Pulling power line with company truck, line became twisted. EE stepped over line to untwist it, power line recoiled & struck EE in right foot area causing them to fall on right shoulder. Shoulder dislocated, EE corrected dislocation. Treatment by EMT-minor pain, medical dept 8/12, co. dr ordered MRI. Results pending until ortho dr. appt on 9/11. Ordered PT & issued restrictions.