Anterior Spinal Access Surgery (ALIF)

The aim is safe exposure of the anterior lumbar spine so the spinal surgeon can perform the fusion, with the vessels protected throughout and expert repair immediately available in the rare event of injury. The anterior approach is chosen by the spinal surgeon because it gives direct access to the disc space and allows placement of a large implant. The vascular surgeon creates and closes the surgical corridor; the spinal surgeon performs the disc removal, implant placement and fusion.

• Patients undergoing ALIF or a related anterior spinal procedure at a level requiring vascular mobilisation

The spinal indication is determined by the spinal surgeon. The vascular assessment focuses on whether the exposure can be achieved safely given the patient's anatomy, prior surgery and vessel disease.

Why a vascular access surgeon is involved

The aorta and vena cava divide into the iliac vessels directly in front of the lower lumbar spine, and these vessels and their branches must be mobilised carefully to reach the disc space. Previous abdominal surgery, vascular disease and the spinal level being treated all influence the complexity of the exposure.

The combined team reviews spinal imaging and may request CT angiography when the anatomy or vascular disease needs clarification. Previous abdominal operations, hernias, medical history and blood-thinning medication are assessed. Standard preoperative instructions on fasting and medications come from the surgical teams in writing; anticoagulants require a specific plan.

Previous abdominal surgery and vascular anatomy

Previous abdominal or pelvic surgery can create scar tissue around the major vessels and may change whether an anterior approach is appropriate. CT imaging can also identify calcification, aneurysmal change or unusual vessel anatomy. These findings are reviewed before surgery so the spinal and vascular surgeons can agree on the safest exposure, positioning and contingency plan.

Through an abdominal incision, the abdominal contents are moved aside, staying outside the bowel cavity where possible. The major vessels are identified, protected and mobilised to expose the spine, and held safely while the spinal surgeon completes the fusion. The vascular surgeon then checks the vessels and closes the access incision.

Collaborative care

Close coordination between the spinal and vascular surgeons allows the exposure and spinal reconstruction to be planned as one operation.

Hospital recovery is determined mainly by the spinal procedure. The abdominal wound, bowel function, circulation to the legs and any signs of bleeding or DVT are monitored. Wound care and activity advice cover both the abdominal incision and the spinal reconstruction, and follow-up is shared between the spinal and vascular teams as needed.

• Bleeding, including major vessel injury requiring immediate repair or transfusion (uncommon)
• Injury to the aorta, vena cava or iliac vessels
• Venous thrombosis and leg swelling
• Bowel or ureteric injury
• Sympathetic nerve injury and, in men, retrograde ejaculation
• Incisional hernia
• Infection

Having a vascular surgeon perform the exposure exists precisely to minimise these access-related risks and to deal with them immediately if they occur.

Alternative spinal approaches include posterior or lateral surgery, and some patients may be managed without fusion. The choice of ALIF is made by the treating spine surgeon according to the spinal level, deformity, previous operations and the goals of reconstruction. The vascular surgeon's role is to provide safe access to the front of the spine.

Previous abdominal surgery, vascular anatomy, body habitus and disease of the aorta or iliac vessels can affect whether anterior access is suitable. Preoperative imaging may be reviewed to identify vessel position and any additional risk. Patients should understand that the spinal procedure and the access procedure have distinct risks and are performed collaboratively.

Recovery is largely determined by the spinal operation, but the abdominal incision and mobilisation of major vessels also influence early care. The consent discussion should cover bleeding, vascular injury, thrombosis, bowel or ureteric injury, wound problems and, in men, the uncommon risk of retrograde ejaculation. Questions about fusion success and neurological recovery remain primarily for the spine surgeon.

Yarra Vascular Surgeons works collaboratively with Melbourne spinal surgeons to provide anterior exposure for ALIF and related procedures, manage vascular risk and address unexpected vessel injury, with preoperative assessment tailored to previous surgery and individual anatomy.

Spinal surgeons can contact our rooms to arrange vascular access support for anterior lumbar procedures, including preoperative anatomical review and combined theatre planning.