OBJECTIVE Satisfactory results have been seen with epidural steroid injections (ESI) in patients with herniated disks (HD), but the role in lumbar spinal stenosis (LSS) has been less investigated. We compared long-term effects of ESI in HD and LSS patients. METHODS In a prospective, single-blind uncontrolled study, 60 patients with radicular pain due to HD (n = 32) or LSS (n = 28) were enroll...

OBJECTIVE Intermittent claudication (IC) is a typical symptom of peripheral arterial disease (PAD) and lumbar spinal stenosis (LSS). In order to prevent misdiagnosis of vascular disease, it is important to know the incidence of and risk factors for PAD in patients with LSS. Therefore, the aim of our study was to evaluate the incidence of and risk factors for PAD in patients with typical and sev...

A lexical signature (LS) is a small set of terms derived from a document that capture the “aboutness” of that document. A LS generated from a web page can be used to discover that page at a different URL as well as to find relevant pages in the Internet. From a set of randomly selected URLs we took all their copies from the Internet Archive between 1996 and 2007 and generated their LSs. We cond...

We introduce a novel model order reduction method for large-scale linear switched systems (LSS) where the coefficient matrices are affected by a low-rank switching. The key idea is to replace the LSS by a non-switched system with extended input and output vectors – called the envelope system – which is able to reproduce the dynamical behavior of the original LSS by applying a certain feedback l...

BACKGROUND There is no validated gold-standard diagnostic support tool for LSS, and therefore an accurate diagnosis depends on clinical assessment. Assessment of the diagnostic value of the history of the patient requires an evaluation of the differences and overlap of symptoms of the radicular and cauda equina types; however, no tool is available for evaluation of the LSS category. We attempte...

In this paper, we propose a new characterization for elementary trapping sets (ETSs) of variableregular low-density parity-check (LDPC) codes. Recently, Karimi and Banihashemi proposed a characterization of ETSs, which was based on viewing an ETS as a layered superset (LSS) of a short cycle in the code’s Tanner graph. A notable advantage of LSS characterization is that it corresponds to a simpl...

STUDY DESIGN A cross-sectional, case-control study. PURPOSE To investigate associations between physical fitness measures and disabilities related to back pain and quality of life (QOL) by the presence of symptomatic lumbar spinal stenosis (LSS) in elderly Korean women. OVERVIEW OF LITERATURE LSS leads to decreased functioning and reduced QOL. However, correlations among physical fitness, d...