Everything You Need to Know About Below Knee Prosthetic Leg

A below-knee prosthetic leg can be a life-changing solution, helping you regain mobility and independence after a transtibial amputation.

In this guide, we’ll explore everything you need about below-knee prosthetics—from their components to rehabilitation and maintenance—to help you reclaim your active and independent lifestyle.

Key Takeaways

  • A below-knee prosthetic leg helps restore mobility and independence after a below-knee amputation (also called transtibial amputation).
  • Adjusting to a prosthetic leg requires time, patience, and teamwork with your healthcare providers.
  • Proper maintenance, cleaning, and regular check-ups are vital for long-term use.

What is a Below-knee Prosthetic Leg

Man taking a walk outside with double below the knee amputation
Man taking a walk outside with double below the knee amputation

A below-knee prosthetic leg can transform your life after a transtibial amputation (commonly known as below-knee amputation) often due to trauma, infection, diabetes, or vascular disease (poor circulation). It replaces the missing part of your leg, helping you move and regain independence.

Components of a Below-Knee Prosthesis

A below-knee prosthetic leg is made up of several key parts such as:

  • Socket: This is the custom-made part that fits over your residual limb (also known as stump). It connects your leg to the prosthesis and provides stability. The material used for the socket can vary depending on your preferences and needs. It can be thermoplastic, metal, or laminated material.
  • Liner: A soft and removable inner layer commonly used below the knee prosthesis. It adds cushioning and helps ensure a snug fit while shielding your residual limb from irritation and wear. Many liners also prevent skin breakdown and improve overall comfort during use.
  • Pylon: The framework that supports your weight and helps with balance and movement. It is typically crafted from strong, lightweight materials like carbon fiber, aluminum, or titanium positioned between the socket and the foot. It can be visible as a metal tube or enclosed within a cosmetic cover.
  • Prosthetic Foot and Ankle: These mimic natural foot movement, offering flexibility and grip on different surfaces.
  • Suspension System: It keeps the prosthesis securely in place, so it doesn’t slip while you walk or run. Suspension options include suction systems, locking pins, sealing liners, belts, and straps, offering flexibility based on your needs and the unique fit of your residual limb.

Together, these parts create a system that makes walking and standing feel more natural, improving your overall mobility.

The Process of Getting a Below Knee Prosthetic Leg

Technician working on a below the knee socket prosthesis
Technician working on a below the knee socket prosthesis

Transitioning from below-knee limb loss to wearing a prosthetic device involves teamwork between you, your prosthetist, and your rehabilitation team.

Here's how to get a below-knee artificial limb:

  1. Initial Assessment: A prosthetist evaluates your limb and talks with you about your mobility goals.
  2. Insurance Approval: If you have insurance, a healthcare team might assist you with the approval process until everything is sorted.
  3. Casting and Measurement: They take detailed measurements to ensure a comfortable fit.
  4. Building a Custom Socket: An impression of your limb is taken to create a socket tailored to your unique shape, providing optimal comfort and support during movement.
  5. Trial Fitting: You test the prosthesis to check its fit and comfort.
  6. Final Adjustments: Small tweaks are made for the best performance and feel.

Each step ensures your prosthesis is customized to meet your needs and improve your mobility.

Rehabilitation With a Below Knee Prosthetic Leg

Happy man sitting down outdoors, double below the knee amputee
Happy man sitting down outdoors, double below the knee amputee

Rehabilitation is a key part of adjusting to your prosthetic leg. Here's what you can expect:

  • Customized Training Plan: Your occupational or physical therapist will create a plan tailored to your needs. Training occurs in stages and can take several months to a year. Adjusting to prosthetic limbs, especially a bionic leg, requires time and consistent practice.
  • Gait Training: Helps you relearn how to walk naturally with your prosthesis. This step is especially important for bilateral amputees who may face additional challenges.
  • Mental and Emotional Adaptation: Mental and emotional adjustment is just as important as physical training. Be patient and give yourself time to adapt.

Rehabilitation helps you build confidence and comfort, ensuring you make the most of your prosthetic leg.

Adapting to Life with a Below Knee Prosthesis

Below the knee amputee working out outdoors doing stretching exercise
Below the knee amputee working out outdoors doing stretching exercise

Adjusting to a below-knee prosthesis involves learning to manage everyday activities, participating in recreational activities, and addressing the psychological impact of limb loss.

  • Everyday Activities: Adapting to daily tasks at home, work, and beyond may require changes. This can include modifying your living space for better mobility and using adaptive tools to make everyday life easier.
  • Engaging in Sports and Recreational Activities: A below-knee prosthesis allows you to enjoy activities like cycling, horseback riding, and even water sports like wakeboarding. Customizing your prosthetic components can help match the demands of specific activities.
  • Psychological Aspects: Coping with limb loss is an important part of the journey. Counseling can support you in accepting your body, managing emotional distress, and navigating the mental challenges of amputation.

Adapting to a prosthetic leg takes time, but with the right support and mindset, you can reclaim independence and lead an active, fulfilling life.

Maintenance and Care For Your Below Knee Prosthetic Leg

Maintaining and caring for your prosthetic leg is an essential part of your daily life. Routine care and identifying common prosthesis issues can prevent discomfort and potential complications.

  • Keep Your Prosthesis Clean: Clean your prosthetic device daily to remove sweat, oil, and dirt. Keeping it clean helps prevent skin irritation and protects the device from damage.
  • Clean Your Residual Limb:
    • Clean your skin daily using lukewarm water and mild soap.
    • Rinse well while avoiding prolonged soaking.
    • Gently pat your skin dry without rubbing too hard. Proper hygiene reduces the risk of irritation.
  • Routine Care for Your Residual Limb:
    • Inspect for irritation or skin problems daily.
    • Perform recommended stretching exercises to maintain strength and flexibility.
  • Regular Check-Ups and Adjustments:
    • Your residual limb may change over time, requiring modifications to your prosthesis.
    • Schedule regular appointments with your prosthetist to maintain fit and comfort.

Taking these steps ensures your prosthetic leg remains functional and comfortable, supporting your mobility and overall well-being.

When to Contact Your Prosthetist

Reaching out to your prosthetist when problems occur is vital to sustaining the optimal fit and functionality of your prosthetic leg. Regular check-ups and modifications are necessary due to changes in the limb over time.

Frequently Asked Questions

How much is a prosthetic leg below the knee?

The cost of a prosthetic leg below the knee varies based on materials and design. Typically, it costs from $3,000 to $24,000. It’s essential to consult with a prosthetist for an accurate estimate.

How hard is it to walk with a below-knee prosthetic?

Walking with a below-the-knee prosthetic is generally easier than an above-the-knee prosthesis, especially if the knee joint is intact, allowing for more mobility. The reason for amputation and the health of the residual limb can also affect the ease of walking.

How long does a below-knee prosthesis last?

A below-knee prosthesis can typically last between three to five years, but the duration can vary based on changes in your residual limb.

Conclusion

Living with a below-knee prosthetic leg involves understanding the amputation process, key components of your prosthesis, and the steps to rehabilitation and daily adaptation. Proper maintenance and regular check-ups ensure your prosthesis remains comfortable and functional.

Remember to remain patient with yourself throughout this journey and work closely with your healthcare team to achieve the best possible results.

About The Author