Anterior lumbar interbody fusion (ALIF) is a surgical procedure performed through the front of the abdomen to treat degenerative conditions of the lower spine. It allows direct access to the disc space for restoration of disc height and alignment while stabilizing the spine.
Quick Facts:
- Performed through the front of the abdomen
- Restores disc height and spinal alignment
- Avoids major back muscle disruption
- Often combined with posterior stabilization when needed
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👉 ALIF Surgical Information Packet
WHAT IS ALIF?
ALIF is a fusion procedure that involves:
- Accessing the spine through the front of the body
- Removing a damaged disc
- Placing a large spacer (interbody cage) into the disc space
- Allowing the bones to fuse together over time
This approach provides direct access to the disc and allows for:
- Better restoration of disc height
- Improved alignment
👉 The goal is to stabilize the spine while restoring normal structure
WHY IS ALIF PERFORMED?
ALIF is used when restoring disc height and alignment is important.
Common Indications
- Degenerative disc disease
- Spondylolisthesis
- Foraminal stenosis due to disc collapse
- Revision surgery
- Sagittal alignment correction
👉 It is particularly useful when anterior column support is needed
SYMPTOMS THAT MAY REQUIRE ALIF
Common Symptoms
- Low back pain
- Leg pain (sciatica)
- Numbness or tingling
- Weakness
Typical Pattern
- Combination of back pain and nerve-related symptoms
- Symptoms related to disc collapse or instability
🚨 When Surgery May Be More Urgent
- Progressive neurologic deficits
- Severe nerve compression
- Loss of bowel or bladder control
HOW IS THE PROCEDURE PERFORMED?
Step-by-Step Overview
- Anesthesia
- Performed under general anesthesia
- Anterior Approach
- Access through the abdomen
- Often performed with an access surgeon
- Disc Removal
- The damaged disc is removed
- Interbody Cage Placement
- A large spacer is placed into the disc space
- Restores disc height and alignment
- Stabilization
- May include screws or additional posterior instrumentation
👉 The approach allows for powerful structural correction and support
OUR APPROACH
We use ALIF when an anterior approach provides clear advantages.
- We evaluate whether disc height restoration and alignment are key goals
- We carefully select patients based on anatomy and pathology
- We coordinate with access surgeons when needed
- The goal is durable stability with improved spinal mechanics
👉 ALIF is a strong option when alignment and disc restoration matter
WHAT TO EXPECT
Before Surgery
- MRI, CT, and standing X-rays
- Likely Bone mineral density scan
- Evaluation of alignment and disc height – likely scoliosis x-rays
- Planning of levels and approach
Day of Surgery
- Performed under general anesthesia
- Often involves a combined surgical team
After Surgery
- Hospital stay is common
- Gradual improvement in symptoms
- Recovery over weeks to months
- Fusion develops over time
OUTCOMES & RISKS
Potential Benefits
- Restoration of disc height
- Improved alignment
- Relief of nerve compression
- Reduced back and leg pain
- Avoidance of posterior muscle disruption
Risks
- Infection
- Bleeding
- Injury to surrounding structures (blood vessels, abdominal structures)
- Nerve injury
- Failure to fuse
- Need for additional stabilization
👉 Outcomes depend on appropriate selection and surgical execution
FREQUENTLY ASKED QUESTIONS
How is ALIF different from TLIF?
ALIF approaches the spine from the front, while TLIF is performed from the back.
Will I need screws in my back as well?
Sometimes. Additional stabilization may be required.
Is this a minimally invasive procedure?
It avoids back muscle disruption but still involves a significant approach.
How long does fusion take?
Fusion develops over several months.
FOR REFERRING PHYSICIANS
- Refer patients with:
- Degenerative disc disease
- Spondylolisthesis
- Foraminal stenosis with disc collapse
- Sagittal imbalance
- Imaging:
- MRI lumbar spine
- Standing X-rays for alignment
- CT when needed
- Consider:
- ALIF vs TLIF vs OLIF based on anatomy and goals