Affect and Low Back Pain: More to Consider Than the Influence of Negative Affect Alone.

Objectives: Affect balance style, a measure of trait positive affect (PA) and negative affect (NA), is predictive of pain and functioning in fibromyalgia and healthy individuals. The purpose of this study was to evaluate the distribution of affect balance styles and the relationship between these styles and clinical factors in low back pain.

Methods: In this cross-sectional study, patients with low back pain (N=443) completed questionnaires and were categorized as having 1 of 4 distinct affect balance styles: Healthy (high levels of PA and low levels of NA), Low (low PA/low NA), Reactive (high PA/high NA), and Depressive (low PA/high NA).

Intrathecal Versus Oral Baclofen: A Matched Cohort Study of Spasticity, Pain, Sleep, Fatigue, and Quality of Life.

Background: Baclofen commonly is used to manage spasticity caused by central nervous system lesions or dysfunction. Although both intrathecal and oral delivery routes are possible, no study has directly compared clinical outcomes associated with these 2 routes of treatment.

Objective: To compare spasticity levels, pain, sleep, fatigue, and quality of life between individuals receiving treatment with intrathecal versus oral baclofen.

Long-term intrathecal baclofen: outcomes after more than 10 years of treatment.

Objective: To report outcomes of intrathecal baclofen (ITB) therapy for spasticity management in a cohort of patients who had received this treatment for at least 10 years.

Design: A cross-sectional survey and retrospective chart review.

Setting: An academic rehabilitation outpatient clinic.