The Effects of Latarjet Reconstruction on Glenohumeral Kinematics in the Presence of Combined Bony Defects: A Cadaveric Model

Conclusion: These results demonstrate that some degree of translation can be regained for combined bony glenoid and humeral head defects with the Latarjet procedure. However, for humeral defects larger than 31%, the rotational effect of the humeral head defect led to persistent decreased translation and to dislocation despite glenoid augmentation. Thus, directly addressing the humeral defect to restore the articular surface should be considered in these cases. Clinical Relevance: This study provides a critical value limit for combined anterior glenoid bone loss and humeral head defects. While this is a biomechanical study, the results indicate that in patients with humeral head defects greater than 31%, additional humeral-sided surgery may be needed.
Source: The American Journal of Sports Medicine - Category: Sports Medicine Authors: Tags: Shoulder, instability, Biomechanics, bone, Shoulder, glenoid labrum Source Type: research