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. A practical treatise on fractures and dislocations. yle; pain is felt on press-ing the broken condyle against the shaft, inward, upward, or forward;also on pressure with the tip of the finger on the ridge close above theepicondyle. Abnormal mobility appears as adduction of the forearm(also painful), with less or no abduction, and can sometimes be recog-nized by grasping the fragment between the thumb and finger andmoving it backward and forward while the shaft is firmly held ; crepi-tus may be perceived at the same time. If the fragment is notably Experimental fracture of external b
. A practical treatise on fractures and dislocations. yle; pain is felt on press-ing the broken condyle against the shaft, inward, upward, or forward;also on pressure with the tip of the finger on the ridge close above theepicondyle. Abnormal mobility appears as adduction of the forearm(also painful), with less or no abduction, and can sometimes be recog-nized by grasping the fragment between the thumb and finger andmoving it backward and forward while the shaft is firmly held ; crepi-tus may be perceived at the same time. If the fragment is notably Experimental fracture of external by a blow on the palm of thehand, elbow flexed at right angle. FRACTURES OF THE HUMERUS. 255 displaced the irregularity may be recognized by palpation; and if theiiliiu is tit the same time dislocated backward from the trochlea the con-dition is recognized by noting the common signs of dislocation on theinner side—backward projection of the olecranon, prominence of thetrochlea in the flexure of the elbow—and the position of the fragment Via. Old fracture of external condyle of humerus with displacement downward and inward andincomplete dislocation inward of ulna. in close relations with the head of the radius behind and above itsproper position. The much rarer dislocation outward could be recog-nized in like manner. The difficulty in treatment lies more in the reduction of displacement,if it is marked, than in the maintenance of the proper position if thatis secured. In most cases, those without much displacement, immobil-ization for three weeks at a right angle by a posterior moulded splintis sufficient, although, of course, pains must be taken to make reduc-tion as complete as possible. When the fragment has suffered one of the rarer displacements byrotation it is generally impossible to restore it to place without anoperation. In three such cases I opened the joint by an incision on theouter side and, with considerable difficulty in two, turned the fragmentback into
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