Targeted anterior expansion of the cervical facet joints achieves indirect foraminal decompression and reduces spondylolisthesis via a posterior approach: a cadaveric study

Table 1 Impact of CeLFI insertion in 12 cadavers with and without cervical spondylolisthesis, on the lordotic C2–7 angle, based on lateral C-spine radiograph

CeLFI, cervical expandable facet implant; CSPL, cervical spondylolisthesis
The (-) sign indicates increased lordotic angle. For example, cervical lordosis increased by 3° in cadaver 4. In contrast, the (+) sign indicates reduced lordosis; for example, lordosis reduced by 6° in cadaver 11
^**Measurement was not possible owing to difficulty in visualizing the lower endplate of C7 clearly on lateral radiograph
^***Measurement of C2–7 lordotic angle in Cadaver 12 was not included here because of the significant change observed in the cervical spine position during lateral radiograph acquisition before and after CeLFI insertion

ISSN: 1749-799X