The literature article entitled, "hip resurfacing arthroplasty for osteonecrosis of the femoral head: implant-specific outcomes and risk factors for failure" written by chan-woo park, seung-jae lim, joo-hwan kim, and youn-soo park published by the journal of orthopaedic translation made available online on 6 january 2020 was reviewed.The article's purpose was to investigate implant-specific outcomes and to analyze risk factors for failures of hip resurfacing arthroplasty (hra) in patients with osteonecrosis of the femoral head.Data was compiled from 202 hips (166 patients) implanted between september 2003 and october 2013 with depuy and non-depuy implants.Cement manufacturer is not identified.It is noted that 99 implants were depuy asr and the remaining were non-depuy.A total 17 asr implants required revisions.Figure 2 provides radiographic images with caption description of (b)(6) year old man prior to asr implantation and then requiring revision due to progressive groin pain 6 years postoperatively.Intraoperative findings were loose femoral implant followed by conversion to cementless total hip arthroplasty.Depuy products: asr cup, asr femoral head.Adverse events: figure 2 caption description (treated by revision).Armd (adverse reaction to metal debris treated by revision).Femoral neck fracture (treated by revision).Femoral implant loosening (interface unknown and treated by revision).Acetabular loosening (treated by revision).Unexplained pain (treated by revision).Infection (treated by revision).Elevated cobalt and chromium levels (treated by revision).Radiographic detection of osteolytic lesions, indentation, bony spur, neck narrowing and hetertopic ossification (treated by revision).
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