This chapter explores the intersection of three-dimensional printing technology and biomechanical engineering in advancing the understanding and treatment of hand mechanics. It explores the principles of three-dimensional printing and bioscaffolding, highlighting their use in prosthetics, tissue engineering, and surgical planning. Focusing on clinical relevance, it highlights recent innovations, case studies, and the potential of three-dimensional printing and scaffolding to overcome challenges in hand mechanics. Finally, it discusses future directions and emerging technologies, offering a comprehensive view of this transformative field and instilling hope for its future.