Restoration of capsulolabral anatomy with the Labral Bridge repair in comparison to a native and standard technique
ESSKA Academy. Ostermann R. May 11, 2018; 218051; FP25-1737
Dr. Roman C. Ostermann
Dr. Roman C. Ostermann
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Objectives: Traditional open Bankart repairs seem to have significantly lower redislocation rates when compared to arthroscopic techniques. A recently published arthroscopic technique, the Labral Bridge, aims to achieve a normal anatomy by using a tape to secure the torn labrum to the glenoid in a running mattress type fashion.

The aim of this study was to evaluate the labral height and native labral footprint coverage following a Labral Bridge repair (LB) when compared to a traditional knotted suture anchor repair (TT).

Methods: A total of 18 fresh-frozen male human cadaveric shoulders (9 matched pairs) were used for this study (6 pairs for height measurement and 3 pairs for footprint measurement). Native labral height was measured at the clock positions using an electronic caliper in six pairs. Then, Bankart lesions were created from the 2 to 6 o'clock and the 6 to 10 o'clock positions and repaired with either the Labral Bridge technique (group LB) or a traditional technique using three knotted suture anchors with simple horizontal stitches (group TT). Following the repair, the restored labral height was measured again. In further 3 pairs the labral tissue was carefully dissected from the 2 to 6 o'clock and from the 6 to 10 o'clock positions and the native labral footprint was colored. A standardized photograph was then taken from the colored footprint and the colored area was analyzed with imaging software. After repairing the lesions according to group LB or TT another photograph was taken and the remaining uncovered colored area was analyzed.

Results: The mean native labral height in group LB was 5,2mm and 5,1mm in group TT, respectively (no significant difference). Following the repair, the mean labral height was 6,6mm in group LB compared to 5,6mm in group TT (p=0.01). The mean native labral footprint before the repair was 71 mm2 in group LB and 78.5 mm2 in group TT (no significant difference). After the repair the remaining uncovered area of the native footprint was 33.1% in group LB and 77.4% in group TT (p=0.002).

Conclusions: The Labral Bridge technique creates a significant higher capsulolabral bump and provides a significant better coverage of the native labral footprint than a traditional technique using three knotted suture anchors with simple horizontal stitches in a cadaver model. The more anatomic repair might further lead to a better healing of the capsulolabral complex and therefore provide higher stability.

Labral Bridge, Bankart Repair, Shoulder Instability
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