Journal of Bone and Joint Surgery, 1963;45:1159-1170.
© 1963 by The Journal of Bone and Joint Surgery, Inc
Acquired Spondylolysis as a Sequel to Spine Fusion
R. I. HARRIS M.B., F.R.C.S.(C)1 and
J. J. WILEY M.D., F.R.C.S.(C)1
1 609 Medical Arts Building, Toronto 5, Ontario, Canada
Five cases of acquired spondylolysis following spine fusion are presented. An autopsy specimen of a lumbosacral fusion is included as the sixth case, which demonstrated such a defect in the isthmus at the upper margin of the fusion. A brief résumé of the theories of the etiology of isthmus defects is presented along with a discussion of the acquired nature of the particular example of spondylolysis considered here.