Bone Plates
Bone tissue, unlike most of the body's tissues, has the remarkable ability to regenerate itself. If a fractured bone can be held together it can regenerate the tissue and regain most of its original strength. For severe fractures, bone plates are surgically implanted to hold the bone in place. (Illustration1) When designing bone plates design, material selection, and biocompatibility are the three important considerations. The bone plate must be strong enough to support the load normally placed on the bone while the bone heals. The plate must also have a stiffness similar to that of the bone to which it is attached. The implant must be non-toxic and cannot cause an inflammatory response in the body. The stiffness of the bone plate is important because the stress shielding will increase with the difference in stiffness. Stress shielding is the phenomenon in which the implant bears most of the load normally placed on the bone. Although this is favorable while the bone is weak, as the bone heals and regains strength, if the bone plate does not allow the bone to carry an increasing load, there will be a reduction of bone mass and final regained strength. From the beginning of their use, material selection was the limiting factor to their success. As technology advanced so did the materials...
Bone Density Tests and Calcium Supplements Prevents Osteoporosis: 
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