. Text-book of operative surgery . iceps, it isnecessarily divided, with the resultthat the anconeus atrophies. Asit is our special duty in the caseof the elbow to obtain an activelymovable Joint, the function of theanconeus ought to be preserved, asit serves to Stretch and fix thecapsule of the Joint. We attain this by the following method of Operation : — With the elbow flexed to an angle of about 150°, an angular incision (Fig. 176) is, like Olliers incision, begun at the external supracondyloid ridge 3 to 5 cm. (li to 2 in.) above the line of the Joint, and is carried downwards practically
. Text-book of operative surgery . iceps, it isnecessarily divided, with the resultthat the anconeus atrophies. Asit is our special duty in the caseof the elbow to obtain an activelymovable Joint, the function of theanconeus ought to be preserved, asit serves to Stretch and fix thecapsule of the Joint. We attain this by the following method of Operation : — With the elbow flexed to an angle of about 150°, an angular incision (Fig. 176) is, like Olliers incision, begun at the external supracondyloid ridge 3 to 5 cm. (li to 2 in.) above the line of the Joint, and is carried downwards practically jmrallel to theaxis of the humerus, vertically doAvnwards to the head of the radius, and fromthence along the outer border of the anconeus to the posterior border of the ulna, 3 inches below the tip of the olecranon; finally, the incision terminates by curvinginwards over the inner surface of the ulna. The first part of the incision extendsdown to the outer border and external condyle of the humerus, between the supinator. Ext. carpi ulnaris in. Ext. carp. rad. brev. in. Ext. comm. digit. m. Flex. carpi ulnaris m. Ext. ossis metacarp. pollicis m. Ext. priin. iiiternod. pollicis in. Styloid proc. of ~^^Ext. secund. internod. pollicis m. Fig. 176.—Arthrotomy of the elbow and wrist. 315
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