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PubMed1993

Osteoarticular infection in intravenous drug abusers: influence of HIV infection and differences with non drug abusers.

OBJECTIVES: To determine (a) the influence of HIV in developing osteoarticular infections in intravenous drug abusers (IVDAs) and (b) the differences between the clinical features of osteoarticular infections in IVDAs and a control group of non-IVDAs. METHODS: A comparative study of the clinical features of osteoarticular infections in all HIV positive and HIV negative IVDAs admitted to the departments of rheumatology and internal medicine during a 10 year period was carried out. The joint infections of all IVDAs, irrespective of HIV status, were compared with those of a control group of non-IVDAs lacking risk factors for HIV infection. RESULTS: A total of 482 HIV positive and 85 HIV negative IVDAs was studied, in whom 25 (5%) and six (7%) osteoarticular infections were found respectively. There were no differences in age, sex, joints affected, and causative agents between these two groups. A comparison of the 31 (5.5%) osteoarticular infections in all IVDAs with 21 infections in 616 (3.4%) non-IVDAs showed significant differences in the mean age (27.5 v 54), the frequency of affection of the axial joints (hip, sacroiliac, and sternocostal joints) (64.5% v 16.6%), and in the incidence of Candida albicans (19% v 0%). CONCLUSIONS: (1) HIV may not predispose to osteoarticular infections in IVDAs. (2) The hip, sacroiliac, and sternocostal joints (axial joints) were most commonly affected in IVDAs. (3) In Spain, unlike other countries, Gram positive bacteria and C albicans seem to be predominant agents in osteoarticular infections in IVDAs, with a low incidence of Gram negative bacteria.

Adolescent↗
PubMedDate not supplied

Correlation of clinical examination characteristics with three sources of chronic low back pain.

BACKGROUND CONTEXT: Research has demonstrated some progress in using a clinical examination to predict discogenic or sacroiliac (SI) joint sources of pain. No clear predictors of symptomatic lumbar zygapophysial joints have yet been demonstrated. PURPOSE: To identify significant components of a clinical examination that are associated with symptomatic lumbar discs, zygapophysial joints and SI joints. STUDY DESIGN: A prospective, criterion-related concurrent validity study performed at a private radiology practice specializing in spinal diagnostics. PATIENT SAMPLE: The sample consisted of 81 patients with chronic lumbopelvic pain referred for diagnostic injections. OUTCOME MEASURES: Contingency tables were constructed for nine features of the clinical evaluation compared with the results of diagnostic injections. Statistical analysis included chi-squared test for independence, phi and odds ratios with confidence intervals. METHOD: Patients received blinded clinical examinations by physical therapists, and diagnostic injections were used as the criterion standard. RESULTS: Significant relationships were found between discogenic pain and centralization of pain during repeated movement testing, and pain when rising from sitting. Lumbar zygapophysial joint pain was associated with absence of pain when rising from sitting. Sacroiliac joint pain was related to three or more positive pain provocation tests, pain when rising from sitting, unilateral pain and absence of lumbar pain. CONCLUSIONS: Significant correlations exist between clinical examination findings and symptomatic lumbar discs, zygapophysial and SI joints. The strongest relationships were seen between SI joint pain and three or more positive pain provocation tests, centralization of pain for symptomatic discs and absence of pain when rising from sitting for symptomatic lumbar zygapophysial joints.

Adolescent↗
PubMedDate not supplied

Ultrasound imaging for the rheumatologist. VI. Ultrasonography of the elbow, sacroiliac, parasternal, and temporomandibular joints.

Ultrasound (US) examination of the elbow and parasternal joints is very useful to detect synovitis, degenerative changes, intrarticular calcification or soft tissue abnormalities. More recently new fields of research involving the sacroiliac and temporomandibular (TM) joints have evolved. Moreover, important information has been obtained about vascularization of the synovial joint in the sacroiliac region and structural modification such as internal derangement in the TM joint.. In this paper, we review and discuss the role of US in the evaluation of elbow, sacroiliac, parasternal and TM joint pathology.

Elbow↗