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September 1947


Arch Surg. 1947;55(3):271-287. doi:10.1001/archsurg.1947.01230080277003

POSTERIOR herniation of intervertebral disk in the lumbar portion of the spine has evoked much discussion in recent years and there is still great diversity of opinion concerning diagnostic criteria, methods of treatment and results obtained by various methods of treatment

The object of this report is to analyze 90 cases in which operation for herniated lumbar disk was performed at the University of Minnesota Hospitals between Aug. 1, 1942 and Dec. 31, 1945.

Prior to March 1944, a pathologic lesion of the disk was removed, when exposed, but spinal fusion was not performed. Operation was done in 43 cases during this period without spinal fusion. After March 1944, a spinal fusion was performed in every case in which a pathologic lesion of the disk was removed, and occasionally after exploration had not revealed such a lesion. During this second period operation was performed in 47 cases.

In analyzing the

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