Adjacent Segment Infection after Lumbar Fusion: A Case Report and the Literature Review

Figure 1

Flexion and extension lateral lumbar X-ray radiograph demonstrating segmental dynamic instability at L2-3 and L3-4 (a). Sagittal lumbar CT showing intervertebral space collapse and osteophyte at L4-5 and “gas sign” at L3-4 and L4-5 discs (b). Sagittal and axial T2-weighted lumbar MRI revealing serious central canal stenosis at L3-4, lumbar disc herniation and right lateral recess stenosis at L4-5, and moderate canal stenosis in L2-3 (c).

(a)

(b)

(c)