Anterior Lumbar Interbody Fusion (ALIF )

• Spondyloleisthesis-

Isolated alif in grade 1 leisthesis

Grade 2 onward leisthesis-posterior fixation to be accompanied.

• Iatrogenic Segmental Instability

Hypermobility of a lumbar-motion segment requires rigid fixation to improve fusion rate.so used in combination with posterior procedure

• Better visualization of disc space
• Safer graft placement
• Intact dorsal musculature

• Posterior structures / roots not visualized
• Risk of venous thrombosis
• Retrograde ejaculation
• Operative time is long
• Blood loss is more as compare to other fusion
• Hospitalization time is longer
• Total costs of surgery is more
• Risk of damage to sacral nerves by the anterior approach to L4-5-S1