en ارتوپدی فنی Orthosis and Prosthesis نامه به سردبير Letter to Editor <div style="text-align: justify;">Prosthetics and orthotics (P&O) are specialized disciplines in rehabilitation science. Orthoses include assistive devices that support, immobilize, or realign the trunk and limbs, while prostheses replace amputated limbs. The global demand for P&O services is estimated to double by 2050, especially in low- and lower-middle-income countries. According to the World Health Organization (WHO), rehabilitation coverage, especially regarding the P&O workforce, is insufficient to satisfy the growing need for assistive technology in the future.&nbsp;</div> Artificial limb, Orthosis, Service delivery, Tariff, Relative Value Units 127 130 http://irj.uswr.ac.ir/browse.php?a_code=A-10-1421-3&slc_lang=en&sid=1 Fatemeh Pol Maryam_pol68@yahoo.com 0000-0003-1100-1896 No Department of Prosthetics and Orthotics, School of Rehabilitation Sciences, Isfahan University of Medical Sciences, Isfahan, Iran. Reza Rezayatmand reza.rezayatmend@gmail.com 0000-0002-9907-3597 No Health Management and Economics Research Center, School of Management and Medical Informatics Sciences, Isfahan University of Medical Sciences, Isfahan, Iran. Ebrahim Sadeghi-Demneh sadeghi@rehab.mui.ac.ir 0000-0003-0590-8512 Yes Department of Prosthetics and Orthotics, Musculoskeletal Research Center, School of Rehabilitation Sciences, Isfahan University of Medical Sciences, Isfahan, Iran.