| Sumario: | This is a case report. Persons with rheumatoid arthritis frequently use assistive devices as a compensatory strategy to enhance occupational performance when client factors such as hand weakness, pain, and/or limited range of motion interfere with activity performance. Computer-aided design software and 3D printers are increasingly being used to design and make assistive devices. This case report describes a client-centered approach in the selection, three-dimensional (3D) printing, and evaluation of outcomes for three assistive devices to enhance occupational performance in a subject with rheumatoid arthritis. Outcome measures used in this study included the Patient-Specific Functional Scale, Numeric Pain Rating Scale, and Quebec User Evaluation of Satisfaction with Assistive Technology V2.0. Activity analysis along with the subject input informed a client-centered approach in the selection, color, and design modifications of 3D printed assistive devices made for the study. The subject reported decreased pain, improved occupational performance, and satisfaction with use of 3D printed assistive devices to open plastic beverage bottles, unlock/lock doors, and write. 3D printing offers therapists a means to design and make assistive devices that can be cost-effective, customizable, and client-centered. Assistive devices made with 3D printing resulted in positive outcomes in a subject with rheumatoid arthritis. • This case report presents a description of a client-centered process in the selection and three-dimensional (3D) printing of assistive devices to enhance hand-related occupational performance in a subject with rheumatoid arthritis. • With use of 3D printed assistive devices to open plastic beverage bottles, unlock/lock doors, and write, the subject reported decreased pain, improved occupational performance, and satisfaction with the devices. • Total combined material cost of thermoplastic filament to 3D print the three assistive devices issued to the subject was $0.94USD.
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