Description
A below-knee prosthesis, also known as a transtibial prosthesis, is an artificial limb designed to replace a missing or amputated leg below the knee. It is custom-made to meet the specific needs and lifestyle of the individual amputee. The primary goal of a below-knee prosthesis is to restore functional mobility and improve the amputee’s quality of life.
Components of a below-knee prosthesis:
Socket: The socket is the part of the prosthesis that fits directly over the residual limb (the remaining part of the leg after the amputation). It is typically made from materials like thermoplastic or carbon fiber and is designed to distribute the weight and pressure evenly, providing a comfortable and secure fit.
Prosthetic Foot: The prosthetic foot is the bottom part of the prosthesis that comes in contact with the ground during walking or standing. It is designed to mimic the function of a natural foot and can be made with various materials and designs to suit different activities and terrains.
Shank or Pylon: The shank or pylon connects the socket to the prosthetic foot. It can be made from lightweight materials like aluminum or carbon fiber to reduce the overall weight of the prosthesis.
Suspension System: The suspension system holds the prosthesis in place on the residual limb. There are various suspension methods, such as straps, suction, or vacuum systems, to ensure a secure fit and prevent the prosthesis from slipping during movement.
Knee Joint (if applicable): For certain amputees, especially those with higher activity levels, a below-knee prosthesis may include a knee joint. The knee joint allows for bending and provides additional support and stability during walking.
Alignment: Proper alignment of the prosthesis is crucial for the user’s comfort and function. A prosthetist, a trained professional specializing in prosthetic fitting, works with the amputee to adjust and align the components correctly.
Customization and Mobility:
Each below-knee prosthesis is customized based on the individual’s residual limb shape, activity level, and specific requirements. Advanced prosthetic technologies have made it possible for amputees to engage in various physical activities, including walking, running, and even sports.
Adjusting to a below-knee prosthesis may take time and require rehabilitation and physical therapy to develop proper gait patterns and regain strength and balance. Regular follow-ups with the prosthetist are essential to ensure the prosthesis continues to meet the user’s needs and remains in good condition.
It’s worth noting that prosthetic technology and design are continually evolving, with ongoing research and development aimed at improving the functionality and comfort of prosthetic limbs for individuals with limb loss.
