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Basic Science
intermediate
X-Type

Orthopaedic Infections

Infection

A 65-year-old diabetic man presents 6 weeks after total hip arthroplasty with persistent wound drainage and increasing hip pain. CRP is elevated at 85 mg/L, and ESR is 65 mm/hr. He is afebrile. Hip aspiration shows 25,000 white cells/μL with 85% neutrophils. Gram stain shows gram-positive cocci in clusters. Regarding orthopaedic infections:

Mark each as TRUE or FALSE

A

Staphylococcus aureus is the most common organism in both native joint septic arthritis and peripros...

B

Diagnosis of periprosthetic joint infection (PJI) uses MSIS criteria: major criteria (two positive c...

C

All orthopaedic infections can be treated with antibiotics alone; biofilm is easily eradicated by st...

D

Treatment of acute PJI (less than 4 weeks from surgery or 3 weeks from symptom onset) may include DA...

E

Native joint septic arthritis is a surgical emergency requiring urgent joint washout; knee is most c...

Answer the questions to see explanations

Click T (True) or F (False) for each option