IRCT20240122060766N1 IRCT 2024-02-16 Islamic Azad University Investigating the therapeutic effect of thumb spica cast after De quervain's disease injection on the recovery rate of patients گچ اسپایکا، شست، بیماری دکرون Investigating the therapeutic effect of thumb spica cast after De quervain's disease injection on the recovery rate of patients 2024-01-23 anticipated 142 Complete https://irct.ir/trial/75106 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Used, Assignment: Other, Purpose: Treatment, Randomization description: Patients are randomly assigned to the study so that the patient and the doctor both do not know about the selected treatment group, Blinding description: Patients with dekron disease visiting the Bowali hospital in Tehran who are eligible to enter the study will be randomly selected and randomly divided into two groups of witnesses and interventions, so that the patient and the researcher will not know about the treatment received to relieve the symptoms of the thumb. 2-3 De quervain disease. Intervention 1: Intervention group: i‏ntervention group: thumb spica plaster after injection treatment methyl prednisolone acetate (1 cc) with 1 cc lidocaine 2%. Intervention 2: Control group:injectable treatment of methyl prednisolone acetate (1 cc) with 1 cc of lidocaine 2%. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is No more information