Fig. 7
From: Ectopic gas in the fibular graft after anterior cervical corpectomy and fusion
A 70-year-old man underwent anterior cervical corpectomy and fusion due to cervical spondylotic myelopathy (Group VI). A three-level corpectomy and a fibula graft were performed. The computed tomography image showed no ectopic gas (arrow) in the fibular graft 3 months after surgery (A). The gas appeared 6 months after surgery without sufficient bone fusion (B) but disappeared 2 years after surgery with sufficient bone fusion (C)