title: Results of expansive laminoplasty for lumbar spinal stenosis in active manual workers.
abstract: 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.
authors.affiliation: Department of Orthopaedic Surgery, Faculty of Medicine, Toyama Medical and Pharmaceutical University, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Matsui
authors.forename: H
authors.initials: H
authors.lastname: Tsuji
authors.forename: H
authors.initials: H
authors.lastname: Sekido
authors.forename: N
authors.initials: N
authors.lastname: Hirano
authors.forename: Y
authors.initials: Y
authors.lastname: Katoh
authors.forename: N
authors.initials: N
authors.lastname: Makiyama
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015444:Exercise; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008159:Lumbar Vertebrae / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D011859:Radiography; D013130:Spinal Stenosis / Q000000981:diagnostic imaging / Q000453:epidemiology / Q000601:surgery*; D013997:Time Factors