This is an interesting question. To my knowledge, there are no fracture prediction models based only on forearm bone density values so my response is my opinion and not evidence-based. Firstly, we always rule out hyperparathyroidism when there is forearm bone discordance compared to spine and hips s...

One of the problems with using forearm DXA for dx is that clinical studies with anti-fracture interventions have only used hip and spine BMD measurements as inclusion criteria, so there is no evidence of anti-fracture efficacy in patients based on forearm DXA.