Awake resection of a brain tumor. Intraoperative functional mapping (language and motor testing during resection) allows real-time identification of eloquent areas, optimizing the extent of resection while preserving function. Indications: gliomas and lesions located in or near eloquent cortex.

Lumbar arthroplasty with disc prosthesis for refractory degenerative disc disease in younger patients. As an alternative to fusion, it restores disc height and preserves segmental mobility, limiting stress on adjacent levels. The video shows the procedure through an anterior approach.

Surgical treatment of symptomatic Tarlov cysts. Technique: limited sacral approach, fine-needle aspiration of the cyst, wall reinforcement with a synthetic dural sleeve. This approach treats the dilation without wide opening of the cyst wall or nerve-root sacrifice, and prevents refilling by addressing the underlying mechanism: weakness of the root sheath under cerebrospinal-fluid pulsation. Indications: symptomatic, disabling cysts, refractory to medical treatment, with radio-clinical concordance.

Intracranial aneurysm and surgical treatment. Anatomy: saccular dilation of the arterial wall, most often at bifurcations of the circle of Willis. Rupture risk assessed in particular according to aneurysm size, location and morphology. Surgical technique: craniotomy, microscopic dissection of the parent vessels, exclusion of the aneurysm by clipping the neck, with verification of patency of adjacent branches.

Posterior stabilization with facet cages following decompression for lumbar spinal stenosis. Technique: interfacet cage implantation directly into the joints, without pedicle screws or rods.

Surgical treatment of drug-resistant trigeminal neuralgia. Two techniques are presented: microvascular decompression of the neurovascular conflict at the nerve root entry zone, and percutaneous thermocoagulation of the Gasserian ganglion.

Resection of a sphenoid wing meningioma. Skull-base surgery in contact with critical neurovascular structures (optic nerve, internal carotid artery, cavernous sinus): approach, dissection strategy and management of critical anatomical relationships.