Figure 2. A 38-year-old woman who underwent 1-level corpectomy with a nano-hydroxyapatite/polyamide66 strut for cervical reconstruction.

The preoperative cervical X-ray film (A) and MRI (B) revealed C5/6 disc herniation and segmental cervical kyphosis. The patient underwent a C5 corpectomy and fusion with an n-HA/PA66 strut (C). The strut and internal fixation were in position after 1 year of follow-up (D). The lateral X-ray film (E) and 3D-CT (F) scan indicated that the autogenous bone granules filling the strut had achieved bony fusion with adjacent endplates at the 4-year follow-up. The radiographic films revealed satisfying bony fusion with no obvious strut migration or subsidence at the 6-year follow-up ; no radiolucent gap occurred at the interface between the strut and the adjacent vertebrae (G,H).