Multi-state models and arthroplasty histories after unilateral total hip arthroplasties: introducing the Summary Notation for Arthroplasty Histories.

Acta Orthopaedica
M H GillamS E Graves

Abstract

An increasing number of patients have several joint replacement procedures during their lifetime. We investigated the use and suitability of multi-state model techniques in providing a more comprehensive analysis and description of complex arthroplasty histories held in arthroplasty registries than are allowed for with traditional survival methods. We obtained data from the Australian Orthopaedic Association National Joint Replacement Registry on patients (n = 84,759) who had undergone a total hip arthroplasty for osteoarthritis in the period 2002-2008. We set up a multi-state model where patients were followed from their first recorded arthroplasty to several possible states: revision of first arthroplasty, either a hip or knee as second arthroplasty, revision of the second arthroplasty, and death. The Summary Notation for Arthroplasty Histories (SNAH) was developed in order to help to manage and analyze this type of data. At the end of the study period, 12% of the 84,759 patients had received a second hip, 3 times as many as had received a knee. The estimated probabilities of having received a second arthroplasty decreased with age. Males had a lower transition rate for receiving a second arthroplasty, but a higher mortality ...Continue Reading

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Citations

Apr 16, 2015·PloS One·Christine EulenburgKarl Wegscheider
Jun 22, 2013·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Kharma C Foucher, Markus A Wimmer
Feb 17, 2018·Biometrics·Tobias BluhmkiJan Beyersmann
Mar 8, 2018·Lifetime Data Analysis·Tobias BluhmkiMarkus Pauly
Jun 5, 2019·Statistics in Medicine·Tobias BluhmkiUNKNOWN COMBACTE-MAGNET consortium
Aug 2, 2017·The Journal of Bone and Joint Surgery. American Volume·Stéphanie L van der PasMarta Fiocco

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Methods Mentioned

BETA
total hip arthroplasties
total hip arthroplasty
total hip prosthesis

Software Mentioned

R
SNAH
R Development Core Team
mstate

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