Detaillierte Beitrags-Information
| Beitragstitel | Effect of Biceps Rerouting Technique to Restore Glenohumeral Joint Stability for Massive Rotator Cuff Tears |
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| Beitragscode | P015 |
| Autoren | |
| Präsentationsform | Poster |
| Themengebiete |
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| Abstract |
Introduction Recently superior capsule reconstruction (SCR) with tensor fascia lata (TFL) was proposed to treatment for massive rotator cuff tears. However, SCR with TFL has several limitations such as long operation time and complications related to donor site morbidity. So we reported novel technique so called a Biceps Rerouting technique (BR) to avoid this complications. The purpose of this study is to evaluate the biomechanical effect of Biceps Rerouting (BR) on glenohumeral stability at massive rotator cuff tears in the shoulder joint Methods A total of 8 cadaveric shoulders were used for testing in 5 conditions: (1) intact shoulder; (2) massive cuff tear (MCT); (3) partial repair (PR); (4) biceps rerouting (BR); and (5) BR with side to side repair (BRSS). Superior humeral translation, subacromial contact pressure and total rotational range of motion were measured at 40˚, 20˚, and then 0˚ of glenohumeral (GH) abduction with 0˚, 30˚, 60˚, 90˚ external rotation at each testing condition. Repeated measures analysis of variance with a Tukey post hoc test was used for statistical comparison. Results Superior humeral translation was significantly decreased in BR and BRSS compared to MCT and PR in 0˚ GH abduction with ER 30˚, 60˚ and 90˚ (P < 0.001) and in 20˚ GH abduction with ER 60˚and 90˚ (P < 0.001). BR and BRSS significantly decreased subacromial contact pressure compared to MCT and PR at 0˚ GH abduction with ER 30˚, 60˚ and 90˚ (P < 0.001). There was no statistically significant decrease in total rotational range of motion following BR at any abduction angle. Conclusion BR significantly decreased superior humeral translation and subacromial contact pressure in cadaveric specimens compared to partial repair at small angle of GH abduction. In conclusion, BR restored stability of shoulder in specimens with massive rotator cuff tear. We believe BR is a feasible alternative in the treatment option for massive rotator cuff tears. |