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International Orthopaedics
Published in: International Orthopaedics 4/2009

01-08-2009 | Original Paper

Leg axis correction with ConforMIS iForma™ (interpositional device) in unicompartmental arthritis of the knee

Authors: Franz Xaver Koeck, Lars Perlick, Christian Luring, Martin Handel, Johannes Beckmann, Oliver Linhardt, Joachim Grifka

Published in: International Orthopaedics | Issue 4/2009

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Abstract

Degeneration of the meniscus and the articular cartilage in unicompartmental osteoarthritis of the knee results in progressive deformity of the leg axis. It is the aim of this study to evaluate if a leg axis correction can be achieved by implanting a customised metallic interpositional device for the knee (ConforMIS iForma™). Before and after implanting a ConforMIS iForma™ knee implant, a radiological analysis of the leg axis deviation in the frontal plane was performed prospectively in 27 patients by evaluating anteroposterior single-leg stance radiographs. We achieved a sufficient leg axis correction with an average correction of 3.8° and an averaged small under-adjustment of 0.9° by inserting the ConforMIS iForma™ interpositional knee implant. Apart from the primary treatment objective of articular surface restitution the ConforMIS iForma™ knee implant can be reliably used to correct axis deformity occurring with unicompartmental osteoarthritis of the knee.
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Metadata
Title
Leg axis correction with ConforMIS iForma™ (interpositional device) in unicompartmental arthritis of the knee
Authors
Franz Xaver Koeck
Lars Perlick
Christian Luring
Martin Handel
Johannes Beckmann
Oliver Linhardt
Joachim Grifka
Publication date
01-08-2009
Publisher
Springer-Verlag
Published in
International Orthopaedics / Issue 4/2009
Print ISSN: 0341-2695
Electronic ISSN: 1432-5195
DOI
https://doi.org/10.1007/s00264-008-0577-0

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