Journal of Bone and Joint Surgery, 1961;43:180-184.
© 1961 by The Journal of Bone and Joint Surgery, Inc
The Developmental Origin of Spondylolisthesis
Two Case Reports
Lewis Cozen M.D.1
1 Los Angeles Orthopaedic Hospital, Los Angeles
Two cases are presented in which spondylolisthesis was a developmental defect of the spine and was not present at birth. Serial roentgenograms of these two patients show an intact neural arch during childhood followed by the presence of typical spondylolisthesis later in childhood.