A medical instrument for spreading tissue includes a main body portion and upper and lower arms coupled to the main body portion. One of the arms is a translatable first arm that translates relative to the main body portion. Upper and lower fingers are coupled to the upper and lower arms, respectively, for engaging and spreading the tissue upon movement of one of the fingers. A translating mechanism adjusts to translate the translatable first arm along the main body portion between a primary position adjacent the other of the arms, referred to as a second arm, and a secondary position spaced from the primary position. An adjustment member engages a lever portion extending from the second arm and causes movement of the lever portion towards and away from the main body portion to adjust an angle between the fingers.
