Prosthetic fingers — sometimes called finger prosthetics, artificial fingers, or a finger prosthesis — are custom-built devices designed to replace a missing or non-functional finger. Exactly how a prosthetic finger works depends heavily on the type you choose, the level of your amputation, and how much natural movement remains in your hand. Below, we walk through how each part of the process actually works — from how the device attaches, to how finger movement is achieved, to what can be customized for your specific hand.
Attachment:
Prosthetic fingers are attached to the remaining part of the hand or arm through various methods such as straps, adhesive, suction, or by being surgically implanted. In our experience, the attachment method is usually the first decision we make with a patient, since it affects comfort during daily wear more than almost any other design choice.
Movement:
Most prosthetic fingers are designed to mimic the movement of natural fingers to some extent. This can be achieved through different mechanisms: Passive prosthetics: These are non-functional and provide a cosmetic replacement for missing fingers. They are often made of silicone or other materials to match the appearance of the remaining fingers. Body-powered prosthetics: These use cables or harnesses connected to the user’s body movements, typically involving the wrist or other parts of the arm, to control the movement of the prosthetic fingers. Myoelectric prosthetics: These are powered by electrical signals generated by the muscles in the residual limb. Electrodes placed on the skin detect these signals and translate them into movement commands for the prosthetic fingers.
Grip:
Prosthetic fingers may have various grip patterns or mechanisms to allow users to grasp and manipulate objects. This can range from simple designs that rely on friction to more complex mechanisms that replicate the movements of natural fingers.
Curious which movement type and grip design would work for your hand specifically? Book a free consultation and we’ll walk through your options together.
Customization:
Prosthetic fingers can be customized to fit the individual needs and preferences of the user. They can be made from different materials, such as silicone, plastic, or metal, and can be tailored to match the size, shape, and skin tone of the remaining fingers. This is where a custom-built finger prosthesis differs most from a generic option — every measurement is taken from your actual hand, not an average.
Sensory feedback (in advanced prosthetics):
Some advanced prosthetic fingers incorporate sensory feedback systems that provide users with a sense of touch. This can be achieved through sensors embedded in the prosthetic that detect pressure or other tactile sensations and transmit them to the user’s residual limb.
Conclusion: Prosthetic Fingers
Prosthetic fingers exist to restore both function and appearance for people who’ve lost all or part of a finger — and the right design for you depends on your specific hand, lifestyle, and goals. We’ve fitted patients with everything from simple cosmetic devices to fully articulated myoelectric fingers, and the right starting point is always the same: an honest conversation about what you actually need day to day.
Book your free consultation and we’ll help you figure out which option fits — no obligation, and we’ll come to you anywhere in the USA.
Frequently Asked Questions
- What’s the difference between “prosthetic fingers” and “finger prosthetics”?
Nothing — they’re the same thing, just phrased in a different order. - Is a “finger prosthesis” the same as a prosthetic finger?
Yes, “prosthesis” and “prosthetic” are used interchangeably to describe the same device. - Are artificial fingers the same as prosthetic fingers?
Yes — “artificial finger” is simply a plain-language way of describing a prosthetic finger. - How does finger prosthetic movement actually work day-to-day?
It depends on the type — passive designs don’t move at all, body-powered designs move when you flex your wrist or arm, and myoelectric designs move using your muscle signals. Which one fits your lifestyle is exactly what we cover in a free consultation.