Study findings on arthroscopy are outlined in reports from T. Bradbury and colleagues
December 2nd, 2008
2008 DEC 2 -- According to a study from the United States, "The purpose of this biomechanical study is to compare the pullout strength of a traditional biceps release with an alternative method of releasing the biceps in which a portion of the superior labrum is included in the release. Five pairs of shoulders were arbitrarily separated into 2 groups: biceps tendons to be released ''without labrum'' or ''with labrum.'' The biceps tendons of shoulders in the without-labrum group were released at the tendon-labrum junction."
"In the shoulders in the with-labrum group, the biceps was released with a portion of the superior labrum equal to twice the width of the biceps tendon and half the height of the superior labrum. The force required to pull the biceps tendon through the bicipital groove was then measured with a servohydraulic frame (858 Bionix; MTS Systems, Minneapolis, MN). The mean force required to pull the tendon out of the groove was compared by use of parametric and nonparametric statistical tests, Results: The mean force required to pull the tendon through the bicipital groove was 25.0 N (95% confidence interval, 8.8 to 41.1) in the without-labrum group and 73.2 N (95% confidence interval, 57.1 to 89.3) in the with-labrum group (P = .001 by paired t test and P = .042 by Wilcoxon signed-rank test). Release of the biceps tendon with a portion of the superior labrum significantly increases the force required to pull the biceps tendon through the bicipital tunnel," wrote T. Bradbury and colleagues.
The researchers concluded: "The described method of releasing the biceps tendon with some of the superior labrum may prevent complete biceps retraction and may result ill fewer Popeye deformities after biceps release."
Bradbury and colleagues published the results of their research in Arthroscopy - the Journal of Arthroscopic and Related Surgery (Preventing the Popeye Deformity After Release of the Long Head of the Biceps Tendon: An Alternative Technique and Biomechanical Evaluation. Arthroscopy - the Journal of Arthroscopic and Related Surgery, 2008;24(10):1099-1102).
For additional information, contact J.E. Kuhn, Suite 4200 MCE S Tower, 1215 21st Avenue S, Nashville, TN 37212, USA.
The publisher of the Arthroscopy - the Journal of Arthroscopic and Related Surgery can be contacted at: W B Saunders Co-Elsevier Inc., 1600 John F Kennedy Boulevard, Ste. 1800, Philadelphia, PA 19103-2899, USA.
Keywords: United States, Nashville, Arthroscopy, Surgery.
This article was prepared by Life Science Weekly editors from staff and other reports. Copyright 2008, Life Science Weekly via NewsRx.com.
