Background: Intra-articular fractures of the proximal interphalangeal (PIP) joint are challenging due to joint incongruity, stiffness, and functional impairment. Prolonged immobilization often leads to poor outcomes. The Suzuki frame fixation, also known as the pins and rubber traction system (PRTS), is a dynamic external fixator that maintains reduction by ligamentotaxis while allowing early mobilization. Methods: A prospective observational study was conducted at IGMC&RI, Puducherry, including 30 patients with unstable intra-articular PIP joint fractures between April 2022 and September 2022. Suzuki frame fixation was performed using percutaneous Kirschner wires and rubber bands. Early mobilization was encouraged from postoperative day one. Patients were evaluated using the Duruoz Hand Index (DHI), Visual Analog Scale (VAS) for pain, and range of motion (ROM) at 4, 8, and 12 weeks. Complications were recorded. Results: Of 30 patients (20 males, 10 females; mean age 32 years), 18 had PIP joint fractures, 8 DIP joint fractures, and 4 comminuted shaft fractures. Mean DHI scores improved from 60 at 4 weeks to 15 at 12 weeks. VAS decreased from 8 preoperatively to 1 at 12 weeks. Mean ROM improved from 30° at 4 weeks to 85° at 12 weeks. Minor complications included pin tract infections (4 patients) and mild stiffness (2 patients). Conclusion: Suzuki frame fixation is a simple, cost-effective, minimally invasive method that allows early mobilization and provides excellent functional outcomes for unstable intra-articular PIP joint fractures.