PATIENT-SPECIFIC SURGICAL GUIDE FOR INTRA-OPERATIVE PRODUCTION OF PATIENT-SPECIFIC AUGMENT

摘要

A patient-specific surgical guide for intra-operatively producing a patient-specific augment and a method for producing same are provided. The method includes planning a patient-specific augment using obtained patient imagery of a bone adapted to receive a prosthesis to determine a size and shape of the patient-specific augment corresponding to the bone, creating a model of the patient-specific augment having the determined size and shape, and providing a patient-specific surgical guide having cutting guide surfaces which are customized in position and orientation and configured to guide a surgical implement to form the patient-specific augment corresponding to the 3D model. The patient-specific surgical guide is then used intra-operatively create the augment corresponding to the 3D model.

主权项

1. A patient-specific surgical guide for intra-operatively creating a patient-specific augment adapted for mounting a prosthetic implant on a bone of a patient, the patient-specific surgical guide comprising:
a base fixture including a mounting surface having a bone retaining portion thereon within which an unformed augment blank is receivable; and a patient-specific cutting guide engaged to the base fixture, the patient-specific cutting guide having one or more cutting guide surfaces which are customized in position and orientation for said patient and configured to guide a surgical implement to re-shape the unformed augment blank to create said patient-specific augment, wherein the patient-specific augment has a size and shape corresponding to a portion of the bone adapted to receive the prosthetic implant such that the patient-specific augment will conform to said portion of the bone for abutment therewith; wherein the patient-specific cutting guide is mounted to the base fixture for displacement between an open inoperable position and a closed bone cutting position, the bone retaining portion of the base fixture being accessible to receive the unformed augment blank therein when the patient-specific cutting guide is disposed in the open inoperable position, and the cutting guide surfaces of the patient-specific cutting guide being disposed in position to allow said re-shaping of the unformed augment blank when the patient-specific cutting guide is disposed in said closed bone cutting position.