A system of surgery . e fore-arm should be kept flexed at an acute anglefor about three weeks, to allow of the union of the ligamentsand prevent the biceps tendon from pulling the head of the radiusforwards. This is best effected by moulding a leather or gutta-percha splint to the back of the arm and fore-arm. Difficulty maybe experienced in reducing this dislocation, from the interposition ofthe torn orbicular ligament between the head of the radius and thecondyle. Symptoms of the dislocation backwards.—Here the fore-arm isslightly flexed and held midway between supination and pronation, DISL
A system of surgery . e fore-arm should be kept flexed at an acute anglefor about three weeks, to allow of the union of the ligamentsand prevent the biceps tendon from pulling the head of the radiusforwards. This is best effected by moulding a leather or gutta-percha splint to the back of the arm and fore-arm. Difficulty maybe experienced in reducing this dislocation, from the interposition ofthe torn orbicular ligament between the head of the radius and thecondyle. Symptoms of the dislocation backwards.—Here the fore-arm isslightly flexed and held midway between supination and pronation, DISLOCATIONS OF THE ELBOW. 987 the action of the biceps being interfered with. The head of thebone can be felt rolling behind the external condyle. Extensionis arrested by the radius being brought up against the back of thehumerus. Treatment of the dislocation backwards.—Difference of opinionexists regarding the manipulations necessary to reduce this authorities advise extension and counter-extension, with. Fig. 397.—A, Dislocation of the Head of the Radius forwards; b, Dislocation of the Head ofthe Radius backwards. direct pressure upon the head of the displaced bone, and thiswould seem to be generally efficacious. Afterwards, the limbshould be put up in the flexed position, or it has been advisedthat the fore-arm be kept extended, to allow the tense biceps topull the radius forwards. Should fracture of the external condylecomplicate these injuries, the parts must be carefully padded, andgreat care and gentleness exerted in the earlier trials of passivemovement. Dislocation of the head of the radius outwards.—It is well tolook upon these displacements as really modifications of the forwardsor backwards dislocations. Thus the head of the radius may bethrown outwards and forwards, or outwards and backwards. Thediagnosis and treatment require no special remarks. 988 DISLOCATIONS. Emplacement of the head of the radius downwards,subluxation of the head of the radius
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