This clinical study focuses on patients diagnosed with the condition known as cervical radiculopathy. The main research question addresses whether the combination of cervical and sacroiliac mobilization enhances clinical treatment outcomes. The trial evaluates interventions consisting of cervical manual-focused manual therapy compared to extended regional manual therapy. The extended regional manual therapy protocol incorporates a combined multi-region approach. The project was sponsored and organized by Fenerbahce University and Istinye University. According to the trial record, this study has officially been completed.