Reproducibility Measuring the Angle of Proximal Junctional Kyphosis Using the First or the Second Vertebra Above the Upper Instrumented Vertebrae in Patients Surgically Treated for Scoliosis

Sacramento-Dominguez, Cristina; Vayas-Díez, Raquel; Coll-Mesa, Luis; Piñera, Ángel R.; Machado-Calvo, Manuel; Pinilla, Javier Ara; Sosa, Alejandro Jiménez; López, Guillermo de la Barreda

doi:10.1097/brs.0b013e3181b61955

Cited by 37 publications

(12 citation statements)

References 17 publications

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“…Sacramento-Dominguez et al [16] evaluated the reproducibility of measuring the Cobb angle of PJK using either the first or the second vertebra above the UIV in 19 scoliosis patients. Intra-surgeon concordance correlation coefficients ranged from 0.78 to 0.92 (high to very high reproducibility) and comparative inter-surgeon concordance correlation coefficients ranged from 0.55 to 0.80 (moderate to high reproducibility).…”

Section: Definitionmentioning

confidence: 99%

Proximal junctional kyphosis following adult spinal deformity surgery

2014

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Section: Definitionmentioning

confidence: 99%

Proximal junctional kyphosis following adult spinal deformity surgery

2014

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“…Although they demonstrated moderate to very high intra-and inter-rater reliability, the authors could not conclude which of the two vertebrae is the better landmark to use for measuring PJK [36]. Further work has recently shown that radiographic measurement of kyphosis from UIV to UIV+2 is highly repeatable, with or without presence of PJF and at either upper thoracic or thoracolumbar junction [37].…”

Section: Definition Epidemiology and Clinical Significancementioning

confidence: 99%

“…Sacramento-Dominguez et al [36] evaluated the reproducibility of using the UIV+1 and UIV+2 to measure PJK. Although they demonstrated moderate to very high intra-and inter-rater reliability, the authors could not conclude which of the two vertebrae is the better landmark to use for measuring PJK [36].…”

Section: Definition Epidemiology and Clinical Significancementioning

confidence: 99%

Proximal junctional kyphosis and failure—diagnosis, prevention, and treatment

Nguyễn

Kong

Hart

2016

Curr Rev Musculoskelet Med

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Technical advancements have enabled the spinal deformity surgeon to correct severe spinal mal-alignment. However, proximal adjacent segment pathology (ASP) remains a significant issue. Examples include proximal junctional kyphosis (PJK) and proximal junctional failure (PJF). Agreement on the definition, classification, and pathophysiology of PJK and PJF remains incomplete, and an understanding of the risk factors, means of prevention, and treatment of this problem remains to be elucidated. In general, PJK is a relatively asymptomatic radiographic diagnosis managed with patient reassurance and monitoring. On the other hand, PJF is characterized by mechanical instability, pain, and more severe kyphosis, with potential for neurologic compromise. Patients who develop PJF more often require revision surgery than those with PJK. This chapter will review the current understanding of PJK and PJF.

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“…He received 2-staged Smith-Petersen osteotomies with partial rib resections bilaterally, cervical traction, cantilever kyphosis correction, manual intraoperative reduction, and instrumented posterior fusion extension. (5) compression fracture at the upper instrumented vertebra, (6) instrumentation failure at the proximal construct, or (7) facet violation. 1 , 15 , 16 The development of PJK is unknown but is likely multifactorial.…”

Section: Discussionmentioning

confidence: 99%