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Batch review performed on 19 feb 2026.Cup: versafitcup 01.26.50mb versafitcup metalback dm ø50 mm (k083116) lot 122511: (b)(4) items manufactured and released on 13-sep-2012.Expiration date: 31-aug-2017.No anomalies found related to the problem.To date, (b)(4) items of the same lot have been sold with no similar reported event during the period of review.Liner: versafitcup dm 01.26.2850mhc double mobility hc liner ø28/dme (k092265) lot 124168: (b)(4) items manufactured and released on 21-dec-2012.Expiration date: 30-nov-2017.No anomalies found related to the problem.To date, (b)(4) items of the same lot have been sold with no similar reported event during the period of review.Visual inspection performed by r&d project manager.The components received for evaluation included the acetabular shell, the dual mobility polyethylene liner, and the cocr femoral head.Acetabular shell.The external surface of the acetabular shell showed that the titanium porous coating was largely absent across most of the shell surface, with only limited residual areas of coating still visible.This observation may be consistent with bone ongrowth/ingrowth and progressive incorporation of the coating into the surrounding bone during the in vivo period.No macroscopic evidence of implant fracture, structural deformation, or other mechanical damage was identified on the shell during the visual inspection.No clear indication of device-related mechanical failure was observed.Dual mobility polyethylene liner (mobile insert).The retrieved polyethylene mobile insert was visually examined and did not present macroscopic structural damage, fracture, rim breakage, or deformation.The component showed generalized yellowish discoloration, which is commonly associated with long-term in vivo aging and lipidic absorption.The articulating surfaces appeared generally smooth, without clear evidence of severe scratching, deep abrasion, or pronounced material loss that could indicate abnormal articulation.In addition, no clear eccentric wear pattern could be confirmed based on the macroscopic visual evaluation of the component.Cocr femoral head.The retrieved cobalt-chromium femoral head was also subjected to visual inspection.No macroscopic signs of abnormal wear, mechanical damage, or surface degradation were identified on the femoral head.Based on the visual inspection of the returned components and the information available at the time of the investigation, no definitive device-related root cause could be identified.No evidence of manufacturing defect or device malfunction was identified during the inspection.Root cuase: based on the information available no definitive root cause can be established, while there is no indication that any potential issue with the device may have caused or contributed to the event, and the device history record review does not indicate any potential manufacturing related issue.
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