Background and objective.

The wide range of movement and strength of the hand have been key in the development of the human species given its ability to adapt according to functional demands. Knowledge of the anatomy and biomechanics of the structures that influence the generation of fingers force is crucial to understand the alterations that can cause its deterioration. Multiple studies have been conducted to assess the strength of each finger and its role in the functionality of the complex musculoskeletal system of the hand.

In this descriptive paper, basic concepts are reviewed and stages of design and construction of a three-dimensional device capable of individually quantify the strength of each finger for healthy patients evaluation is presented.

Methods.

Multiple measurements were performed in 20 healthy patients with a device that discriminates the strength of each finger, comparing the results with previously published studies.

Results.

The results of the different measures are comparable with each other and with the results in previous studies.

Conclusions.

The use of this new device offers the possibility of measuring the strength of the fingers individually, which constitutes a valuable and novel tool in the evaluation of healthy patients and patients with traumatic and non-traumatic pathologies, to quantify their degree of disability, postoperative evolution or its disease specifically to the involved finger and its impact on the global grip strength.

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