– Discussion: – see acetabular component, reestablishment of acetabular floor, and component position; – see: preoperative and post operative radiographic eval – femoral offset is measured from the distance between the center of the femoral head and a line drawn down center of femoral shaft; – note that increasing … Read more
– See: – Zone I injuries – Zone II injuries – Zone III injuries – Zone IV and Zone V: – Discussion: – FDS serves as an isolated activator of middle phalanx; – function is determined by holding adjacent … Read more
– Anesthesia: – skeletal traction can be applied under sedation & local anesthesia; – Distal Femoral Pins: – inserted on medial side to avoid injury to femoral artery on pin exist; – flex the knee and thigh on several folded sheets inorder to facilitate pin insertion from the … Read more
– Discussion: – perform arteriography for any projectile that passes thru anteromedial quadrant of the thigh; – because of the size of common femoral artery, the femoral arteriogram is the easiest to obtain; – when placing the Cournand needle in common femoral artery in groin, placement into a tributary must be avoided; … Read more
– Discussion: – two fat planes on lateral view & 5 fat planes on PA view are useful for analysis; – deep fat pad of pronator quadratus (lateral view), which lies between the pronator quadratus muscle and the flexor tendon sheaths, normally forms a slight ventral concave line and is convexly bowed in a ventral … Read more
– See: Phalangeal Injury – Mechanism: – results from forceful hyperextension of DIP joint w/ FDP in maximal contraction; – classic examples include pts injured by the sudden jerk of a rope, such as starting a lawnmower or retraining an animal; – tendon may rupture directly from its insertion into bone, or it … Read more
– See: Metacarpal Extra-articular Base Frx – Discussion: – oblique and comminuted frx predispose to shortening and malrotation; – displacing forces: – these frxs are displaced by tendons inserting into each fragment; – distal metacarpal fragment is flexed into … Read more
Discussion superior dislocation of the lens & retinal detachment; diagnosed at or shortly after birth; myopia is often present and may be severe; retinal detachment can occur in association w/ severe myopia, leading to partial or complete blindness
– See: orthofix fixator – Discussion: – convential “bridging” external fixation relies on ligamentotaxis to apply traction & restore displacement; – indications: – active pts when radial length is decr by > 3-4 mm; – presence of dorsal comminution; – when closed reduction fails to restore anatomic palmar tilt; – for any unstable or intra-articular … Read more
– See: – Over Distraction of Wrist Joint – Palmar Tilt Reduction – Radial Inclination Reduction – Wrist Position: – wrist is placed in neutral to slight extension w/ care taken not to over distraction the hand; – over distraction is related … Read more