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Biomechanical evaluation of a simulated Bankart lesion.

Publication ,  Journal Article
Speer, KP; Deng, X; Borrero, S; Torzilli, PA; Altchek, DA; Warren, RF
Published in: J Bone Joint Surg Am
December 1994

The purpose of this study was to determine the effect of sectioning of the anterior part of the inferior glenohumeral ligament (a simulated Bankart lesion) on load-induced multidirectional glenohumeral motion. Nine fresh, intact cadaveric shoulders were tested on a special apparatus that constrained three rotations but allowed simultaneous measurement of anterior-posterior, superior-inferior, and medial-lateral translation. Coupled anterior-posterior and superior-posterior translations were recorded while anterior, posterior, superior, and inferior forces of fifty newtons were applied sequentially. Testing was done in three positions of humeral elevation in the scapular plane, in three positions of humeral rotation, and with an externally applied joint-compression load of twenty-two newtons. A liquid-metal strain-gauge was placed on the posterior band of the inferior glenohumeral ligament to assess concomitant posterior capsular strain during the various test conditions. All shoulders were tested intact and again after the inferior glenohumeral ligament and the labrum had been detached from the glenoid from just superior to the anterior band of the inferior glenohumeral ligament to a point just posterior to the infraglenoid tubercle. The simulated Bankart lesion resulted in selected increases in anterior translation at all positions of elevation, in posterior translation at 90 degrees of elevation, and in inferior translation at all positions of elevation. However, these increases were very small; the maximum mean increase in translation seen over-all was only 3.4 millimeters, which occurred during inferior translation at 45 degrees of elevation.(ABSTRACT TRUNCATED AT 250 WORDS)

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Published In

J Bone Joint Surg Am

DOI

ISSN

0021-9355

Publication Date

December 1994

Volume

76

Issue

12

Start / End Page

1819 / 1826

Location

United States

Related Subject Headings

  • Stress, Mechanical
  • Shoulder Joint
  • Shoulder Dislocation
  • Rotation
  • Orthopedics
  • Middle Aged
  • Ligaments, Articular
  • Joint Capsule
  • Humans
  • Biomechanical Phenomena
 

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Speer, K. P., Deng, X., Borrero, S., Torzilli, P. A., Altchek, D. A., & Warren, R. F. (1994). Biomechanical evaluation of a simulated Bankart lesion. J Bone Joint Surg Am, 76(12), 1819–1826. https://doi.org/10.2106/00004623-199412000-00008
Speer, K. P., X. Deng, S. Borrero, P. A. Torzilli, D. A. Altchek, and R. F. Warren. “Biomechanical evaluation of a simulated Bankart lesion.J Bone Joint Surg Am 76, no. 12 (December 1994): 1819–26. https://doi.org/10.2106/00004623-199412000-00008.
Speer KP, Deng X, Borrero S, Torzilli PA, Altchek DA, Warren RF. Biomechanical evaluation of a simulated Bankart lesion. J Bone Joint Surg Am. 1994 Dec;76(12):1819–26.
Speer, K. P., et al. “Biomechanical evaluation of a simulated Bankart lesion.J Bone Joint Surg Am, vol. 76, no. 12, Dec. 1994, pp. 1819–26. Pubmed, doi:10.2106/00004623-199412000-00008.
Speer KP, Deng X, Borrero S, Torzilli PA, Altchek DA, Warren RF. Biomechanical evaluation of a simulated Bankart lesion. J Bone Joint Surg Am. 1994 Dec;76(12):1819–1826.
Journal cover image

Published In

J Bone Joint Surg Am

DOI

ISSN

0021-9355

Publication Date

December 1994

Volume

76

Issue

12

Start / End Page

1819 / 1826

Location

United States

Related Subject Headings

  • Stress, Mechanical
  • Shoulder Joint
  • Shoulder Dislocation
  • Rotation
  • Orthopedics
  • Middle Aged
  • Ligaments, Articular
  • Joint Capsule
  • Humans
  • Biomechanical Phenomena