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Journal of Bone and Joint Surgery, 1967;49:523-526.
© 1967 by The Journal of Bone and Joint Surgery, Inc

Congenital Absence of Lumbar Articular Facets

A REPORT OF THREE CASES

HUGO A. KEIM M.D.1 and ROBERT D. KEAGY M.D.1

1 Northwestern University School of Medicine, Chicago, Illinois

Three cases of congenital unilateral absence of the articular processes of the lumbosacral joint have been described. All three patients had lumbar pain precipitated by

[See figure in the PDF file]

trauma and the result of a ruptured disc at another level in one of them. A brief review of the embryology and pertinent literature concerning this rare anomaly is presented.


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