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Hand & Upper Limb
intermediate
X-Type

Trigger Thumb

Pediatric Hand Conditions

The mother of a 2-year-old girl notices that her daughter's right thumb is always held bent and cannot be straightened. There is no pain, and the child does not seem bothered. On examination, there is a palpable nodule at the base of the thumb on the palmar side, and the interphalangeal joint is fixed in approximately 30 degrees of flexion. Regarding pediatric trigger thumb:

Mark each as TRUE or FALSE

A

Pediatric trigger thumb is caused by a size mismatch between the flexor pollicis longus (FPL) tendon...

B

The condition typically presents between 1-3 years of age; it is bilateral in approximately 25-30% o...

C

Pediatric trigger thumb is identical to adult trigger finger in etiology and always resolves spontan...

D

Clinical examination reveals: a palpable nodule (Notta's node) at the MCP joint level on the palmar ...

E

Natural history is variable; spontaneous resolution occurs in approximately 30% of cases by age 3-4 ...

Answer the questions to see explanations

Click T (True) or F (False) for each option