{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,17]],"date-time":"2026-08-17T13:24:38Z","timestamp":1786973078657,"version":"build-2736575974"},"reference-count":46,"publisher":"MDPI AG","issue":"16","license":[{"start":{"date-parts":[[2026,8,17]],"date-time":"2026-08-17T00:00:00Z","timestamp":1786924800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100006338","name":"Zimmer Biomet","doi-asserted-by":"publisher","award":["IRU2026-02H"],"award-info":[{"award-number":["IRU2026-02H"]}],"id":[{"id":"10.13039\/100006338","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J. Clin. Med.","JCM"],"abstract":"<jats:p>Background\/Objectives: Collared triple-tapered cementless femoral stems are designed to optimize metaphyseal fit, stability, and osseointegration following total hip arthroplasty (THA). This study evaluated 90-day revision and complication rates, short-term functional recovery, and operative characteristics of a modern collared triple-tapered stem in a same-day discharge ambulatory surgery center cohort. Methods: This retrospective cohort study reviewed 525 consecutive primary direct anterior THAs performed by 15 fellowship-trained arthroplasty surgeons at one group operating across several ASCs between September 2024 and August 2025. Ninety-day all-cause revision, stem-specific revision, periprosthetic fracture, and other early postoperative complications were evaluated. Kaplan\u2013Meier estimates were used to account for variable follow-up within the 90 days. PROMs (HOOS-JR, FJS, VR-12) were collected preoperatively and at 12 weeks. Operative time was evaluated using within-surgeon analyses restricted to surgeons who used both an automated impaction device (AID) and manual impaction. Results: At a mean effective follow-up of 110 \u00b1 39 days, the 90-day Kaplan\u2013Meier revision-free estimate was 99.62% for all-cause revision and 99.81% for stem revision. Two patients (0.4%) underwent revision (one Vancouver B2 fracture; one infection treated with DAIR with stem retention). The early periprosthetic fracture rate was 0.2%. Five patients (1.0%) experienced dislocation, all of whom were managed with closed reduction. HOOS-JR improved by 28.7 points and FJS by 41.9 points at 12 weeks (both p &lt; 0.0001), with 84.2% and 85.8% MCID achievement, respectively. Seven surgeons used both techniques, contributing 384 AID and 58 manual cases to the within-surgeon analysis. AID use was not associated with operative time after accounting for surgeon (adjusted difference, 0.18 min; 95% CI, \u22122.04 to 2.39; p = 0.8764). Conclusions: This collared, triple-tapered cementless stem was associated with low 90-day revision and complication rates and clinically meaningful short-term functional improvement in a same-day discharge ambulatory population. AID use was not associated with operative time after accounting for surgeon, although the study was not powered to compare uncommon complications between impaction methods.<\/jats:p>","DOI":"10.3390\/jcm15166343","type":"journal-article","created":{"date-parts":[[2026,8,17]],"date-time":"2026-08-17T12:01:26Z","timestamp":1786968086000},"page":"6343","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Early Performance of a Collared, Triple-Tapered Cementless Femoral Stem in Primary Total Hip Arthroplasty"],"prefix":"10.3390","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2463-9680","authenticated-orcid":false,"given":"Thomas L.","family":"Bradbury","sequence":"first","affiliation":[{"name":"Total Joint Specialists, Northside Hospital Forsyth, Cumming, GA 30041, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0002-4325-6973","authenticated-orcid":false,"given":"Charlotte C.","family":"Baker","sequence":"additional","affiliation":[{"name":"Total Joint Specialists, Northside Hospital Forsyth, Cumming, GA 30041, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0001-6508-7827","authenticated-orcid":false,"given":"Zachary M.","family":"Ricciardelli","sequence":"additional","affiliation":[{"name":"Total Joint Specialists, Northside Hospital Forsyth, Cumming, GA 30041, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0008-5867-9374","authenticated-orcid":false,"given":"Evan","family":"Bilson","sequence":"additional","affiliation":[{"name":"Total Joint Specialists, Northside Hospital Forsyth, Cumming, GA 30041, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7068-5215","authenticated-orcid":false,"given":"Joseph M.","family":"Schwab","sequence":"additional","affiliation":[{"name":"Total Joint Specialists, Northside Hospital Forsyth, Cumming, GA 30041, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"George N.","family":"Guild","sequence":"additional","affiliation":[{"name":"Total Joint Specialists, Northside Hospital Forsyth, Cumming, GA 30041, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,8,17]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1662","DOI":"10.1016\/j.arth.2020.01.063","article-title":"Clinical Outcomes and Midterm Survivorship of an Uncemented Primary Total Hip Arthroplasty System","volume":"35","author":"Chaudhry","year":"2020","journal-title":"J. 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