Press fit fixation of cementless cups: how much stability do we need indeed?

Archives of Orthopaedic and Trauma Surgery
A RothR-A Venbrocks

Abstract

Using screws for a better primary and secondary fixation has been discussed in the literature of the recent years, although the principle of press fit has been explained as the principle of a push-button. The authors wanted to compare their own results in patients using X-rays from the postoperative course to decide if it is really safer to use screws or not. Two hundred and twenty one consecutive, not selected patients were treated with total hip arthroplasty using a cementless cup type Duraloc. They were followed up over a time of 5 years for radiological changes of the bony acetabulum around the cup ("acetabular zones" according to De Lee and Charnley). One hundred and ten cups were additionally fixed with one to three screws at the upper part in region C1, 101 cups were implanted without the use of screws. Periprosthetic changes visible on the radiographs (immediate postoperative gaps, subsequent sclerosis and radiolucent lines) were assessed according to the time of their appearance. A gap in zone C2 was seen more often immediately after operation within the group without screws (17.8% vs. 7.3%) and disappeared within the following 25 months. Within the group with screws significantly more often a gap was found in zone C1 ...Continue Reading

References

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Citations

Mar 8, 2013·Archives of Orthopaedic and Trauma Surgery·Snir HellerIsrael Dudkiewicz
Apr 2, 2009·Journal of Orthopaedic Science : Official Journal of the Japanese Orthopaedic Association·Harumoto YamadaEiichi Fukaya
Apr 14, 2011·European Journal of Medical Research·C ZilkensMarcus Jäger
Aug 29, 2013·International Orthopaedics·Sheng-Hui NiYan-Gang Zhao
Jan 23, 2014·Clinical Orthopaedics and Related Research·Mariam Al-HamadHarlan C Amstutz
Oct 1, 2014·Clinical Biomechanics·Farid AmiroucheRiad Barmada
Jun 7, 2008·The Journal of Arthroplasty·Mark A KlaassenDelfino Carranza Guzman
Mar 24, 2009·The Journal of Arthroplasty·Richard IorioMichael S Thompson
Oct 23, 2012·Acta Orthopaedica·Dean PakvisMaarten Spruit
May 31, 2014·Acta Orthopaedica·Marcus R StreitChristian Merle
Nov 19, 2013·The Journal of Arthroplasty·Keith A FehringWilliam A Jiranek
May 7, 2013·The Journal of Arthroplasty·Vanesa RosPere Torner
Sep 27, 2014·The Journal of Arthroplasty·William G BlakeneyRiaz J K Khan
Nov 26, 2014·European Journal of Orthopaedic Surgery & Traumatology : Orthopédie Traumatologie·Tomonori TabataHiroshi Tsumura
Oct 6, 2017·World Journal of Orthopedics·Murad PepeCem Nuri Aktekin
Sep 10, 2011·Clinical Orthopaedics and Related Research·Charles A EnghC Anderson Engh
Jul 15, 2011·Haemophilia : the Official Journal of the World Federation of Hemophilia·D CzepaT Hilberg
May 12, 2012·Clinical Orthopaedics and Related Research·Eduardo García-ReyAna Cruz-Pardos
Feb 15, 2020·The Journal of International Medical Research·Chen FeiKun Zhang
Nov 3, 2009·The Journal of Bone and Joint Surgery. British Volume·P ZenzW Schwagerl
Feb 7, 2017·Hip International : the Journal of Clinical and Experimental Research on Hip Pathology and Therapy·Eduardo García-Rey

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