The windblown hand: correction of the complex clasped thumb deformity
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Updated: Aug 19, 2026

Estimation of Contact Regions Between Hands and Objects During Human Multi-Digit Grasping
Published on: April 21, 2023
1University of California, San Francisco.
Abstract:
The complex clasped thumb deformity associated with a windblown hand requires correction of three distinct deficits: an adduction contracture of the thumb-index web space, a flexion-volar subluxation contracture of the thumb metacarpophalangeal joint, and severe hypoplasia of the superficial thenar muscles. Severe contractures of the thumb web space are best released by an extensive soft-tissue release and skin coverage with a large, dorsal ration-advancement flap. The thumb metacarpophalangeal joint flexion contracture is corrected by an extensive soft-tissue release, often accompanied by metacarpophalangeal joint fusion. An opponensplasty substitutes for the lack of thenar muscle. Correction of all of the deficits is required to achieve good thumb function.
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