Responsiveness of the Zurich Claudication Questionnaire in Patients With Lumbar Spinal Stenosis Undergoing Nonsurgical Treatment: A Secondary Analysis of a Randomized Controlled Trial.

Study Design: Secondary analysis of a randomized controlled trial.

Objective: We investigated the ability to distinguish patients with lumbar spinal stenosis (LSS) who improved from those who did not after receiving nonsurgical treatment. We used the disorder-specific Zurich Claudication Questionnaire (ZCQ) satisfaction subscale as an external anchor and estimated the minimal clinically important differences (MCIDs) for the ZCQ symptom severity and physical function subscales.

Minimal clinically important differences in walking capacity and physical activity after nonsurgical treatment in patients with lumbar spinal stenosis: a secondary analysis of a randomized controlled trial.

Background Context: Little information is available about the minimal clinically important differences (MCIDs) for objective physical measurements in people with lumbar spinal stenosis (LSS).

Purpose: To use disorder-specific anchor and, multiple anchor-, and distribution-based approaches to determine the MCIDs for walking capacity and physical activity in patients with LSS receiving nonsurgical treatment.

Study Design/setting: Secondary analysis of a randomized controlled trial.

Lumbar paraspinal muscle morphology is associated with spinal degeneration in patients with lumbar spinal stenosis.

Background Context: Lumbar spinal stenosis (LSS) has been reported to induce changes in paraspinal muscle morphology, but objective physical function and degenerative spine conditions are rarely assessed.

Purpose: To identify factors associated with paraspinal muscle morphology using objective physical and degenerative spine assessments in patients with LSS.

Study Design/setting: Cross-sectional design.

MRI grading of spinal stenosis is not associated with the severity of low back pain in patients with lumbar spinal stenosis.

Background: Although lumbar spinal stenosis (LSS) often coexists with other degenerative conditions, few studies have fully assessed possible contributing factors for low back pain (LBP) in patients with LSS. The purpose of this study was to identify factors associated with the severity of LBP in patients with LSS.

Methods: The patients with neurogenic claudication caused by LSS, which was confirmed by magnetic resonance imaging (MRI) were included in this cross-sectional study.

Supervised physical therapy versus surgery for patients with lumbar spinal stenosis: a propensity score-matched analysis.

Background: Previous studies comparing surgical with nonsurgical treatment for lumbar spinal stenosis (LSS) reported that surgery is superior to nonsurgical treatments, but intensive and adequate volume of physical therapy were rarely performed. The purpose of this study was to compare the 1-year follow-up outcomes of patients with LSS treated with supervised physical therapy or surgery using propensity score-matched analysis.

Methods: A total of 224 patients with LSS who received supervised physical therapy (n = 38) or surgery (n = 186) were included, of which 66 were matched on baseline demographics, radiological findings, and patient-reported outcomes.

Endplate defects, not the severity of spinal stenosis, contribute to low back pain in patients with lumbar spinal stenosis.

Background Context: It is controversial whether lumbar spinal stenosis (LSS) itself contributes to low back pain (LBP). Lower truncal skeletal muscle mass, spinopelvic malalignment, intervertebral disc degeneration, and endplate abnormalities are thought to be related to LBP. However, whether these factors cause LBP in patients with LSS is unclear.

Psychological Predictors of Satisfaction after Lumbar Surgery for Lumbar Spinal Stenosis.

Study Design: A retrospective study of prospectively collected clinical data.

Purpose: To identify preoperative psychological factors associated with patient satisfaction after surgery for lumbar spinal stenosis (LSS).

Overview Of Literature: Associations between depressive symptoms, anxiety, and worse surgical outcome or patient dissatisfaction have been reported in LSS patients.

Supervised physical therapy versus unsupervised exercise for patients with lumbar spinal stenosis: 1-year follow-up of a randomized controlled trial.

Objective: To compare the 1-year outcomes of patients with lumbar spinal stenosis treated with supervised physical therapy or unsupervised exercise.

Design: A single-center randomized controlled trial with concealed allocation, blinded assessor and intention-to-treat analysis.

Setting: Spine care center.

Sagittal imbalance of the spine-pelvis-lower extremity axis associated with back-related disability.

Background: The impact of sagittal imbalance in patients has been reported in LBP and LBP-related disabilities due to spinopelvic imbalance. However, no reports investigating the spine-pelvis-lower extremity axis using lateral images have been reported thus far. This study introduced a novel parameter of the spine-pelvis-lower extremity axis and evaluated whether this parameter was related to symptoms.

Associations between psychological factors and daily step count in patients with lumbar spinal stenosis.

Background: Body mass index, pain, female sex, and age have been reported as predictors of physical activity in patients with lumbar spinal stenosis (LSS). However, no reports have examined the psychological factors associated with physical activity in people with LSS.

Purpose: To use psychological assessments to identify the factors associated with physical activity measured as daily step count in people with LSS.

Influence of Sarcopenia on the Effect of Exercise Therapy for Elderly Patients with Chronic Low Back Pain.

Introduction: Sarcopenia, a condition characterized by decreased skeletal muscle mass, has increasingly been attracting attention in Japan, which has an aged society. The association between chronic low back pain (CLBP) and muscle mass is important. This study aimed to investigate the effect of exercise therapy for CLBP with or without sarcopenia.

Clinical Features of Sarcopenia in Patients With Lumbar Spinal Stenosis.

Study Design: Cross-sectional design.

Objective: To investigate the prevalence of sarcopenia and identify factors associated with sarcopenia in patients with lumbar spinal stenosis (LSS).

Summary Of Background Data: Patients with LSS have a higher prevalence of sarcopenia compared with healthy older adults.

Therapeutic Advantages of Frequent Physical Therapy Sessions for Patients With Lumbar Spinal Stenosis.

Study Design: A retrospective study of a randomized clinical trial and a prospective study of patients with lumbar spinal stenosis (LSS).

Objective: The aim of this study was to identify the effects of the number of physical therapy (PT) sessions on clinical outcomes of patients with LSS.

Summary Of Background Data: Supervised PT for patients with LSS has been reported to lead to better short-term outcomes in terms of disability and leg pain than unsupervised exercise.

Supervised physical therapy vs. home exercise for patients with lumbar spinal stenosis: a randomized controlled trial.

Background Context: Exercise has been reported to improve short-term outcomes for patients with LSS in terms of disability and back and leg pain. However, no studies have compared supervised exercise with unsupervised exercise or quantified physical activity using a pedometer to confirm compliance with a home exercise program.

Purpose: To compare the effectiveness of supervised physical therapy (PT) with unsupervised exercise for patients with lumbar spinal stenosis (LSS).