Osteoarthritis is a pathology with high prevalence in the world and is increasing due to sedentary lifestyles. Recent researches that claim for conservative treatment have shown the utility of genicular nerve blocks for relief of chronic knee pain.
Likewise, the ultrasound-guided technique has been more popular among professionals in recent years due to its low cost and safety.
This pilot study tries to evaluate if the infiltration of local anesthetic could avoid the use of corticosteroids with the secondary effects that they entail, therefore, it is carried out with the intention of estimating the size of the effect and the use of the variable response for later carrying out a clinical trial.
For this, we propose the comparative analysis of three randomized groups of patients (n=90), where all of them will perform a quadriceps strengthening exercise at home. Moreover, we will assess the reduction of pain through the visual analog scale (VAS) after the genicular nerve block with ultrasound-guided infiltration. Group 1 (n=30) will be infiltrated with local anesthetic and steroid, group 2 (n=30) with local anesthetic and group 3 (n=30), as a control group, will receive physiological saline. We will also record demographic data, functionality and mood using validated scales.