The mean anatomical shape of the tibial plateau at the knee arthroplasty resection level: an investigation using MRI

Hartel, MJ; Loosli, Y; Gralla, J; Kohl, S; Hoppe, S; Röder, C; Eggli, S (2009). The mean anatomical shape of the tibial plateau at the knee arthroplasty resection level: an investigation using MRI. The knee, 16(6), pp. 452-7. Amsterdam: Elsevier 10.1016/j.knee.2009.04.011

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Clinical assessments after Total Knee Arthroplasty (TKA) show persisting pain after implantation in over 20% of patients. Impingement of soft tissue around the knee, due to imprecise geometry of the tibial implant, can be one reason for persisting ailment. Two hundred and thirty seven MRI scans were evaluated using an active contour detection algorithm (snake) to obtain a high-resolution mean anatomical shape of the tibial plateau. Differences between female and male, older and younger (<or=40/>40) and left and right averaged shapes were determined. The shapes obtained were asymmetric throughout. Absolute differences between the subgroups fell short of inter-individual variations represented by calculated one-sigma confidence intervals. Our results indicate that a differentiation in TKA tibial plateau design by gender, age, or side is of minor relevance.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of Orthopaedic, Plastic and Hand Surgery (DOPH) > Clinic of Orthopaedic Surgery
04 Faculty of Medicine > Department of Radiology, Neuroradiology and Nuclear Medicine (DRNN) > Institute of Diagnostic and Interventional Neuroradiology

UniBE Contributor:

Hartel, Maximilian Johannes; Gralla, Jan; Röder, Christoph and Eggli, Stefan

ISSN:

0968-0160

ISBN:

19467875

Publisher:

Elsevier

Language:

English

Submitter:

Factscience Import

Date Deposited:

04 Oct 2013 15:08

Last Modified:

27 Apr 2017 10:41

Publisher DOI:

10.1016/j.knee.2009.04.011

PubMed ID:

19467875

Web of Science ID:

000271822200007

URI:

https://boris.unibe.ch/id/eprint/29624 (FactScience: 155716)

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