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The effect of proximal tibial corrective osteotomy on menisci, tibia and tarsal bones: a finite element model study of tibia vara
Author(s) -
Atmaca Halil,
Özkan Arif,
Mutlu İbrahim,
Çelik Talip,
Ugur Levent,
Kisioglu Yasin
Publication year - 2014
Publication title -
the international journal of medical robotics and computer assisted surgery
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.556
H-Index - 53
eISSN - 1478-596X
pISSN - 1478-5951
DOI - 10.1002/rcs.1528
Subject(s) - tibia , tarsal bone , medicine , high tibial osteotomy , anatomy , orthodontics , osteotomy , materials science , osteoarthritis , alternative medicine , ankle , pathology
Background Proximal tibial open wedge osteotomy (PTO) is a corrective operation used in the surgery of lower extremities and is applied to patients with varus deformities for sufficient correction. The aim of the study was to evaluate whether the PTO can achieve decreased stress‐bearing on the tibia and tarsal bones in addition to correcting the mechanical axis of the lower limb in patients with tibia vara. Methods Three‐dimensional (3D) solid modelling of the lower extremity was carried out using computed tomography (CT) and magnetic resonance (MR)‐containing images of all of the bony elements and non‐bony structures. PTO was applied to the obtained deformed model in the computer environment and the correction was carried out. Results Stress distributions in menisci, tibia and tarsal bones were calculated. With respect to loading on the tarsal bones, the maximum equivalent stresses on all bones decreased except for the navicula in the PTO‐simulated model in the current study. Conclusion These results clearly indicate that PTO can achieve decreased stresses on the tarsal bones in patients with tibia vara. Copyright © 2013 John Wiley & Sons, Ltd.