Assessment of Central Pain in Patients Who Undergo Spinal Surgery and Influence in Surgery Outcome

Study Overview
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Brief Summary
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Pain is one of the most common concerns for which patients seek medical attention. Pain is usually understood as symptom that reflects peripheral organic damage. Many patients experience pain, often chronically, independently of any underlying cause such as chronic regional pain syndromes (irritable bowel syndrome, temporo-mandibular pain syndrome, chronic headache or chronic low back pain)or diffuse like in fibromyalgia. In all those functional syndromes, accumulated evidence supports involvement of central pain processing systems, hypothalamic pituitary adrenal axes and autonomic nervous system, and are now referred as central pain conditions. Other patients suffers from chronic pain caused by damage or inflammation in peripheral tissues, but also experienced more diffuse pain, not directly explained by peripheral damage, that further aggravates pain and function. This is illustrated by the high prevalence of fibromyalgia observed in patients with rheumatoid arthritis, osteoarthritis or ankylosing spondylitis for example. These pain conditions are now understood as combinations of peripheral, neuropathic and central pain. The investigators aimed to focus in this study in patients that are candidates to spinal surgery and suffer from low back pain and/or radiculopathy. Pain in these patients may arise from damage to nerves - neuropathic pain- , to musculoskeletal structures - peripheral pain-, and may also reflects alteration in central pain processes. In these patients, spine surgery is usually performed to improve quality of life, decrease pain and avoid neurological deficits. Evaluation of surgical outcome includes objective measures such as neurological findings and radiographic evaluation, and subjective measures including patient self-assessments for pain and quality of life and psychological changes. The aim of this study is to evaluate patients who undergo spinal surgery for presence of central pain and central sensitization symptoms and evaluate their influence on these surgical outcomes

Official Title
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Assessment of Central Pain in Patients Who Undergo Spinal Surgery and Influence in Surgery Outcome

Conditions
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Spinal Surgery, Pain

Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: candidates to spinal surgery attending the spine clinic able to give inform consent Exclusion Criteria: pregnant women children under 18 current infection in spine

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| spinal surgery<br>patients who undergo spinal surgery | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| evaluation of surgery outcome including pain and functionnal ability | evaluation of course of surgery, use of analgesics medications, report of pain intensity, length of hospital stay, questionnaires of health status and functionnal index, physical examination and dolorimetric evaluation | 3 months | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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central pain, spine surgey, outcome, patients undergo spinal surgery