[Pinching of the single sesamoid bone of the thumb into the metacarpo-phalangeal joint without luxation]. / A hüvelykujj egyetlen sesam-csontjának ficamodás nélküli becsípödése az alapízületbe.

Authors demonstrate the extremely rare case of articular pinching of the single and not well-developed sesam bone at the metacarpophalangeal joint on over extension without luxation and associated injuries. After reviewing the history and pathology it is described that this alteration can be treated with voluntary muscle function and without operation too.