Joseph D. Fortin

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STUDY DESIGN This study is a prospective cross-sectional analytic study. OBJECTIVES The authors determined the prevalence and clinical features of patients with pain stemming from the lumbar zygapophysial joints. SUMMARY OF BACKGROUND DATA Previous studies have demonstrated a wide range of prevalence for zygapophysial joint pain and conflicting results(More)
STUDY DESIGN A prospective cross-sectional analytic approach was taken. OBJECTIVES This study sought to determine the relative contribution of the disc and the zygapophyseal joint as a pain source in patients with chronic low back pain. SUMMARY OF BACKGROUND DATA Previous studies have employed either zygapophyseal joint blocks or discography, but in no(More)
STUDY DESIGN This was a cross-sectional analytic study of patients with chronic low back pain. OBJECTIVE To investigate whether the criteria for internal disc disruption, as adopted by the International Association for the Study of Pain, could be satisfied in patients with chronic low back pain and to test whether there were any conventional clinical(More)
One hundred and seventy-six consecutive patients with chronic low back pain and no history of previous lumbar surgery were studied to determine the false-positive rate of single diagnostic blocks of the lumbar zygapophysial joints. All patients underwent diagnostic blocks using lignocaine. Those patients who obtained definite or complete relief from these(More)
BACKGROUND Although opioids are known to inhibit testosterone production and bone formation, no prior study has investigated the relationship between opioid use in male subjects and bone mass density measurements. METHOD Eighty-one male patients who had been using opioids for a period of time from a few weeks to 20 years were included in this study. Blood(More)
BACKGROUND The use of hyperbaric oxygen for children with cerebral palsy has spread worldwide, despite little scientific evidence of efficacy. We did a randomised trial to assess the efficacy and side-effects of this form of therapy in children with cerebral palsy. METHODS 111 children with cerebral palsy aged 3-12 years were randomly assigned hyperbaric(More)
STUDY DESIGN A pain referral map generated from Part I of this study was tested in 54 consecutive patients. Pain diagrams, completed by each patient, were compared to the map generated from sacroiliac injections in 10 volunteers (Part I). Two clinicians, blinded to the examination of each individual, selected the diagrams most consistent with the pain map.(More)
STUDY DESIGN Pain pattern mapping of the sacroiliac joint in asymptomatic volunteers was investigated. Prospective evaluation of 10 volunteers who received sacroiliac joint injections was performed. The injections consisted of contrast material followed by Xylocaine. OBJECTIVES To determine the pain referral pattern of the sacroiliac joint in asymptomatic(More)
Simple and reliable diagnostic aids need to be available for clinicians to consider sacroiliac joint dysfunction in the differential diagnosis of low back pain. The Fortin finger test was used as a means to identify patients with low back pain and sacroiliac joint dysfunction. Provocation-positive sacroiliac joint injections were used to ratify or refute(More)
The purpose of this study was to identify the socioeconomic conditions and clinical history of ankylosing spondylitis patients in Switzerland. Data collected from 1177 ankylosing spondylitis patients, through a mail-in questionnaire, was analyzed for epidemiological factors, clinical presentation, musculoskeletal related surgical history and socioeconomic(More)