Line of cotyloid implants of different sizes

A line of cotyloid implants of different sizes, comprising:

• a cup intended to be fastened in a cotyloid cavity and including a hemispherical polar portion and an equatorial portion extending the polar portion, the polar portion and the equatorial portion delimiting a substantially hemispherical inner cavity,
• an insert pivotally mounted in the inner cavity delimited by the polar and equatorial portions of the cup, the insert delimiting an inner cavity having an inner spherical surface portion and intended to pivotally and retentively mount a prosthetic femoral head,
• wherein the equatorial portion extends from a circumferential edge of the hemispherical polar portion, and a height of the equatorial portions of each of the cups of the various cotyloid implants belonging to the line varies in a decreasing manner as a function of an increase in a size of the cotyloid implants.