The intrinsic plus position is otherwise known as the safe position for hand splinting. The hand can be immobilized in this position for long periods of time without developing as much stiffness as would occur if the digits were positioned differently. In the intrinsic plus position, the metacarpophalangeal (MP) joints are flexed at 60-70°, the interphalangeal (IP) joints are fully extended. The wrist is held in extension at about 10°. http://emedicine.medscape.com/article/1243815-overview#1
