METHOD OF PROVIDING FEEDBACK TO AN ORTHOPEDIC ALIGNMENT SYSTEM

• US 20140276888A1
• Filed: 09/13/2013
• Published: 09/18/2014
• Est. Priority Date: 03/18/2013
• Status: Active Grant

• Current Assignee: Howmedica Osteonics Corp. (Stryker Corporation)
• Original Assignee: OrthoSensor, Inc (Stryker Corporation)
• Inventors: Stein, Marc, Roche, Martin
• Granted Patent: US 9,259,172 B2
• Time in Patent Office: Days
• US Class Current: 606/102
• CPC Class Codes: A61B 17/154 for preparing bone for knee prosthesis
• CPC Class Codes: A61B 17/155 Cutting femur
• CPC Class Codes: A61B 17/157 Cutting tibia
• CPC Class Codes: A61B 17/1764 for the knee
• CPC Class Codes: A61B 2034/102 Modelling of surgical devices, implants or prosthesis
• CPC Class Codes: A61B 2034/104 Modelling the effect of the tool, e.g. the effect of an implanted prosthesis or for predicting the effect of ablation or burring
• CPC Class Codes: A61B 2034/105 Modelling of the patient, e.g. for ligaments or bones
• CPC Class Codes: A61B 34/10 Computer-aided planning, simulation or modelling of surgical operations
• CPC Class Codes: A61B 34/20 Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
• CPC Class Codes: A61B 34/25 User interfaces for surgical systems
• CPC Class Codes: A61B 5/103 Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes A61B5/08 takes precedence; measuring aids for tailors A41H1/00; measuring instruments specially adapted for dentistry A61C19/04
• CPC Class Codes: A61B 5/1036 Measuring load distribution, e.g. podologic studies
• 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 5/1121 Determining geometric values, e.g. centre of rotation or angular range of movement
• CPC Class Codes: A61B 5/45 For evaluating or diagnosing the musculoskeletal system or teeth A61B5/1036, A61B5/1074, A61B7/006 take precedence
• CPC Class Codes: A61B 5/4528 Joints A61B5/4533, A61B5/4538 take precedence
• CPC Class Codes: A61B 5/4571 Evaluating the hip
• CPC Class Codes: A61B 5/4585 Evaluating the knee
• CPC Class Codes: A61B 5/4851 Prosthesis assessment or monitoring
• CPC Class Codes: A61B 5/4887 Locating particular structures in or on the body
• CPC Class Codes: A61B 5/686 : Permanently implanted devices, e.g. pacemakers, other stimulators, biochips A61B5/6861 takes precedence
• CPC Class Codes: A61B 90/37 : Surgical systems with images on a monitor during operation
• CPC Class Codes: A61F 2/38 : for elbows or knees
• CPC Class Codes: A61F 2/3836 : Special connection between upper and lower leg, e.g. constrained
• CPC Class Codes: A61F 2/461 : of knees
• CPC Class Codes: A61F 2/4657 : Measuring instruments used for implanting artificial joints for surgical instruments A61B90/06
• CPC Class Codes: A61F 2/4684 : Trial or dummy prostheses
• CPC Class Codes: A61F 2002/4658 : for measuring dimensions, e.g. length
• CPC Class Codes: A61F 2002/4668 : for measuring angles
• CPC Class Codes: G06F 3/0481 : based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance

Abstract

A method of providing feedback to a user of an orthopedic alignment system, which displays: a portion of an orthopedic system; a parameter of the orthopedic system; a portion of an orthopedic insert in the display; and a parameter of the orthopedic insert. Where the method detects movement of the orthopedic system, and moves the displayed portion of the orthopedic system in response to the movement of the orthopedic system. Where the method additionally detects changes of the parameter of the orthopedic insert and of the parameter of the orthopedic system during movement of the orthopedic system, and displays the changes of the parameter of the orthopedic insert and the parameter of the orthopedic system.

Claims

1. A method of providing feedback an orthopedic alignment system coupled to display comprising:

displaying a portion of an orthopedic system on a display;

displaying a parameter of the orthopedic system in the display;

displaying a portion of an orthopedic insert in the display;

displaying a parameter of the orthopedic insert in the display;

detecting movement of the orthopedic system, and moving the displayed portion of the orthopedic system in response to the movement of the orthopedic system;

detecting a change of the parameter of the orthopedic insert during movement of the orthopedic system;

detecting a change of the parameter of the orthopedic system during movement of the orthopedic system;

displaying the change in parameter of the orthopedic insert in the display; and

displaying the change in parameter of the orthopedic system in the display.

2. The method according to claim 1, where the parameter of the orthopedic system is at least one of a CP Rotation, A-P slope, flexion angle, tibial rotation, or a tibia angle.

7. The method according to claim 1, where the parameter of the orthopedic insert is at least one of a medial load on the insert, a lateral load on the insert, or an insert rotation angle.

10. The method according to claim 1, where the parameter of the orthopedic insert is a medial contact location displayed as a symbol or area of contact on the displayed portion of the orthopedic insert.

11. The method according to claim 1, where the parameter of the orthopedic insert is a lateral contact location displayed as a symbol or area of contact on the displayed portion of the orthopedic insert.

12. The method according to claim 1, where the parameter of the orthopedic insert is at least one of a medial contact load displayed as a range on a display or a lateral contact load displayed as a range on a display.

14. The method according to claim 1 further including:

displaying a dial that moves in response to the movement of the orthopedic system.

15. The method according to claim 1 further including:

changing the color of the displayed parameter of the orthopedic system when the value of the parameter of the orthopedic system is within a predetermined range of a target value of the parameter of the orthopedic system.

16. The method according to claim 1 further including:

changing the color of the displayed parameter of the orthopedic insert when the value of the parameter of the orthopedic insert is within a predetermined range of a target value of the parameter of the orthopedic insert.

3-6. -6. (canceled)

8-9. -9. (canceled)

13. (canceled)

17. A method of providing feedback an orthopedic alignment system coupled to display comprising:

displaying a portion of an orthopedic system on a display;

displaying the sensor attached to the orthopedic system.

displaying a first orientation of the orthopedic system on the display;

moving the orthopedic system to second orientation at a target flexion value;

displaying the second orientation on the display;

calculating a mechanical axis of the orthopedic system; and

displaying the mechanical axis on the display.

18. The method of claim 17 further comprising:

rotating the orthopedic system between a first and second point; and

displaying the rotation of the orthopedic system on the display.

19. The method according to claim 18, further comprising:

calculating an alignment value; and

displaying the alignment value on the display.

20. The method according to claim 19, further comprising:

moving the orthopedic system to a third orientation to a second target flexion value; and

displaying the third orientation on the display.

21. The method according to claim 20, further comprising:

moving the orthopedic system to a third orientation to a second target flexion value; and

displaying the third orientation on the display.

22. A method of providing feedback an orthopedic alignment system coupled to display comprising:

displaying a portion of a first bone on a display;

displaying a portion of a second bone on the display;

displaying a portion of a sensor on the display;

displaying a first and second load scale on the display;

displaying a first load value in the first load scale on the display;

displaying a second value in the second load scale on the display;

calculating a tibial rotation value; and

displaying the tibial rotation value on the display.

23. A method according to claim 22 further comprising:

calculating a varus value; and

displaying the Varus value on the display.

24. A method according to claim 23 further comprising:

calculating a valgus value; and

displaying the Valgus value on the display.

25. A method according to claim 23 further comprising:

calculating a CP Rotation value; and

displaying the CP Rotation value on the display.