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The parents of a newly adopted 3-year-old boy bring the child to the office for evaluation of his thumb. A clinical photograph is provided in figure A. Which of the following is the most important factor in determining thumb reconstruction versus ablation and pollicization?
Stability of the carpometacarpal joint
Functional ROM of the wrist
Functional ROM of the index, middle, ring, and small fingers
Skin contracture of the first web space
Absence of a thumb interphalangeal joint
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What is the most important variable when deciding between reconstruction versus ablation of a hypoplastic thumb?
contralateral thumb function
thenar muscle function
presence of an extensor pollicis longus tendon
carpometacarpal joint stability
metacarpophalangeal joint stability
Using the Blauth classification of thumb hypoplasia, grade IIIA can be treated with thumb reconstruction whereas grade IIIB is treated with thumb amputation & pollicization. What is the key difference between these two grades?
Presence of complete osseous structures
Presence of intact musculotendinous structures
Carpometacarpal joint stability
Metacarpophalangeal joint stability
Presence of an extensor pollicis longus tendon