Subject(s)
Aneurysm, False/therapy , Angiography , Embolization, Therapeutic , Image Processing, Computer-Assisted , Imaging, Three-Dimensional , Pulmonary Artery , Tomography, Spiral Computed , Tuberculosis, Pulmonary/complications , Adult , Aneurysm, False/diagnostic imaging , Antitubercular Agents/therapeutic use , Combined Modality Therapy , Diagnosis, Differential , Humans , Male , Pulmonary Artery/diagnostic imaging , Tuberculosis, Pulmonary/diagnostic imagingABSTRACT
Pyomyositis is a primitive infection of the skeletal muscle usually caused by Staphylococcus aureus in tropical areas, and associated with immunodeficiency. We report a 49-year-old immunocompetent woman, living in a temperate climate presenting with a pyomyositis of adductor muscles caused by Escherichia coli. Diagnosis was obtained with magnetic resonance imaging (MRI). Disease course was uneventful after surgical debridement and antibiotics. This case report highlights the usefulness of MRI in the diagnosis of pyomyositis.
Subject(s)
Escherichia coli Infections/complications , Escherichia coli Infections/diagnosis , Escherichia coli/isolation & purification , Immunocompetence , Muscle, Skeletal/microbiology , Pyomyositis/diagnosis , Pyomyositis/microbiology , Anti-Bacterial Agents/therapeutic use , Climate , Debridement , Escherichia coli Infections/therapy , Female , Humans , Magnetic Resonance Imaging , Middle Aged , Muscle, Skeletal/pathology , Pyomyositis/therapy , Thigh , Treatment OutcomeABSTRACT
As surface roughness may play a role in the mechanical attachment of an implant surface to bone, various implant surfaces have been prepared and analyzed by removal torque (countertorque) or push-out tests in a variety of animal model systems. Rougher surfaces generally have displayed higher mechanical testing values, indicating a stronger implant-bone interface. This pilot study was undertaken to test the countertorque values for integrated threaded implants with surfaces prepared by machining, blasting, and acid-etching, to compare the various implant surface types histomorphometrically for percentage of bone-implant contact under loaded and unloaded conditions, and to determine the degree of correlation between countertorque values and bone-implant contact with varying degrees of surface roughness. The results of this animal investigation suggest that the strength of the bone-implant interface, as determined by countertorque testing, is influenced by different surface characteristics. Acid-etched surfaces resisted countertorque forces more successfully as compared with blasted or machined surfaces. Histologic evaluation of bone contact with the various implant surfaces did not demonstrate a definite advantage for rougher surfaces in regard to percentage of bone contact at the light microscopic level.