Dislocations of the Lower Limh. 197 



DISLOCATION OF THE KNEE. 



5. 18. Partial Outward Dislocation of the Knee.— Plaster 



cast of a right knee, showing the above. 



The skin Avas drawn very tightly over the inner condyle, 

 and would have sloughed had reduction not been eflfected. The 

 tibia and fibula have been displaced outwards and back-\vards. 



G. C. 3112. 

 Fresented by Alexis Thomson, F.R.C.S.E. 



5. 19. Compound Dislocation of the Knee. — Plaster cast of a 



right knee, showing the above. 



The ligament was torn, and the skin on the inner side 

 ruptured so as to expose the interior of the knee-joint. The 

 tibia and fibula have been displaced inwards and backwards. 



5. 20. Partial Outward Dislocation of the Tibia and 



Fibula. — Glue and glycerine cast of a left knee, showing the 

 above. 



Four years before, the patient, a young man, then aged 20, had 

 struck his knee in trying to jump into a cart. Several ineffectual attempts 

 had been made to reduce the defoi'mity. The joint subsequently became 

 affected with tubercular disease, and shortly after the cast was taken 

 the joint was successfully excised by Mr A. G. Culter. (See Series 7.) 



The cast shows a slight outward dislocation of the tibia, 

 but the relation of the parts was masked by swelling of the 

 synovial membrane. G. C. 2891. 



Presented hy Charles W. Cathcakt, F.R.C.S.E. 



DISLOCATION OF THE FOOT. 



5. 21. Compound Sub-astragraloid Dislocation.— Right foot 



and lower part of leg, muscles and tendons dissected, to illustrate 

 the above — in spirit. 



Amputation was performed through the leg. 



