Authors: Patrick Sadoghi Grant Roush Norbert Kastner Andreas Leithner Christof Sommitsch Tarun Goswami
Publish Date: 2014/08/01
Volume: 134, Issue: 10, Pages: 1361-1368
Abstract
It is imperative to understand the most common failure modes of total ankle arthroplasty TAA to appropriately allocate the resources healthcare costs enhancing surgical treatment methods and improve design and longevity of the implant The objective of this study was to investigate the primary mode or modes of failure Loose talar component loose tibial component dislocation instability misalignment deep infection Fracture near implant Pain defect polyethylene PE other and missing information of TAA implants so these failure mode/modes can be targeted for future improvementThe Norwegian Total Hip Arthroplasty Register 2008 was chosen as the primary source of data since the register have been in existence for 20 years and also gives more specific failure modes than other registries Tukey–Kramer method was applied to Norwegian Arthroplasty RegisterAfter the application of the Tukey–Kramer method it is evident that there is no significant difference between any of the failure modes that are pertinent to the ankle However there is significant evidence that the number of ankle arthroplasties are increasing with timeSince there is no statistical evidence showing which failure mode contributes most to revision surgeries it is concluded that more information/data is needed to further investigate failure modes in ankle arthroplasties Since the numbers of such surgeries are increasing sufficient data should become available in time
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