Bone Marrow Fat May Indicate Bone Weakening

Measuring bone marrow fat (BMF) along with bone mineral density (BMD) can better predict weakening of bones than either test done alone, a new study indicates. BMD measurement with DEXA is presently the most commonly used parameter for determining bone weakening. Researchers have long questioned whether there may be other measurable bone components that influence mechanical stability of bone.
http://www.sciencedaily.com/releases/2004/12/041208084143.htm