A treatise on orthopedic surgery . rtance in the etiology of lateralcurvature of the spine than is generally believed, and that thelarger proportion of the severe and intractable cases may betraced to this cause. As has been mentioned rhachitic scoliosisis, practically speaking, equally divided between the sexes. In about 15 per cent, of the cases under treatment by Trus-low the influence of one or more of the causes that have beenenumerated seemed to be apparent, viz.: Congenital deformity 2 Torticollis 2 Empyema 4 Anterior poliomyelitis 3 Inequality of the legs of more than half an inch 6 Eh
A treatise on orthopedic surgery . rtance in the etiology of lateralcurvature of the spine than is generally believed, and that thelarger proportion of the severe and intractable cases may betraced to this cause. As has been mentioned rhachitic scoliosisis, practically speaking, equally divided between the sexes. In about 15 per cent, of the cases under treatment by Trus-low the influence of one or more of the causes that have beenenumerated seemed to be apparent, viz.: Congenital deformity 2 Torticollis 2 Empyema 4 Anterior poliomyelitis 3 Inequality of the legs of more than half an inch 6 Ehachitis 13 Total 30 ^Bull. Medicale, June 15, 1901. 170 ORTHOPEDIC SUEGEEY. In tlie remaining 85 per cent, of the cases the direct causeof tlie deformitv was uncertain. Hereditary Influence.—By manv writers the influence of hered-ity is considered an important factor in the etiology. - Thatthere is such an intluence. predisposing to disease as yell as todeformity, is undoulDted, but it is very difficult to establish its Fig. 10-. u Posture induced by improper desli and chair. (Scudder.) connection with ordinary cases. In eleven of 201 cases, lateralcurvature was present in either the father or mother of thepatient; and in seventeen others a brother or sister of the patientwas deformed in a similar manner. Occupation.—As occupation may induce deformity in theadult, and one looks naturally to occupation as a factor in thecausation of lateral curvature in childhood. Occupation in thisclass implies school, and it is well known that fatigue duringschool hours may induce improper postures, especially if thechair is unsuitable or uncomfortable. The influence of habitualposture is indicated in the statistics of lateral curvature amongschool-children recorded by Scholder, Werth, and Combe,^ the ^Bull. Medicale, June 15. 1901. LATERAL CUBFATUEL: OF THE SPINE. 171 proportion of deformity steadily rising from the lower to thehigher classes (Figs. 107 and 108). Under the influence ofcon
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Keywords: ., bookauthorwhitmanr, bookcentury1900, bookdecade1910, bookyear1910
