The Contribution of the Acetabular Labrum to Hip Joint Stability: A Quantitative Analysis Using a Dynamic Three-Dimensional Robot Model

Tara F. Bonner; Robb W. Colbrunn; John J. Bottros; Amar B. Mutnal; Clay B. Greeson; Alison K. Klika; Antonie J. van den Bogert; Wael K. Barsoum

doi:10.1115/1.4030012

The Contribution of the Acetabular Labrum to Hip Joint Stability: A Quantitative Analysis Using a Dynamic Three-Dimensional Robot Model

Tara F. Bonner
, Robb W. Colbrunn
, John J. Bottros
, Amar B. Mutnal
, Clay B. Greeson
, Alison K. Klika
, Antonie J. van den Bogert
, Wael K. Barsoum

Cleveland Clinic Foundation

Research output: Contribution to journal › Article › peer-review

Abstract

The acetabular labrum provides mechanical stability to the hip joint in extreme positions where the femoral head is disposed to subluxation. We aimed to quantify the isolated labrum's stabilizing value. Five human cadaveric hips were mounted to a robotic manipulator, and subluxation potential tests were run with and without labrum. Three-dimensional (3D) kinematic data were quantified using the stability index (Colbrunn et al., 2013, "Impingement and Stability of Total Hip Arthroplasty Versus Femoral Head Resurfacing Using a Cadaveric Robotics Model," J. Orthop. Res., 31(7), pp. 1108-1115). Global and regional stability indices were significantly greater with labrum intact than after total labrectomy for both anterior and posterior provocative positions. In extreme positions, the labrum imparts significant overall mechanical resistance to hip subluxation. Regional stability contributions vary with joint orientation.

Original language	American English
Journal	Journal of Biomechanical Engineering -Transactions of the ASME
Volume	137
DOIs	https://doi.org/10.1115/1.4030012
State	Published - Jun 1 2015

Keywords

acetabular labrum; hip stability; subluxation

Disciplines

Biomechanical Engineering

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10.1115/1.4030012License: CC BY

http://biomechanical.asmedigitalcollection.asme.org/article.aspx?articleid=2203818

Cite this

Bonner, T. F., Colbrunn, R. W., Bottros, J. J., Mutnal, A. B., Greeson, C. B., Klika, A. K., van den Bogert, A. J., & Barsoum, W. K. (2015). The Contribution of the Acetabular Labrum to Hip Joint Stability: A Quantitative Analysis Using a Dynamic Three-Dimensional Robot Model. Journal of Biomechanical Engineering -Transactions of the ASME, 137. https://doi.org/10.1115/1.4030012

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title = "The Contribution of the Acetabular Labrum to Hip Joint Stability: A Quantitative Analysis Using a Dynamic Three-Dimensional Robot Model",

abstract = " The acetabular labrum provides mechanical stability to the hip joint in extreme positions where the femoral head is disposed to subluxation. We aimed to quantify the isolated labrum's stabilizing value. Five human cadaveric hips were mounted to a robotic manipulator, and subluxation potential tests were run with and without labrum. Three-dimensional (3D) kinematic data were quantified using the stability index (Colbrunn et al., 2013, {"}Impingement and Stability of Total Hip Arthroplasty Versus Femoral Head Resurfacing Using a Cadaveric Robotics Model,{"} J. Orthop. Res., 31(7), pp. 1108-1115). Global and regional stability indices were significantly greater with labrum intact than after total labrectomy for both anterior and posterior provocative positions. In extreme positions, the labrum imparts significant overall mechanical resistance to hip subluxation. Regional stability contributions vary with joint orientation.",

keywords = "acetabular labrum; hip stability; subluxation",

author = "Bonner, \{Tara F.\} and Colbrunn, \{Robb W.\} and Bottros, \{John J.\} and Mutnal, \{Amar B.\} and Greeson, \{Clay B.\} and Klika, \{Alison K.\} and \{van den Bogert\}, \{Antonie J.\} and Barsoum, \{Wael K.\}",

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AU - Bonner, Tara F.

AU - Colbrunn, Robb W.

AU - Bottros, John J.

AU - Mutnal, Amar B.

AU - Greeson, Clay B.

AU - Klika, Alison K.

AU - van den Bogert, Antonie J.

AU - Barsoum, Wael K.

N1 - Bonner, T. F., Colbrunn, R. W., Bottros, J. J., 2015, "The Contribution of the Acetabular Labrum to Hip Joint Stability: A Quantitative Analysis using a Dynamic Three-Dimensional Robot Model," Journal of Biomechanical Engineering-Transactions of the ASME, 137(6) pp. 061012.

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N2 - The acetabular labrum provides mechanical stability to the hip joint in extreme positions where the femoral head is disposed to subluxation. We aimed to quantify the isolated labrum's stabilizing value. Five human cadaveric hips were mounted to a robotic manipulator, and subluxation potential tests were run with and without labrum. Three-dimensional (3D) kinematic data were quantified using the stability index (Colbrunn et al., 2013, "Impingement and Stability of Total Hip Arthroplasty Versus Femoral Head Resurfacing Using a Cadaveric Robotics Model," J. Orthop. Res., 31(7), pp. 1108-1115). Global and regional stability indices were significantly greater with labrum intact than after total labrectomy for both anterior and posterior provocative positions. In extreme positions, the labrum imparts significant overall mechanical resistance to hip subluxation. Regional stability contributions vary with joint orientation.

AB - The acetabular labrum provides mechanical stability to the hip joint in extreme positions where the femoral head is disposed to subluxation. We aimed to quantify the isolated labrum's stabilizing value. Five human cadaveric hips were mounted to a robotic manipulator, and subluxation potential tests were run with and without labrum. Three-dimensional (3D) kinematic data were quantified using the stability index (Colbrunn et al., 2013, "Impingement and Stability of Total Hip Arthroplasty Versus Femoral Head Resurfacing Using a Cadaveric Robotics Model," J. Orthop. Res., 31(7), pp. 1108-1115). Global and regional stability indices were significantly greater with labrum intact than after total labrectomy for both anterior and posterior provocative positions. In extreme positions, the labrum imparts significant overall mechanical resistance to hip subluxation. Regional stability contributions vary with joint orientation.

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JO - Journal of Biomechanical Engineering -Transactions of the ASME

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ER -

The Contribution of the Acetabular Labrum to Hip Joint Stability: A Quantitative Analysis Using a Dynamic Three-Dimensional Robot Model

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