A treatise on orthopedic surgery . keep the hips farther back than thechest. In both flexion and extension the spine must be rigidlyheld in the corrected attitude, and there must be no motion atthe knees. There is, of course, a movement corresponding toextension at the ankle-joints when the legs and buttocks arethrown backward to compensate for the forward bending of thebody. The object of this exercise is to train the patient to keepthe hips back and the chest forward. The other exercises in self-correction are for the purpose ofovercoming lateral deviation of the spine, the right dorsal, lef
A treatise on orthopedic surgery . keep the hips farther back than thechest. In both flexion and extension the spine must be rigidlyheld in the corrected attitude, and there must be no motion atthe knees. There is, of course, a movement corresponding toextension at the ankle-joints when the legs and buttocks arethrown backward to compensate for the forward bending of thebody. The object of this exercise is to train the patient to keepthe hips back and the chest forward. The other exercises in self-correction are for the purpose ofovercoming lateral deviation of the spine, the right dorsal, leftlumbar curve being taken as the type (Fig. 145). This series is arranged in a progression, and each one must belearned before the next in order is attempted. 202 OBTHOPEDIC SUBGEBY. (c) Left ITeck Fiem.—The left hand is placed behind theneck, the left shoulder is raised, and the left elbow is held wellback. This posture impresses upon the patient the necessity ofapproximating the left shoulder and the neck (Fig. 146). Fig. Left neck firm. (d) Body Inclination to the Left.—This is a most im-portant posture ; it is intended to correct mechanically the faultyinclination to the right and to overcome the upper curve by trac-tion on its concavity. The patient holding the arm in the firstposition is instructed to stretch well out with the left elbow,rotating upward and abducting the left scapula as much as pos-sible. This puts upon the stretch the rhomboidei and the lower LATEEAL CUEVATUME OF THE SPINE. 203 half of the trapezius of the left side, thus making strong trac-tion upon their points of attachment in the dorsal concavity. Atthe same time the patient is directed to sway the pelvis to theright. This usually requires assistance at first, for it bringsinto action certain deep back muscles, over which one has ordi-narily but little control. The shoulders must be kept level and Fig. 147. ~*3*fl*lfe<-.
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