Posterior Ligamentous Augmentation is Associated with Reduced Rates of Proximal Junctional Kyphosis and Failure in Adult Spinal Deformity Surgery: A Systematic Review and Meta-Analysis of 1,333 Patients.

IF 2.6 2区医学 Q2 CLINICAL NEUROLOGY

Spine Pub Date : 2025-02-14 DOI:10.1097/BRS.0000000000005299

Pavlos Texakalidis, Stavros Matsoukas, Mykhaylo Krushelnytskyy, Kevin Swong, Najib El Tecle, Tyler R Koski, Nader S Dahdaleh

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Abstract

Study design: Systematic review and meta-analysis.

Objective: To evaluate the impact of posterior ligamentous augmentation (PLA) on proximal junctional kyphosis (PJK) and proximal junctional failure (PJF) in adult spinal deformity (ASD) surgery.

Summary of background data: Adult spinal deformity (ASD) surgery is frequently complicated by PJK and PJF, with reported rates ranging from 17% to 61.7%. Techniques such as PLA, which involves spinous process or sublaminar tethering at the upper instrumented vertebra (UIV) +1 or +2, have been investigated as potential methods to mitigate these complications.

Methods: A systematic literature review and meta-analysis was performed according to the PRISMA guidelines. Most studies defined PJK as an increase of ≥10° or ≥20° in the sagittal Cobb angle from UIV to UIV+2 compared to preoperative measurements. PJF was defined as PJK necessitating revision surgery.

Results: Eight comparative studies comprising 1,333 patients (PLA: 579; no PLA: 754) were included. The mean age ranged from 55 to 68.6 years across studies, with a mean follow-up period of 17.6 to 31.2 months. There were no significant differences between the PLA and no PLA groups in terms of age (MD 2.53; 95% CI -0.28 to 5.34, I²: 64.8%), BMI (MD 1.03; 95%CI -0.87 to 2.93, I²:69%), or sagittal vertical axis (SVA) preoperatively (MD 3.92; 95% CI -1.90 to 9.75, I²:73.1%) and postoperatively (MD -1.54; 95%CI -4.10 to 1.01, I²: 56.2%). However, the PLA group demonstrated significantly lower odds of developing PJK compared to the no PLA group (PLA: 25.8%; no PLA: 28.8%; OR: 0.54; 95%CI 0.34 to 0.85, I²: 37.4%). Furthermore, PLA was associated with significantly lower odds of PJF (PLA: 3.3%; no PLA: 12.3%; OR: 0.23; 95%CI 0.12 to 0.47, I²: 17.9%).

Conclusions: PLA in ASD surgery is associated with reduced odds of developing PJK and PJF over a follow-up period of 17.6 to 31.2 months.

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来源期刊

Spine 医学-临床神经学

CiteScore

5.90

自引率

6.70%

发文量

361

审稿时长

6.0 months

期刊介绍： Lippincott Williams & Wilkins is a leading international publisher of professional health information for physicians, nurses, specialized clinicians and students. For a complete listing of titles currently published by Lippincott Williams & Wilkins and detailed information about print, online, and other offerings, please visit the LWW Online Store. Recognized internationally as the leading journal in its field, Spine is an international, peer-reviewed, bi-weekly periodical that considers for publication original articles in the field of Spine. It is the leading subspecialty journal for the treatment of spinal disorders. Only original papers are considered for publication with the understanding that they are contributed solely to Spine. The Journal does not publish articles reporting material that has been reported at length elsewhere.