A treatise on orthopedic surgery . tyof the pars anterior of the hypophysis (hyperpituitarism), theother to a diminished activity of the same epithelial structure(hypopituitarism), seem capable of clinical differentiation. The former expresses itself chiefly as a process of overgrowth-—gigantism, when originating in youth, acromegaly whenoriginating in adult life. The latter expresses itself chiefly asan excessive, often a rapid, deposition of fat with persistence ofinfantile sexual characteristics when the process dates fromyouth, and a tendency toward a loss of the acquired signs ofadolescen
A treatise on orthopedic surgery . tyof the pars anterior of the hypophysis (hyperpituitarism), theother to a diminished activity of the same epithelial structure(hypopituitarism), seem capable of clinical differentiation. The former expresses itself chiefly as a process of overgrowth-—gigantism, when originating in youth, acromegaly whenoriginating in adult life. The latter expresses itself chiefly asan excessive, often a rapid, deposition of fat with persistence ofinfantile sexual characteristics when the process dates fromyouth, and a tendency toward a loss of the acquired signs ofadolescence when it first appears in adult life (Gushing). CHAPTEK XV. CONGENITAL DISLOCATION OF THE HIP AND COXA VARA. CONGENITAL DISLOCATION AT THE HIP-JOINT. Of all the congenital dislocations, or, perhaps, more properly,misplacements, that of the hip-joint is by far the most commonand the most important. Statistics.—Congenital dislocation of the hip is much morecommon in females than in males. In 1362 cases collected from Fig. Congenital dislocation of the hip, showing the elongated capsule and the right-angled relation of the neck to the shaft of the femur. (William Adams.) different sources by Hoffa, 1189 ( per cent.) were in fe-males and 173 ( per cent.) in males. Of 1039 cases seen atthe Polyclinic in Milan, 867 ( per cent.) were in females,172 ( per cent.) in males.^ In 801 cases from the records ^ Bernacchi, Zeits. Ortli. Chir., vol. ii., p. 275. For complete review oftlie literature see Schultze, Arch. f. Mechanotherapie u. unfall. Chir., 7, 1,1908. 536 CONGENITAL DISLOCATION OF HIP AND COXA VARA. 537 of the Hospital for Ruptured stnd Crippled, 655 ( percent.) were in females and 146 ( per cent.) in males. The dislocation is more often unilateral than bilateral. InHoffas series of 1362 cases 860 ( per cent.) were single;392 of the right, 468 of the left side. In 502 cases ( percent.) the displacement was bilateral. Statistics of 801 C
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