Short communication: Measurement of intrinsic articular joint stability

M. E. Zobitz, A. M. Halder, L. J. Berglund, S. G. Kuhl, Kai N. An

Research output: Contribution to journalArticle

Abstract

Concavity-compression is an important mechanism for keeping a joint centered despite a large range of motion. The purpose of this study was to explain how the results of a test measuring the joint intrinsic stability can be interpreted and related to joint architecture. As an example, the method was demonstrated for the glenohumeral joint although the versatility allows any articulating joint, whether natural or prosthetic, to be analyzed. The initial slope from the central point was relatively steep, indicating a large resistance to translation. The peak translation force occurred within the first 5 mm of displacement for the glenohumeral joint, indicating a high congruence between the humerus and glenoid surfaces. Stability ratio, calculated as the maximum translation force divided by the applied joint compressive force, makes it possible to compare the stabilizing effect under different compressive loads for different anatomical directions. In hanging arm position, the joint stability ratio ranged from 30.5% to 60.1%. Finally, the effective depth of the concavity and the maximum range of joint translation can be measured by completely dislocating the joint. For the glenohumeral specimen, the smallest glenoid concavity depth, 3.8 mm, occurred in the interior direction. The joint translation limit was smallest in the anterior-posterior direction (28.0 mm). The methodology presented in this study will allow consistent testing parameters between different trials, easily allowing parametric studies to gain a more complete understanding of articular joints.

Original languageEnglish (US)
Pages (from-to)185-191
Number of pages7
JournalJournal of Musculoskeletal Research
Volume5
Issue number3
DOIs
StatePublished - 2001

Fingerprint

Joints
Shoulder Joint
Humerus
Articular Range of Motion
Direction compound

Keywords

  • Concavity compression
  • Intrinsic stability
  • Joint Kinematics

ASJC Scopus subject areas

  • Surgery

Cite this

Short communication : Measurement of intrinsic articular joint stability. / Zobitz, M. E.; Halder, A. M.; Berglund, L. J.; Kuhl, S. G.; An, Kai N.

In: Journal of Musculoskeletal Research, Vol. 5, No. 3, 2001, p. 185-191.

Research output: Contribution to journalArticle

Zobitz, M. E. ; Halder, A. M. ; Berglund, L. J. ; Kuhl, S. G. ; An, Kai N. / Short communication : Measurement of intrinsic articular joint stability. In: Journal of Musculoskeletal Research. 2001 ; Vol. 5, No. 3. pp. 185-191.
@article{595a33f6394340ef99e98132a63e789d,
title = "Short communication: Measurement of intrinsic articular joint stability",
abstract = "Concavity-compression is an important mechanism for keeping a joint centered despite a large range of motion. The purpose of this study was to explain how the results of a test measuring the joint intrinsic stability can be interpreted and related to joint architecture. As an example, the method was demonstrated for the glenohumeral joint although the versatility allows any articulating joint, whether natural or prosthetic, to be analyzed. The initial slope from the central point was relatively steep, indicating a large resistance to translation. The peak translation force occurred within the first 5 mm of displacement for the glenohumeral joint, indicating a high congruence between the humerus and glenoid surfaces. Stability ratio, calculated as the maximum translation force divided by the applied joint compressive force, makes it possible to compare the stabilizing effect under different compressive loads for different anatomical directions. In hanging arm position, the joint stability ratio ranged from 30.5{\%} to 60.1{\%}. Finally, the effective depth of the concavity and the maximum range of joint translation can be measured by completely dislocating the joint. For the glenohumeral specimen, the smallest glenoid concavity depth, 3.8 mm, occurred in the interior direction. The joint translation limit was smallest in the anterior-posterior direction (28.0 mm). The methodology presented in this study will allow consistent testing parameters between different trials, easily allowing parametric studies to gain a more complete understanding of articular joints.",
keywords = "Concavity compression, Intrinsic stability, Joint Kinematics",
author = "Zobitz, {M. E.} and Halder, {A. M.} and Berglund, {L. J.} and Kuhl, {S. G.} and An, {Kai N.}",
year = "2001",
doi = "10.1016/S0218-9577(01)00055-6",
language = "English (US)",
volume = "5",
pages = "185--191",
journal = "Journal of Musculoskeletal Research",
issn = "0218-9577",
publisher = "World Scientific Publishing Co. Pte Ltd",
number = "3",

}

TY - JOUR

T1 - Short communication

T2 - Measurement of intrinsic articular joint stability

AU - Zobitz, M. E.

AU - Halder, A. M.

AU - Berglund, L. J.

AU - Kuhl, S. G.

AU - An, Kai N.

PY - 2001

Y1 - 2001

N2 - Concavity-compression is an important mechanism for keeping a joint centered despite a large range of motion. The purpose of this study was to explain how the results of a test measuring the joint intrinsic stability can be interpreted and related to joint architecture. As an example, the method was demonstrated for the glenohumeral joint although the versatility allows any articulating joint, whether natural or prosthetic, to be analyzed. The initial slope from the central point was relatively steep, indicating a large resistance to translation. The peak translation force occurred within the first 5 mm of displacement for the glenohumeral joint, indicating a high congruence between the humerus and glenoid surfaces. Stability ratio, calculated as the maximum translation force divided by the applied joint compressive force, makes it possible to compare the stabilizing effect under different compressive loads for different anatomical directions. In hanging arm position, the joint stability ratio ranged from 30.5% to 60.1%. Finally, the effective depth of the concavity and the maximum range of joint translation can be measured by completely dislocating the joint. For the glenohumeral specimen, the smallest glenoid concavity depth, 3.8 mm, occurred in the interior direction. The joint translation limit was smallest in the anterior-posterior direction (28.0 mm). The methodology presented in this study will allow consistent testing parameters between different trials, easily allowing parametric studies to gain a more complete understanding of articular joints.

AB - Concavity-compression is an important mechanism for keeping a joint centered despite a large range of motion. The purpose of this study was to explain how the results of a test measuring the joint intrinsic stability can be interpreted and related to joint architecture. As an example, the method was demonstrated for the glenohumeral joint although the versatility allows any articulating joint, whether natural or prosthetic, to be analyzed. The initial slope from the central point was relatively steep, indicating a large resistance to translation. The peak translation force occurred within the first 5 mm of displacement for the glenohumeral joint, indicating a high congruence between the humerus and glenoid surfaces. Stability ratio, calculated as the maximum translation force divided by the applied joint compressive force, makes it possible to compare the stabilizing effect under different compressive loads for different anatomical directions. In hanging arm position, the joint stability ratio ranged from 30.5% to 60.1%. Finally, the effective depth of the concavity and the maximum range of joint translation can be measured by completely dislocating the joint. For the glenohumeral specimen, the smallest glenoid concavity depth, 3.8 mm, occurred in the interior direction. The joint translation limit was smallest in the anterior-posterior direction (28.0 mm). The methodology presented in this study will allow consistent testing parameters between different trials, easily allowing parametric studies to gain a more complete understanding of articular joints.

KW - Concavity compression

KW - Intrinsic stability

KW - Joint Kinematics

UR - http://www.scopus.com/inward/record.url?scp=0035213730&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0035213730&partnerID=8YFLogxK

U2 - 10.1016/S0218-9577(01)00055-6

DO - 10.1016/S0218-9577(01)00055-6

M3 - Article

AN - SCOPUS:0035213730

VL - 5

SP - 185

EP - 191

JO - Journal of Musculoskeletal Research

JF - Journal of Musculoskeletal Research

SN - 0218-9577

IS - 3

ER -