Background: The 1^ry event that begins and propels the procedure of spinal degeneration is generalized or segmental spinal instability. The 2^ry spinal events to 1^ry spinal instability have been determined as all identified consequences of spinal degeneration, including ligamentum flavum collapse, disc space reduction and osteophyte formation. Aim: To assess the effect of tranfacetal fixation of lumbar spine in degenerative spine disease. Patients and Methods: Fourteen cases with spinal segmental vertical instability associated with lumbar canal stenosis have been managed at Helmeya Military Hospital through the transfacetal implantation of screws into each articular assembly. Results: Throughout the follow-up period, all cases who were treated reported a high degree of satisfaction with the relief of their symptoms, and their spinal levels demonstrated robust bone stabilization. There were no complications associated with the insertion of the screws. Screw misplacement or implant rejection were not observed. Conclusions: The spinal segment can be securely fixed and stabilized by inserting screws into the firm and predominantly facets cortical bones of the spine.