Femoral bone density changes after total hip arthroplasty with uncemented taper-design stem: a five year follow-up study.

International Orthopaedics
Rocco P PittoVickie B Shim

Abstract

We measured bone density (BD) changes to assess adaptive bone remodelling five years after uncemented total hip arthroplasty with taper-design femoral component using quantitative computed-tomography-assisted osteodensitometry (qCT). Nineteen consecutive patients (21 hips) with degenerative joint disease were enrolled in the study. A press-fit cup and a tapered uncemented stem ceramic-ceramic pairing were used in all patients. Serial clinical, radiological and qCT osteodensitometry assessments were performed after the index operation and at the one, two and five year follow-ups. At the latest follow-up, the clinical outcome was rated satisfactory in all hips. The radiological assessment showed signs of osteointegration with stable fixation of all cups and stems. Overall, there was evidence of a BD loss at year five (p = 0.004). We estimate that BD loss was between 2.2% and 12.1% in comparison with baseline postoperative values. Progressive loss of BD in the metaphyseal region was observed in all hips. We found unremarkable BD changes of diaphyseal cortical BD throughout the five year follow-up period. qCT osteodensitometry technology allows differentiation of cortical and cancellous BD changes over time. Periprosthetic BD chang...Continue Reading

References

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Dec 4, 2008·International Orthopaedics·Georgios Digas, Johan Kärrholm

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Citations

Dec 1, 2011·International Orthopaedics·Shinya HayashiMasahiro Kurosaka
Sep 22, 2011·International Orthopaedics·Matthias LerchChristina M Stukenborg-Colsman
Jul 17, 2014·International Orthopaedics·Alexander JahnkeBernd Alexander Ishaque
Nov 25, 2011·Journal of Orthopaedics and Traumatology : Official Journal of the Italian Society of Orthopaedics and Traumatology·Cesare FaldiniSandro Giannini
Apr 1, 2015·Orthopedics·Marek SynderMarek Drobniewski
Aug 13, 2015·BMC Musculoskeletal Disorders·Wolfram SteensAlberto Schneeberger
Dec 30, 2014·European Journal of Orthopaedic Surgery & Traumatology : Orthopédie Traumatologie·Yves Chammaï, Michel Brax
May 19, 2018·European Journal of Orthopaedic Surgery & Traumatology : Orthopédie Traumatologie·Satoshi NagoyaToshihiko Yamashita
Apr 17, 2018·EFORT Open Reviews·Charles RivièrePascal-André Vendittoli
Apr 17, 2019·European Journal of Orthopaedic Surgery & Traumatology : Orthopédie Traumatologie·Ahmed M Samy, Ahmad El-Tantawy
Nov 20, 2018·Technology and Health Care : Official Journal of the European Society for Engineering and Medicine·Philip P RoesslerDieter C Wirtz
Aug 6, 2011·Hip International : the Journal of Clinical and Experimental Research on Hip Pathology and Therapy·Cesare FaldiniSandro Giannini
Mar 17, 2021·Scientific Reports·Karen DyreborgMichael Mørk Petersen

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