The Contribution of the Acetabular Labrum to Hip Joint Stability: A Quantitative Analysis Using a Dynamic Three Dimensional Robot ModelSource: Journal of Biomechanical Engineering:;2015:;volume( 137 ):;issue: 006::page 61012Author:Bonner, Tara F.
,
Colbrunn, Robb W.
,
Bottros, John J.
,
Mutnal, Amar B.
,
Greeson, Clay B.
,
Klika, Alison K.
,
van den Bogert, Antonie J.
,
Barsoum, Wael K.
DOI: 10.1115/1.4030012Publisher: The American Society of Mechanical Engineers (ASME)
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. Threedimensional (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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| contributor author | Bonner, Tara F. | |
| contributor author | Colbrunn, Robb W. | |
| contributor author | Bottros, John J. | |
| contributor author | Mutnal, Amar B. | |
| contributor author | Greeson, Clay B. | |
| contributor author | Klika, Alison K. | |
| contributor author | van den Bogert, Antonie J. | |
| contributor author | Barsoum, Wael K. | |
| date accessioned | 2017-05-09T01:15:15Z | |
| date available | 2017-05-09T01:15:15Z | |
| date issued | 2015 | |
| identifier issn | 0148-0731 | |
| identifier other | bio_137_06_061012.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/157136 | |
| description 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. Threedimensional (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. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | The Contribution of the Acetabular Labrum to Hip Joint Stability: A Quantitative Analysis Using a Dynamic Three Dimensional Robot Model | |
| type | Journal Paper | |
| journal volume | 137 | |
| journal issue | 6 | |
| journal title | Journal of Biomechanical Engineering | |
| identifier doi | 10.1115/1.4030012 | |
| journal fristpage | 61012 | |
| journal lastpage | 61012 | |
| identifier eissn | 1528-8951 | |
| tree | Journal of Biomechanical Engineering:;2015:;volume( 137 ):;issue: 006 | |
| contenttype | Fulltext |