| 摘要 |
Acetabular prosthesis comprising an acetabular cup (12), an acetabular insert (11), able to be stably coupled inside the acetabular cup (12) and configured to receive an articulation head (51) and a centering unit (33) configured to guide and center the insertion and stable positioning of the acetabular insert (11) in the acetabular cup (12). The centering unit (33) comprises a centering hole (27) provided in the acetabular cup (12) and a centering pin (18) provided on the acetabular insert (11) and which develops along a centering axis (X), configured to be inserted in the centering hole (27). The centering pin (18) is provided with an external lateral surface (29) that has an undulating development along the centering axis (X). |
