US 12,251,134 B2
Method for improved spinal correction surgery implementing non-fusion anterior scoliosis correction techniques with vertebrae de-rotation
M Darryl Antonacci, Skillman, NJ (US); Randal R Betz, Bradenton, FL (US); and Laury Cuddihy, New York, NY (US)
Assigned to MD Antonacci Family Trust, Sheridan, WY (US)
Filed by Institute for Spine & Scoliosis, P.A., Lawrenceville, NJ (US)
Filed on May 10, 2024, as Appl. No. 18/660,733.
Application 18/660,733 is a continuation of application No. 18/213,745, filed on Jun. 23, 2023.
Application 18/213,745 is a continuation in part of application No. 18/103,732, filed on Jan. 31, 2023, granted, now 11,737,788.
Application 18/103,732 is a continuation of application No. 17/124,840, filed on Dec. 17, 2020, granted, now 11,602,376.
Prior Publication US 2024/0293154 A1, Sep. 5, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 17/70 (2006.01); A61B 6/50 (2024.01); A61B 17/02 (2006.01); A61B 34/20 (2016.01); A61B 90/00 (2016.01); A61B 17/3211 (2006.01); A61B 17/56 (2006.01); A61B 17/68 (2006.01)
CPC A61B 17/7032 (2013.01) [A61B 6/505 (2013.01); A61B 17/0218 (2013.01); A61B 17/025 (2013.01); A61B 17/7001 (2013.01); A61B 17/7014 (2013.01); A61B 17/7022 (2013.01); A61B 34/20 (2016.02); A61B 90/37 (2016.02); A61B 2017/0256 (2013.01); A61B 17/3211 (2013.01); A61B 2017/565 (2013.01); A61B 2017/681 (2013.01); A61B 17/7044 (2013.01); A61B 2034/2068 (2016.02); A61B 2090/376 (2016.02)] 28 Claims
OG exemplary drawing
 
1. An improved method of performing spinal correction surgery on a patient in which a plurality of vertebrae are adjusted with respect to each other using a de-rotation procedure, each vertebrae comprising at least one side having a center, comprising the steps of:
creating an opening in the patient to provide a surgeon access to the plurality of the vertebrae;
inserting an anchor screw into each of the plurality of vertebrae being operated on, each anchor screw comprising a channel suitable for accepting a flexible tensioning cord;
disposing, a flexible tensioning cord within the channels of at least two of the anchor screws to enable a de-rotation procedure on the plurality of vertebrae; and
performing a vertebrae de-rotation procedure by
locating a stationary tower on a first anchor screw of a first vertebra;
locating a de-rotation tower on a second anchor screw of a second vertebra;
performing a de-rotation maneuver by
applying a downwards translational force vector to the de-rotation tower,
applying a lateral force vector to the de-rotation tower, and
simultaneously applying a lateral counterforce vector to the stationary tower in opposition to the lateral force vector being applied to the de-rotation tower;
tensioning the flexible tensioning cord in the channel of the second anchor screw;
securing the flexible tensioning cord in the channel of the second anchor screw in order to maintain the de-rotation of the vertebrae; and
re-locating the stationary tower to a subsequent vertebra and repeating the de-rotation maneuver.