Abstract
Objective
The objective of this study was to systematically estimate the effectiveness and safety of annulus closure device (ACD) implantation in discectomy for patients with lumbar disc herniation (LDH).
Methods
A systematic search was performed on PubMed, EMBASE and the Cochrane Library for randomized controlled trial (RCT) from inception until April 16, 2022. Trials which investigated comparisons between with and without ACD implantation in discectomy for LDH patients were identified.
Results
In total, five RCTs involving 2380 patients with LDH underwent discectomy were included. The included patients were divided into ACD group and control group (CTL). Significant differences were found in the rate of re-herniation (ACD: 7.40%, CTL: 17.58%), reoperation (ACD: 5.39%, CTL: 13.58%) and serious adverse event (ACD: 10.79%, CTL: 17.14%) between ACD group and CTL group. No significant difference was found in VAS-BACK, VAS-LEG, ODI and SF-12 PCS between ACD and CTL. The surgical time of ACD was longer than CTL with statistical significance. In subgroup analyses based on discectomy type, significant differences were found in the rate of re-herniation (ACD: 10.73%, CTL: 21.27%), reoperation (ACD: 4.96%, CTL: 13.82%) and serious adverse event (ACD: 7.59%, CTL: 16.89%) between ACD and CTL in limited lumbar discectomy (LLD).
Conclusion
Discectomy either with or without ACD implantation is considered to achieve similar clinical outcomes. Whereas, the ACD implantation in LLD is associated with lower re-herniation and reoperation rate but prolonged surgical time for LDH patients. Researches on cost-effectiveness and effect of ACD implantation in different discectomy are needed in the future.
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Abbreviations
- ACD:
-
Annulus closure device
- LDH:
-
Lumbar disc herniation
- LLD:
-
Limited lumbar discectomy
- SCIE:
-
Science citation index expanded
- WoS:
-
Web of Science
- PRISMA:
-
Preferred reporting items for systematic reviews and meta-analyses
- RCT:
-
Randomized controlled trial
- MED:
-
Micro-endoscopic discectomy
- PED:
-
Percutaneous endoscopic discectomy
- UBE:
-
Unilateral biportal endoscopic discectomy
- VAS:
-
Visual analogue scale
- SEA:
-
Serious adverse event
- ODI:
-
Oswestry disability index
- SF-12 PCS:
-
Physical component summary of 12-item short-form health survey
- MD:
-
Mean difference
- 95% CI:
-
95% Confidence interval
- OR:
-
Odds ratio
- ALD:
-
Aggressive lumbar discectomy
- VEPC:
-
Vertebral endplate changes
- NA:
-
Not available
- Exp:
-
Experimental group
- CTL:
-
Control group
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Acknowledgements
This study was supported by National Natural Science Foundation of China (NO: 81871803). The funder had no role in the study design, data collection and analysis, decision to publish, or preparation of the manuscript.
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Li, WS., Li, GY., Yan, Q. et al. The effectiveness and safety of annulus closure device implantation in lumbar discectomy for patients with lumbar disc herniation: a systematic review and meta-analysis. Eur Spine J 32, 2377–2386 (2023). https://doi.org/10.1007/s00586-023-07629-0
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DOI: https://doi.org/10.1007/s00586-023-07629-0