{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T23:02:09Z","timestamp":1777676529143,"version":"3.51.4"},"reference-count":10,"publisher":"SAGE Publications","issue":"1","license":[{"start":{"date-parts":[[2007,1,1]],"date-time":"2007-01-01T00:00:00Z","timestamp":1167609600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["HIP International"],"published-print":{"date-parts":[[2007,1]]},"abstract":"<jats:p>Advancement or separation of the apex hole eliminator screw in uncemented Duraloc 100 cups (DePuy\u00ae, Warsaw, Indiana, USA) has been recently reported as a radiographic finding without clinical effects.<\/jats:p>\n                  <jats:p>We report four patients with a separation of the apex hole eliminator screw in Duraloc 300 uncemented cups and aseptic failures of a hybrid total hip arthroplasty (acetabular osteolysis and femoral stem loosening). Revision surgery was performed when disabling pain and radiographic signs of loose components were present.<\/jats:p>\n                  <jats:p>Although difficult to determine, a relationship between the screw migration and the failure could have existed in these cases. Migration of the screw might not only be interpreted as a radiographic, clinically irrelevant finding. Its presence should alert the orthopaedic surgeon that the prosthesis is exposed to high intraarticular fluid pressures.<\/jats:p>","DOI":"10.1177\/112070000701700108","type":"journal-article","created":{"date-parts":[[2018,1,24]],"date-time":"2018-01-24T11:20:00Z","timestamp":1516792800000},"page":"40-44","source":"Crossref","is-referenced-by-count":0,"title":["Separation of the Apex Hole Eliminator Screw in Four Failed Hybrid Total hip Arthroplasties"],"prefix":"10.1177","volume":"17","author":[{"given":"F.","family":"Comba","sequence":"first","affiliation":[{"name":"Hip Surgery Unit, Institute of Orthopaedics \u201cCarlos E. Ottolenghi\u201d, Italian Hospital, Buenos Aires - Argentina"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M.A.","family":"Buttaro","sequence":"additional","affiliation":[{"name":"Hip Surgery Unit, Institute of Orthopaedics \u201cCarlos E. Ottolenghi\u201d, Italian Hospital, Buenos Aires - Argentina"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"F.","family":"Piccaluga","sequence":"additional","affiliation":[{"name":"Hip Surgery Unit, Institute of Orthopaedics \u201cCarlos E. 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