{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,3]],"date-time":"2025-10-03T17:38:34Z","timestamp":1759513114145},"reference-count":20,"publisher":"SLACK, Inc.","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Orthopedics"],"published-print":{"date-parts":[[2015,3]]},"abstract":"<jats:p>This prospective study investigated revision after modular short stem implantation. Results are presented for 2 different types of neck adapters (titanium and cobalt-chromium [CoCr]). Eighty-five patients with titanium adapters and 87 patients with CoCr adapters underwent follow-up examination after an average of 5.7 and 5.2 years, respectively. Mean patient age was 57 years in both groups. Indications were primary osteoarthritis (80%), cup dysplasia (14%), and other (6%). Mean Harris Hip Scores were 98 and 99 points (titanium and CoCr groups, respectively). Ninety percent and 96% of patients were very satisfied or satisfied (titanium and CoCr groups, respectively); 3% of patients in both groups were dissatisfied. Pain decreased from visual analog scale score 7 and 6 preoperatively to 0.37 and 0.15 postoperatively for the titanium and CoCr groups, respectively. No joint dislocation occurred. Six patients needed revision within the first year (2 for infection, 1 for via falsa position, and 2 for aseptic loosening in the titanium group, and 1 for aseptic loosening in the CoCr group). Nine revisions occurred due to neck adapter failure (titanium group). Primary standard stems were used in all revisions. Excluding material-related adapter failures in the titanium group, the 5-year survival rate was 94.8% (95% confidence interval [CI], 88.9\u201397.6 for titanium) and 99% (95% CI, 93.7\u201399.8 for CoCr). No radiographic signs of loosening were seen at last follow-up. Fine sclerotic lines were detected in Gruen zones 1 (17.2%) and 2 (14%), hypertrophies in zone 3 (4.3%), and periprosthetic cancellous bone compressions in zone 6 (75.8%). No adapter fractures occurred for CoCr components. The treatment and anchoring system of the short stem studied yielded good results and allowed revision using standard stems in all patients.<\/jats:p>","DOI":"10.3928\/01477447-20150215-54","type":"journal-article","created":{"date-parts":[[2015,4,1]],"date-time":"2015-04-01T14:39:25Z","timestamp":1427899165000},"source":"Crossref","is-referenced-by-count":11,"title":["Comparative 5-Year Results of Short Hip Total Hip Arthroplasty with Ti- or CoCr-Neck Adapters"],"prefix":"10.3928","volume":"38","author":[{"given":"Ralf H.","family":"Wittenberg","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Reinhard","family":"Steffen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"2308","reference":[{"key":"e_1_3_1_2_2","doi-asserted-by":"publisher","DOI":"10.3109\/17453674.2014.908343"},{"key":"e_1_3_1_3_2","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.82B7.10420"},{"key":"e_1_3_1_4_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00264-010-1020-x"},{"issue":"4","key":"e_1_3_1_5_2","first-page":"398","article-title":"Is there a bone-preserving bone remodelling in short-stem prosthesis? DEXA analysis with the Nanos total hip arthroplasty [in German]","volume":"148","author":"G\u00f6tze C","year":"2010","unstructured":"G\u00f6tze C, Ehrenbrink J, Ehrenbrink H. Is there a bone-preserving bone remodelling in short-stem prosthesis? DEXA analysis with the Nanos total hip arthroplasty [in German]. Z Orthop Unfall. 2010; 148(4):398\u2013405.","journal-title":"Z Orthop Unfall"},{"key":"e_1_3_1_6_2","doi-asserted-by":"publisher","DOI":"10.1055\/s-0030-1270710"},{"key":"e_1_3_1_7_2","doi-asserted-by":"publisher","DOI":"10.4081\/or.2013.e34"},{"key":"e_1_3_1_8_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00264-013-2212-y"},{"issue":"8","key":"e_1_3_1_9_2","first-page":"474","article-title":"Metha modular short stem prosthesis [in German]","volume":"42","author":"B\u00fccking PK","year":"2006","unstructured":"B\u00fccking PK, Feldmann PH, Wittenberg RH. Metha modular short stem prosthesis [in German]. Orthop\u00e4dische Praxis. 2006; 42(8):474\u2013478.","journal-title":"Orthop\u00e4dische Praxis"},{"key":"e_1_3_1_10_2","doi-asserted-by":"publisher","DOI":"10.4081\/or.2013.e4"},{"key":"e_1_3_1_11_2","doi-asserted-by":"publisher","DOI":"10.1186\/1471-2474-11-3"},{"key":"e_1_3_1_12_2","first-page":"97","volume-title":"Acutalit\u00e9s en Biomat\u00e9riaux","author":"Fink U","year":"1996","unstructured":"Fink U. Plasmapore: a plasma-sprayed micorporous titanium coating to improve the long term stability. In: , Mainard D., ed. Acutalit\u00e9s en Biomat\u00e9riaux. Vol III. Paris, France: Romillat; 1996:97\u2013104."},{"key":"e_1_3_1_13_2","doi-asserted-by":"publisher","DOI":"10.1002\/jbm.b.30762"},{"key":"e_1_3_1_14_2","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-196951040-00012"},{"issue":"257","key":"e_1_3_1_15_2","first-page":"107","article-title":"Roentgenographic assessment of the biologic fixation of porous-surfaced femoral components","author":"Engh CA","year":"1990","unstructured":"Engh CA, Massin P, Suthers KE. Roentgenographic assessment of the biologic fixation of porous-surfaced femoral components. 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Clin Orthop Relat Res. 1979; 141:17\u201327.","journal-title":"Clin Orthop Relat Res"},{"key":"e_1_3_1_17_2","unstructured":"Australian Orthopaedic Association National Joint Replacement Registry Annual report 2013"},{"key":"e_1_3_1_18_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00402-012-1537-0"},{"key":"e_1_3_1_19_2","doi-asserted-by":"publisher","DOI":"10.5301\/HIP.2011.8658"},{"key":"e_1_3_1_20_2","doi-asserted-by":"publisher","DOI":"10.1055\/s-0029-1185899"},{"key":"e_1_3_1_21_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0883-5403(88)80076-7"}],"container-title":["Orthopedics"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.healio.com\/doiresolver?doi=10.3928\/01477447-20150215-54","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,5,2]],"date-time":"2023-05-02T23:34:57Z","timestamp":1683070497000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.healio.com\/doi\/10.3928\/01477447-20150215-54"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2015,3]]},"references-count":20,"journal-issue":{"issue":"3","published-print":{"date-parts":[[2015,3]]}},"alternative-id":["10.3928\/01477447-20150215-54"],"URL":"https:\/\/doi.org\/10.3928\/01477447-20150215-54","relation":{},"ISSN":["0147-7447","1938-2367"],"issn-type":[{"value":"0147-7447","type":"print"},{"value":"1938-2367","type":"electronic"}],"subject":[],"published":{"date-parts":[[2015,3]]}}}