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Clinical evaluation performed by (b)(4) manager: partial hip revision surgery (stem and head) occurred 5 years after cementless total hip arthroplasty.Radiographic image provided shows the presence of radiolucent lines in gruen zones 1 and 7 and signs of stress shielding suggesting implant mobilization in the proximal region.Aseptic loosening is a possible, literature described adverse event after cementless total hip arthroplasty and causes are often unknown.The reason of this event cannot be determined.
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