Fig. 6
From: Ectopic gas in the fibular graft after anterior cervical corpectomy and fusion
An 82-year-old man underwent anterior cervical corpectomy and fusion due to cervical spondylotic myelopathy (Group V). A two-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 (B) and remained 20 months after surgery (C) without sufficient bone fusion