1Mazur JM,Schwartz E,Simon SR.Ankle arthrodesis:Long termfollow up with gait analysis[J].J Bone Joint Surg(Am),1979,64(7):964-975.
2Cordey J.Rahn BA,Perren SM human Torque Control in the use of Bone Screws.In:Uhthoff HK,editor.Current Concepts of Internal Fix ation of Fractures[J].Berlin Heidelberg New York:Springer-Verlag,1980,235-243.
