Algorithm-based optimization for knee arthroplasty procedures

US11684423B2 · kind B2 · utility

Assignees

• SMITH & NEPHEW, INC. · US
• SMITH & NEPHEW ORTHOPAEDICS AG · CH
• SMITH & NEPHEW ASIA PACIFIC PTE. LIMITED · SG

Inventors

• Brian W. McKinnon · Bartlett, US
• Ruxandra C. Marinescu Tanasoca · Memphis, US
• Randy C. Winebarger · Southaven, US
• William L. Bowers, Jr. · Southaven, US
• James Bennett Wiebe, III · Coldwater, US
• Nathaniel Milton Lenz · Germantown, US
• Zachary Christopher Wilkinson · Germantown, US
• Sean M. Haddock · Germantown, US
• Ryan Lloyd Landon · Olive Branch, US
• Constantinos Nikou · Monroeville, US
• Branislav Jaramaz · Pittsburgh, US
• Paul Alexander Torrie · Marblehead, US

Key dates

• Filing date: Mar 12, 2020
• Grant date: Jun 27, 2023
• Expiry date: Sep 27, 2041

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02A90/10
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A method for optimizing a knee arthroplasty surgical procedure includes receiving pre-operative data comprising (i) anatomical measurements of the patient, (ii) soft tissue measurements of the patient's anatomy, and (iii) implant parameters identifying an implant to be used in the knee arthroplasty surgical procedure. An equation set is selected from a plurality of pre-generated equation sets based on the pre-operative data. During the knee arthroplasty surgical procedure, patient-specific kinetic and kinematic response values are generated and displayed using an optimization process. The optimization process includes collecting intraoperative data from one or more surgical tools of a computer-assisted surgical system, and using the intraoperative data and the pre-operative data to solve the equation set, thereby yielding the patient-specific kinetic and kinematic response values. A visualization is then provided of the patient-specific kinetic and kinematic response values on the displays.