SIGHTING ANCILLARY DEVICE FOR RESURFACING OF THE FEMORAL HEAD

摘要

This ancillary device (1) for resurfacing of the femoral head comprises a sighting guide (2) that defines a sighting axis (X₂). It additionally comprises: - a support (3) that is able to cover the femoral head (71) and that defines an enveloping surface in the shape of a portion of a sphere, the sighting guide (2) being fixed on the support with the sighting axis (X₂) aligned on a diameter of the sphere; and - at least one abutment arm (4) on a predefined part (73A) of the femoral neck (73), this arm (4) being connected to the support (3) and having a distal end (43A) that bears against the predefined part (73A) when the support covers the femoral head with the sighting axis (X₂) aligned on the central axis (X₇₃) of the femoral neck or slightly outwardly offset.