Comprehensive Prosthetics & Orthotics (CPO) is among the largest Orthotic & Prosthetic service providers in the US with a wid ... e network of clinics across Illinois, Iowa, Indiana and Missouri. CPO offers its patients an extensive range of Prosthetics (Artificial Limbs) & Orthotics devices. Established more than a decade ago, our excellent patient care is the main reason why amputees choose CPO to aid them on their quest to Restore Mobility and Quality of Life. read more