Figure 1 represents a cross - sectional view of the shoulder system (29) according to the present teachings. The system utilizes the glenoid coupling member or glenoid tray (20) to couple a shoulder bearing (23) to the prepared glenoid. Disposed within the glenoid tray is the shoulder bearing having a mounting interface surface (24) and concave bearing surface (25). The concave bearing surface is configured to interface with the articulating surface of a humeral prosthetic (27). The mounting interface surface can have an intermediate depending piston (26). The intermediate depending piston can be fixed to mounting interface surface or, as described below, to the glenoid tray. Operably disposed between the shoulder bearing and the glenoid tray is an annular spring member (35). The spring member functions to couple the bearing to the glenoiod tray. In this regard, the spring member functions to limit or constrain movement of the shoulder bearing with respect to the glenoid tray. Additionally, the spring member functions to absorb impacts or forces applied onto the bearing surface. The annular spring member has a first end fixably coupled to an aperture (28) formed within the glenoid tray. At its second end, the spring member is fixably coupled to an aperture (30) formed on the interface side of the bearing.Selon la présente invention, la figure 1 représente une vue en coupe transversale du système dépaule (29) selon les présents enseignements. Le système utilise le composant de couplage de glénoïde ou plateau glénoïde (20) pour coupler un support dépaule (23) à la glénoïde préparée. Le support dépaule ayant une surface dinterface de montage (24) et une surface de support concave (25) est disposé dans le plateau glénoïde. La surface de support concave est configurée pour linterfaçage avec la surface darticulation dune prothèse humérale (27). La surface dinterface de montage peut avoir un piston dépendant intermédiaire (26). Le piston dépendant intermédiaire peut être f
