Palmaris longus--a muscle with multiple uses in leprosy-affected hands.

The present paper reviews the anatomy of palmaris longus muscle and also the situations where palmaris longus muscle has been used as an independent motor or as a donor of tendon graft material. Its relevance in leprosy-affected hands is also discussed because the muscle is usually spared in hand palsies consequent to leprotic neural damage. The advantages and disadvantages of its use in different operative procedures have been analyzed. The author's experience with this muscle in the correction of hand deformities in leprosy is described.