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The role of the fibula in varus and valgus deformity of the tibia : a biomechanical study

Stufkens, S. A. and van Bergen, C. J. and Blankevoort, L. and van Dijk, C. N. and Hintermann, B. and Knupp, M.. (2011) The role of the fibula in varus and valgus deformity of the tibia : a biomechanical study. The journal of bone and joint surgery. B, British volume, Vol. 93, H. 9. pp. 1232-1239.

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Official URL: http://edoc.unibas.ch/dok/A6006434

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Abstract

It has been suggested that a supramalleolar osteotomy can return the load distribution in the ankle joint to normal. However, due to the lack of biomechanical data, this supposition remains empirical. The purpose of this biomechanical study was to determine the effect of simulated supramalleolar varus and valgus alignment on the tibiotalar joint pressure, in order to investigate its relationship to the development of osteoarthritis. We also wished to establish the rationale behind corrective osteotomy of the distal tibia. We studied 17 cadaveric lower legs and quantified the changes in pressure and force transfer across the tibiotalar joint for various degrees of varus and valgus deformity in the supramalleolar area. We assumed that a supramalleolar osteotomy which created a varus deformity of the ankle would result in medial overload of the tibiotalar joint. Similarly, we thought that creating a supramalleolar valgus deformity would cause a shift in contact towards the lateral side of the tibiotalar joint. The opposite was observed. The restricting role of the fibula was revealed by carrying out an osteotomy directly above the syndesmosis. In end-stage ankle osteoarthritis with either a valgus or varus deformity, the role of the fibula should be appreciated and its effect addressed where appropriate.
Faculties and Departments:03 Faculty of Medicine > Bereich Operative Fächer (Klinik) > Bewegungsapparat und Integument
03 Faculty of Medicine > Departement Klinische Forschung > Bereich Operative Fächer (Klinik) > Bewegungsapparat und Integument
UniBasel Contributors:Hintermann, Beat
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:British Editorial Society of Bone and Joint Surgery
ISSN:0301-620X
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:06 Dec 2013 09:35
Deposited On:06 Dec 2013 09:35

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