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Proximal Junctional Kyphosis and Proximal Junctional Failure
Neurosurgery Clinics of North America, 2013Proximal junctional failure (PJF) should be distinguished from proximal junctional kyphosis, which is a recurrent deformity with limited clinical impact. PJF includes mechanical failure, and is a significant complication following adult spinal deformity surgery with potential for neurologic injury and increased need for surgical revision.
Christopher Shaffrey +2 more
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The Risk of Proximal Junctional Kyphosis Decreases in Patients With Optimal Thoracic Kyphosis
Spine Deformity, 2019A retrospective study of surgical outcomes.This study aimed to investigate the preoperative risk factors for proximal junctional kyphosis (PJK) in adult spinal deformity (ASD) surgery.The cause of PJK is still unclear, although some risk factors have been reported in ASD surgery.A total of 185 patients who were followed up for more than two years and ...
Tatsuya Yasuda, Shin Oe, Yu Yamato
exaly +3 more sources
Journal of the American Academy of Orthopaedic Surgeons, 2016
Proximal junctional kyphosis (PJK) is a common complication following adult spinal deformity surgery. It is defined by two criteria: a proximal junctional sagittal Cobb angle (1) ≥ 10° and (2) at least 10° greater than the preoperative measurement. PJK is multifactorial in origin and likely stems from surgical, radiographic, and patient-related risk ...
Han Jo, Kim, Sravisht, Iyer
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Proximal junctional kyphosis (PJK) is a common complication following adult spinal deformity surgery. It is defined by two criteria: a proximal junctional sagittal Cobb angle (1) ≥ 10° and (2) at least 10° greater than the preoperative measurement. PJK is multifactorial in origin and likely stems from surgical, radiographic, and patient-related risk ...
Han Jo, Kim, Sravisht, Iyer
+5 more sources
Seminars in Spine Surgery, 2021
Abstract Proximal Junctional Kyphosis (PJK) is defined as a proximal junctional sagittal Cobb angle of ≥ 10° or a proximal junctional sagittal Cobb angle at least 10° greater than the preoperative measurement. There are several risk factors for the development of PJK identified in literature using univariate analysis.
Richard D. Lander, Emmanuel N. Menga
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Abstract Proximal Junctional Kyphosis (PJK) is defined as a proximal junctional sagittal Cobb angle of ≥ 10° or a proximal junctional sagittal Cobb angle at least 10° greater than the preoperative measurement. There are several risk factors for the development of PJK identified in literature using univariate analysis.
Richard D. Lander, Emmanuel N. Menga
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Proximal Junctional Kyphosis and Failure: Strategies for Prevention
Neurosurgery Clinics of North America, 2023Proximal junctional kyphosis (PJK) and proximal junctional failure/fractures (PJF) are common complications following long-segment posterior instrumented fusions for adult spinal deformity. As progression to PJF involves clinical consequences for patients and requires costly revisions that may undermine the utility of surgery and are ultimately ...
Ayush, Arora +3 more
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Revision surgery in proximal junctional kyphosis
European Spine Journal, 2020Proximal junctional kyphosis (PJK) is a relatively common complication following spinal deformity surgery that may require reoperation. Although isolating the incidence is highly variable, in part due to the inconsistency in how PJK is defined, previous studies have reported the incidence to be as high as 39% with revision surgery performed in up to 47%
Meghan Cerpa +2 more
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Recurrent Proximal Junctional Kyphosis
Techniques in Orthopaedics, 2020Proximal junctional kyphosis (PJK) is one of the most common radiographic forms of adjacent segment degeneration with an incidence as high as 50% in adult spinal deformity surgery. It is a multifactorial problem with much still to be learned about the etiology and the most efficacious prevention methods. The challenge of addressing PJK can certainly be
Philip J. York, Han Jo Kim
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Optimizing the Definition of Proximal Junctional Kyphosis: A Sensitivity Analysis
Spine, 2022Study Design. Diagnostic binary threshold analysis. Objective. (1) Perform a sensitivity analysis demonstrating the test performance metrics for any combination of proximal junctional angle (PJA) magnitude and change; (2) Propose a new proximal junctional kyphosis (PJK) criteria.
Francis Lovecchio +14 more
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Osteotomies in proximal junctional kyphosis in the cervicothoracic area
European Spine Journal, 2014Proximal junctional kyphosis (PJK) of the cervicothoracic spine is a deformity that can affect patients who have undergone long thoracolumbar instrumented fusion. Preoperative hyperkyphosis of the thoracic spine and changes of more than 30° in lumbar lordosis are independent risk factors for the onset of PJK.When PJK occurs in the cervicothoracic spine,
Cecchinato, R +3 more
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JBJS Reviews, 2019
» Proximal junctional kyphosis, a complication associated with both pediatric and adult spinal deformity surgical procedures, is defined as a proximal junctional sagittal Cobb angle of ≥10° or a proximal junctional sagittal Cobb angle at least 10° greater than the preoperative measurement.» Several risk factors for the ...
Aleksander P. Mika +5 more
openaire +2 more sources
» Proximal junctional kyphosis, a complication associated with both pediatric and adult spinal deformity surgical procedures, is defined as a proximal junctional sagittal Cobb angle of ≥10° or a proximal junctional sagittal Cobb angle at least 10° greater than the preoperative measurement.» Several risk factors for the ...
Aleksander P. Mika +5 more
openaire +2 more sources