KNEE ASPIRATION
KNEE INFECTIONS
Synovial fluid:
Normal: <200 WBC’s, <25% polys, gram stain -Noninflammatory : <2000 WBC’s, <25% polys, gram stain –Inflammatory: 5000-75000 WBC’s, 50-75% polys, gram stain –Septic: >50000 WBC’s, >75% polys, gram stain +/-Hemorrhagic: similar to normal blood levels, gram stain -
CHRONIC KNEE PAIN
What is Osteoarthritis?
• Cartilage deteriorates and friction is created between bone surfaces.
• Symptoms include:– Chronic knee pain– Knee stiffness– Difficulty with everyday
activities (walking, driving, stair climbing)
SYMPTOMS OF ARTHRITIS
Pain!InstabilityLockingSwelling
CLINICAL FINDINGS - ARTHRITIS
DIAGNOSIS OF ARTHRITIS
DIAGNOSIS OF ARTHRITIS
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