A manual of modern surgery : an exposition of the accepted doctrines and approved operative procedures of the present time, for the use of students and practitioners . has beenreduced the symptoms at once disappear. Forwakd Dislocations.—Displacement of the head forwards is thecommon form. The capsule is torn between the subscapular muscle and the Ion 2; head of the tri-ceps. The head may lie inthe axilla close to the lowerand anterior edge of the glen-oid cavity; but usually, be-cause of secondary displace-ment due to the tension ofthe muscles, it is drawn up-ward beneath the coracoidprocess.
A manual of modern surgery : an exposition of the accepted doctrines and approved operative procedures of the present time, for the use of students and practitioners . has beenreduced the symptoms at once disappear. Forwakd Dislocations.—Displacement of the head forwards is thecommon form. The capsule is torn between the subscapular muscle and the Ion 2; head of the tri-ceps. The head may lie inthe axilla close to the lowerand anterior edge of the glen-oid cavity; but usually, be-cause of secondary displace-ment due to the tension ofthe muscles, it is drawn up-ward beneath the coracoidprocess. This tension of themuscles may be sufficient to\ draw it to the inner side of\ the coracoid process and upunder the clavicle. The sub-coraeoid variety is the mostubcora- common of all forms of dis-location at the shoulder of the surgical neck of the humerus, severe laceration ofthe muscles and damage to the vessels and nerves in the axilla mayoccur as complications. Injury to the circumflex nerve which suppliesthe posterior part of the deltoid muscle is probably the most commoncomplicating lesion. When the head remains in the axilla, compres-. Osteoma of upper end of humerus resemblin coid dislocation of humerus. Authors case 534: INJURIES OF JOINTS, CARTILAGES AND LIGAMENTS. sion of the vessels and nerves is not unusual. In the subcoracoid andthe axillary varieties the arm is lengthened. In the subclavicularform it is shortened. The arm is abducted and the hand cannot be Fig. 292. Fig. 293.
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