Therapeutic Level II. See Instructions for Authors for a complete description of levels of evidence.

Case: An 18-year-old man complained about persistent wrist pain and functional impairment due to intra-articular malunion, 1 year after volar plating of a distal radius fracture. We designed and produced patient-specific surgical guides (PSSGs) in-house with a benchtop three-dimensional printer to perform an arthroscopy-assisted intra-articular osteotomy of the radial column without dorsal arthrotomy. The procedure was performed without complications. After 1 year, there was no osteoarthritis and the patient's wrist function was practically normalized. Conclusions: Virtual surgical planning, design, and production of PSSGs were feasible without consultation of an external medical engineering company and without dorsal arthrotomy.