PMID- 33801479 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20210408 IS - 2077-0383 (Print) IS - 2077-0383 (Electronic) IS - 2077-0383 (Linking) VI - 10 IP - 5 DP - 2021 Mar 2 TI - Midterm Survivorship of an Uncemented Hydroxyapatite-Coated Titanium Femoral Component and Clinically Meaningful Outcomes in Patients Older Than 75 Years. LID - 10.3390/jcm10051019 [doi] LID - 1019 AB - PURPOSE: It remains controversial whether cementless femoral components are safe in elderly patients. The aim of this study was (1) to determine the stem survival rate in patients >75 years of age who were treated with an uncemented femoral component and (2) to report clinically significant results on a mid-term follow-up. METHODS: 107 total hip arthroplasties (THA) were retrospectively evaluated in 97 patients over 75 years of age (mean age 78 years, range 75-87) treated with an uncemented femoral stem. The minimum follow-up was five years (mean 6.4 years, range 5-8). Stem survival rates, clinically meaningful outcomes, and incidence of complications were evaluated. RESULTS: Kaplan-Meier survival analysis, with the endpoint revision for any reason, showed a 6.4-year survival rate of 98% (95% CI, 95-99%; 63 hips at risk). The survival rates were comparable for male and female patients (log-rank test, p = 0.58). The modified Harris Hip Score (mHHS) improved from 42.2 (12 to 85) points to 81.1 (22 to 97) points (p < 0.0001). Mid-term minimal clinically important difference (MCID), substantial clinical benefit (SCB), and patient acceptable symptomatic state (PASS) were 25, 84, and 70, respectively. CONCLUSION: An uncemented stem is a viable option in patients over 75 years with good clinical outcomes and survivorship. Periprosthetic fractures were not a relevant failure mechanism with the stem used. FAU - Zimmerer, Alexander AU - Zimmerer A AD - ARCUS Sportklinik, Rastatterstr. 17-19, 75179 Pforzheim, Germany. AD - Department of Orthopaedics and Orthopaedic Surgery, University Medicine Greifswald, Ferdinand-Sauerbruch-Strasse, 17475 Greifswald, Germany. FAU - Navas, Luis AU - Navas L AD - ARCUS Sportklinik, Rastatterstr. 17-19, 75179 Pforzheim, Germany. FAU - Kinkel, Stefan AU - Kinkel S AD - ARCUS Sportklinik, Rastatterstr. 17-19, 75179 Pforzheim, Germany. FAU - Weiss, Stefan AU - Weiss S AD - ARCUS Sportklinik, Rastatterstr. 17-19, 75179 Pforzheim, Germany. FAU - Hauschild, Matthias AU - Hauschild M AD - ARCUS Sportklinik, Rastatterstr. 17-19, 75179 Pforzheim, Germany. FAU - Streit, Marcus AU - Streit M AD - ARCUS Sportklinik, Rastatterstr. 17-19, 75179 Pforzheim, Germany. LA - eng PT - Journal Article DEP - 20210302 PL - Switzerland TA - J Clin Med JT - Journal of clinical medicine JID - 101606588 PMC - PMC7958839 OTO - NOTNLM OT - Cementless THA OT - MCID OT - PASS OT - SCB OT - hip replacement OT - octogenarians OT - old patient OT - survival COIS- Hauschild received royalties from Link and DePuy. All other authors report no conflict of interests. EDAT- 2021/04/04 06:00 MHDA- 2021/04/04 06:01 PMCR- 2021/03/02 CRDT- 2021/04/03 01:08 PHST- 2021/01/19 00:00 [received] PHST- 2021/02/17 00:00 [revised] PHST- 2021/02/24 00:00 [accepted] PHST- 2021/04/03 01:08 [entrez] PHST- 2021/04/04 06:00 [pubmed] PHST- 2021/04/04 06:01 [medline] PHST- 2021/03/02 00:00 [pmc-release] AID - jcm10051019 [pii] AID - jcm-10-01019 [pii] AID - 10.3390/jcm10051019 [doi] PST - epublish SO - J Clin Med. 2021 Mar 2;10(5):1019. doi: 10.3390/jcm10051019.