Customized surgical guides, methods for manufacturing and uses thereof
The invention relates to surgical guides which are of use during reconstructive bone surgery for guiding a surgical instrument or tool. More particularly, the guides are characterized in that they are fitted to the implant rather than to the bone.
1. A combination of
a patient-specific bone implant; and
a customized surgical guide for surgical instruments for placement on said patient-specific bone implant, said customized surgical guide comprising
one or more customized guiding elements, wherein said one or more guiding elements include drill guiding elements; and
at least one locking feature which can interlock with said implant;
wherein said customized surgical guide and said bone implant engage by means of a unique fit, ensured by the position and orientation of said locking feature and wherein the patient-specific implant is provided with one or more holes corresponding to the guiding elements of the customized surgical guide.
2. The combination according to claim 1 , wherein said patient-specific bone implant is provided with a hole and said locking feature fits into said hole.
3. The combination according to claim 1 , wherein said locking feature forms an extension of one of said guiding elements.
4. The combination according to claim 1 , wherein said implant has an external morphology, and wherein said customized surgical guide further comprises a surface structure extending over at least part of said external morphology.
5. The combination according to claim 4 , wherein said locking feature is provided on said surface structure.
6. The combination according to claim 1 , wherein said bone implant is a patient-specific bone prosthesis.
7. The combination according to claim 1 , wherein said bone implant is a patient-specific acetabular implant.
8. The combination according to claim 1 , wherein said one or more drill guiding elements further comprise a drill stop.
9. The combination according to claim 1 , wherein said one or more guiding elements include cutting guiding elements.
10. The combination according to claim 9 , wherein said one or more cutting guiding elements further comprise a cutting stop.
11. The combination according to claim 1 , wherein said customized surgical guide further comprises an element serving as a visual reference for performing a surgical interaction.
12. A method for fixing a patient-specific bone implant onto a bone, comprising the steps of:
(a) placing a customized surgical guide according to claim 1 onto a patient-specific bone implant according to claim 1 ; wherein a unique fit of said customized surgical guide on said patient-specific bone implant is ensured by the fitting of said locking features of said guide;
(b) introducing screw trajectories in the implant with the appropriate surgical tools;
(c) removing said customized surgical guide; and
(d) fixing the patient-specific bone implant with one or more screws onto the bone;
wherein step (d) in said method can be either prior to or after step (c).