What is the difference between a severed knee and a severed thigh and calf?

Many friends who have had lower limb amputations have left messages asking me about the difference between knee amputation prostheses and thigh prostheses, as well as the differences when installing prostheses. Now unified reply:

1. Different amputation sites

1. Knee amputation site as shown in the picture:

2. Thigh amputation site as shown in the picture

3. Lower leg amputation site as shown in the picture:

2. Application of prosthetic limbs at amputation sites

1. Patients with thigh amputation can wear knee amputation prosthetic joints or thigh prosthetic joints. The composition of the prosthetic limb is: 2. Patients with knee amputation can only wear knee amputation prosthetic joints. The composition of a prosthetic is: receiving cavity+knee joint (knee amputation prosthetic joint)+prosthetic foot

3. Patients with lower leg amputation only need to choose a prosthetic foot. The composition of a prosthetic is: receiving cavity+prosthetic foot

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