‘Open up reduction’ is surgery to realign the bone fracture into the normal posture, when ‘interior fixation refers to the metal rods, screws, or plates used to maintain the bone fracture steady so as to recover the appropriate way and to help avoid infection. The pictures or other 3rd party https://www.theorthopaedicandpainpractice.com/subtrochanteric-fractures-what-is-it/