Publications by authors named "Ali Rajabian"

Objective: Radiofrequency thalamotomy (RF-T) is an established treatment for refractory tremor. It is unclear whether connectivity-guided targeting strategies could further augment outcomes. The aim of this study was to evaluate the efficacy and safety of MRI connectivity-guided RF-T in severe tremor.

View Article and Find Full Text PDF

Objective: Suboptimal lead placement is one of the most common indications for deep brain stimulation (DBS) revision procedures. Confirming lead placement in relation to the visible anatomical target with dedicated stereotactic imaging before terminating the procedure can mitigate this risk. In this study, the authors examined the accuracy, precision, and safety of intraoperative MRI (iMRI) to both guide and verify lead placement during frame-based stereotactic surgery.

View Article and Find Full Text PDF

Background: Deep brain stimulation (DBS) of the pedunculopontine nucleus (PPN) has been investigated for the treatment of levodopa-refractory gait dysfunction in parkinsonian disorders, with equivocal results so far.

Objectives: To summarize the clinical outcomes of PPN-DBS-treated patients at our centre and elicit any patterns that may guide future research.

Materials And Methods: Pre- and post-operative objective overall motor and gait subsection scores as well as patient-reported outcomes were recorded for 6 PPN-DBS-treated patients, 3 with Parkinson's disease (PD), and 3 with progressive supranuclear palsy (PSP).

View Article and Find Full Text PDF

Study Design: Cadaveric study on fresh unprocessed, nonpreserved, undyed specimens, which has not previously been reported.

Objective: Our aim was to explore the possible topographic correlation of the C5 nerve root with regards to its course and regional relation to C6 Chassaignac tubercle.

Summary Of Background Data: C5 palsy is reported amongst the most frequent postoperative complications of cervical spinal procedures.

View Article and Find Full Text PDF

Study Design: Cadaveric study on fresh unprocessed, nonpreserved, undyed specimens which have not previously been reported.

Objective: We aimed to perform surgically relevant exposures of the anterior cervical spine with particular attention to observing the potential vulnerabilities of the RLN on right and left.

Summary Of Background Data: Vulnerability of the RLN in the anterior cervical spine approach on the right versus left is the subject of ongoing debate.

View Article and Find Full Text PDF

Background Context: Although most cadaveric studies of the Recurrent Laryngeal Nerve (RLN) have focused on course variations, they have usually been done on preserved (fixed and embalmed) cadavers, which renders the RLN immobile and of less surgical landmark value.

Purpose: Our aim was to perform a thorough exposure in fresh cadavers, with the intention of investigating the Inferior Thyroid Artery (ITA) and Berry's ligament as reliable landmarks for the identification of the RLN in anterior cervical spine surgery.

Study Design/setting: Eight fresh cadavers had layer by layer dissections by two surgeons (one with extensive experience as anatomy dissector) from C2 to T2-T3, with particular attention to illustrating the surgical anatomy of the RLN pertinent to spine.

View Article and Find Full Text PDF

Background Context: The surgical treatment in spinal metastases has been shown to improve function and neurologic outcome. Unplanned hospital readmissions can be costly and cause unnecessary harm.

Purpose: Our aim was to first analyze the reoperation rate and indications for this revision surgery in spinal metastases from an academic tertiary spinal institute and, second, to make comparisons on outcome (neurology and survival) against patients who underwent single surgery only.

View Article and Find Full Text PDF