OBJECTIVE Optimal patient selection for upper-thoracic (UT) versus lower-thoracic (LT)
fusion during adult spinal deformity (ASD) correction is challenging. Radiographic and …

OBJECTIVE Sagittal alignment is an important predictor of functional outcomes after surgery
for adult spinal deformity (ASD). A rigid spinal column may create a large lever arm that may …

OBJECTIVE Issues with spinopelvic fixation for adult spinal deformity (ASD) include loss of
the physiological mobility of the entire lumbar spine, perioperative complications, and …

Study Design: A single-center retrospective cohort study. Objective: The objective of this
study was to assess the effects of patient height and pelvic incidence (PI) on age-adjusted …

Study Design. Retrospective review of prospectively collected data. Objective. The aim of
this study was to examine which radiographic parameters and surgical strategies are most …

Objective This case series examined patients undergoing caudal extension of prior fusion
without alteration of the prior upper instrumented vertebra (UIV) to assess patient outcomes …

Study Design. A retrospective study. Objective. To assess the mechanisms and the
independent risk factors associated with proximal junctional kyphosis (PJK) in patients …

Object Proximal junctional kyphosis (PJK) is a common and significant complication after
corrective spinal deformity surgery. The object of this study was to compare—based on …

Purpose. Despite adequate correction, the pelvis may fail to readjust, deemed pelvic
nonresponse (PNR). To assess alignment outcomes [PNR, proximal junctional kyphosis …

BACKGROUND CONTEXT For surgical adult spinal deformity (ASD) patients, determining
optimal restoration of alignment and spinal shape is an active area of research. Complex …