The Joint Jack Company

The Joint Jack Company specializes in professional-grade finger splints and therapeutic devices for hand and upper extremity rehabilitation. Founded by surgeons and perfected by hand therapists, the company manufactures static progressive splinting systems and finger extension/flexion devices designed to address PIP joint stiffness, flexion deformities, and complex conditions including Complex Regional Pain Syndrome (CRPS) and Reflex Sympathetic Dystrophy (RSD). Products are designed for use in clinical settings, therapy practices, and home exercise programs. The company emphasizes evidence-based design informed by hand surgery and occupational/physical therapy professionals. All products are manufactured in the USA. The product portfolio includes both manual splinting devices and instrumented systems for patient monitoring and treatment optimization. The company serves surgeons, hand therapists, occupational therapists, physical therapists, and patients requiring upper extremity rehabilitation.