"literature article entitled "a minimum of 15-year results of cementless total hip arthroplasty using a 28-mm metal-on-metal articulation" written by chan-woo park, md, joo-hwan kim, md, seung-jae lim, md, young-wan moon, md, youn-soo park, md published by the journal of arthroplasty published online/accepted by publisher 4 mar 2020 was reviewed.The purpose of this study was to evaluate the clinical and radiographic outcomes of the previously reported cohort at a minimum follow-up of 15 years.The original cohort consisted of 171 primary thas (167 patients) using a 28-mm mom articulation performed between april 2000 and march 2002.Of these, 130 hips (126 patients) were reviewed at an average follow-up of 17.1 (range, 15-18) years.Clinical score, complications, presence of osteolytic lesion, serum metal ion concentrations, and implant survivorship were evaluated.X-ray images can be found on page 3 of article.It is noted 25 deaths occurred that were initially involved in the study, however, there is no indication or allegation a depuy product was the cause or contributed to any of the indicated deaths.The reason for the deaths is not indicated in the study.Depuy products: ultima cementless cup, s-rom cementless stem, unnamed metal-on-metal head and liner, and s-rom sleeve.There is no indication of any revision involving the s-rom sleeve.Adverse events: 9 patients are identified by age and gender.8 of the 9 underwent revision operations.The ninth patient has not undergone a revision operation.Case 1: male.(b)(6) years old.Revision to address infection and edema.Within one year post-primary.Cup, liner, head, and stem revised.Case 2: female.(b)(6) years old.Revision to address dislocation, groin pain, osteolysis, necrosis, and alval.Cup, liner, and head revised.Case 3: male.(b)(6) years old.Revision due to joint infection and edema.Cup, liner, head, and stem revised 2+ years after primary.Case 4: female.(b)(6) years old.Revision due to groin pain, osteolysis, elevated metal levels, necrosis, and alval.Cup, liner, and head revised.Case 5: female.(b)(6) years old.Revision due to groin pain, osteolysis, elevated metal levels, necrosis, and alval.Cup, liner, and head revised.Case 6: male.(b)(6) years old.Revision due to groin pain, osteolysis, elevated metal levels, necrosis, and alval.Cup, liner, and head revised.Case 7: female.(b)(6) years old.Revision due to groin pain, osteolysis, elevated metal levels, and alval.Cup, liner, and head revised.Case 8: male.(b)(6) years old.Revision due to aseptic stem loosening and necrosis.Stem and head revised.Case 9: male.(b)(6) years old.X-ray imaging revealed osteolysis.No revision.".
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