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The effect of a patellar brace on three-dimensional patellar kinematics in patients with lateral patellofemoral osteoarthritis  E.J. McWalter, D.J. Hunter,

Published byJoonas Saarinen Modified over 5 years ago

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Presentation on theme: "The effect of a patellar brace on three-dimensional patellar kinematics in patients with lateral patellofemoral osteoarthritis  E.J. McWalter, D.J. Hunter,"— Presentation transcript:

1 The effect of a patellar brace on three-dimensional patellar kinematics in patients with lateral patellofemoral osteoarthritis  E.J. McWalter, D.J. Hunter, W.F. Harvey, P. McCree, K.A. Hirko, D.T. Felson, D.R. Wilson  Osteoarthritis and Cartilage  Volume 19, Issue 7, Pages (July 2011) DOI: /j.joca Copyright © 2011 Osteoarthritis Research Society International Terms and Conditions

2 Fig. 1 The patellar brace (Bio Skin Q, Cropper Medical Inc., Ashland, OR, USA) evaluated in this study. Osteoarthritis and Cartilage  , DOI: ( /j.joca ) Copyright © 2011 Osteoarthritis Research Society International Terms and Conditions

3 Fig. 2 Schematic of the patient lying supine in the MRI scanner. The patient’s foot is positioned on the MRI-safe loading rig and the knee is supported by triangular foam padding. The weight is released against the patient’s foot thereby applying an axial load. Osteoarthritis and Cartilage  , DOI: ( /j.joca ) Copyright © 2011 Osteoarthritis Research Society International Terms and Conditions

4 Fig. 3 Three-dimensional patellar kinematic parameters. Rotations: flexion/extension, internal/external spin, medial/lateral tilt. Translations: proximal/distal, lateral/medial, anterior/posterior. Arrowheads indicate the positive directions. M=medial, L=lateral. Osteoarthritis and Cartilage  , DOI: ( /j.joca ) Copyright © 2011 Osteoarthritis Research Society International Terms and Conditions

5 Fig. 4 Rotational results as a function of knee flexion for patellar (A) flexion, (B) spin and (C) tilt. The lines indicate the results of the hierarchical linear random-effects model for each condition (1) no load, no brace, (2) 15% BW load, no brace, (3) no load, with brace, (4) 15% BW load, with brace. The raw data points are included and are colored according to condition. The data were scaled to 10° of knee flexion. Osteoarthritis and Cartilage  , DOI: ( /j.joca ) Copyright © 2011 Osteoarthritis Research Society International Terms and Conditions

6 Fig. 5 Translation results as a function of knee flexion for (A) proximal, (B) lateral and (C) anterior translation. The lines indicate the results of the hierarchical linear random-effects model for each condition (1) no load, no brace, (2) 15% BW load, no brace, (3) no load, with brace, (4) 15% BW load, with brace. The raw data points are included and are colored according to condition. The data were scaled to 10° of knee flexion. Osteoarthritis and Cartilage  , DOI: ( /j.joca ) Copyright © 2011 Osteoarthritis Research Society International Terms and Conditions

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