FIELD

The present disclosure relates to hip arthroplasty and more particularly relates to a method for performing hip arthroplasty.

BACKGROUND

The background description provided herein is for the purpose of generally presenting the context of the disclosure. Work of the presently named inventors, to the extent it is described in this background section, as well as aspects of the description that may not otherwise qualify as prior art at the time of filing, are neither expressly nor impliedly admitted as prior art against the present disclosure.

Prosthetic joints can reduce pain due to arthritis, deterioration, deformation and the like. Prosthetic hip joints often include a femoral component that is fixed to the patient's femur and an acetabular cup that is fixed within the patient's pelvis. More specifically, the femoral component can include a distal stem that extends into the patient's resected femur and a proximal body having a rounded head that is received within the acetabular cup. The head can articulate within the cup so as to moveably couple the femoral component within the acetabular cup. While traditional hip arthroplasty has achieved relative success in terms of results and patient satisfaction, a need exists to provide additional refinement of acetabular cup placement and implant orientation to facilitate more active lifestyles.

SUMMARY

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 one of a tool and a guide. The plan can be executed with the tool or guide thereby implanting the hip joint prosthesis into the patient at the desired implanted location.

According to additional features, executing the plan with the tool or guide can further comprise providing feedback to a surgeon with the tool or guide. The feedback can be based on an actual position of the hip joint prosthesis relative to the desired implanted location of the hip joint prosthesis. A desired orientation of the hip joint prosthesis can be determined. The desired orientation can include a target inclination angle and a target anteversion angle. The desired orientation can be incorporated into the plan.

In additional features, the hip joint anatomy of the patient is registered with the plan. Registering can include performing a three-dimensional scan of the hip joint anatomy. Anatomical surfaces of the femur and acetabulum of the hip joint anatomy can be mapped.

The plan can be incorporated onto eyewear worn by a surgeon. The plan can be executed by projecting data related to the plan onto the eyewear worn by the surgeon. In other configurations, the plan can be incorporated onto an electronic display associated with a hip insertion instrument. The plan can be displayed onto the electronic display. In still other configurations, plan can be incorporated onto an acetabular cup insertion instrument.

In some examples, at least one of tactile and audible feedback can be provided 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. An impingement and stability analysis can be performed. The desired implanted position can be modified based on detecting of at least one of impingement and instability of the hip joint prosthesis. The plan can be created 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. In one example, obtaining image data can include (i) creating a virtual anatomical three-dimensional model of the patient's hip joint, (ii) obtaining an actual partial scan of the patient's hip joint, and (iii) registering the partial scan to the virtual anatomical three-dimensional model.

According to additional examples, 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 visual guide. An implantation template can be displayed onto the visual guide. The implantation template can have information from the plan related to the desired location and position of the hip joint prosthesis. The implantation template can be referenced while implanting the hip joint prosthesis into the patient at the desired implanted position.

Displaying the implantation template can comprise displaying at least one of a target inclination angle and a target anteversion angle. An indication of implantation depth of a femoral component and/or an acetabular cup can be displayed. A vector of a femoral component position and/or an acetabular cup insertion angle can be displayed.

According to additional examples, as 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 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 an electrical guide. The desired implanted location and position can be provided with the electrical guide. The electrical guide can be referenced while implanting the hip joint prosthesis into the patient at the desired implanted position.

Further areas of applicability of the present disclosure will become apparent from the detailed description provided hereinafter. It should be understood that the detailed description and specific examples are intended for purposes of illustration only and are not intended to limit the scope of the disclosure.

