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Abductor digit minimi opponensplasty: technique, modifications, and measurement of opposition
Carolien P de Roode1, Michelle A James, H Relton McCarroll
1Shriner's Hospital for Children Northern California, Davis, CA, USA.
Abstract:
The abductor digiti minimi is one of several muscles described as transfers for restoration of thumb opposition, a critically important function. This operation, also known as the Huber opponensplasty, is most commonly used for reconstruction of opposition in children with type 2 or 3a thumb deficiency, when it is often combined with Z-plasty of the thumb-index web space and metacarpophalangeal ulnar collateral ligament reconstruction. In our experience this operation reliably improves thumb opposition for children with this thumb deficiency.

