Is the antepsoas oblique lumbosacral interbody fusion safe in patients with aortoiliac calcification?

While among patients with 3 or more fused levels ( N = 358), the association between AAC and complications did not reach statistical significance, though a consistent trend toward increased complications persisted (adjusted OR 1.78, 95% CI 0.99–3.18, p = .053) - suggesting that the effect of AAC on complications may be more pronounced in shorter-segment fusions with a less clear relationship in longer constructs.

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