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Erschienen in: European Orthopaedics and Traumatology 1/2014

01.03.2014 | Review Article

Simulating osteoarthritis: the effect of the changing thickness of articular cartilage on the kinematics and pathological bone-to-bone contact in a hip joint with femoroacetabular impingement

verfasst von: Radhakrishna Suppanee, Mahshid Yazdifar, Mahmoud Chizari, Ibrahim Esat, Nikolaos V. Bardakos, Richard E. Field

Erschienen in: European Orthopaedics and Traumatology | Ausgabe 1/2014

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Abstract

Femoroacetabular impingement (FAI) is a pathomechanical process by which the human hip can fail. The effect of attenuated cartilage on the kinematics and the pathological bone-to-bone contact of an osteoarthritic hip joint with FAI are still unknown. The current study is aiming to simulate osteoarthritis of a cam-type femoral head with cartilage thinning of varying severity. A three-dimensional model of the left hip joint of a male patient diagnosed with FAI was obtained from preoperative computerised tomography data using density segmentation techniques. The kinematics of FAI was simulated using a finite element method. As the acetabulum and femur came into contact, the penetrations were detected, and the contact constraints were applied according to the penalty constraint enforcement method. The translation and rotation parameters were defined in a single step for each one of three cases: healthy cartilage and 2 mm (one-sided thinning) and 4 mm (two-sided thinning) worn out articular cartilages. The results of the analysis show that thinning of the cartilage at the hip joint adversely affects impingement, as a range of motion decreased with progressive thinning of the articular cartilage. In the presence of attenuated cartilage, equating osteoarthritis, the pathomorphology of the cam lesion, likely determines the extent of damage on the rim of the acetabulum, as well.
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Metadaten
Titel
Simulating osteoarthritis: the effect of the changing thickness of articular cartilage on the kinematics and pathological bone-to-bone contact in a hip joint with femoroacetabular impingement
verfasst von
Radhakrishna Suppanee
Mahshid Yazdifar
Mahmoud Chizari
Ibrahim Esat
Nikolaos V. Bardakos
Richard E. Field
Publikationsdatum
01.03.2014
Verlag
Springer Berlin Heidelberg
Erschienen in
European Orthopaedics and Traumatology / Ausgabe 1/2014
Print ISSN: 1867-4569
Elektronische ISSN: 1867-4577
DOI
https://doi.org/10.1007/s12570-013-0196-0

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