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A 2-year-old child is referred by her pediatrician for fixed flexion deformity of the left thumb. She has been wearing a splint for the last 6 months. She has ventricular septal defect and left renal agenesis. The interphalangeal joint does not extend past 40 degrees of flexion as seen in Figures A and B. There is no triggering. There is a firm, nontender nodule overlying the metacarpophalangeal joint as outlined in blue in Figure C. What is the diagnosis and most appropriate treatment?
Thumb camptodactyly. Therapy including passive stretching exercises.
Congenital clapsed thumb. Percutaneous release of the A1 pulley.
Pediatric trigger thumb. Open release of the A1 pulley.
Pediatric trigger thumb. Open release of the A1 pulley and resection of the tendon nodule.
Blauth Type I hypoplastic thumb. Open release of the A1 pulley and volar plate, and resection of the tendon nodule.
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A 6-year-old child has a fixed flexion deformity of the interphalangeal (IP) joint of the right thumb. The thumb is morphologically normal, with a nontender palpable nodule at the base of the metacarpophalangeal joint. Clinical photographs are shown in Figures 42a and 42b. Based on these findings, what is the treatment of choice?
Complete release of the proximal annular pulley of the flexor sheath
Removal of the nodule in the flexor pollicis longus
Fractional lengthening of the flexor pollicis longus tendon at the musculotendinous junction
Steroid injection into the palpable nodule
No treatment because this condition normally spontaneously resolves