… impact of upper instrumented vertebra (UIV) screw angles on proximal junctional complications
in … long-segment instrumentation and fusion were included. Patients were divided into a …

… is proximal junctional … association between UIV tilt angle or UIV screw angle with PJK/F. In
a cohort of patients undergoing ASD surgery with a UIV in the lower thoracic or lumbar spine, …

… There was no significant difference in patient characteristics and surgical variables between
the 2 groups, except the proximal junctional angle change (P = 0.031). In the monoaxial …

… the risk of upper instrumented vertebra (UIV) fractures associated with UIV screw fixation (unicortical
vs … Postoperative proximal junctional angle > 5 and a greater correction of LL were …

… No association was found between positive screw angle and … Because of the low number of
patients with an upper thoracic UIV (… There was no association between UIV screw angle and …

… , with positive and negative upper instrumented vertebra pedicle screw–vertebra angle (UIV-PVA) …
a relationship between UIV pedicle screw trajectory and the development of PJK/PJF. …

… insert screws at an angle relative to the long axis of the spine … posture, and specific angles
of inserted screws perform … the relationship between the screw trajectory at UIV and PJK. …

… with pedicle screws at upper instrumented vertebra, proximal … the proximal junctional
kyphotic angle (by 6%) and the proximal … –vertebra connection is less rigid than the screw–vertebra …

… The proximal junctional angle (PJA) was defined as the sagittal Cobb angle between the
inferior … loosing and cut-out, kyphotic deformity, and pain due to protrusion of the screw head, …

… All patients underwent all-pedicle-screw instrumentation and … lordosis was 42 and proximal
junctional angle was −4 (… In this study, the authors also found no correlation between optimal …