66 ABNORMAL CONDITIONS OF THE KNEE-JOINT. 
Fig. 5. 
Same as fig. 4, the soft parts removed. 
1, right femur displaced forwards; 2, tibia back- 
wards; 3, rough scabrous surface of tibia; 4, 
line of junction of the epiphysis. 
Partial displacement 
of femur inwards ; 
wards, 
Fig. 7. 
Left knee-joint. 
patel, and consequently gradually draws th 
ne outwards completely over the outer 
of the trochlea of the femur. We have si 
at the Richmond Hospital two similar ¢ 
this very curious result of necrosis of the t 
In these examples the knee-joint had p 
pated in the inflammation of the conti 
structure, and great deformity of bon ho 
was the consequence (fig. 7). 
one of these cases (Christopher Bec at. 
died of erysipelas, which was 
had no connexion with the deformity. Thek 
joint was examined, and the was fc 
dislocated outwards, and anchylosed to the o: 
surface of the external condyle of the fi 
(fig. 8.) The superior extremity of thet 
partially displaced backwards, and was gre 
deformed and enlarged, particularly the. 
condyle of this bone, the anterior half of. 
was deeply excavated to receive the condy! 
the femur; the posterior half of this cone 
was free and had no bone in contact wi 
but this portion of the tibia and the head 
fibula were so much rotated or twisted © 
wards and backwards as to form a v; 
cuous elevation in the lower part of the p 
teal space. The fibula was placed ¢ 
behind the tibia. The lateral ligament did 1 
exist. The ligamentum patelle was gre 
