{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,10]],"date-time":"2026-02-10T07:08:10Z","timestamp":1770707290179,"version":"3.49.0"},"reference-count":36,"publisher":"SLACK, Inc.","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Orthopedics"],"published-print":{"date-parts":[[2018,1]]},"abstract":"<jats:p>\n            The aim of this study was to determine how an ultra-short anatomic uncemented stem vs a diaphyseal filling five-eighths porous coated uncemented femoral stem (conventional stem) affects the survival of primary total hip arthroplasties in octogenarians. The current study consisted of 52 patients (55 hips) in the ultra-short stem group (mean age, 85.5\u00b15.3 years) and 61 patients (72 hips) in the diaphyseal (conventional) stem group (mean age, 84.1\u00b14.8 years). The predominant diagnosis was osteoarthritis, followed by osteonecrosis of the femoral head, in both groups. Average follow-up was 6.1 years (range, 5\u20138 years) in the ultra-short stem group and 6.3 years (range, 5\u20139 years) in the conventional stem group. Pre- (41 vs 39 points) and postoperative (85 vs 86 points) Harris hip scores were similar between groups (\n            <jats:italic>P<\/jats:italic>\n            =.131 and .129, respectively). The incidence of thigh pain was 0% (0 of 52 patients) in the ultra-short stem group and 15% (9 of 61 patients) in the conventional stem group. The revision rate was 1.8% (1 hip) in the ultra-short stem group and 1.4% (1 hip) in the conventional stem group. Survivorship of the femoral stem was 98.2% in the ultra-short stem group at 6.1 years and 98.6% in the conventional stem group at 6.3 years. Ultra-short anatomic and diaphyseal filling uncemented stems obtained osseointegration in all hips. However, the prevalence of thigh pain and periprosthetic fracture were significantly higher in the patients with a conventional stem than in those with an ultra-short stem. [\n            <jats:italic>Orthopedics.<\/jats:italic>\n            2018; 41(1):28\u201334.]\n          <\/jats:p>","DOI":"10.3928\/01477447-20171106-01","type":"journal-article","created":{"date-parts":[[2017,11,14]],"date-time":"2017-11-14T14:47:04Z","timestamp":1510670824000},"page":"28-34","source":"Crossref","is-referenced-by-count":5,"title":["Ultra-Short Versus Conventional Uncemented Stems for Hip Replacement in Octogenarians"],"prefix":"10.3928","volume":"41","author":[{"given":"Young-Hoo","family":"Kim","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jang-Won","family":"Park","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jun-Shik","family":"Kim","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"2308","reference":[{"key":"e_1_3_1_2_2","doi-asserted-by":"publisher","DOI":"10.1007\/s12306-013-0296-6"},{"key":"e_1_3_1_3_2","doi-asserted-by":"publisher","DOI":"10.3928\/0147-7447-20030901-16"},{"key":"e_1_3_1_4_2","doi-asserted-by":"publisher","DOI":"10.1007\/s11999-014-3641-7"},{"key":"e_1_3_1_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jbiomech.2010.10.012"},{"key":"e_1_3_1_6_2","doi-asserted-by":"publisher","DOI":"10.3928\/0147-7447-20030901-15"},{"key":"e_1_3_1_7_2","unstructured":"Australian Orthopaedic Association National Joint Replacement Registry. 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