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Prosthetic Arms· 5 min read· 01/01/2025

Below-Elbow Prostheses

Below-elbow prostheses aim to support activities of daily living after loss of the forearm and hand. Information on the types and the fitting process.

Main topic: Arm prostheses
Below-elbow prostheses: Natural elbow, forearm socket and myoelectric hand of a user sitting on a sofa

Loss of the hand and forearm at the below-elbow level can affect not only hand function but also the forearm's inward and outward rotation movements. Activities of daily living may change considerably, especially when the dominant side is affected. For limb loss at this level, different prosthetic options suited to the person's needs are considered.

What is a below-elbow prosthesis?

Below-elbow prostheses (transradial prostheses) are upper limb prostheses used for limb loss at the level of the forearm and hand where the elbow joint is preserved; the scope of below-elbow prosthetic fittings for this level is determined according to the person's needs. The aim is to help make grasping, holding and daily functions easier. Preservation of the elbow joint may contribute to movement control when using a prosthesis.

Types of prostheses

Different types of prostheses may be considered depending on the person's lifestyle, activity level and clinical assessment:

  • Cosmetic prostheses: Options intended mainly for aesthetic purposes, supporting the appearance of the arm and hand.
  • Body-powered prostheses: Mechanical prostheses controlled through a cable system by shoulder and body movements.
  • Myoelectric prostheses: Electronic prostheses that open and close the hand using electrical signals picked up from the muscle surface; their working principle is explained in detail under myoelectric arm prostheses. Some models may offer grasping functions that can mimic finger movements, as discussed in the hand components section.

Fitting process

Prosthesis selection and fitting are planned in line with a specialist physician's assessment, prescription and medical report. The process may include stages such as taking measurements, socket fitting, trial and training in use. Regular check-ups and rehabilitation work may contribute to functional use of and adaptation to the prosthesis.

This content is for informational purposes only; you should consult your physician for diagnosis and treatment.

This content is for information only and does not replace diagnosis or treatment. Applications are carried out in line with a specialist physician's prescription or medical report. Results may vary from person to person; you are advised to obtain a detailed opinion from your physician before the procedure. · Last updated: 01/01/2025