Patterns of lumbar spine malalignment leading to revision surgery for proximal junctional kyphosis: a cluster analysis of over-versus under-correction
R Lafage, P Passias, B Sheikh Alshabab… - Global spine …, 2023 - journals.sagepub.com
Study Design Retrospective cohort study. Objective Investigate the patterns of fused lumbar
alignment in patients requiring revision surgery for proximal junctional kyphosis (PJK).
Methods Fifty patients (67.8 yo, 76% female) with existing thoraco-lumbar fusion (T10/12 to
pelvis) and indicated for surgical correction for PJK were included. To investigate patterns of
radiographic alignment prior to PJK revision, unsupervised 2-step cluster analysis was run
on parameters describing the fused lumbar spine (PI-LL) to identify natural independent …
alignment in patients requiring revision surgery for proximal junctional kyphosis (PJK).
Methods Fifty patients (67.8 yo, 76% female) with existing thoraco-lumbar fusion (T10/12 to
pelvis) and indicated for surgical correction for PJK were included. To investigate patterns of
radiographic alignment prior to PJK revision, unsupervised 2-step cluster analysis was run
on parameters describing the fused lumbar spine (PI-LL) to identify natural independent …
[PDF][PDF] Patterns of Lumbar Spine Malalignment Leading to Revision Surgery for Proximal Junctional Kyphosis: A Cluster Analysis of Over-Versus Under-Correction
MS Renaud Lafage, MD Peter Passias… - 2022 - dukespace.lib.duke.edu
Objective: Investigate the patterns of fused lumbar alignment in patients requiring revision
surgery for proximal junctional kyphosis (PJK). Methods: Fifty patients (67.8 yo, 76% female)
with existing thoraco-lumbar fusion (T10/12 to pelvis) and indicated for surgical correction for
PJK were included. To investigate patterns of radiographic alignment prior to PJK revision,
unsupervised 2-step cluster analysis was run on parameters describing the fused lumbar
spine (PI-LL) to identify natural independent groups within the cohort. Clusters were …
surgery for proximal junctional kyphosis (PJK). Methods: Fifty patients (67.8 yo, 76% female)
with existing thoraco-lumbar fusion (T10/12 to pelvis) and indicated for surgical correction for
PJK were included. To investigate patterns of radiographic alignment prior to PJK revision,
unsupervised 2-step cluster analysis was run on parameters describing the fused lumbar
spine (PI-LL) to identify natural independent groups within the cohort. Clusters were …
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