RESUMEN
[Objective]To investigate the biomechanical effect of mid-upper fibular fracture on ankle joint.[Method]From January 2005 to June 2006,20 cases of mid-upper fibular fracture were collected.Normal anterior film of bilateral ankle joint was photographed,ankle mortise width and distal fibula upper shift were measured to observe the effect on stability of ankle joint.Foot-scan pressure analyzer was used to detect the central track of footplate pressue,subtalar joint angle,in order to compare the difference between normal ankle and the sick.[Result]Dislocated mid-upper fibular fracture could lead to ankle mortise widening,lateral malleolus up shift ( averaged,1.260?0.339mm,1.045?0.276mm).the central track of footplate pressure offset and the fracture sides subtalar joint angle were larger than those in normal feet(P