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COMPUTER-BASED METHODS AND SYSTEMS FOR DIGITALLY ADJUSTING JOINT LAXITY IN A PERSONALIZED SURGICAL PLAN OF A JOINT ARTHROPLASTY PROCEDURE

Application US20260076744A1 Kind: A1 Mar 19, 2026

Inventors

Laurent Angibaud, Prudhvi Chinimilli

Abstract

A method is provided for facilitating the implantation of an implant during a surgical procedure. The method includes obtaining bone registration data for a first bone member and a second bone member of a patient's joint, and acquiring patient-specific movement-related data during the procedure after the joint is subjected to at least one movement with a first predefined distraction force applied throughout a continuous range of motions. A distraction force model is used to conduct a joint gap simulation based on predefined ligament stiffness data, the movement-related data at the first distraction force, and at least one simulation distraction force value, resulting in joint gap simulation data. A surgical plan model utilizes the joint gap simulation data and bone registration data to generate a patient-specific intra-operative surgical plan comprising at least one surgical cut parameter. The method further includes cutting the first and/or second bone member based on the surgical plan to facilitate implant implantation.

CPC Classifications

A61B 34/10 A61B 5/1121 A61B 17/025 A61B 34/25 A61B 34/30 A61B 90/06 A61B 90/36 A61B 2017/0268 A61B 2034/104 A61B 2034/105 A61B 2034/107 A61B 2034/252 A61B 2034/256 A61B 2090/066 A61B 2090/374 A61B 2090/3762

Filing Date

2025-09-15

Application No.

19329045