Purpose
To compare pressurized footprint contact and interface pressure between the biceps-labrum
complex and the superior glenoid rim after SLAP repair using 3 different techniques.
Methods
Twenty-four fresh-frozen human cadaveric shoulders were divided into 3 groups. SLAP
lesions were repaired by (1) 2 single-loaded anchors in a simple suture configuration
(group T), (2) a double-loaded anchor in a simple suture configuration in a V shape
(group V), or (3) a double-loaded anchor by use of a hybrid simple and mattress suture
configuration (group H). Pressure-sensitive film quantified pressurized contact areas
and interface pressures between the biceps-labrum complex and the glenoid rim after
SLAP repair.
Results
Groups T and V showed significantly larger contact areas than group H (P < .0001). However, there was no significant difference between groups T and V. Despite
a substantial contact area around the biceps-labrum complex in group T, there was
a lack of sufficient contact area just below the biceps anchor. Group V showed a uniform
contact area around the entire biceps-labrum complex, but in group H the contact area
was concentrated only around the posterior superior labrum, where the simple suture
was used.
Conclusions
The methods using 2 single-loaded suture anchors and using 1 double-loaded suture
anchor with a simple suture configuration showed significantly larger pressurized
contact areas than the method using 1 double-loaded suture anchor with both a simple
and mattress suture configuration. The interface pressure was not significantly different
among groups.
Clinical Relevance
Although there have been several kinds of repair techniques and biomechanical studies
for the type II SLAP lesion, there has been no study about footprint restoration on
the superior glenoid rim. This study analyzed and compared the footprint contact restoration
after type II SLAP repair among 3 different techniques.
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Article info
Publication history
Accepted:
March 6,
2013
Received:
September 2,
2012
Footnotes
This study was supported by a faculty research grant from the Yonsei University College of Medicine (6-2012-0027). The authors report that they have no conflicts of interest in the authorship and publication of this article.
Identification
Copyright
© 2013 Arthroscopy Association of North America. Published by Elsevier Inc. All rights reserved.
