Feasibility of percutaneous interbody fusion as a treatment for adjacent vertebral stress fracture of ankylosing spondylitis with intervertebral pseudarthrosis formation
Authors Tian QH, Wang T, Wu CG, Li MH, Cheng YS
Received 31 August 2017
Accepted for publication 22 May 2018
Published 29 August 2018 Volume 2018:11 Pages 1673—1678
Checked for plagiarism Yes
Review by Single-blind
Peer reviewer comments 4
Editor who approved publication: Dr Katherine Hanlon
Qing-Hua Tian, Tao Wang, Chun-Gen Wu, Ming-Hua Li, Ying-Sheng Cheng
Department of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai 200233, People’s Republic of China
Objective: The objective of this study was to evaluate the feasibility of percutaneous interbody fusion (PIF) using bone cement for adjacent vertebral stress fracture of ankylosing spondylitis (AS) with intervertebral pseudarthrosis formation.
Patients and methods: From January 2010 to February 2018, eleven consecutive patients (seven men and four women; median age, 56.09±13.64 years; age range, 33–80 years) who underwent PIF as a treatment for adjacent stress fracture of AS with intervertebral pseudarthrosis formation were retrospectively analyzed. The Visual Analog Scale (VAS) and Oswestry Disability Index (ODI) score were assessed before and after the procedure; meanwhile, the procedure duration, length of hospital stay and complications were assessed. Moreover, anterior/lateral and computed tomography (CT) scans were utilized for the assessment of bone cement distribution and interbody fusion.
Results: Technical success was achieved in all patients, and they experienced good interbody fusion with bone cement after PIF. Mean VAS scores declined significantly from 8.82±0.87 before the procedure to 3.36±0.67 1 day after the procedure and 2.73±0.65 1 month after the procedure, while the mean ODI scores decreased from 82.91±3.02 before treatment to 31.64 ± 2.66 1 day after treatment and 30.00±3.10 1 month after treatment. The mean procedure duration was 49.73±6.12 minutes (range, 42–65 minutes). The average length of hospital stay was 7.09±1.45 days (range, 5–10 days). Extraosseous cement leakage occurred in one case without causing any clinical complications.
Conclusion: PIF is a feasible therapeutic technique for adjacent vertebral stress fracture of AS with intervertebral pseudarthrosis formation, which can significantly relieve pain and stabilize the fractured spine.
Keywords: percutaneous interbody fusion, adjacent vertebral stress fracture, ankylosing spondylitis, pseudarthrosis, feasibility, visual analog scale, Oswestry Disability Index
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