{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,17]],"date-time":"2026-06-17T21:59:36Z","timestamp":1781733576340,"version":"3.54.5"},"reference-count":43,"publisher":"SLACK, Inc.","issue":"9","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Orthopedics"],"published-print":{"date-parts":[[2012,9]]},"abstract":"<jats:p>The higher failure rate of total hip arthroplasty (THA) in young, active patients remains a challenge for surgeons. Recently, larger-diameter femoral heads combined with an alumina matrix composite ceramic (BIOLOX Delta; CeramTec AG, Plochingen, Germany) articulation was developed to improve implant longevity and meet patients\u2019 activity demands while reducing the risk of component-related complications. The purpose of this study was to determine whether this new device may provide advantages for young, active patients. A prospective, randomized, controlled trial was conducted on 93 patients (113 THAs) with more than 3 years of follow-up. Patients were randomly divided into a study group (51 THAs) with a 36-mm Delta ceramic-on-ceramic (COC) articulation and a control group (62 THAs) with a common-sized alumina ceramic head on polyethylene liner (COP) articulation. Clinical and radiographic results were collected to compare the outcomes and complications, including implant-related failures, osteolysis, and noises. The large-diameter Delta COC articulation provided greater range of motion improvement (6.1\u00b0 more), similar Harris Hip Scores, and similar complication rates compared with the alumina COP articulation. This study suggests that in the short term, the large-diameter Delta COC articulation results in better range of motion with no higher complication rates; however, mid-term (8\u201310 years) or longer follow-up is necessary to determine its superiority in young, active patients.<\/jats:p>","DOI":"10.3928\/01477447-20120822-14","type":"journal-article","created":{"date-parts":[[2012,9,6]],"date-time":"2012-09-06T16:52:13Z","timestamp":1346950333000},"source":"Crossref","is-referenced-by-count":36,"title":["Large-diameter Delta Ceramic-on-ceramic Versus Common-sized Ceramic-on-polyethylene Bearings in THA"],"prefix":"10.3928","volume":"35","author":[{"given":"Pengde","family":"Cai","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yihe","family":"Hu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jie","family":"Xie","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"2308","reference":[{"key":"e_1_3_1_2_2","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-199801000-00010"},{"key":"e_1_3_1_3_2","doi-asserted-by":"publisher","DOI":"10.1097\/00003086-199912000-00009"},{"issue":"1","key":"e_1_3_1_4_2","first-page":"51","article-title":"Use of ceramics in total hip replacement","volume":"17","author":"Lang JE","year":"2008","unstructured":"Lang JE, Whiddon DR, Smith EL, Salyapongse AK. 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