RT Journal A1 HAAS SL T1 REsection of the intervertebral disk through the posterior approach JF Archives of Surgery JO Archives of Surgery YR 1949 FD December 1 VO 59 IS 6 SP 1261 OP 1264 DO 10.1001/archsurg.1949.01240041275005 UL http://dx.doi.org/10.1001/archsurg.1949.01240041275005 AB IN A PREVIOUS paper it was shown that fusion of the vertebral bodies could be attained when the intervertebral disk was removed through the transabdominal approach.1 It was predicated at that time that the same result could be obtained by removing the disk after a laminectomy from the usual posterior approach. It has been claimed by some surgeons that osseous union will be secured in patients after thorough removal of the disk through the posterior approach, although no conclusive evidence has been presented to establish it as a fact.In order to study the results of a resection of the disk through the posterior approach, a series of experiments were performed on animals. The method employed consisted of exposing the spinous processes and the laminas of the lower lumbar vertebrae. Because of the small size of the laminas and the disk, it was necessary to remove the spinous processes