Surgical Decompressive Procedures for Cervical Spondylotic Myelopathy A Study Using Magnetic Resonance ImagingBATZDORF, ULRICH, MD*; FLANNIGAN, BONNIE D., M.D‡Spine: February 1991 - Volume 16 - Issue 2 - p 123–127 ORIGINAL ARTICAL: PDF Only Buy Abstract Author InformationAuthors Twenty-two patients who underwent a surgical decompressive procedure for cervical spondylotic myelopathy were studied with magnetic resonance imaging to evalu ate the effectiveness of their decompressive procedures. Twelve patients were judged as adequately decom pressed by magnetic resonance imaging criteria. Ten patients exhibited evidence of residual cord indentation. This along with cord atrophy, gliosis, and abnormal spine curvature presumably contributed to, residual deficit in several patients. One patient underwent a second decom pressive procedure for residual cord indentation, which subsequently improved, as seen on his second postop erative magnetic resonance image. Magnetic resonance imaging was useful in distinguishing mechanical prob lems from intrinsic cord damage or atrophy. Magnetic resonance imaging should be used after operation in patients with residual deficit to detect patients who may be considered for a second decompressive procedure. Department of Surgery (Neurosurgery), UCLA school of Medicine Los Angeles, California, and the ?Department of Neurondiology, Valley Presbyterian Hospital, Van Nuys, California. © Lippincott-Raven Publishers.