Improved techniques for measuring in vitro the geometry and pressure distribution in the human acetabulum, I:​ ultrasonic measurement of acetabular surfaces, sphericity and cartilage thickness

Rushfeldt, P. D.<sup>1</sup>; Mann, R. W.<sup>1</sup>; Harris, W. H.<sup>2</sup>

Affiliations

¹Massachusetts Institute of Technology, Department of Mechanical Engineering, 77 Massachusetts Avenue, Room 3-144, Cambridge, MA 02139, U.S.A.

²Massachusetts General Hospital, Department of Orthopaedic Surgery, Boston, MA021 14, USA

Abstract

A unique, highly accurate, non-contacting method for measuring the loaded and unloaded shape and thickness of acetabular articular cartilage employing ultrasound is described. The unloaded cartilage surface is shown to be spherical with localized deviations less than 150 μm. The calcified cartilage interface is quite irregular with deviations from sphericity of 500 μm. The centers of the best-fitting spheres to the cartilage surface and the calcified interface are displaced resulting in decreased cartilage thickness in the anterior medial aspect.

Links

DOI: 10.1016/0021-9290(81)90070-1

PubMed: 7240287

WoS: A1981LQ96500006

History

Received: 1978-09-25

Revised: 1980-03-11

Cited Works (2)

Year	Entry
1979	Armstrong CG, Bahrani AS, Gardner DL. In vitro measurement of articular cartilage deformations in the intact human hip joint under load. J Bone Joint Surg. July 1979;61A(5):744-755.
1978	Rushfeldt PD. Human Hip Joint Geometry and the Resulting Pressure Distribution Cambridge, MA: Massachusetts Institute of Technology; 1978.

Cited By (22)

Year	Entry
1999	Shepherd DET, Seedhom BB. Thickness of human articular cartilage in joints of the lower limb. Ann Rheum Dis. January 1999;58(1):27-34.
1983	Brown TD, Shaw DT. In vitro contact stress distributions in the natural human hip. J Biomech. 1983;16(6):373-384.
1984	Brown TD, DiGioia AM III. A contact-coupled finite element analysis of the natural adult hip. J Biomech. 1984;17(6):437-448.
1991	Ateshian G, Soslowsky L, Mow V. Quantitation of articular surface topography and cartilage thickness in knee joints using stereophotogrammetry. J Biomech. January 1991;24(8):761-776.
1999	Donzelli PS, Spilker RL, Ateshian GA, Mow VC. Contact analysis of biphasic transversely isotropic cartilage layers and correlations with tissue failure. J Biomech. October 1999;32(10):1037-1047.
1994	Macirowski T, Tepic S, Mann RW. Cartilage stresses in the human hip joint. J Biomech Eng. February 1994;116(1):10-18.
2008	Anderson AE, Ellis BJ, Maas SA, Peters CL, Weiss JA. Validation of finite element predictions of cartilage contact pressure in the human hip joint. J Biomech Eng. October 2008;130(5):051008.
1992	Soslowsky LJ, Flatow EL, Bigliani LU, Pawluk RJ, Ateshian GA, Mow VC. Quantitation of in situ contact areas at the glenohumeral joint: a biomechanical study. J Orthop Res. July 1992;10(4):524-534.
1994	Athanasiou KA, Agarwal A, Dzida FJ. Comparative study of the intrinsic mechanical properties of the human acetabular and femoral head cartilage. J Orthop Res. May 1994;12(3):340-349.
1986	Hodge WA, Fijan RS, Carlson KL, Burgess RG, Harris WH, Mann RW. Contact pressures in the human hip joint measured in vivo. Proc Natl Acad Sci USA. May 1986;83(9):2879-2883.
1999	Zdero R. A New Diagnostic Ultrasound Technique for Studying TKR Contact Mechanics [PhD thesis]. Queen's University; May 1999.
2000	Ferguson SJ. Biomechanics of the Acetabular Labrum [PhD thesis]. Queen's University; March 2000.
2018	Arabshahi Z. New Mechanical Indentation Framework for Functional Assessment of Articular Cartilage [PhD thesis]. Queensland University of Technology; 2018.
1989	Suh J-K. A Finite Element Formulation for Nonlinear Behavior of Biphasic Hydrated Soft Tissues Under Finite Deformation [PhD thesis]. Troy, NY: Rensselaer Polytechnic Institute; September 1989.
1997	Stevens SS. Mechanical Regulation of Articular Cartilage Development, Maintenance and Degeneration [PhD thesis]. Stanford University; August 1997.
1999	Powers MJ. Human Patellofemoral Kinematics and Related Joint Surface Geometry [Master's thesis]. Calgary, AB: University of Calgary; September 1999.
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2002	Couillard S. Cartilage Deformation of the Feline Patellofemoral Joint Obtained from Laser Scanning [Master's thesis]. Calgary, AB: University of Calgary; April 2002.
2011	Han E. Tissue Engineering of Cartilaginous Grafts With Mechanically Functional Aggrecan [PhD thesis]. San Diego (UCSD), University of California; 2011.
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1998	Mukherjee N. Load Sharing in Articular Cartilage [PhD thesis]. Richmond, VA: Virginia Commonwealth University; August 1998.