A treatise on orthopedic surgery . sents two distinctgrooves: one transverse in the axillary line, Harrison s groove,and the other passing upward by the side of the rhachitic deformities are in great degree causeel by atmosphericpressure, but they are increased if the child assumes the sittingposture habitually. In this attitude the body is inclined for-ward, the clavicles are distorted, and the spine is bent into amore or less rigid posterior curve, most marked in the lowerdorsal and lumbar regions, the rhachitic kyphosis. Less oftenthere mav be a lateral deviation or scoliosis.
A treatise on orthopedic surgery . sents two distinctgrooves: one transverse in the axillary line, Harrison s groove,and the other passing upward by the side of the rhachitic deformities are in great degree causeel by atmosphericpressure, but they are increased if the child assumes the sittingposture habitually. In this attitude the body is inclined for-ward, the clavicles are distorted, and the spine is bent into amore or less rigid posterior curve, most marked in the lowerdorsal and lumbar regions, the rhachitic kyphosis. Less oftenthere mav be a lateral deviation or scoliosis. 522 OBTHOPEDIC SUBGEB¥. The arms may be distorted by the efforts of the child to sup-port the body in the sitting posture, or by active exertion, as increeping (Fig. 340). Occasionally the deformity may belocalized at the elbow, and sufficiently marked to merit the namecubitus varus or valgus, corresponding to genu valgum or varum;or the principal distortion may be a dorsal convexity of thelower extremity of the radius. Fig. 340,. General rhachitic deformities, sliowing distortions of ttie arms and legs induced by posture. Spindle-shaped phalanges are sometimes noted among theearly signs of rhachitis in young children.^ The bones of the lower extremities are often distorted, pri-marily by the habitual postures assumed in sitting or creeping,and these deformities are usually exaggerated when the erectattitude is assumed. In some instances it would appear that thefemoral necks are twisted backward somewhat; this distortioninduced apparently by the cross-legged attitude of sitting mayexplain in part the limitation of inward rotation that is some- ^Neurath, Wien Klin., v. xl., N. 1617. CONGENITAL AND ACQUIRED AFFECTIONS. 523 times observed in rhachitic children. Depression of the femoralneck (coxa vara) may be present also, although this deformitydoes not, as a rule, attract attention until a much later period oflife. The changes in the pelvis are of special interest to theobstetr
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