Microsurgical clip reconstruction techniques for aneurysms with significant calcified neck

Area of Science:

• Neurosurgery
• Vascular Surgery
• Medical Device Technology

Background:

• Surgical clipping of intracranial aneurysms with calcified necks presents a risk of parent artery injury due to clip slippage or atheroma displacement.
• Calcified atheroma can compromise parent arteries during standard aneurysm clipping procedures.
• Existing techniques may not adequately address the challenges posed by calcified aneurysm necks.

Observation:

• A common complication involves clip slippage or atheroma encroachment on parent arteries at calcified aneurysm necks.
• A reconstructive clip technique utilizing a fenestrated clip and a straight clip is demonstrated.
• The technique involves placing a fenestrated clip over the thickest calcification and a straight clip proximally.

Findings:

• The fenestrated clip reconstructs the distal parent artery-aneurysm junction, accommodating calcification.
• The straight clip secures the proximal junction, allowing the calcified walls to pinch the aneurysm closed.
• This method achieves aneurysm occlusion while preserving parent artery integrity.

Implications:

• This reconstructive technique offers a solution to prevent parent artery injury during aneurysm clipping in challenging calcified cases.
• It enhances surgical safety and efficacy in treating complex intracranial aneurysms.
• The described method may reduce the incidence of postoperative complications related to parent artery compromise.