1. It is used for MP hyperextension when there are significant joint changes at the CMC joint with an Adducted prehension pattern

2. N Apprehension The act of seizing or taking hold of; prehension: as, the hand is the organ of Apprehension.; n Apprehension The act of arresting or seizing by legal process; arrest; seizure: as, the thief, after his Apprehension, escaped.; n Apprehension A laying hold by the mind; mental grasp; the act or faculty of perceiving anything by the senses;; n Apprehension of learning or becoming