Safety and Efficacy in Pain Reduction of CT-Guided Screw Fixation for Post-laminectomy Surgery Segment Spinal Instability: A Monocentric Study of 24 Patients (2023-2026)

Centre Hospitalier Universitaire de Nice24 enrolled

Overview

Segmental instability of the spine following laminectomy or surgical arthrodesis is a common complication that often requires additional surgical intervention. CT-guided trans-facet screw fixation (TFF), performed under local anesthesia, is an innovative and minimally invasive technique that offers an alternative to open surgery under general anesthesia. This study aims to evaluate the effectiveness of CT-guided TFF fixation in reducing pain and improving daily activities in a population of 24 patients who have undergone prior spinal surgeries

Study Type

OBSERVATIONAL

Enrollment

Conditions

Segmental Instability Post-laminectomy

Interventions

No interventionOTHER

No intervention

Eligibility

Sex: ALLMin age: 41 YearsMax age: 93 Years

Medical Language ↔ Plain English

Inclusion Criteria: * Treated at the University Hospital of Nice between march 2023 and january 2026 with trans-facet arthrodesis for persistent lumbar segment instability following previous laminectomy surgery. * MRI or scintigraphy imaging showed signs suggestive of instability * Newly developed or worsening spondylolisthesis on successive examinations * Congestive arthropathy * Facet dislocation * Inflammatory disc disease (MODIC type 1 changes) Exclusion Criteria: * Inability to tolerate the prone position under local anesthesia. * Presence of anatomical variants precluding the technical feasibility of transfacet fixation.

Outcomes

Primary Outcomes

Change in pain levels between pre-intervention and post-intervention measurements.

Pain assessed using the Visual Analog Scale (VAS) from 1 to 10,

Time frame: Baseline) , 1 month post-intervention, 6 months post-intervention, and 1 year post-intervention.

Secondary Outcomes

Improvement in quality of life following the intervention.

EQ-5D-3L questionnaire

Time frame: Baseline ) 1 month post-intervention 6 months post-intervention and 1 year post-intervention.