Stryker European Operations Holdings LLC

Stryker European Holdings I LLC

Stryker Trauma Gmbh

Ashish Gangwar

Sridhar Anjanappa

Anup Kumar

Kanishk Sethi

Adam John Edelhauser

Manash Lahiri

Arpit Gautam

Sistu Ganesh

Subash K Mannanal

Patrick Valli

Sandeep Menon

Manoj Kumar Singh

Peter Sterrantino

Ryan Sellman

A method of generating a correction plan for correcting a deformed bone includes inputting to a computer system a first image of the deformed bone in a first plane and inputting to the computer system a second image of the deformed bone in a second plane. Image processing techniques are employed to identify a plurality of anatomical landmarks of the deformed bone in the first image. The first image of the deformed bone is displayed on a display device. A graphical of the deformed bone is autonomously generated and graphically overlaid on the first image of the deformed bone on the display device, the graphical template including a plurality of lines, each line connected at each end to a landmark point corresponding to one of the anatomical landmarks. A model of the deformed bone may be autonomously generated based on the graphical template.

Software for use with deformity correction

An external fixation system includes first and second fixation members having first and second pluralities of mounting holes, respectively. The first and second plurality of holes are configured to receive first and second ends of a plurality of struts, each strut having a default or initial mounting position. A simulation of the correction may be performed with the struts in the default positions, but it may be determined that the correction is not achievable. Additional simulations of the correction may be performed with the ends of the struts in different mounting positions to determine if other mounting positions of the struts allow the correction to be completed. During the correction, if one of the struts reaches a maximum length, it may be disconnected and reconnected to a different mounting hole so that, after being reconnected, the strut may be further increased in length to continue the correction.

Ring hole planning for external fixation frames

A system for processing patient data associated with a joint of a patient. The system comprising a computing device executing instructions to generate a 3D patient bone model of the joint in a non-weighted pose. The instructions rearrange 3D first and second bone models in order to mimic a weighted pose of the joint of the patient from a 2D image of the joint of the patient in a weighted pose by performing the steps of: generating a plurality of 2D projections of poses of the 3D patient bone model; comparing the plurality of 2D projections to contour lines of the first bone and the second bone in the 2D image; identifying particular 2D projections that best-fit a shape and size of the contour lines; and arranging the 3D first and second bone models relative to each other according to orientations represented by the particular 2D projections that were identified.

System for pose estimation of three-dimensional bone models in surgical planning a joint replacement procedure

The present disclosure relates to software used in planning the correction of bone deformities preoperatively or postoperatively, and in particular relates to virtually manipulating rings and struts of an external fixation frame in order to plan the steps for making a desired correction to two or more bone portions of a patient. The software can be used prior to surgery, allowing a user to virtually define a bone deformity, and virtually add and manipulate fixation rings and struts to the bone deformity. Based on the virtual manipulations, a correction plan can be generated that describes length adjustments that should be made to the plurality of model struts over a period of time to correct the bone deformity. The software can also be used after surgical fixation of the fixation frame and struts to the deformed bone.

A computer process including receiving first patient bone data of a patient leg and foot in a first pose, the first pose comprising a position and orientation of the patient leg relative to the patient foot as defined in the first patient bone data. The computer process may further include receiving second patient bone data of the patient leg and foot in a second pose, the second pose comprising a position and orientation of the patient leg relative to the patient foot as defined in the second patient bone data. The computer process may further include generating a 3D bone model of the patient leg and foot. Finally, the computer process may include modifying the 3D bone model of the patient leg and foot such that the plurality of 3D bone models are reoriented into a third pose that matches the second pose.

Methods of pose estimation of three-dimensional bone models in surgical planning a total ankle replacement

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Gurgaon, India

Ashish Gangwar