Sighting ancillary device for resurfacing femoral head of hip, has abutment arm with distal end that bears against inner part when support covers femoral head with sighting axis aligned on central axis of femoral neck or outwardly offset

摘要

#CMT# #/CMT# The device has a support (3) covering a femoral head (71) and including a part (31) that defines an envelope surface in the shape of a sphere. A sighting guide (2) is fixed on the support at outside the surface, with a sighting axis (X2) aligned on a diameter of the sphere. An abutment arm (4) on an inner part (73A) of femoral neck (73) is connected to the support and includes a distal end (43A) that bears against the inner part when the support covers the femoral head with a sighting axis (X2) aligned on a central axis (X73) of the femoral neck or slightly outwardly offset. #CMT#USE : #/CMT# Sighting ancillary device for installing a prosthetic component to resurface a femoral head of hip. #CMT#ADVANTAGE : #/CMT# The sighting ancillary device permits the precise and easy positioning of the sighting axis along an optimal implantation axis by aligning on the central axis of the femoral neck or slightly outwardly offset. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a perspective view of a sighting ancillary device along a same angle during optimal sighting axis implantation for installing a prosthetic component to resurface a femoral head. X2 : Sighting axis X73 : Central axis 2 : Sighting guide 3 : Support 4 : Abutment arm 31, 33, 35 : Support parts 43A : Distal end 71 : Femoral head 73 : Femoral neck 73A : Inner part.