{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,3]],"date-time":"2026-06-03T15:56:37Z","timestamp":1780502197589,"version":"3.54.1"},"reference-count":30,"publisher":"SAGE Publications","issue":"5","license":[{"start":{"date-parts":[[2020,12,16]],"date-time":"2020-12-16T00:00:00Z","timestamp":1608076800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["HIP International"],"published-print":{"date-parts":[[2022,9]]},"abstract":"<jats:sec>\n                    <jats:title>Background:<\/jats:title>\n                    <jats:p>Modularity of metal-on-metal (MoM) implants has come under scrutiny due to concerns regarding additional sources of metal debris. This study is a retrieval analysis of implants from the same manufacturer with the same MoM bearing surface. The difference between the implants was presence or absence of modular junctions.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>This is a retrospective study of 31 retrieved implants from 31 patients who received a Conserve Wright Medical MoM hip prosthesis. The 31 implants consisted of 16 resurfacings and 15 implants with modular junctions; 4 conventional THAs and 11 modular-neck THAs.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>43% of pre-revision MRI scans performed on resurfacing implants and 91% performed on the modular implants illustrated evidence of an adverse local tissue reaction. There was no difference in pre-revision blood metal ion levels or bearing surface wear between the resurfacings and modular implants. The neck-head tapers of the modular group showed low levels of material loss. However, the neck-stem tapers showed increased severity of corrosion and material loss<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions:<\/jats:title>\n                    <jats:p>The modular implants had an increased incidence of adverse local tissue reaction. This could be related to the presence of modular junctions, particular the neck-stem junction which showed increased susceptibly to corrosion<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/1120700020979275","type":"journal-article","created":{"date-parts":[[2020,12,16]],"date-time":"2020-12-16T03:33:43Z","timestamp":1608089623000},"page":"677-684","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":4,"title":["Metal-on-metal total hip arthroplasty: does increasing modularity affect clinical outcome?"],"prefix":"10.1177","volume":"32","author":[{"given":"Kevin C","family":"Ilo","sequence":"first","affiliation":[{"name":"Institute of Orthopaedics and Musculoskeletal Science (University College London), Royal National Orthopaedic Hospital, Stanmore, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Harry S","family":"Hothi","sequence":"additional","affiliation":[{"name":"Institute of Orthopaedics and Musculoskeletal Science (University College London), Royal National Orthopaedic Hospital, Stanmore, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"John A","family":"Skinner","sequence":"additional","affiliation":[{"name":"Institute of Orthopaedics and Musculoskeletal Science (University College London), Royal National Orthopaedic Hospital, Stanmore, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alister J","family":"Hart","sequence":"additional","affiliation":[{"name":"Institute of Orthopaedics and Musculoskeletal Science (University College London), Royal National Orthopaedic Hospital, Stanmore, 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