Purpose To examine the risk factors of proximal junctional kyphosis (PJK) after surgery for
adult spinal deformity (ASD) focusing on rod contour. Methods Sixty-three patients with ASD …

Abstract Study Design Prospective multicenter database study. Objectives To assess the
incidence of proximal junctional kyphosis (PJK) in operative adolescent idiopathic scoliosis …

BACKGROUND Development of proximal junctional kyphosis (PJK) after correction of adult
spinal deformity (ASD) undermines sagittal alignment. Minimally invasive anterior column …

Study Design. Retrospective analysis of prospective data. Objective. Evaluate the utility of
the Hart-International Spine Study Group proximal junctional kyphosis severity scale (Hart …

Background Several studies have identified risk factors for proximal junctional kyphosis
(PJK) after instrumentation for scoliosis, but the relative risks are unclear …

Study Design: Systematic review. Objectives: To summarize the results of clinical studies
investigating spinal instrumentation techniques aiming to reduce the postoperative …

Study Design. A retrospective study. Objective. To investigate whether the mismatch
between proximal junctional angle (PJA) and the proximal rod contouring contributed to the …

Study Design. Retrospective study. Objective. Determine proximal junctional kyphosis (PJK)
prevalence and analyze risk factors associated with PJK in adolescent idiopathic scoliosis …

Study Design. Multicenter retrospective study. Objective. To validate and improve the
predictive model for proximal junctional failure (PJF) with or without the bone mineral density …

Background context Correction of adult spinal deformity (ASD) by long segment
instrumented spinal fusion is an increasingly common surgical intervention. However, it is …