. An American text-book of obstetrics. For practitioners and students. Fig. 32C—Spondylolisthesis, beginning (Schauta).. Fig. 325.—Spondylolisthesis, well marked (Schauta). Fig. 327.—Last lumbar vertebra of spondylo-listhesis (a) contrasted with a normal fifth lum-bar vertebra (Neugebauer). articular segment of the spinal arch and the pedicles are enormouslylengthened from behind forward and are bent at an angle downward (). After a time this segment may exhibit a transverse fracture or asolution of continuity from pressure and attrition. The deformity is alwaysgradual in development. I
. An American text-book of obstetrics. For practitioners and students. Fig. 32C—Spondylolisthesis, beginning (Schauta).. Fig. 325.—Spondylolisthesis, well marked (Schauta). Fig. 327.—Last lumbar vertebra of spondylo-listhesis (a) contrasted with a normal fifth lum-bar vertebra (Neugebauer). articular segment of the spinal arch and the pedicles are enormouslylengthened from behind forward and are bent at an angle downward (). After a time this segment may exhibit a transverse fracture or asolution of continuity from pressure and attrition. The deformity is alwaysgradual in development. If it develops during the childbearing period,successive labors become increasingly difficult. As the vertebra descends itpushes the sacrum backward and downward, and with it depresses the pos-terior portion of the pelvic brim. To compensate for this movement theanterior half of the pelvic brim rises and the height of the symphysis isincreased. This movement of the pelvis diminishes very markedly its inclina- 534 AMERICAN TEXT-BOOK OF OBSTETRICS. tion, and disturbs the normal relationship between the bones and t
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectobstetrics, bookyear1
