Articular and ligamentous contributions to the stability of the elbow joint

Bernard F. Morrey, Kai Nan an

Research output: Contribution to journalArticle

560 Citations (Scopus)

Abstract

This preliminary study of four elbow specimens inves tigates the relationship of articular geometry and liga mentous structures in providing stability to the elbow joint. A technique is presented that describes the con straining features of varus-valgus and distraction in extension and at 90° of elbow flexion. Valgus stability is equally divided among the medial collateral ligament, anterior capsule, and bony articulation in full extension; whereas, at 90° of flexion the contribution of the ante rior capsule is assumed by the medial collateral ligament which provides approximately 55% of the stabilizing contribution to valgus stress. Varus stress is noted to be resisted primarily by the anterior capsule (32%) and the joint articulation (55%) with only a small (14%) contribution from the radial collateral ligament. At 90° of flexion, little change is noted in the contribution to the radial collateral ligament (9%), but the anterior capsule offers only 13%, with the remaining stability (75%) arising from the joint articulation. In extension, the soft tissue resistance to distraction is provided minimally by either the radial (5%) or the medial (5%) collateral ligaments, and thus primarily originates from the anterior capsule (85%). At 90° of flexion, however, the capsule offers virtually no resistance to distraction (8%). The radial collateral ligament contributes 10% of the stability, while the medial collateral ligament ac counts for 78% of the resistance to distraction in this position. Too few specimens have been studied to form any conclusions for direct clinical applications at this time. However, the technique provides a reliable tool with additional studies for different positions and loading conditions underway. These efforts should disclose useful information that might be applied to the manage ment of chronic elbow instability, radial head or olecra non fracture, the design and implantation of elbow prostheses, or provide a rationale for other reconstruc tive procedures.

Original languageEnglish (US)
Pages (from-to)315-319
Number of pages5
JournalAmerican Journal of Sports Medicine
Volume11
Issue number5
DOIs
StatePublished - 1983

Fingerprint

Elbow Joint
Collateral Ligaments
Joints
Capsules
Elbow
Elbow Prosthesis
Joint Capsule

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation
  • Public Health, Environmental and Occupational Health

Cite this

Articular and ligamentous contributions to the stability of the elbow joint. / Morrey, Bernard F.; an, Kai Nan.

In: American Journal of Sports Medicine, Vol. 11, No. 5, 1983, p. 315-319.

Research output: Contribution to journalArticle

Morrey, Bernard F. ; an, Kai Nan. / Articular and ligamentous contributions to the stability of the elbow joint. In: American Journal of Sports Medicine. 1983 ; Vol. 11, No. 5. pp. 315-319.
@article{03ca8a4aada441a7a0dfbb287951536e,
title = "Articular and ligamentous contributions to the stability of the elbow joint",
abstract = "This preliminary study of four elbow specimens inves tigates the relationship of articular geometry and liga mentous structures in providing stability to the elbow joint. A technique is presented that describes the con straining features of varus-valgus and distraction in extension and at 90° of elbow flexion. Valgus stability is equally divided among the medial collateral ligament, anterior capsule, and bony articulation in full extension; whereas, at 90° of flexion the contribution of the ante rior capsule is assumed by the medial collateral ligament which provides approximately 55{\%} of the stabilizing contribution to valgus stress. Varus stress is noted to be resisted primarily by the anterior capsule (32{\%}) and the joint articulation (55{\%}) with only a small (14{\%}) contribution from the radial collateral ligament. At 90° of flexion, little change is noted in the contribution to the radial collateral ligament (9{\%}), but the anterior capsule offers only 13{\%}, with the remaining stability (75{\%}) arising from the joint articulation. In extension, the soft tissue resistance to distraction is provided minimally by either the radial (5{\%}) or the medial (5{\%}) collateral ligaments, and thus primarily originates from the anterior capsule (85{\%}). At 90° of flexion, however, the capsule offers virtually no resistance to distraction (8{\%}). The radial collateral ligament contributes 10{\%} of the stability, while the medial collateral ligament ac counts for 78{\%} of the resistance to distraction in this position. Too few specimens have been studied to form any conclusions for direct clinical applications at this time. However, the technique provides a reliable tool with additional studies for different positions and loading conditions underway. These efforts should disclose useful information that might be applied to the manage ment of chronic elbow instability, radial head or olecra non fracture, the design and implantation of elbow prostheses, or provide a rationale for other reconstruc tive procedures.",
author = "Morrey, {Bernard F.} and an, {Kai Nan}",
year = "1983",
doi = "10.1177/036354658301100506",
language = "English (US)",
volume = "11",
pages = "315--319",
journal = "American Journal of Sports Medicine",
issn = "0363-5465",
publisher = "SAGE Publications Inc.",
number = "5",

}

TY - JOUR

T1 - Articular and ligamentous contributions to the stability of the elbow joint

AU - Morrey, Bernard F.

AU - an, Kai Nan

PY - 1983

Y1 - 1983

N2 - This preliminary study of four elbow specimens inves tigates the relationship of articular geometry and liga mentous structures in providing stability to the elbow joint. A technique is presented that describes the con straining features of varus-valgus and distraction in extension and at 90° of elbow flexion. Valgus stability is equally divided among the medial collateral ligament, anterior capsule, and bony articulation in full extension; whereas, at 90° of flexion the contribution of the ante rior capsule is assumed by the medial collateral ligament which provides approximately 55% of the stabilizing contribution to valgus stress. Varus stress is noted to be resisted primarily by the anterior capsule (32%) and the joint articulation (55%) with only a small (14%) contribution from the radial collateral ligament. At 90° of flexion, little change is noted in the contribution to the radial collateral ligament (9%), but the anterior capsule offers only 13%, with the remaining stability (75%) arising from the joint articulation. In extension, the soft tissue resistance to distraction is provided minimally by either the radial (5%) or the medial (5%) collateral ligaments, and thus primarily originates from the anterior capsule (85%). At 90° of flexion, however, the capsule offers virtually no resistance to distraction (8%). The radial collateral ligament contributes 10% of the stability, while the medial collateral ligament ac counts for 78% of the resistance to distraction in this position. Too few specimens have been studied to form any conclusions for direct clinical applications at this time. However, the technique provides a reliable tool with additional studies for different positions and loading conditions underway. These efforts should disclose useful information that might be applied to the manage ment of chronic elbow instability, radial head or olecra non fracture, the design and implantation of elbow prostheses, or provide a rationale for other reconstruc tive procedures.

AB - This preliminary study of four elbow specimens inves tigates the relationship of articular geometry and liga mentous structures in providing stability to the elbow joint. A technique is presented that describes the con straining features of varus-valgus and distraction in extension and at 90° of elbow flexion. Valgus stability is equally divided among the medial collateral ligament, anterior capsule, and bony articulation in full extension; whereas, at 90° of flexion the contribution of the ante rior capsule is assumed by the medial collateral ligament which provides approximately 55% of the stabilizing contribution to valgus stress. Varus stress is noted to be resisted primarily by the anterior capsule (32%) and the joint articulation (55%) with only a small (14%) contribution from the radial collateral ligament. At 90° of flexion, little change is noted in the contribution to the radial collateral ligament (9%), but the anterior capsule offers only 13%, with the remaining stability (75%) arising from the joint articulation. In extension, the soft tissue resistance to distraction is provided minimally by either the radial (5%) or the medial (5%) collateral ligaments, and thus primarily originates from the anterior capsule (85%). At 90° of flexion, however, the capsule offers virtually no resistance to distraction (8%). The radial collateral ligament contributes 10% of the stability, while the medial collateral ligament ac counts for 78% of the resistance to distraction in this position. Too few specimens have been studied to form any conclusions for direct clinical applications at this time. However, the technique provides a reliable tool with additional studies for different positions and loading conditions underway. These efforts should disclose useful information that might be applied to the manage ment of chronic elbow instability, radial head or olecra non fracture, the design and implantation of elbow prostheses, or provide a rationale for other reconstruc tive procedures.

UR - http://www.scopus.com/inward/record.url?scp=0020550913&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0020550913&partnerID=8YFLogxK

U2 - 10.1177/036354658301100506

DO - 10.1177/036354658301100506

M3 - Article

VL - 11

SP - 315

EP - 319

JO - American Journal of Sports Medicine

JF - American Journal of Sports Medicine

SN - 0363-5465

IS - 5

ER -