saag
- Division of Clinical Immunology and Rheumatology, University of Alabama at Birmingham, Birmingham, AL, USA
| | | | - Laura L Tosi
- Department of Orthopaedic Surgery and Sports Medicine, Children's National Hospital, Washington, DC, USA
| | - Howard Tracer
- Center for Evidence and Practice Improvement, Agency for Healthcare Research and Quality, Rockville, MD, USA
| | - Sundeep Khosla
- Division of Endocrinology, Diabetes, Metabolism, Nutrition, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - Douglas P Kiel
- Harvard Medical School, Musculoskeletal Research Center, Marcus Institute for Aging Research, Hebrew SeniorLife, Boston, MA, USA
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Biguetti CC, De Oliva AH, Healy K, Mahmoud RH, Custódio IDC, Constantino DH, Ervolino E, Duarte MAH, Fakhouri WD, Matsumoto MA. Medication-related osteonecrosis of the jaws after tooth extraction in senescent female mice treated with zoledronic acid: Microtomographic, histological and immunohistochemical characterization. PLoS One 2019; 14:e0214173. [PMID: 31199812 PMCID: PMC6568384 DOI: 10.1371/journal.pone.0214173] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Accepted: 05/07/2019] [Indexed: 12/12/2022] Open
Abstract
Treatment with cumulative dosages of zoledronic acid (ZA) in elderly patients is a risk factor for the development of medication-related osteonecrosis of the jaws (MRONJ), mainly related to surgical triggers such as tooth extraction. However, animal models for the investigation and understanding of MRONJ pathophysiology in senescent and postmenopausal stages remains to be developed and characterized. The aim of this study was to analyze MRONJ development in senescent female mice treated with cumulative dosages of ZA. For this purpose, twenty 129/Sv female mice, 64 weeks old, were treated with 0.9% saline solution as control group (n = 10), and with ZA at 250μg/Kg (n = 10), once a week, starting 4 weeks before the upper right incisor extraction and until the end of the experimental time points (7 days and 21 days). At 7 and 21 days post-surgery, specimens were harvested for microCT, histological, birefringence and immunohistochemical analysis. Clinically, an incomplete epithelialization was observed in ZA group at 7 days and a delayed bone matrix mineralization and collagen maturation at 7 and 21 days compared to the controls. Controls revealed sockets filled with mature bone at 21 days as observed by microCT and birefringence, while ZA group presented delayed bone deposition at 7 and 21 days, as well increased leukocyte infiltration and blood clot at 7 days, and increased bone sequestrum and empty osteocyte lacunae at 21 days (p<0.05). Also, ZA group presented decreased quantity of TGFb+ and Runx-2+ cells at 7 days, and decreased quantity of TRAP+ osteoclasts compared to the control at 21 days (p<0.05). Altogether, these data demonstrate the usefulness of this model to understanding the pathophysiology of MRONJ.
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Affiliation(s)
- Claudia Cristina Biguetti
- Department of Basic Sciences, São Paulo State University (UNESP) - School of Dentistry, Araçatuba, São Paulo, Brazil
- * E-mail:
| | - André Hergesel De Oliva
- Department of Basic Sciences, São Paulo State University (UNESP) - School of Dentistry, Araçatuba, São Paulo, Brazil
| | - Kent Healy
- Department of Diagnostic and Biomedical Sciences, University of Texas Health Science Center at Houston, Houston, Texas, United States of America
| | - Ramez Hassan Mahmoud
- Department of Basic Sciences, São Paulo State University (UNESP) - School of Dentistry, Araçatuba, São Paulo, Brazil
| | | | | | - Edilson Ervolino
- Department of Basic Sciences, São Paulo State University (UNESP) - School of Dentistry, Araçatuba, São Paulo, Brazil
| | | | - Walid D. Fakhouri
- Department of Diagnostic and Biomedical Sciences, University of Texas Health Science Center at Houston, Houston, Texas, United States of America
| | - Mariza Akemi Matsumoto
- Department of Basic Sciences, São Paulo State University (UNESP) - School of Dentistry, Araçatuba, São Paulo, Brazil
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