Microprocessor-controlled leg orthoses are a type of KAFO (knee-ankle-foot orthosis) that supports the knee and ankle joints and adapts to gait by means of sensors and hydraulic systems. Extending across the knee and ankle, this structure is an example of a long leg brace that contains electronic components. It may be considered to support movement in people who experience loss of strength in the lower limb due to muscle weakness or neurological causes.
Areas of Use
Orthoses of this type may generally come into consideration in the following situations:
- Neurological conditions that lead to loss of strength in the leg muscles
- Partial paralysis
- Certain musculoskeletal problems affecting the lower limb
The suitability of the device varies from person to person and is determined only by the specialist physician's assessment.
Working Principle
The device consists of custom-made thigh, calf and foot sections. Its sensors continuously measure knee movement and angular acceleration; in this way, the phase of gait the person is in is detected. The hydraulic system adjusts resistance so as to support the bending and straightening movement of the knee. This structure aims to support balance while walking on uneven ground and slopes. This resistance adjustment, which changes throughout gait, differs from electronically controlled knee joints, which only manage a locked or free position.
Fitting Process
Microprocessor-controlled leg orthoses are planned in line with the specialist physician's prescription and medical report. Taking measurements, custom production and fitting work are carried out through assessments made at the center. Getting used to the device and using it correctly mostly take place alongside a rehabilitation process.
This content is for informational purposes; you should consult your physician for diagnosis and treatment.
