A PLIF/TLIF cage system is a spinal implant used during Posterior Lumbar Interbody Fusion (PLIF) and Transforaminal Lumbar Interbody Fusion (TLIF) surgeries. The "cage" acts as a structural spacer inserted into the disc space to restore normal disc height, relieve pressure on pinched nerves, and hold the vertebrae in place while artificial or natural bone graft material fuses them together