Grid patterned alignment plate for imaging apparatus and method of providing implant placement

摘要

A computer implemented system for adjusting the placement of an implant in a patient through the use of a dimensioned grid template placed relative to patient anatomy on a fluoroscopic machine and a method to digitally quantify alignment parameters is provided. This system can be used for determining: 1) leg length, offset, and cup position during arthroplasty replacement surgery; 2) fracture reduction/correction position during trauma procedures and 3) an apparatus to be used for deformity correction planning is provided; 4) placement and positioning of instruments and implants relative to bone and anatomical architecture; 5) bone anatomy boundary parameter identification relative to reaming and cutting landmarks of bone.

主权项

1. A computer implemented system to digitally quantify alignment and placement parameters in a musculoskeletal application comprising:
a computer system coupled to a radioactive beam emitter and a fluorescent detector, wherein said fluorescent detector is aligned to said radioactive beam emitter to capture an image of a patient; said computer implemented system further comprising: a microprocessor comprising:
i. an image capturing module configured to capture an operative image of a portion of said patients body; and
obtain a reference image of a contra lateral side of said portion of said patient's body;ii. a calibration and anatomical matching module coupled to said image capturing module and configured to
1. calibrate said reference image and said operative image to same magnification;2. identify at least one first anatomic marker in said reference image and at least one second corresponding anatomic marker in said operative image; and3. produce an overlaid image by overlapping said reference image and said operative image together and anatomically aligning said at least one second anatomic marker against said at least one first anatomic marker on said overlaid imagea differential mapping module coupled to said calibration and anatomical matching module and configured to digitally quantify alignment and placement parameters in musculoskeletal applications based on said reference image and said operative image taken by said image capturing module, wherein a grid pattern having a radiolucent dimensioned grid plate with a predefined grid pattern and the radiolucent dimensioned grid plate is positioned between the patient and said fluoroscopic detector, and wherein said radiolucent dimensioned grid plate comprises a top surface and a bottom surface, at least one of the top and the bottom surfaces having a plurality of dimensioned radio-opaque horizontal and vertical lines formed thereon; the horizontal and the vertical lines being spaced apart with identical distance between each subsequent vertical line in a horizontal direction and each subsequent horizontal line in a vertical direction; an oblique grid line at an angle of between about 30 to 50 degrees relative to the horizontal lines; and a medial-lateral slot formed in one of the top and bottom surfaces of said grid plate to be parallel to the horizontal lines wherein said computer system further comprises:b. the microprocessor coupled to said radioactive beam emitter and said fluorescent detector; andc. a non-transitory computer-readable storage medium coupled to said microprocessor, wherein said non-transitory computer-readable storage medium is encoded with computer-readable instructions that implement functionalities of said image capturing module, said calibration and anatomical matching module and said differential matching module wherein said computer-readable instructions are executed by the microprocessor.