中国P站

Abstract

When surgically repairing an ankle fracture one goal is to restore the stability of the ankle joint. The osseous  injury that occurs during an ankle fracture can be accompanied by a ligamentous injury, specifically to the deltoid  ligament complex. The purpose of this study is to evaluate measuring the contact area of the ankle joint with different  stabilization medial methods of a bio malleolar equivalent ankle fracture. Methods: Five frozen cadavers were utilized  for this study. The cadavers were thawed prior to the testing and was dissected to expose the ankle joint with care  to preserve the ligamentous structures, fibula, and tibia. Super-low contact film was cut to match each of the unique  anatomic characteristics of the talus. The film was carefully placed and secured within the ankle joint. An axial load of  100 psi was applied to each ankle under 4 conditions: (1) Normal ankle, (2) transected deltoid ligament off the medial  malleolus, (3) transected deltoid ligament off the medial malleolus with a syndesmotic screw through a plate, and (4)  direct repair of the deltoid ligament. The ankle joint contact area was tested in the 4 conditions and analyzed. The  results found that there was no significant difference between the deltoid ligament repair group and the syndesmotic  screw fixation group when comparing joint contact characteristics.