Clinical Research Directory

Inclusion Criteria: * Being between the ages of 40 and 85, * Being able to understand verbal and written information given in Turkish, * Being able to speak and understand Turkish, * Being subjected to unilateral TKA surgery due to the diagnosis of Primary Knee osteoarthritis Exclusion Criteria: * Patients planned for revision knee prosthesis surgery, * Patients previously diagnosed with psychiatric disorders, * Patients who have undergone major surgery on the extremity where TKA will be applied, * Patients with comorbid diseases such as rheumatoid arthritis or cancer, * Patients with a score above 3 according to the American Society of Anesthesiologists (ASA) scoring, * Patients with neurological diseases that cause functional disability, * Patients with flexion limitation of more than 45 degrees and extension limitation of more than 20 degrees, * Patients who have to use hypnotic or anxiolytic drugs regularly, * Patients with alcohol or drug addiction, * Patients with bleeding disorders * Patients with uncontrolled diabetes