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Figure 7: Schematic diagram showing the fundamental principle of DCER. (a) CT image of severe BI with AAD. (c) Once the spacer is added, the BI gets corrected but not the AAD. (b) Correction achieved once DCER is performed. (d) The same procedure explained schematically. Once compression between the occiput-C1 and C2 is provided, this results in extension of the occipito-C1 and C2 joint leading to reduction in both AAD and also residual BI

Figure 7: Schematic diagram showing the fundamental principle of DCER. (a) CT image of severe BI with AAD. (c) Once the spacer is added, the BI gets corrected but not the AAD. (b) Correction achieved once DCER is performed. (d) The same procedure explained schematically. Once compression between the occiput-C1 and C2 is provided, this results in extension of the occipito-C1 and C2 joint leading to reduction in both AAD and also residual BI