Long-term follow-up of allograft reconstruction of segmental defects of the humeral head associated with posterior dislocation of the shoulder.

The purpose of this study is to report the long-term follow-up result of allograft reconstruction of segmental defect of the humeral head associated with posterior dislocation of the shoulder. Six men underwent operative management of defects of the humeral head involving 40% of the articular surface, following posterior dislocation of the humeral head. The period of time between dislocation and surgery ranged from 7 to 8 weeks.

[Posterior locked shoulder fracture-dislocation: anatomical resconstruction of reverser Hill-Sachs lession].

The posterior instability of the shoulder only represents 4% of the shoulder instabilities. For the diagnosis, the antero-posterior, transtoracic and axilar radiographic projections are recommended. The inverted Hill-Sachs lesion is a fracture caused by compression of the antero-medial part of the humeral head during the posterior dislocation.