Lab-grown bone to heal broken limbs

LONDON: An artificial bone is all set to plug the gap, the next time you have a serious fracture. Scientists have for the first time created artificial bones using stem cells and a new lightweight plastic that can soon be used to heal shattered limbs.

The use of bone stem cells combined with a degradable rigid material that inserts into broken bones and encourages real bone to re-grow has been developed at the Universities of Edinburgh and Southampton.

Researchers have developed the material with a honeycomb scaffold structure that allows blood to flow through it, enabling stem cells from the patient's bone marrow to attach to the material and grow new bone. Scientists say, over time, the plastic slowly degrades as the implant is replaced by newly grown bone.

Scientists developed the material by blending three types of plastics.

They used a pioneering technique to blend and test hundreds of combinations of plastics, to identify a blend that was "robust, lightweight, and able to support bone stem cells."

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