Hip surgery systems and methods

• US 9,931,059 B2
• Filed: 03/05/2015
• Issued: 04/03/2018
• Est. Priority Date: 09/10/2008
• Status: Active Grant

• Current Assignee: Orthalign, Inc.
• Original Assignee: Orthalign, Inc.
• Inventors: Borja, Santiago P.
• Primary Examiner(s): BECCIA, CHRISTOPHER J
• Application Number:
  US14/639,784
• Publication Number:
  US 20150272478A1
• Time in Patent Office: 1,125 Days
• CPC Class Codes: A61B 2090/067 for measuring angles
• CPC Class Codes: A61B 2090/0809 Indication of cracks or breakages
• CPC Class Codes: A61B 5/1072 measuring distances on the body, e.g. measuring length, height or thickness A61B5/1076 takes precedence
• CPC Class Codes: A61B 5/1077 Measuring of profiles
• CPC Class Codes: A61B 5/1079 using optical or photographic means
• CPC Class Codes: A61F 2/32 for the hip
• CPC Class Codes: A61F 2/4607 of hip femoral endoprostheses
• CPC Class Codes: A61F 2/4609 of acetabular cups
• CPC Class Codes: A61F 2/4657 Measuring instruments used for implanting artificial joints for surgical instruments A61B90/06
• CPC Class Codes: A61F 2002/4658 for measuring dimensions, e.g. length
• CPC Class Codes: A61F 2002/4668 for measuring angles
• CPC Class Codes: A61F 2002/4687 Mechanical guides for implantation instruments

Abstract

Orthopedic systems and methods are provided for use in preparing joints for implants. Specifically, hip preparation systems and methods are disclosed which can include a surgical orientation device. The hip preparation systems and methods can be used, for example, to orient the hip during the procedure, determine the orientation of an anatomical plane or planes, and orient a prosthetic component or components.

Claims

1. A method for assisting a surgeon, comprising:

attaching a post to a bone of the patient;

coupling a surgical orientation device to the post;

coupling a probe to the post;

sliding and/or pivoting the probe relative to the post until the probe contacts a reference point;

measuring at least one of orientation or position of the probe when the probe contacts the reference point; and

determining a reference frame using the surgical orientation device.

2. The method of claim 1, further comprising orienting a prosthetic component or components relative to the reference frame.

3. The method of claim 1, wherein attaching the post comprises driving the post into a patient'"'"'s hip.

4. The method of claim 1, further comprising marking the reference point using a marker device.

5. The method of claim 1, wherein determining the reference frame further comprises contacting the acetabular rim to identify a plane of the acetabular rim.

6. The method of claim 1, further comprising reading markings along at least one side or portion of the probe.

7. The method of claim 1, wherein the probe is a laser.

22. The method of claim 1, further comprising measuring changes in at least one of leg length and joint offset.

23. The method of claim 1, coupling the probe to the post further comprises coupling the probe to the post to limit one degree of freedom of the probe.

8. A method for assisting a surgeon, comprising:

attaching a post to a bone of the patient;

coupling a surgical orientation device to the post;

sliding or pivoting a probe relative to the post until the probe contacts a landmark, the probe being coupled to the post;

measuring at least one of orientation and position of the probe when the probe is contacting the landmark; and

placing an implant at a selected orientation using information from the surgical orientation device.

9. The method of claim 8, further comprising measuring at least one of orientation and position of the probe when the probe is contacting the landmark after the placing step.

10. The method of claim 8, wherein attaching the post comprises driving the post into a patient'"'"'s hip.

11. The method of claim 8, wherein placing the implant at the selected orientation further comprises determining a reference frame.

12. The method of claim 8, wherein placing the implant at the selected orientation further comprises contacting the acetabular rim to identify a plane of the acetabular rim.

13. The method of claim 8, further comprising reading markings along at least one side or portion of the probe.

14. The method of claim 8, wherein the probe comprises a laser.

24. The method of claim 8, wherein the probe is constrained in at least one direction once coupled to the post.

15. A method for assisting a surgeon, comprising:

coupling an assembly to a bone of a patient, the assembly comprising a post, an orientation device, and an optical component;

emitting an optical signal from the optical component to reference a location;

measuring at least one of orientation and position of the orientation device when the optical component is referencing the location;

placing an implant at a selected orientation; and

measuring at least one of orientation and position of the orientation device when the optical component is referencing the location after placing the implant.

16. The method of claim 15, wherein emitting the optical signal further comprises projecting a point of light onto the anatomy without making physical contact or impairing access to or visualization of the joint space.

17. The method of claim 15, wherein the optical signal comprises light from a fan-style laser.

18. The method of claim 15, wherein emitting the optical signal further comprises passing a laser line through the center of the knee.

19. The method of claim 15, wherein emitting the optical signal further comprises passing a laser line through the ankle.

20. The method of claim 15, wherein the optical signal is laser light.

21. The method of claim 15, wherein the orientation device comprises the optical component.