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A 55-year-old patient returns for followup 2 years after a left ceramic-on-ceramic total hip arthroplasty. He has no pain or symptoms of instability. The video in Figure V shows him ascending stairs. All of the following factors may contribute to this phenomenon EXCEPT
Loss of fluid film lubrication.
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A 62-year-old patient is seen for routine follow-up after undergoing cementless total hip arthroplasty 2 years ago. The patient reports limited range of motion that severely affects daily activities. A radiograph is shown in Figure 51. Management should now consist of
nonsteroidal anti-inflammatory drugs and protected weight bearing.
irradiation to the affected area.
surgical excision and postoperative irradiation.
Figure 49 shows a histologic section of the lung in a patient who died during total hip arthroplasty. What unexpected finding is seen in the pulmonary capillaries?
A 58-year-old patient who underwent bilateral hip arthroplasty 12 years ago now reports pain in his hips and difficulty with ambulation to the point where he now uses crutches. A radiograph of the hip and pelvis is shown in Figure 26. What is the best treatment option for this patient?
Revision hip arthroplasty with a bipolar implant
Revision hip arthroplasty with impaction grafting on the femoral and acetabular side
Revision hip arthroplasty with a cemented jumbo acetabular component
Revision hip arthroplasty with a cementless acetabular component
Acetabular component revision with a tri-flange protrusio ring
Figure 23 shows failure of the femoral stem in a patient. What is the most likely reason for the failure?