A treatise on orthopedic surgery . Congenital scoliosis. Rhachitic scoliosis. affections of the spine (Fig. 103). Distortion symptomatic ofsacroiliac disease, or the more marked deformity caused bysciatic or lumbar neuritis (Fig. 88), may if persistent finallyinduce slight permanent deformity, but such cases hardly de-serve special consideration. 6. Lateral Curvature due to Occupation.—Lateralcurvature of a mild degree is incidental to certain occupationsthat require habitual inclination of the body. It is said to be 168 OBTEOPEDIC SUBGEBY. very common among stone-cutters, for example. Such de
A treatise on orthopedic surgery . Congenital scoliosis. Rhachitic scoliosis. affections of the spine (Fig. 103). Distortion symptomatic ofsacroiliac disease, or the more marked deformity caused bysciatic or lumbar neuritis (Fig. 88), may if persistent finallyinduce slight permanent deformity, but such cases hardly de-serve special consideration. 6. Lateral Curvature due to Occupation.—Lateralcurvature of a mild degree is incidental to certain occupationsthat require habitual inclination of the body. It is said to be 168 OBTEOPEDIC SUBGEBY. very common among stone-cutters, for example. Such deform-ity developing after tlie growth of the body has been attained isof interest as throwing light upon the etiology of the ordinaryform of lateral curvature. For if habitual attitudes can thus^change the contour of the developed spine, it is evident thaftsimilar postures, though far less constant, may influence the Fig. Congenital Lateral Curvature. spine of a growing child, particularly in one predisposed to suchdistortion. 7. Congenital Lateral Cukvatuee.—Congenital scoliosismay occur in infants otherwise normal due apparently to aconstrained attitude before birth. It is usually associated, how-ever, with other defects or deformities, for example, with cer- LATEBAL CUBFATUBE OF THE SPINE. 169 vical ribs, elevation of the scapula and the like. The deformitymay be apparent at birth or it may not be observed until lateryears, when examination by the X-ray shows supernumerary, de-ficient or fused vertebra and the like (Fig. 106). 8, Ehaciiitic Lateral Cukvatuee.—Khachitis predisposesto deformity of all parts of the body by lessened resistance ofall the tissues. As is well known, the common deformities fromthis cause are the so-called rhachitic kyphosis that develops inthe sitting child, and the distortions of the lower extremitiesin those who stand and walk. Lateral curvature of the spinesometimes
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