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Review Question - QID 214834

THA Sciatic Nerve Palsy Etiology Causes QID: 214834 (SBQ10HK.20.2)
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QID 214834 (Type "214834" in App Search)
A 63-year-old patient undergoes a right total hip arthroplasty for advanced degenerative joint disease. The immediate post-op course was uneventful. However, during postop day 3 the patient experiences sudden shortness of breath and chest pain. Chest CT demonstrated a saddle pulmonary embolus, which required therapeutic dosing of enoxaparin. Subsequently, the patient develops profound anemia requiring 3 units of packed red blood cells. The patient however reports new-onset right leg pain and foot drop. What is the most likely cause of the patient's neurologic changes?
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