. Modern surgery, general and operative. ure of a muscle is announcedby a sudden and violent pain and by loss of function, arising during powerfulmuscular contraction or strong traction in the long axis of a muscle. Therupture may be announced by a clearly audible snap (A. Pearce Gould). Adistinct gap is felt between the retracted ends of the torn muscle; great paindevelops on movement; there are tenderness, loss of power, and swelling. Rupture of the Biceps Flexor Cubiti or its Tendon 809 Rupture may be followed by atrophy, so may a contusion. Among the muscleswhich occasionally rupture we ma
. Modern surgery, general and operative. ure of a muscle is announcedby a sudden and violent pain and by loss of function, arising during powerfulmuscular contraction or strong traction in the long axis of a muscle. Therupture may be announced by a clearly audible snap (A. Pearce Gould). Adistinct gap is felt between the retracted ends of the torn muscle; great paindevelops on movement; there are tenderness, loss of power, and swelling. Rupture of the Biceps Flexor Cubiti or its Tendon 809 Rupture may be followed by atrophy, so may a contusion. Among the muscleswhich occasionally rupture we may mention the quadriceps, biceps, triceps,deltoid, plantaris, etc. Rupture of the biceps flexor cubiti or its tendon is not very common; 72cases have been collected by W. W. Keen, (Annals of Surgery, May, 1905).Alexander collected 74. cases and added 8 (Annals of Surgery, 1915, Ixi).It is much more common in men than in women. Looss table of 66 casescontains records of only 2 women (Doane, in Jour. Amer. Med. Assoc, May .iif«f»^i^<. Fig. 510.—Authors case of rupture of the long head of the biceps. 16, 1908), The rupture may be where the muscular belly passes into the lowertendon, through the muscular belly, in the muscular part passing either to thelong or short head, or at the part where the muscular belly joins the long orshort head. The tendon of the long head may be torn through or the longhead may be torn from the glenoid cavity. The muscular portion is far moreoften injured than the tendinous. In rupture of the muscle belly a part of themuscle, in rupture of the long head the entire muscle, becomes soft and relaxed.
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