Combined Contrast Therapy and Intermittent Compression vs Whirlpool Therapy in Post-Traumatic Hand and Wrist CRPS: A Randomized Controlled Trial

Complex Regional Pain Syndrome Type 1 (CRPS-I) is a condition that may develop after upper extremity trauma, surgical interventions, or central nervous system disorders, leading to chronic pain and functional impairment. Hydrotherapy modalities such as whirlpool and contrast bath therapy are commonly used; however, comparative evidence with combined thermal and compression-based systems remains limited.

Combined contrast therapy with intermittent compression is a non-invasive intervention delivered using the Game Ready MED4 Elite device, which integrates thermal therapy (cold-warm) with intermittent pneumatic compression (IPC). Evidence, particularly from postoperative orthopedic settings, suggests that this approach may reduce pain and edema and promote functional recovery. Cryotherapy reduces inflammation and vascular permeability, thermotherapy promotes vasodilation and tissue relaxation, and intermittent pneumatic compression (IPC) enhances venous and lymphatic return, supporting regional circulation.

The whirlpool method is a commonly used adjunctive physical therapy modality in CRPS-I treatment, involving immersion of the affected extremity in circulating water at 38-40°C. This technique provides both thermal and mechanical stimulation, promoting regional circulation, reducing muscle spasm, and facilitating edema drainage. Additionally, the gentle massaging effect of water turbulence may contribute to pain modulation and tissue relaxation.