Ganga Medical Centre & Hospitals Pvt Ltd

Coimbatore, India.

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Creation of the Thumb Pollicization

Thumb is an important part of the hand and is useful in activities of pinch, grasp and power grip. Reconstruction of the thumb is one of the challenges of hand surgery. Children may be born without a thumb (thumb aplasia) , a thumb like structure being attached to the hand by a fringe of soft tissue (floating thumb), or a small thumb may be attached to the hand, but the bony attachment is so underdeveloped that the structure cannot be made stable and strong to do the activities of the thumb.


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For such children, the surgery suggested is Pollicisation. Pollicisation means creation of the thumb by transferring a finger from its position to the position of the thumb. We have been consistently performing this procedure for well over two decades. Usually the index finger is transferred to the position of the thumb. With the new thumb and three fingers the hand is functionally more competent than a hand with four fingers and no thumb. Aesthetically also it is very well accepted by the parents. Children learn to use the newly created thumb. Apart from reducing the length of the finger to make it into the thumb, it also involves complex rebalancing of the muscles acting upon the finger so that the thumb can function well in its new position.



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