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Prosthetics - Definition, Types & Treatment

Prosthetics is the medical field focused on replacing missing body parts with artificial devices to restore function and improve the quality of life of affected individuals.

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Things worth knowing about "Prosthetics"

Prosthetics is the medical field focused on replacing missing body parts with artificial devices to restore function and improve the quality of life of affected individuals.

What is Prosthetics?

Prosthetics is an interdisciplinary medical and technical field concerned with the design, fabrication, and fitting of prostheses -- artificial devices that replace missing or non-functional body parts. The primary goals are to restore lost physical function, relieve discomfort, and significantly improve the quality of life of those affected.

The field of prosthetics encompasses orthopedic prosthetics (limb replacement), dental prosthetics (tooth replacement), and specialized areas such as ocular prosthetics, vascular prosthetics, and breast prosthetics.

Fields of Prosthetics

Orthopedic Prosthetics

Orthopedic prosthetics focuses on the replacement of limbs such as arms, legs, hands, or feet. These devices are used when body parts are absent due to accidents, diseases such as diabetes mellitus, or congenital malformations. Modern prosthetic limbs are often made from advanced materials like carbon fiber or titanium and may incorporate myoelectric systems -- controlled by muscle signals -- for enhanced functionality.

Dental Prosthetics

Dental prosthetics, also known as prosthodontics, deals with the replacement of missing teeth and the restoration of chewing function and aesthetics. Common types of dental prosthetic solutions include:

Dental implants: Titanium screws anchored in the jawbone to serve as artificial tooth roots
Bridges: Fixed dental restorations attached to neighboring teeth
Dentures: Removable replacements for several or all missing teeth
Crowns: Protective caps placed over severely damaged teeth

Other Areas

Ocular prosthetics: Artificial eyes made of glass or acrylic after eye loss
Breast prosthetics: External or implanted breast prostheses following mastectomy
Vascular prosthetics: Synthetic grafts used to replace diseased blood vessels
Voice prosthetics: Speech aids used after larynx removal

Indications for Prosthetic Treatment

Prosthetic interventions are indicated in a variety of medical situations:

Amputation of limbs due to trauma or disease (e.g., diabetic foot)
Congenital limb deficiencies or malformations
Tooth loss caused by decay, periodontitis, or injury
Removal of organs or body parts during cancer treatment
Severe joint degeneration (e.g., hip or knee osteoarthritis)

Manufacturing and Materials

Modern prostheses are individually tailored to each patient. A variety of materials and manufacturing techniques are employed:

Carbon fiber and titanium alloys for lightweight, durable prosthetic limbs
Silicone and plastics for soft, skin-adapted components
Ceramics and zirconia in dental prosthetics
3D printing enables rapid, customized fabrication of prosthetic components
Myoelectric and bionic systems for active, motor-controlled limb prostheses

Rehabilitation and Adaptation

Fitting a prosthesis is only one part of a comprehensive rehabilitation process. Following the fitting, patients typically require intensive physiotherapy or occupational therapy to learn how to use their prosthesis effectively. Psychological support is equally important, as the loss of a body part can represent a significant emotional burden and may affect self-image and mental well-being.

References

World Health Organization (WHO): Assistive Technology Factsheet, 2023. www.who.int
American Academy of Orthotists and Prosthetists (AAOP): Clinical Practice Guidelines in Prosthetics. www.oandp.org
Esquenazi, A. et al. - Prosthetic Rehabilitation of the Lower Extremity Amputee. Physical Medicine and Rehabilitation Clinics of North America, 2014.

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