student bone & Joint Infections & tumours ortho

student bone & Joint Infections & tumours...

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Infection in Bone and Joint
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Infection in bone Osteomyelitis acute (subacute) chronic specific (eg TB) non specific(most common)
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Acute haematogenous OM mostly children boys> girls history of trauma
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Acute Osteomyelitis Source Of Infection infected umbilical cord in infants boils, tonsilitis, skin abrasions in adults UTI, in dwelling arterial line
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Acute Osteomyelitis Organism Gram +ve staphylococus aureus strep pyogen  strep pneumonie Gram -ve haemophilus influnzae (50% < 4 y) e .coli pseudomonas auroginosa, proteus mirabilis
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Acute Osteomyelitis Pathology starts at metaphysis ?trauma vascular stasis acute inflammation suppuration necrosis new bone formation  resolution
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Acute Osteomyelitis
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Acute Osteomyelitis
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Acute Osteomyelitis Clinical Features severe pain  reluctant to move  fever malaise toxemia             
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Acute Osteomyelitis Infant failure to thrive drowsy irritable metaphyseal tenderness decrease ROM commonest around the knee
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Acute Osteomyelitis Adult commonly thoracolumbar spine fever  backache history of UTI or urological procedure old ,diabetic ,immunocompromised
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Acute Osteomyelitis Diagnosis History and clinical examination FBC, ESR, B.C. X-ray (normal in the first (10-14) days Ultrasound Bone  Scan Tc 99, Gallium 67 MRI  Aspiration
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Acute Osteomyelitis
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Acute Osteomyelitis Differential Diagnosis cellulitis acute septic arthritis acute rheumatism sickle cell crisis Gaucher’s disease
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Acute Osteomyelitis Treatment supportive treatment for pain and  dehydration splintage antibiotics surgery
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student bone &amp;amp; Joint Infections &amp;amp; tumours...

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