Load Sharing and Ligament Strains in Balanced, Overstuffed and Understuffed UKA. A Validated Finite Element Analysis

Innocenti B., Bilgen O. F., Labey L., van Lenthe G. H., Sloten J. V., Catani F.

JOURNAL OF ARTHROPLASTY, cilt.29, sa.7, ss.1491-1498, 2014 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 29 Sayı: 7
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1016/j.arth.2014.01.020
  • Dergi Adı: JOURNAL OF ARTHROPLASTY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1491-1498
  • Bursa Uludağ Üniversitesi Adresli: Evet

Özet

The aim of this study was to quantify the effects of understuffing and overstuffing UKA on bone stresses, load distribution and ligament strains. For that purpose, a numerical knee model of a cadaveric knee was developed and was validated against experimental measurements on that same knee. Good agreement was found among the numerical and experimental results. This study showed that, even if a medial UKA is well-aligned with normal soft tissue tension and with correct thickness of the tibia component, it induces a stiffness modification in the joint that alters the load distribution between the medial and lateral compartments, the bone stress and the ligament strain potentially leading to an osteoarthritic progression. (C) 2014 Elsevier Inc. All rights reserved.