Yes: A broken thumb( metacarpal or proximal / distal phalanx) will cause pain and occ. Deformity but it does not impede flexion of the digit. The flexor pollicus longus is still functioning normally as are the thenar muscles.Sometimes a broken thumb will cause enough pain that the patient avoids flexion... But the fpl and thenar muscles are still working. Hope that helps!
Answered 11/18/2013
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