Translated Titles

Three-Dimensional Computed Tomography in Evaluation of Operated Lumbar Spine




許昭禹(Chao-Yu Hsu);施庭芳(Tiffany Ting-Fang Shih);黃國茂(Kou-Mou Huang);李瑤華(Yiu-Wah Li);陳博光(Po-Quang Chen)

Key Words

術後腰椎 ; 電腦斷層掃描 ; 三度空間重組 ; postoperative lumbar spine ; computed tomography ; three-dimensional reconstructions



Volume or Term/Year and Month of Publication

4卷4期(2000 / 07 / 01)

Page #

388 - 397

Content Language


Chinese Abstract


English Abstract

Three-dimensional (3-D) reconstructions from computed tomographic (CT) scans were applied in 19 patients with back symptoms after the operation for lumbar spine. The 3-D reconstructed images optimally demonstrate the postoperative changes, including the type and extent of prior decompressions, the extent of laminae and facet joints resected, the solidity of spinal fusion, and the incorporation of fusion mass with transverse processes and facet joints. In addition, for the patients with unexplained recurrent or persistent back pain after surgery, the 3-D reconstructed images discover some abnormalities not appreciated on plain radiographs and two-dimensional axial CT images, especially the gaps of nonunion and/or pseudoarthrosis. The sagittally split 3-D reconstructed images excellently display the size and shape of neural foramen and lateral recess, and the degree and causes of their stenosis. Accordingly, the spinal orthopedic surgeons are able to judge the adequacy of prior surgery and to identify the causes and points of instability, thus improving the pre- and postoperative planning.

Topic Category 醫藥衛生 > 醫藥衛生綜合