Patient-specific acetabular guide for anterior approach

摘要

An orthopedic device includes a patient-specific acetabular guide that can be used for preparing an acetabulum of a patient to receive an acetabular implant. The acetabular guide has a body with an outer three-dimensional surface configured to match an acetabulum of a specific patient's hip joint designed from data of the patient's hip joint. The acetabular guide can further include a peripheral annular rim.

主权项

1. An acetabular guide system for placing a guide pin near an acetabulum, comprising:
an exterior curved surface of an acetabular guide configured with a geometry to substantially match the acetabulum of a specific patient based on a geometry of the acetabulum of the specific patient; a central post extending from an interior surface of the acetabular guide; a pin guide defining a tapered guide bore having an internal tapered surface extending from the exterior curved surface; and a pin guide insert having an external tapered surface and defining an insert bore; wherein the pin guide insert is configured to be placed in the tapered guide bore in a pre-selected location relative to the pin guide; wherein the central post and the insert bore are on a guide line when the exterior curved surface is engaged in the acetabulum and the pin guide insert is placed in the tapered guide bore; and wherein the guide line is configured to be aligned with an inferior ischial spine of the specific patient due to the geometry of the exterior curved surface.