A treatise on orthopedic surgery . Showing the rigidity of the spine before appearance of Test for psoas contraction. that rigidity even in the upper dorsal region may be demon-strated by this method, and in testing the lumbar region thethorax should be fixed by the hand. One should then examine for 44 OETEOPEDIC SUBGERY. psoas contraction. The pelvis is pressed firmly against the tablewith one hand, while the leg, held in the line of the body, isgently lifted by the other (Fig. 16). The normal range ofhyperextension at the hip-joint should allow the knee to belifted two or
A treatise on orthopedic surgery . Showing the rigidity of the spine before appearance of Test for psoas contraction. that rigidity even in the upper dorsal region may be demon-strated by this method, and in testing the lumbar region thethorax should be fixed by the hand. One should then examine for 44 OETEOPEDIC SUBGERY. psoas contraction. The pelvis is pressed firmly against the tablewith one hand, while the leg, held in the line of the body, isgently lifted by the other (Fig. 16). The normal range ofhyperextension at the hip-joint should allow the knee to belifted two or three inches from the table. Restriction of ex-tension of both thighs, indicating a slight degree of psoas con-traction, is very common in lumbar Potts disease; but when therestriction is marked, and especially if it is unilateral, a deepabscess may be suspected. Such unilateral psoas contractionmay be demonstrated by placing the child on the back, allowing Fig. 17.
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Keywords: ., bookauthorwhitmanr, bookcentury1900, bookdecade1910, bookyear1910
