Atlas and epitome of traumatic fractures and dislocations . Fig. 72.—The lines joining thecondyles with the tip of the olec-ranon form a triangle. might be supposed (l priori. If the method is resorted toat all, the sound side should always be photographed forpurposes of comparison. FRACTURES OF THE UPPER EXTREMITY. 173 Fractures of the lower end of the humerus do not lendthemselves to classification. They present a great varietyof forms which often merge one into the other. In everycase, however, the fractures illustrated below must be Fig. 73. Figs. 73 and 74.—Various forms
Atlas and epitome of traumatic fractures and dislocations . Fig. 72.—The lines joining thecondyles with the tip of the olec-ranon form a triangle. might be supposed (l priori. If the method is resorted toat all, the sound side should always be photographed forpurposes of comparison. FRACTURES OF THE UPPER EXTREMITY. 173 Fractures of the lower end of the humerus do not lendthemselves to classification. They present a great varietyof forms which often merge one into the other. In everycase, however, the fractures illustrated below must be Fig. 73. Figs. 73 and 74.—Various forms of fracture occurring in the lowerend of the humerus: a-a, Supracondylar transverse fracture (Fig. 73);6-6, transverse fracture of the true articular process (Fig. 73); c-c, ob-lique external fracture (Fig. 74); d-d., oblique internal fracture (); e-e., isolated fracture of the internal (medial) condyle (Fig. 74);/-/, isolated fracture of the external (lateral) condyle (Fig. 73);g-g^ intra-articular splitting off of the capitellum (Fig. 74). Longi-tudinal and T, Y, and V fractures are produced by combinations ofvarious lines of fracture. We shall now proceed to give a detailed description ofthese fractures : (a) Supracondylar Fracture (Fradura supraeondy-Uca). (Plate 35, Fig. 3.)—This fracture is usually pro-duced by a fall on the elbow or hand, and is a commonfracture in children. The lower end of the humerus maybe broken through the shaft by a movement of flexionanteriorly or posteriorly (hyperextension). Kocher ac- 174 FRACTURES AND
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectfractur, bookyear1902
