Objective Proximal junctional kyphosis (PJK) is radiologic finding, and is defined as
kyphosis of> 10 at the proximal end of a construct. The aim of this study is to identify factors …

Study Design. Consecutive, multicenter retrospective review. Objective. To evaluate if
change in thoracic kyphosis (TK) has a positive or negative impact on spinopelvic alignment …

Objective To evaluate spinal implant density and proximal junctional kyphosis (PJK) in adult
spinal deformity (ASD). Methods Consecutive patients with ASD receiving≥ 5 level fusions …

Study Design. A retrospective study Objective. To classify the types and identify related
factors on sagittal decompensation after corrective osteotomy for lumbar degenerative …

Purpose Surgery of adult scoliosis was based upon coronal plane radiographical analysis
using Cobb angle measurements, but recently it has been demonstrated that sagittal …

Study Design. A retrospective study. Objective. To determine the critical length of fusion that
warrants additional stronger fixation in lumbosacral (L–S) fusion, and to analyze the risk …

Study Design. Retrospective study. Objective. To report results at a minimum 5 years after
pedicle subtraction osteotomy for fixed sagittal imbalance. Summary of Background Data …

Study Design. A retrospective study. Objective. To analyze time-dependent change of,
prevalence of, and risk factors for proximal junctional kyphosis (PJK) in adult spinal …

OBJECTIVE L5–S1 stand-alone anterior lumbar interbody fusion (ALIF) is a reliable
technique to treat symptomatic degenerative disc disease but remains controversial for …

Background context Proximal junctional failure (PJF) is a recognized complication of spinal
deformity surgery. Acute PJF (APJF) has recently been demonstrated to be 5.6% in the adult …