Method for implanting a hip prosthesis and related system

Patent metadata

Field	Value
Publication number	US-9949797-B2
Application number	US-201514979977-A
Country	US
Kind code	B2
Filing date	Dec 28, 2015
Priority date	Mar 14, 2013
Publication date	Apr 24, 2018
Grant date	Apr 24, 2018

Abstract

A method of implanting a hip joint prosthesis into a patient can include obtaining image data of hip joint anatomy of the patient. Physical activities that the patient desires to participate in subsequent to implanting the hip prosthesis can be determined. A size and an initial placement of the hip joint prosthesis based on the image data can be determined. A desired range of motion of the hip joint prosthesis based on the determined physical activities can be determined. A plan can be created comprising a desired implanted location of the hip joint prosthesis and based on the desired range of motion. The plan can be incorporated onto a guide. The plan can be executed with the guide thereby implanting the hip joint prosthesis into the patient at the desired implanted position.

First claim

What is claimed is:

1. A method of implanting a hip joint prosthesis into a patient, the method comprising:
obtaining image data of hip joint anatomy of the patient;
determining a size and an initial placement of the hip joint prosthesis based on the image data;
determining a desired range of motion of the hip joint prosthesis;
creating a plan comprising a desired implanted location of the hip joint prosthesis and based on the desired range of motion;
displaying an implantation template on an electronic display of an instrument, the implantation template including information from the plan related to the desired implanted location and the initial placement of the hip joint prosthesis; and
providing the plan for execution on the electronic display of the instrument to implant the hip joint prosthesis into the patient at the desired implanted location.

2. The method of claim 1 wherein providing the plan for execution further comprises:
providing feedback to a surgeon on the electronic display based on an actual position of the hip joint prosthesis relative to the desired implanted location of the hip joint prosthesis.

3. The method of claim 1 wherein creating the plan further comprises:
determining a desired orientation of the hip joint prosthesis including a target inclination angle and target anteversion angle; and
incorporating the desired orientation into the plan.

4. The method of claim 1 , further comprising registering the hip joint anatomy of the patient with the plan.

5. The method of claim 4 wherein registering the hip joint anatomy comprises:
performing a three-dimensional scan of the hip joint anatomy; and
mapping anatomical surfaces of a femur and acetabulum of the hip joint anatomy.

6. The method of claim 1 wherein
the instrument is a hip insertion instrument.

7. The method of claim 1 wherein
the instrument is an acetabular cup insertion instrument.

8. The method of claim 7 wherein providing the plan for execution comprises:
providing at least one of tactile, visual and audible feedback based on an actual position of an acetabular cup of the hip joint prosthesis relative to the desired implanted location of the hip joint prosthesis.

9. The method of claim 1 , further comprising:
performing an impingement and stability analysis; and
modifying the desired implanted position based on detecting of at least one of impingement and instability of the hip joint prosthesis.

10. The method of claim 1 wherein creating the plan further comprises:
creating the plan based on at least one of the hip joint anatomy of the patient and a database of pelves having anatomical characteristics substantially similar to the patient.

11. The method of claim 1 wherein obtaining image data comprises:
creating a virtual anatomical three-dimensional model of the patient's hip joint;
obtaining an actual partial scan of the patient's hip joint; and
registering the partial scan to the virtual anatomical three-dimensional model.

12. A method of implanting a hip joint prosthesis into a patient, the method comprising:
obtaining image data of hip joint anatomy of the patient;
determining a size and an initial placement of the hip joint prosthesis based on the image data;
determining a desired range of motion of the hip joint prosthesis;
creating a plan comprising a desired implanted location and position of the hip joint prosthesis based on the desired range of motion;
displaying an implantation template on an electronic display of an instrument, the implantation template having information from the plan related to the desired implanted location and the initial placement of the hip joint prosthesis; and
providing the implantation template for reference on the electronic display while the hip joint prosthesis is implanted into the patient at the desired implanted position.

13. The method of claim 12 wherein providing the implantation template for reference further comprises:
providing feedback to a surgeon with electronic display based on an actual position of the hip joint prosthesis relative to the desired implanted location of the hip joint prosthesis.

14. The method of claim 12 wherein displaying the implantation template further comprises displaying at least one of:
a target inclination angle;
a target anteversion angle;
an indication of implantation depth of at least one of a (i) femoral component, and (ii) acetabular cup; and
a vector of at least one of a (i) femoral component position, and (ii) acetabular cup insertion angle.

15. The method of claim 12 , further comprising:
performing an impingement and stability analysis; and
modifying the desired implanted position based on detecting of at least one of impingement and instability of the hip joint prosthesis.

16. The method of claim 12 wherein creating the plan further comprises:
creating the plan based on at least one of the hip joint anatomy of the patient and a database of pelves having anatomical characteristics substantially similar to the patient.

17. The method of claim 12
wherein the instrument is an acetabular cup insertion instrument; and
further comprising providing at least one of tactile, visual and audible feedback based on an actual position of an acetabular cup of the hip joint prosthesis relative to the desired implanted location of the hip joint prosthesis.

Assignees

• Biomet Mfg Llc

Inventors

• Meridew Jason D
• Slone William Jason
• Scrafton Mark
• White John
• Nash Seth

Classifications

• A61B17/1742

  for the hip · CPC title

• A61B90/37 Primary

  Surgical systems with images on a monitor during operation · CPC title

• A61B2090/502

  Headgear, e.g. helmet, spectacles · CPC title

• A61B2034/105

  Modelling of the patient, e.g. for ligaments or bones · CPC title

• A61B2090/372

  Details of monitor hardware · CPC title