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Pseudotumor recurrence in a post-revision total hip arthroplasty with stem neck modularity: A case report

World Journal of Orthopedics 2020年第2期11卷 116-122页

作者： bhumit r desai Gonzalo E Sumarriva George F Chimento The University of Queensland School of Medicine Ochsner Clinical SchoolNew OrleansLA 70121United States Department of Orthopaedics Ochsner Clinic FoundationNew OrleansLA 70121United States

BACKGrOUND This unique presentation of hip swelling is only the seventh reported case of pseudotumor recurrence in a non-metal-on-metal total hip arthroplasty(THA)*** constellation of patient symptoms and laboratory findings contradict the expected elevated serum metal ion levels associated with the formation of *** presentation,lab trends,and imaging findings contribute to the growing base of knowledge surrounding the effects of corrosion in arthroplasty constructs with stem-neck *** SUMMArY A 74-year-old man status post primary THA presented with left hip swelling and elevated serum metal ions five years after implantation of a modular stem-neck *** swelling was diagnosed as pseudotumor based on laboratory trends and imaging findings and was treated with revision arthroplasty that completely resolved the initial hip *** patient presented with recurrent hip swelling and recurrent pseudotumor findings on imaging in the same hip four months ***-operative management with ultrasound-guided hip aspiration resulted in symptom relief and resolution of the recurrent *** one year of follow-up,the patient had no further recurrences of hip *** This case of post-revision pseudotumor recurrence elucidates attributable patient,surgical,and implant factors with a discussion of diagnostics,management,and prognosis for patients with pseudotumor in non-metal-on-metal arthroplasty constructs.

关键词： revision arthroplasty Pseudotumor Stem-neck modularity Pseudotumor recurrence Metal-on-metal arthroplasty Modular stem Case report

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