Load-induced deformation of the tibia and its effect on implant loosening detection

M. A. ter Wee, J. G. G. Dobbe, G. S. Buijs, A. J. Kievit, M. U. Schafroth, M. Maas, L. Blankevoort, G. J. Streekstra · 2023

Read Load-induced deformation of the tibia and its effect on implant loosening detection by M. A. ter Wee, J. G. G. Dobbe, G. S. Buijs, A. J. Kievit, M. U. Schafroth, M. Maas, L. Blankevoort, G. J. Streekstra (2023) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-10709436.txt.

Description

Ter Wee and colleagues test in twenty twenty-three a hidden flaw in scans used to spot loose knee implants. The scan method loads the shin bone from side to side and measures implant shift. But load also bends the bone itself, which could inflate the shift reading and blur the line between loose and fixed implants.

Using donor legs with knee implants, they scanned each leg first loose, then cemented fixed. The bone's top moved notably against its base under load. Shift readings against the whole bone overstated movement for fixed implants. Measuring against the top part of the bone alone cut that error. Telling loose from fixed improved once bone bending was taken into account.

Catalog record

CREATORM. A. ter Wee, J. G. G. Dobbe, G. S. Buijs, A. J. Kievit, M. U. Schafroth, M. Maas, L. Blankevoort, G. J. Streekstra
YEAR2023
COLLECTIONPAPERS
FORMATTXT
FILE SIZE43 KB
VERSION1.0
LICENSECC BY 4.0
RIGHTSCC BY
SOURCEEurope PMC

Source: https://europepmc.org/articles/PMC10709436

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