US 12,478,483 B2
Methods for improving spinal alignment and motion
Marc M Peterman, Duxbury, MA (US); Steven C Humphreys, Chattanooga, TN (US); and Scott Hodges, Soldatna, AK (US)
Assigned to 3SPINE, Inc., Chattanooga, TN (US)
Filed by 3SPINE, INC, Chattanooga, TN (US)
Filed on Dec. 27, 2023, as Appl. No. 18/397,857.
Application 18/397,857 is a continuation of application No. 17/023,864, filed on Sep. 17, 2020, granted, now 11,890,202.
Application 17/023,864 is a continuation of application No. 15/955,611, filed on Apr. 17, 2018, granted, now 10,821,003, issued on Nov. 3, 2020.
Claims priority of provisional application 62/654,963, filed on Apr. 9, 2018.
Claims priority of provisional application 62/486,329, filed on Apr. 17, 2017.
Prior Publication US 2024/0122722 A1, Apr. 18, 2024
Int. Cl. A61F 2/44 (2006.01); A61B 17/70 (2006.01); A61F 2/30 (2006.01)
CPC A61F 2/447 (2013.01) [A61F 2/4405 (2013.01); A61F 2/442 (2013.01); A61F 2/4425 (2013.01); A61B 17/7001 (2013.01); A61F 2002/30331 (2013.01); A61F 2002/30563 (2013.01); A61F 2002/30578 (2013.01); A61F 2002/30624 (2013.01); A61F 2002/30652 (2013.01); A61F 2002/30654 (2013.01); A61F 2002/30662 (2013.01); A61F 2002/30884 (2013.01); A61F 2002/448 (2013.01); A61F 2220/0033 (2013.01); A61F 2250/0004 (2013.01); A61F 2310/00796 (2013.01); A61F 2310/00976 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A surgical method for creating a desired lordosis or kyphosis between a first upper vertebrae and a second lower vertebrae, comprising:
removing at least a portion of a natural intervertebral disc from between the upper and lower vertebrae to create a disc space, wherein an endplate of the lower vertebra has a generally planar natural endplate surface;
removing a first wedge of bony material from the lower vertebra to create a first modified vertebral surface which is non-parallel to the generally planar natural endplate surface, at least a first portion of the first modified vertebral surface cutting completely through a posterior cortical bone surface of the endplate and a posterior cortical ring of the lower vertebra without completely removing an anterior cortical bone surface of the endplate of the lower vertebra;
removing at least a portion of a natural pedicle of the lower vertebrae to create a first modified pedicle surface which extends along a remaining portion of the natural pedicle;
inserting a lower portion of a first arthroplasty device at least partially into the disc space, the lower portion of the first arthroplasty device including an upward facing articulation surface, a first lower surface adapted to engage with the first modified vertebral surface and a bridge portion having a first surface for engaging with the first modified pedicle surface outside of the disc space; and
attaching the first arthroplasty device to the lower vertebrae with a bone fastener.