ANZ journal of surgery · 2020
Utility of an index metacarpal cortical thickness application as an osteoporosis screen in distal radius fracture patients aged over 50.
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Hymer Isobel, Sivakumar Brahman, Bindra Randipsingh, Awal Wasim, Robinson Ann
Аннотация
BACKGROUND: Following wrist fracture, it is desirable to identify patients with osteoporosis. A smartphone-based application (BoneGauge) that uses second metacarpal cortical thickness ratio (2MCP) measured on X-ray has been proposed. This study aims to validate this application using dual-energy X-ray absorptiometry scan in a cohort of patients with distal radius fractures.
METHODS: Thirty subjects aged 50 and over who sustained low-energy fractures of the radius were recruited and measurements were completed by two independent observers using the application.
RESULTS: The interrater reliability as a screening tool was insufficient (κ = 0.61). Using the 2MCP threshold of 60% for detection of osteopaenia or osteoporosis, we found insufficient correlation between the dual-energy X-ray absorptiometry scan and the two sets of readings using the application (κ = 0.28 and 0.35, respectively).
CONCLUSION: On the basis of these results, 2MCP of 60% is not sensitive enough to be used as a screening tool via a smartphone application for assessment of osteoporosis risk.
METHODS: Thirty subjects aged 50 and over who sustained low-energy fractures of the radius were recruited and measurements were completed by two independent observers using the application.
RESULTS: The interrater reliability as a screening tool was insufficient (κ = 0.61). Using the 2MCP threshold of 60% for detection of osteopaenia or osteoporosis, we found insufficient correlation between the dual-energy X-ray absorptiometry scan and the two sets of readings using the application (κ = 0.28 and 0.35, respectively).
CONCLUSION: On the basis of these results, 2MCP of 60% is not sensitive enough to be used as a screening tool via a smartphone application for assessment of osteoporosis risk.