scholarly journals Spino‐Pelvic Thresholds for Prevention of Proximal Junctional Kyphosis Following Combined Anterior Column Realignment and Short Posterior Spinal Fusion in Degenerative Lumbar Kyphosis

2020 ◽  
Vol 12 (6) ◽  
pp. 1674-1684
Author(s):  
Ki Young Lee ◽  
Jung‐Hee Lee ◽  
Kyung‐Chung Kang ◽  
Sang‐Kyu Im ◽  
Dong‐Gune Chang ◽  
...  
Keyword(s):  
Spinal Fusion ◽  
Posterior Spinal Fusion ◽  
Anterior Column ◽  
Proximal Junctional Kyphosis ◽  
Lumbar Kyphosis ◽  
Junctional Kyphosis

Strap stabilization for proximal junctional kyphosis prevention in instrumented posterior spinal fusion

2020 ◽  
Vol 29 (6) ◽  
pp. 1287-1296 ◽  
Author(s):  
Francisco Rodriguez-Fontan ◽  
Bradley J. Reeves ◽  
Andriy Noshchenko ◽  
David Ou-Yang ◽  
Christopher J. Kleck ◽  
...  
Keyword(s):  
Spinal Fusion ◽  
Posterior Spinal Fusion ◽  
Proximal Junctional Kyphosis ◽  
Junctional Kyphosis

Type of Anchor at the Proximal Fusion Level Has a Significant Effect on the Incidence of Proximal Junctional Kyphosis and Outcome in Adults After Long Posterior Spinal Fusion

2013 ◽  
Vol 1 (4) ◽  
pp. 299-305 ◽  
Author(s):  
Hamid Hassanzadeh ◽  
Sachin Gupta ◽  
Amit Jain ◽  
Mostafa H. El Dafrawy ◽  
Richard L. Skolasky ◽  
...  
Keyword(s):  
Spinal Fusion ◽  
Posterior Spinal Fusion ◽  
Proximal Junctional Kyphosis ◽  
Fusion Level ◽  
Junctional Kyphosis

Proximal Junctional Kyphosis in Adults Following Long Posterior Spinal Fusion: Comparison between Two Different Construct at the Upper End of the Construct

2011 ◽  
Vol 11 (10) ◽  
pp. S27 ◽  
Author(s):  
Hamid Hassanzadeh ◽  
Sachin Gupta ◽  
Amit Jain ◽  
Mostafa El Dafrawy ◽  
Richard Skolasky ◽  
...  
Keyword(s):  
Spinal Fusion ◽  
Posterior Spinal Fusion ◽  
Proximal Junctional Kyphosis ◽  
Junctional Kyphosis

Proximal Junctional Kyphosis in Adult Spinal Deformity Following Long Instrumented Posterior Spinal Fusion

Spine ◽  
2005 ◽  
Vol 30 (14) ◽  
pp. 1643-1649 ◽  
Author(s):  
R Chris Glattes ◽  
Keith H. Bridwell ◽  
Lawrence G. Lenke ◽  
Yongjung J Kim ◽  
Anthony Rinella ◽  
...  
Keyword(s):  
Spinal Fusion ◽  
Spinal Deformity ◽  
Adult Spinal Deformity ◽  
Posterior Spinal Fusion ◽  
Proximal Junctional Kyphosis ◽  
Junctional Kyphosis

scholarly journals Incidence of Proximal Junctional Kyphosis With Pedicle Screws at Upper Instrumented Vertebrae in Posterior Spinal Fusion for Adolescent Idiopathic Scoliosis

2020 ◽  
pp. 219256822093510
Author(s):  
Yoji Ogura ◽  
Steven D. Glassman ◽  
Daniel Sucato ◽  
M. Timothy Hresko ◽  
Leah Y. Carreon
Keyword(s):  
Adolescent Idiopathic Scoliosis ◽  
Idiopathic Scoliosis ◽  
Spinal Fusion ◽  
Pedicle Screw ◽  
Standard Procedure ◽  
Pedicle Screws ◽  
Posterior Spinal Fusion ◽  
Proximal Junctional Kyphosis ◽  
The Impact ◽  
Junctional Kyphosis

Study Design: Longitudinal cohort. Objectives: Posterior spinal fusion (PSF) using all-pedicle screw constructs has become the standard procedure in the treatment of adolescent idiopathic scoliosis (AIS). However, there have been several reports that all-pedicle screw constructs or the use of pedicle screws at the upper instrumented vertebrae (UIV) increases the incidence of proximal junctional kyphosis (PJK). We aimed to evaluate the impact of instrumentation type on the incidence of PJK following PSF for AIS. Methods: We performed a stratified random sampling from 3654 patients enrolled in a multicenter database of surgically treated AIS to obtain a representative sample from all Lenke types. Patients were then allocated into 3 groups based on the instrumentation type: all-pedicle screw (PS), hook at UIV with pedicle screws distally (HT), and hybrid constructs (HB). We measured proximal junctional angle (PJA) and defined PJK as PJA ≥ 10° and PJA progression of >10° at the final follow-up. Results: Fifteen (4.3%) of 345 cases had PJK. PJK was significantly more common in PS (11%) compared with HB (1%) and HT (0%) ( P < .001). PJK patients were similar to non-PJK patients regarding age, sex, curve type, UIV, and preoperative coronal Cobb angle. Thoracic kyphosis was significantly higher in the PJK group before surgery. Patients who developed PJK had a statistically significantly larger negative sagittal balance compared with the non-PJK group. Conclusion: The incidence of PJK was 4.3% and was more common in all-pedicle screw constructs. Using hooks at UIV might be a treatment strategy to limit PJK.

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