Reduced Preoperative Cervical Spine Flexion-Extension Range of Motion Is Associated With the Development of Upper Thoracic Proximal Junction Kyphosis in Adult Spinal Deformity Patients

= 0.0085). On multivariable models for the development of S-PJK/PJF, reduced baseline cervical flexion and ROM were independent risk factors yielding threshold values of 22.8° and 48.2°, respectively.ConclusionMultivariable models for the development of S-PJK/PJF demonstrated that reduced baseline cervical ROM and flexion were independent risk factors yielding threshold values of 48.2° and 22.8°, respectively. All of S-PJK/PJF patients had preop flexion <22.8°. Flexion-extension radiographs provide a quick and easy option at a relatively low cost to offer additional information that may aid in surgical planning and shared decision making with the patient regarding potential outcomes.

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Publication Details

Journal
Global Spine Journal
Published
2026-05-08
DOI
https://doi.org/10.1177/21925682261449777
Primary Topic
Scoliosis diagnosis and treatment
Type
article
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article

Reduced Preoperative Cervical Spine Flexion-Extension Range of Motion Is Associated With the Development of Upper Thoracic Proximal Junction Kyphosis in Adult Spinal Deformity Patients

Ted Shi, Chun Wai Hung, Joseph M. Lombardi, Ronald A. Lehman et al.
Global Spine Journal
Scoliosis diagnosis and treatment
article

Reduced Preoperative Cervical Spine Flexion-Extension Range of Motion Is Associated With the Development of Upper Thoracic Proximal Junction Kyphosis in Adult Spinal Deformity Patients

Ted Shi, Chun Wai Hung, Joseph M. Lombardi, Ronald A. Lehman, Steven G. Roth, Justin K. Scheer, Fthimnir M. Hassan, Alexander Tuchman, N A Lee, Corey T. Walker, Zeeshan M. Sardar, Lawrence G. Lenke
article en

Abstract

= 0.0085). On multivariable models for the development of S-PJK/PJF, reduced baseline cervical flexion and ROM were independent risk factors yielding threshold values of 22.8° and 48.2°, respectively.ConclusionMultivariable models for the development of S-PJK/PJF demonstrated that reduced baseline cervical ROM and flexion were independent risk factors yielding threshold values of 48.2° and 22.8°, respectively. All of S-PJK/PJF patients had preop flexion <22.8°. Flexion-extension radiographs provide a quick and easy option at a relatively low cost to offer additional information that may aid in surgical planning and shared decision making with the patient regarding potential outcomes.

Global Spine Journal
Cedars-Sinai Medical Center (US), Rush University Medical Center (US), Houston Methodist (US), Columbia University Irving Medical Center (US), University of Florida (US)
Peace, Justice and strong institutions
Openalex Percentile: Top 5%
Scoliosis diagnosis and treatment
DOIOpen Access PDFOpenAlex
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Reduced Preoperative Cervical Spine Flexion-Extension Range of Motion Is Associated With the Development of Upper Thoracic Proximal Junction Kyphosis in Adult Spinal Deformity Patients — Ted Shi, Chun Wai Hung, et al. · Global Spine Journal (2026) | TGRS Research Map | TGRS