. Atlas and epitome of traumatic . A. Fit LUh. Anst tlReichhchi. Muncncn. FRACTURES OF THE LOWER EXTREMITY. 323 of fractures of the ankle. The abduction or pronationof the foot at the astragalo-crural articulation throws greatstrain on the internal lateral ligament or deltoid the movement is continued, the tip of the internal mal-leolus and not the ligament, as a rule, gives way. As thenext step the foot asa whole, and especial-ly the heel, is forcedagainst the externalmalleolus, and thefibula gives way at itsweakest point a fewinches above the an-kle. In a number ofcases th
. Atlas and epitome of traumatic . A. Fit LUh. Anst tlReichhchi. Muncncn. FRACTURES OF THE LOWER EXTREMITY. 323 of fractures of the ankle. The abduction or pronationof the foot at the astragalo-crural articulation throws greatstrain on the internal lateral ligament or deltoid the movement is continued, the tip of the internal mal-leolus and not the ligament, as a rule, gives way. As thenext step the foot asa whole, and especial-ly the heel, is forcedagainst the externalmalleolus, and thefibula gives way at itsweakest point a fewinches above the an-kle. In a number ofcases the weight ofthe body on the ab-ducted foot after theinternal malleolus hasbeen fractured pro-duces a bending andfinally a fracture ofthe fibula, as that bonealone is unable to sup-port the weight ofthe body. Symptoms.—Ac-cordingly, the tip ofthe internal malleolusin a typical fractureof the ankle is ab-normally movable andoften displaced down-
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