Journal of Bone and Joint Surgery, 1940;22:1-16.
© 1940 by The Journal of Bone and Joint Surgery, Inc
SPONDYLOLISTHESIS
Observations on Its Development, Progression, and Genesis
HAROLD H. HITCHCOCK M.D.1
1 OAKLAND, CALIFORNIA
In the three cases of spondylolisthesis which have been presented, roentgenographic evidence of progressive slipping of the fifth lumbar vertebra on the sacrum has been shown. It is suggested that trauma during delivery or shortly afterward may be the cause of this defect.