. Plexus. just as our hands look blue orpurple when they are cold. And if you should take hold of theseextremities you should notice that the weak one feels decidedlycolder than the other. That is a complaint that the parents oftenmake, that the affected leg is always cold. Now the deformitiesthat result from these paralyses are due to two factors: the lossof power in the paralyzed muscles, and contraction of the oppos-ing muscles. I can demonstrate that in the case of the little girlhere. You see she is unable to flex the toes, or the foot on theankle, and the foot hangs down and the toes dra
. Plexus. just as our hands look blue orpurple when they are cold. And if you should take hold of theseextremities you should notice that the weak one feels decidedlycolder than the other. That is a complaint that the parents oftenmake, that the affected leg is always cold. Now the deformitiesthat result from these paralyses are due to two factors: the lossof power in the paralyzed muscles, and contraction of the oppos-ing muscles. I can demonstrate that in the case of the little girlhere. You see she is unable to flex the toes, or the foot on theankle, and the foot hangs down and the toes drag in walkingâwhat is called a toe drop. If we hold the leg and try to forc-ibly flex the foot we find, as you see, that the foot cannot be 98 The Plexus. brought up to a right angle by all the force I can apply wrtfr myhands. In the case of the little boy it is not so marked. Thefoot can easily be brought up but not as far as the normal*onecan. You notice another curious thing in the case of tke. boyâ. FlG. 1. Showing- atrophy of the leg, complete loss of dorsarflexion and beginning talipes-equinus due to While he was unable to flex any of the other toes he can flex the big toe. Why is that? Because, you remember, the big toe is dorso flexed by the extensor proprius pollicis muscle, and it has escaped, while all the rest of the toes are the exten- Deformities of Infantile Paralysis. 99
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