Despite the importance of vertebral compression fractures, there is much that remains uncertain. There is no "gold standard" for the definition which has led to epidemiologic and study differences. Height loss is a way to suspect vertebral fractures but it has its own issues. There are multiple radiographic systems for defining vertebral fractures, both prevalent and incident; risk factors for prevalent fractures have already been delineated. Recent studies have elucidated the risk factors for incident vertebral fractures including age, low weight, late menarche, lower bone mineral density, history of vertebral and nonvertebral fractures, smoking, and use of a walking aid. Fan beam densitometers have had improving ability to image the spine, a procedure now known as vertebral fracture assessment (VFA). Recently (in the United States) a CPT code and reimbursement was established. Yet, many vertebral fractures go undiagnosed, diagnosed but unreported, or reported but not utilized in patient care. Because of this, the International Osteoporosis Foundation developed a Vertebral Fracture Initiative for radiologists and the International Society for Clinical Densitometry began a VFA course. Both teaching programs use the semi-quantitative assessment of Genant to aid the radiologists and clinicians in detecting vertebral fractures.
Clinical decision rules (CDRs) are designed to help physicians practice better. A number of CDRs to assist in identifying women with low bone mass have been developed since the mid 1990s, including SCORE, OST (OSTA), OSIRIS, SOFSURF, NOF, ABONE, pBW, ORAI, and weight-only-EPIDOS (which we have termed WO-E). This review discusses these CDRs in terms of development and validation cohorts and their sensitivity and specificity. The sensitivities of the available CDRs exceed 80% and specificities are about 50%. After much analysis, it appears that most experts prefer OST for its simplicity and SCORE for its flexibility, but there is no consensus on what risk factors to use in the CDRs and what regions of interest (spine, total hip, femoral neck, or a combination) to test with dual-energy x-ray absorptiometry (DXA). Because of the lack of consensus, there are barriers to the clinical application of these CDRs. Agreement on a single CDR for worldwide use is required to optimally fulfill the objective of identifying low bone mass.
Despite the importance of vertebral compression fractures, there is much that remains uncertain. There is no "gold standard" for the definition which has led to epidemiologic and study differences. Height loss is a way to suspect vertebral fractures but it has its own issues. There are multiple radiographic systems for defining vertebral fractures, both prevalent and incident; risk factors for prevalent fractures have already been delineated. Recent studies have elucidated the risk factors for incident vertebral fractures including age, low weight, late menarche, lower bone mineral density, history of vertebral and nonvertebral fractures, smoking, and use of a walking aid. Fan beam densitometers have had improving ability to image the spine, a procedure now known as vertebral fracture assessment (VFA). Recently (in the United States) a CPT code and reimbursement was established. Yet, many vertebral fractures go undiagnosed, diagnosed but unreported, or reported but not utilized in patient care. Because of this, the International Osteoporosis Foundation developed a Vertebral Fracture Initiative for radiologists and the International Society for Clinical Densitometry began a VFA course. Both teaching programs use the semi-quantitative assessment of Genant to aid the radiologists and clinicians in detecting vertebral fractures.
Clinical decision rules (CDRs) are designed to help physicians practice better. A number of CDRs to assist in identifying women with low bone mass have been developed since the mid 1990s, including SCORE, OST (OSTA), OSIRIS, SOFSURF, NOF, ABONE, pBW, ORAI, and weight-only-EPIDOS (which we have termed WO-E). This review discusses these CDRs in terms of development and validation cohorts and their sensitivity and specificity. The sensitivities of the available CDRs exceed 80% and specificities are about 50%. After much analysis, it appears that most experts prefer OST for its simplicity and SCORE for its flexibility, but there is no consensus on what risk factors to use in the CDRs and what regions of interest (spine, total hip, femoral neck, or a combination) to test with dual-energy x-ray absorptiometry (DXA). Because of the lack of consensus, there are barriers to the clinical application of these CDRs. Agreement on a single CDR for worldwide use is required to optimally fulfill the objective of identifying low bone mass.
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