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 . Fracture above condyles of humerus.(Stimson. ) Normal angle of bonesofforearm. (Allis.) Outward deflection ofnormal forearm. (Stim-son.) limits of the joint ; hence, the articular motions are unimpaired unlessby spasni or fear of pain. Downward and forward displacement ofthe fragment occurs when its fascial envelope is sufficiently disturbedto permit the influence of muscular traction. Simultaneous injuryto the ulnar nerve lying
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 . Fracture above condyles of humerus.(Stimson. ) Normal angle of bonesofforearm. (Allis.) Outward deflection ofnormal forearm. (Stim-son.) limits of the joint ; hence, the articular motions are unimpaired unlessby spasni or fear of pain. Downward and forward displacement ofthe fragment occurs when its fascial envelope is sufficiently disturbedto permit the influence of muscular traction. Simultaneous injuryto the ulnar nerve lying in the groove behind the epicondyle is pos-sible. Abnormal mobility and crepitation are easily detected by grasp-ing the tubercle in the fingers. FRACTURES OF THE HUMERUS. 427 Fractures separating either of the condyles from the shaft necessarilyinvolve the joint, and hence are very important injuries. Such frac-tures are common. The essential components of the elbow hinge arethe ulna and the articular surface of the internal condyle. Hence,fractures of the inner condyle are especially dangerous to the future in- Fig.
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