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ABSTRACT: Objective
To assess the predictive factors for subjective improvement with nonsurgical treatment in consecutive patients with lumbar spinal stenosis (LSS).Materials and methods
Patients with LSS were enrolled from 17 medical centres in Japan. We followed up 274 patients (151 men; mean age, 71 ± 7.4 years) for 3 years. A multivariable logistic regression model was used to assess the predictive factors for subjective symptom improvement with nonsurgical treatment.Results
In 30% of patients, conservative treatment led to a subjective improvement in the symptoms; in 70% of patients, the symptoms remained unchanged, worsened, or required surgical treatment. The multivariable analysis of predictive factors for subjective improvement with nonsurgical treatment showed that the absence of cauda equina symptoms (only radicular symptoms) had an odds ratio (OR) of 3.31 (95% confidence interval [CI]: 1.50-7.31); absence of degenerative spondylolisthesis/scoliosis had an OR of 2.53 (95% CI: 1.13-5.65); <1-year duration of illness had an OR of 3.81 (95% CI: 1.46-9.98); and hypertension had an OR of 2.09 (95% CI: 0.92-4.78).Conclusions
The predictive factors for subjective symptom improvement with nonsurgical treatment in LSS patients were the presence of only radicular symptoms, absence of degenerative spondylolisthesis/scoliosis, and an illness duration of <1 year.
SUBMITTER: Matsudaira K
PROVIDER: S-EPMC4749385 | biostudies-literature | 2016
REPOSITORIES: biostudies-literature
Matsudaira Ko K Hara Nobuhiro N Oka Hiroyuki H Kunogi Junichi J Yamazaki Takashi T Takeshita Katsushi K Atsushi Seichi S Tanaka Sakae S
PloS one 20160210 2
<h4>Objective</h4>To assess the predictive factors for subjective improvement with nonsurgical treatment in consecutive patients with lumbar spinal stenosis (LSS).<h4>Materials and methods</h4>Patients with LSS were enrolled from 17 medical centres in Japan. We followed up 274 patients (151 men; mean age, 71 ± 7.4 years) for 3 years. A multivariable logistic regression model was used to assess the predictive factors for subjective symptom improvement with nonsurgical treatment.<h4>Results</h4>In ...[more]