Type I (Supple clasped thumb)
Thumb can be passively abducted and extended against resistance of thumb flexors. No other digital anomaly present.
Type II (Clasped thumb with contracture)
Type III (Rigid clasped thumb)
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A 8-month-old male presents with the hand deformity seen in Figure A. Examination reveals restrictions in passive extension and abduction of the thumb. His mother tells you that her other two children had similar deformities that required operative management. What would you offer as the first-line treatment option for this child's deformity?
Serial splinting of thumb
Thumb-index finger web space reconstruction
Thenar muscle tendon transfer
First metacarpophalangeal joint arthrodesis
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