{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,24]],"date-time":"2026-09-24T21:23:22Z","timestamp":1790285002375,"version":"4.1.0"},"reference-count":22,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"10","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["The Journal of Bone and Joint Surgery"],"published-print":{"date-parts":[[2017,5,17]]},"abstract":"<jats:sec>\n                    <jats:title>Background:<\/jats:title>\n                    <jats:p>The use of a trabecular metal revision shell with metal augmentation to fill segmental or irregular defects during complex revision hip arthroplasty has been shown to provide good short-term results in prior published series. Longer-term results of the several cup-augment constructs used clinically are not known. The objective of this study was to report, with minimum 5-year radiographic and clinical follow-up, the outcome of these various constructs in revision total hip arthroplasty.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>Eighty-four patients (85 hips) underwent revision total hip arthroplasty with use of porous tantalum augments between 2000 and 2007 at a single institution and were retrospectively reviewed. Fifty-seven of the patients (58 hips) had clinical and radiographic follow-up at a minimum of 5 years. At the time of revision, the majority of the hips had acetabular defects classified as Paprosky Type 3A (28 of 58, 48%) or Type 3B (22 of 58, 38%). Eleven (19%) of the hips also had preoperative pelvic discontinuity. All hips were assessed clinically at a minimum of 5 years with use of the Mayo hip score. Postoperative radiographs were reviewed for implant stability, the presence and location of radiolucent lines and healing of the discontinuity if present.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>In 2 (3%) of the 58 hips, the constructs failed because of aseptic loosening of the acetabular component and re-revision was indicated. Six (10%) of the 58 hips demonstrated a radiolucent line between the trabecular metal shell and bone in DeLee and Charnley zone 3. In 1 hip that underwent re-revision and in 5 of the 6 hips with a zone-3 radiolucency, a pelvic discontinuity was present at the time of the index revision. The mean preoperative Mayo hip score was 35.7, which improved to 61.9 at 3 months and was 61.7 at the minimum 5-year follow-up.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions:<\/jats:title>\n                    <jats:p>With failure defined as aseptic loosening requiring repeat revision surgery, this cohort demonstrated 97% survivorship and maintained satisfactory hip function at the minimum 5 years after the index revision surgery. Six of the 11 hips with preoperative pelvic discontinuity either failed or developed a radiolucency in zone 3 and are considered at risk for future revision. Pelvic discontinuity should prompt consideration of the addition of adjunctive fixation or the use of alternative techniques.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Level of Evidence:<\/jats:title>\n                    <jats:p>\n                      Therapeutic\n                      <jats:underline>Level IV<\/jats:underline>\n                      . See Instructions for Authors for a complete description of levels of evidence.\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.2106\/jbjs.16.00125","type":"journal-article","created":{"date-parts":[[2017,5,17]],"date-time":"2017-05-17T10:42:38Z","timestamp":1495017758000},"page":"e49","source":"Crossref","is-referenced-by-count":117,"title":["Minimum Five-Year Outcomes with Porous Tantalum Acetabular Cup and Augment Construct in Complex Revision Total Hip Arthroplasty"],"prefix":"10.2106","volume":"99","author":[{"given":"Derek R.","family":"Jenkins","sequence":"first","affiliation":[{"name":"Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrew N.","family":"Odland","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rafael J.","family":"Sierra","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Arlen D.","family":"Hanssen","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"David G.","family":"Lewallen","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"276","reference":[{"issue":"5","key":"bib1-20230714","doi-asserted-by":"crossref","first-page":"711","DOI":"10.1302\/0301-620X.74B5.1527119","article-title":"Revision arthroplasty using an anti-protrusio cage for massive acetabular bone deficiency","volume":"74","author":"Berry","year":"1992","journal-title":"J Bone Joint Surg Br."},{"issue":"8","key":"bib2-20230714","doi-asserted-by":"crossref","first-page":"951","DOI":"10.1054\/arth.2000.9055","article-title":"Revision total hip arthroplasty with the use of structural acetabular allograft and reconstruction ring: a case series with a 10-year average follow-up","volume":"15","author":"Saleh","year":"2000","journal-title":"J Arthroplasty."},{"issue":"2","key":"bib3-20230714","doi-asserted-by":"crossref","first-page":"428","DOI":"10.1007\/s11999-011-2126-1","article-title":"Pelvic discontinuity treated with custom triflange component: a reliable option","volume":"470","author":"Taunton","year":"2012","journal-title":"Clin Orthop Relat Res."},{"issue":"8","key":"bib4-20230714","first-page":"481","article-title":"Structural acetabular allograft in revision total hip arthroplasty","volume":"31","author":"Paprosky","year":"2002","journal-title":"Am J Orthop (Belle Mead NJ)."},{"issue":"3","key":"bib5-20230714","doi-asserted-by":"crossref","first-page":"296","DOI":"10.1302\/0301-620X.89B3.18080","article-title":"High rate of failure of impaction grafting in large acetabular defects","volume":"89","author":"van Haaren","year":"2007","journal-title":"J Bone Joint Surg Br."},{"issue":"2","key":"bib6-20230714","doi-asserted-by":"crossref","first-page":"234","DOI":"10.1080\/17453670610045966","article-title":"Mueller reinforcement rings in acetabular revision: outcome in 164 hips followed for 2-17 years","volume":"77","author":"Schlegel","year":"2006","journal-title":"Acta Orthop."},{"issue":"6","key":"bib7-20230714","doi-asserted-by":"crossref","first-page":"83","DOI":"10.1016\/j.arth.2006.05.008","article-title":"The use of a trabecular metal acetabular component and trabecular metal augment for severe acetabular defects","volume":"21","author":"Sporer","year":"2006","journal-title":"J Arthroplasty."},{"key":"bib8-20230714","doi-asserted-by":"crossref","first-page":"201","DOI":"10.1097\/01.blo.0000150133.88271.80","article-title":"Modular porous metal augments for treatment of severe acetabular bone loss during revision hip arthroplasty","volume":"429","author":"Nehme","year":"2004","journal-title":"Clin Orthop Relat Res."},{"issue":"7","key":"bib9-20230714","doi-asserted-by":"crossref","first-page":"1059","DOI":"10.2106\/00004623-198062070-00002","article-title":"Total hip arthroplasty in protrusio acetabuli of rheumatoid arthritis","volume":"62","author":"Ranawat","year":"1980","journal-title":"J Bone Joint Surg Am."},{"issue":"7","key":"bib10-20230714","doi-asserted-by":"crossref","first-page":"1004","DOI":"10.2106\/00004623-199607000-00004","article-title":"The effect of superior placement of the acetabular component on the rate of loosening after total hip arthroplasty","volume":"78","author":"Pagnano","year":"1996","journal-title":"J Bone Joint Surg Am."},{"issue":"1","key":"bib11-20230714","doi-asserted-by":"crossref","first-page":"33","DOI":"10.1016\/0883-5403(94)90135-X","article-title":"Acetabular defect classification and surgical reconstruction in revision arthroplasty. A 6-year follow-up evaluation","volume":"9","author":"Paprosky","year":"1994","journal-title":"J Arthroplasty."},{"key":"bib12-20230714","first-page":"20","article-title":"Radiological demarcation of cemented sockets in total hip replacement","volume":"121","author":"DeLee","year":"1976","journal-title":"Clin Orthop Relat Res."},{"key":"bib13-20230714","doi-asserted-by":"crossref","first-page":"133","DOI":"10.1097\/00003086-198503000-00017","article-title":"Clinical and roentgenographic assessment of total hip arthroplasty. 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