RT Journal Article SR Electronic T1 Minimally Invasive Surgery Strategies to Prevent Proximal Junctional Kyphosis JF International Journal of Spine Surgery JO Int J Spine Surg FD International Society for the Advancement of Spine Surgery SP S58 OP S64 DO 10.14444/8511 VO 17 IS S2 A1 Alvin Y. Chan A1 Nima Alan A1 S. Harrison Farber A1 James J. Zhou A1 Luke K. O’Neill A1 Juan S. Uribe YR 2023 UL https://www.ijssurgery.com/content/17/S2/S58.abstract AB Proximal junctional kyphosis (PJK) is a common complication following long-segment thoracolumbar fusions for patients with adult spinal deformities. PJK is described as a progressive kyphosis at the upper instrumented vertebra or 1 or 2 segments adjacent to the instrumented vertebra. This condition can lead to proximal junction failure, which results in vertebral body fractures, screw pullouts, and neurological deficits. Revision surgery is necessary to address symptomatic PJK. Research efforts have been dedicated to elucidating risk factors and prevention strategies. It has been postulated that minimally invasive surgery (MIS) techniques may help prevent PJK because these techniques aim to preserve the soft tissue integrity at the top of the construct and maintain posterior element support. In this article, the authors define PJK, describe MIS strategies to prevent PJK, and compare PJK rates after MIS with PJK rates after open approaches for long-segment thoracolumbar fusion.