Lateral curvature of the spine and round shoulders . Fig. 173.—Round Hollow Back. Fig. 174.—-Round Upper Back. rather likely to be rigid and respiratory capacity is poor. Thelumbar physiological curve is not necessarily abnormal (Fig. 174).4. Flat Back.—In certain cases the vertebral column is flat andhas apparently nearly lost its dorsal and lumbar physiological pelvic inclination is obviously diminished and a frequent associa-tion with this attitude is a forward resistant position of the shoulders.^This forward position of the shoulder girdle may, however, ac- ^Hasebrook: Zeitsch.
Lateral curvature of the spine and round shoulders . Fig. 173.—Round Hollow Back. Fig. 174.—-Round Upper Back. rather likely to be rigid and respiratory capacity is poor. Thelumbar physiological curve is not necessarily abnormal (Fig. 174).4. Flat Back.—In certain cases the vertebral column is flat andhas apparently nearly lost its dorsal and lumbar physiological pelvic inclination is obviously diminished and a frequent associa-tion with this attitude is a forward resistant position of the shoulders.^This forward position of the shoulder girdle may, however, ac- ^Hasebrook: Zeitsch. f. orth. Chir., xii, 4, 613. ETIOLOGY 20I company other forms of antero-posterior deviation, such as roundback. In certain cases as noted by Haglund^ the back is rounded fromside to side without especial kyphosis. It must be recognized how very superficial and unsatisfactory thisclassification is and it must be evident that we are a long way fromrecognizing the essentials which cause this condition. For purposesof discussion these four divis
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