Open AccessResults of Expansive Laminoplasty for Lumbar Spinal Stenosis in Active Manual Workers
Author(s) -
Hisao Matsui,
Haruo Tsuji,
Hiromichi Sekido,
Naoki Hirano,
Yoshiharu Katoh,
N. Makiyama
Publication year - 1992
Publication title -
spine (philadelphia, pa. 1976)/spine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.657
H-Index - 254
eISSN - 1528-1159
pISSN - 0362-2436
DOI - 10.1097/00007632-199203001-00008
Subject(s) - medicine , laminoplasty , cauda equina , lumbar spinal stenosis , spinal stenosis , expansive , spinal canal , lumbar , surgery , stenosis , laminectomy , radiology , spinal cord , compressive strength , materials science , psychiatry , composite material
Expansive laminoplasty was done on 18 selected patients with lumbar spinal canal stenosis who were active manual workers and 2 patients with cauda equina tumors from 1982 to 1990. Postoperative follow-up on the initial 10 cases of spinal stenosis was 1-7 years (mean, 3 years). Using computed tomography, the spinal canal was found to be enlarged with a nearly rectangular shape, and the mean percent enlargement was 119% (1.9 cm2). Spinal stability also was reinforced. The preoperative mean evaluation score (Japanese Orthopaedic Association score) was 10.4 (full scale, 29). The mean score improved to 24 postoperatively (mean percent improvement, 73%). These findings did not change during the long follow-up, and the satisfactory results were maintained.