Table 1 Summary of study characteristics
From: Annular closure device for disc herniation: meta-analysis of clinical outcome and complications
Reference: | Institution | Country | Study type | Lumbar Discectomy | Average Follow up | |
|---|---|---|---|---|---|---|
With ACD/AR | Without ACD/AR | |||||
Bailey et al. [28] | 34 Medical Centres | United States | P, R | 478 | 249 | 24Â months |
Klassen et al. [36] | 21 Medical Centres | Europe | P, R | 272 | 278 | 90Â days |
Parker et al. [30] | 2 Universities Medical Institution | United States | P, NR | 31 | 46 | 24Â months |
Vukas et al. [37] | Dubrava University Hospital and Rijeka University Hospital Centre | Croatia | P, NR | 30 | 72 | 24Â months |