MEDIAN NEURECTOMY 



147 



the brachial vein, V, is visible, the latter being intimately 

 connected with the nerve sheath. The vein lies mostly be- 

 hind and beneath the nerve and may project out from be- 

 neath the border of the same. The operator needs to be care- 

 ful not to prick this vein with the tejiacula, as the hemorrhage 



FIG. 54 

 Median Nenrectomy 



Median surface of the right humero-radial articulation, a. Brachial 

 arterv ; n, median nerve ; v, brachial vein ; f, antibrachial fascia ; 

 p, sterno-apoueuroticus muscle. 



therefrom is exceedingly annoying diiring the operation. 

 Avoid the use of tenacula after petietrating the fascia and re- 

 tract the wound lips cantiojisly with aneurism needles instead. 

 Still further forward and deeper may be felt the pulsating 

 brachial artery. Incise the nerve sheath carefully and 

 divide it upward and downward with the scalpel or scissors, 



