1. The glenoid cavity or glenoid fossa of scapula is a part of the shoulder. It is a shallow, pyriform articular surface, which is located on the lateral angle of the scapula.

2. Computed tomography (CT) imaging showed vasogenic edema in the left temporal lobe secondary to intracranial displacement of the left mandibular Condyle through a 1.3 x 0.7 cm defect of the glenoid fossa of the temporal bone

3. A prosthesis assembly for use with a scapula in one embodiment includes an acromion spacer unit (108), a first articulation surface on an inferior surface of the acromion spacer unit, a bone contacting surface (132) on a superior surface of the acromion spacer unit, and a bone mounting member extending sideways from the acromion spacer unit and oriented such that when the acromion spacer unit is mounted on a scapula, the acromion spacer unit is positioned at a height above the height of a midpoint (54) of a glenoid fossa of the scapula.