{"title":"Cementing technique of the femur in primary THA: the French paradox.","authors":"Pierre Laboudie, Moussa Hamadouche","doi":"10.1530/EOR-2025-0053","DOIUrl":null,"url":null,"abstract":"<p><p>The French paradox cementing technique encompasses a canal filling highly polished stem with a thin (<1 mm) cement mantle. The technique has been developed by Pr Marcel Kerboull in the late 1960s after he observed the patterns of debonding of the original Charnley stem. The key point of the technique is based upon removal of the metaphyseal cancellous bone (with hollow reamers or aggressive broaches) especially at the supero-medial region. Only two stems have been validated with this technique: the Charnley-Kerboull (CK) and the Ceraver Osteal stem, both of which are collared. This technique is neither a taper slip (the stem does not subside at long-term follow-up) nor a composite beam (a highly polished stem is used). A 12% shortened stem CK has shown similar results to the standard-length stem, including the absence of stem subsidence. Combined with the Hueter anterior approach, this technique has demonstrated one of the lowest femoral PPF rate in elderly patients in the literature.</p>","PeriodicalId":48598,"journal":{"name":"Efort Open Reviews","volume":"10 6","pages":"361-368"},"PeriodicalIF":4.0000,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12139596/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Efort Open Reviews","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1530/EOR-2025-0053","RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ORTHOPEDICS","Score":null,"Total":0}
引用次数: 0
Abstract
The French paradox cementing technique encompasses a canal filling highly polished stem with a thin (<1 mm) cement mantle. The technique has been developed by Pr Marcel Kerboull in the late 1960s after he observed the patterns of debonding of the original Charnley stem. The key point of the technique is based upon removal of the metaphyseal cancellous bone (with hollow reamers or aggressive broaches) especially at the supero-medial region. Only two stems have been validated with this technique: the Charnley-Kerboull (CK) and the Ceraver Osteal stem, both of which are collared. This technique is neither a taper slip (the stem does not subside at long-term follow-up) nor a composite beam (a highly polished stem is used). A 12% shortened stem CK has shown similar results to the standard-length stem, including the absence of stem subsidence. Combined with the Hueter anterior approach, this technique has demonstrated one of the lowest femoral PPF rate in elderly patients in the literature.
期刊介绍：
EFORT Open Reviews publishes high-quality instructional review articles across the whole field of orthopaedics and traumatology. Commissioned, peer-reviewed articles from international experts summarize current knowledge and practice in orthopaedics, with the aim of providing systematic coverage of the field. All articles undergo rigorous scientific editing to ensure the highest standards of accuracy and clarity.
This continuously published online journal is fully open access and will provide integrated CME. It is an authoritative resource for educating trainees and supports practising orthopaedic surgeons in keeping informed about the latest clinical and scientific advances.
One print issue containing a selection of papers from the journal will be published each year to coincide with the EFORT Annual Congress.
EFORT Open Reviews is the official journal of the European Federation of National Associations of Orthopaedics and Traumatology (EFORT) and is published in partnership with The British Editorial Society of Bone & Joint Surgery.
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