Abstract
Background: Thumb hypoplasia is a congenital underdevelopment
of the thumb, accounting for 5% to 15% of congenital hand disorders.
It occurs equally among both genders and can affect both thumbs. The
condition is categorized using Blauth’s classification with type I being
the mildest form.
Case Presentation: We report a 23-year-old Syrian male
presented with a bilateral restriction in opposition movement when using
a pen or razor. Clinical examination and x-ray imaging revealed a
bilateral type I hypoplastic thumb with bilateral minimal hypoplasia of
the toes. Despite the surgical treatment options available, the patient
opted not to undergo surgery due to his adaptation to his condition.
Conclusion: Hypoplastic thumb type I is a congenital condition
characterized by underdevelopment of the thumb. Bilateral thumb
hypoplasia with toes hypoplasia is extremely rare. A full systemic
evaluation should be done due to its associations with other syndromic
manifestations and treatment options are discussed concerning the best
functional outcomes and patient preferences.