{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T02:23:52Z","timestamp":1760235832663,"version":"build-2065373602"},"reference-count":31,"publisher":"MDPI AG","issue":"19","license":[{"start":{"date-parts":[[2021,9,28]],"date-time":"2021-09-28T00:00:00Z","timestamp":1632787200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>Purpose: The topical application of tranexamic acid (TXA) into the joint space during total joint arthroplasty (TJA) with no increase of complications, has been widely reported. We investigated the influence of TXA on antibiotic release, activity of the released antibiotic against a clinical isolate of S. aureus, and compressive strength of a widely used commercially prepared gentamicin-loaded cement brand (PALACOS R + G). Method: 12 bone cement cylinders (diameter and height = 6 and 12 mm, respectively) were molded. After curing in air for at least 1 h, six of the cylinders were completely immersed in 5 mL of fetal calf serum (FCS) and the other six were completely immersed in a solution consisting of 4.9 mL of FCS and 0.1 mL (10 mg) of TXA. Gentamicin elution tests were performed over 7 d. Four hundred \u00b5L of the gentamicin eluate were taken every 24 h for the first 7 d without renewing the immersion fluid. The gentamicin concentration was determined in a clinical analyzer using a homogeny enzyme immuno-assay. The antimicrobial activity of the eluate, obtained after day 7, was tested. An agar diffusion test regime was used with Staphylococcus aureus. Bacteria were grown in a LB medium and plated on LB agar plates to get a bacterial lawn. Fifty \u00b5L of each eluate were pipetted on 12-mm diameter filter discs, which were placed in the middle of the agar gel. After 24 h of cultivation at 37 \u00b0C, the zone of inhibition (ZOI) for each specimen was measured. The compressive strength of the cements was determined per ISO 5833. Results: At each time point in the gentamicin release test, the difference in gentamicin concentration, obtained from specimens immersed in the FCS solution only and those immersed in the FCS + TXA solution was not significant (p = 0.055\u20130.522). The same trend was seen in each of the following parameters, after 7 d of immersion: (1) Cumulative gentamicin concentration (p &lt; 0.297); (2) gentamicin activity against S. aureus (strongly visible); (3) ZOI size (mostly &gt; 20 mm) (p = 0.631); and (4) compressive strength (p = 0.262). Conclusions: For the PALACOS R + G specimens, the addition of TXA to FCS does not produce significant decreases in gentamicin concentration, in the activity of the gentamicin eluate against a clinical isolate of S. aureus, the zone of inhibition of S. aureus, and in the compressive strength of the cement, after 7 d of immersion in the test solution.<\/jats:p>","DOI":"10.3390\/ma14195639","type":"journal-article","created":{"date-parts":[[2021,9,28]],"date-time":"2021-09-28T21:38:09Z","timestamp":1632865089000},"page":"5639","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Influence of Tranexamic Acid on Elution Characteristics and Compressive Strength of Antibiotic-Loaded PMMA-Bone Cement with Gentamicin"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8401-1318","authenticated-orcid":false,"given":"Martin","family":"L\u00fcdemann","sequence":"first","affiliation":[{"name":"Department of Orthopaedic Surgery, University of Wuerzburg, Koenig-Ludwig-Haus, Brettreich-Str. 11, 97074 Wuerzburg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Axel","family":"Jakuscheit","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, University of Wuerzburg, Koenig-Ludwig-Haus, Brettreich-Str. 11, 97074 Wuerzburg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8459-4392","authenticated-orcid":false,"given":"Andrea","family":"Ewald","sequence":"additional","affiliation":[{"name":"Department for Functional Materials in Medicine and Dentistry, University of Wuerzburg, Pleicherwall 2, 97070 Wuerzburg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Leena","family":"Fr\u00fchmann","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, University of Wuerzburg, Koenig-Ludwig-Haus, Brettreich-Str. 11, 97074 Wuerzburg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Stefanie","family":"H\u00f6lscher-Doht","sequence":"additional","affiliation":[{"name":"Department of Trauma-, Hand-, Plastic- and Reconstructive Surgery, University of Wuerzburg, Oberduerrbacher-Str. 6, 97080 Wuerzburg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4982-6594","authenticated-orcid":false,"given":"Maximilian","family":"Rudert","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, University of Wuerzburg, Koenig-Ludwig-Haus, Brettreich-Str. 11, 97074 Wuerzburg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8215-5126","authenticated-orcid":false,"given":"Sebastian Philipp","family":"von Hertzberg-Boelch","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, University of Wuerzburg, Koenig-Ludwig-Haus, Brettreich-Str. 11, 97074 Wuerzburg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2021,9,28]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"518","DOI":"10.1302\/0301-620X.46B3.518","article-title":"The Bonding Of Prostheses To Bone By Cement","volume":"46","author":"Charnley","year":"1964","journal-title":"J. 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Med., 9.","DOI":"10.3390\/jcm9123880"}],"container-title":["Materials"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1996-1944\/14\/19\/5639\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T07:06:14Z","timestamp":1760166374000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1996-1944\/14\/19\/5639"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,9,28]]},"references-count":31,"journal-issue":{"issue":"19","published-online":{"date-parts":[[2021,10]]}},"alternative-id":["ma14195639"],"URL":"https:\/\/doi.org\/10.3390\/ma14195639","relation":{},"ISSN":["1996-1944"],"issn-type":[{"type":"electronic","value":"1996-1944"}],"subject":[],"published":{"date-parts":[[2021,9,28]]}}}