Severe Lower Limb Disability: What Does Total Loss of Function Mean? - Orthopedics

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Lower limb function


Hello, doctor.
I would like to ask you about the definition of "severe physical disability" in the classification by the Department of Health.
What does "complete loss of function in both lower limbs" mean? Does it refer to the inability to run, jump, stand, or walk with both legs? I would appreciate your response to my question.
Thank you very much!

Yi Qie Fa Cong Xin Xiang Sheng, 40~49 year old female. Ask Date: 2004/12/20

Dr. Zhou Lizhi reply Orthopedics


The current classification of physical disabilities is established by the social bureaus of various counties and cities, as well as township offices, through the "Mental and Physical Disability Assessment Manual." Among the categories of physical disabilities, there are classifications for "upper limbs" and "lower limbs," as well as degrees of severity such as "mild," "moderate," and "severe." The classification is quite detailed, and I will not elaborate further here.
Regarding your question about "severe physical disability" with "complete loss of function in both lower limbs," it indeed refers to an inability to stand, let alone run, jump, or walk.
Additionally, the activities that amputees can perform with prosthetics or assistive devices are also described within this classification.
This example is for reference only, and everything should be based on the "Mental and Physical Disability Assessment Manual."

Reply Date: 2004/12/20

More Info


The classification of severe lower limb disability, particularly the term "total loss of function" in the context of the Department of Health's disability grading, refers to a complete inability to use both lower limbs effectively. This definition encompasses a range of functional limitations that significantly impair mobility and daily activities.
When we say "total loss of function," it means that the individual is unable to perform basic movements such as walking, standing, running, or jumping. This condition can arise from various medical issues, including severe neurological disorders, traumatic injuries, or degenerative diseases that affect the muscles, nerves, or bones of the lower limbs.
In practical terms, individuals classified under this category may rely entirely on assistive devices, such as wheelchairs, for mobility. They may also require assistance with daily activities that involve the use of their legs, such as transferring from a bed to a wheelchair or using the restroom. The inability to walk or stand can lead to secondary complications, including pressure sores, muscle atrophy, and psychological impacts due to loss of independence.

The classification of "total loss of function" is crucial for determining eligibility for various support services, rehabilitation programs, and financial assistance. It also plays a significant role in the planning of medical and therapeutic interventions aimed at improving the quality of life for individuals with such disabilities.
In the context of rehabilitation, individuals with severe lower limb disabilities may benefit from physical therapy aimed at maximizing any remaining function, improving upper body strength, and enhancing overall mobility through the use of adaptive technologies. Occupational therapy can also assist in finding ways to perform daily tasks more independently, despite the limitations imposed by their condition.

It's important to note that while "total loss of function" indicates a severe level of disability, each individual's situation is unique. Some may have partial function or may be able to engage in certain activities with the help of assistive devices. Therefore, a comprehensive assessment by healthcare professionals is essential to tailor interventions that meet the specific needs of the individual.

In summary, "total loss of function" in the context of severe lower limb disability signifies a complete inability to use both legs for mobility and daily activities. This classification is vital for accessing appropriate medical care, rehabilitation services, and support systems that can help individuals manage their condition and improve their quality of life. If you have further questions or need clarification on specific aspects of this classification, it would be beneficial to consult with a healthcare provider who specializes in rehabilitation medicine or disability services.

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