1046 



DISEASES OF THE FOOT. 



Fig. 557. — To illustrate the superficial structures 

 involved in surgical injuries of the foot. The 

 outer lateral cartilage and the tissues covering 

 the lower surface of the pedal bone (sensitive 

 frog and sensitive sole) have been removed. 

 a, Plantar cushion , a', bulbar portion of 

 plantar cushion ; a", cleft of the frog in 

 which rests the " frog stay " ; b, origin of the 

 so-called " suspensory ligament of the bulbs " ; 

 b', small elastic band passing towards the 

 lateral cartilage ; c, elastic band arising from 

 lateral cartilage and becoming inserted into 

 pastern bone — it unites with b ; d, small 

 tendon which arises from the skin and be- 

 comes attached, in common with 6 and c, to 

 the pastern bone ; e, fibro-elastic supporting 

 sheath of flexor pedis perforans ; /, fibro-elastic 

 supporting sheath of flexor pedis perforatus ; 

 g, flexor pedis perforatus tendon ; h,' flexor pedis 

 perforans tendon ; i, suspensory ligament ; 

 k, lower surface of pedal bone, to which the 

 flexor pedis perforans tendon is attached. 



Fig. 558.— To illustrate the 

 deeper-seated structures in- 

 volved in surgical injuries of 

 the foot. Right fore foot 

 seen from behind and slightly 

 from one side, a, Flexor 

 pedis perforatus tendon; 6, 

 two limbs formed by its 

 bifurcation ; c, flexor pedis 

 perforans tendon ; d, fibrous 

 reinforcing band of great 

 sesamoid sheath ; d', fibrous 

 supporting sheath inserted 

 into suffraginis bone by four 

 heads ; d", upper insertions 

 (the lower not visible in 

 figure) ; e, fibro-elastic plate 

 covering the lower surface of 

 flexor pedis perforans and in- 

 serted into suffraginis bone 

 at e' ; /, suspensory liga- 

 ment. 



