Artificial Limbs

Understanding Artificial Legs: Learning to Walk Again

Learning to walk with artificial legs can be challenging but rewarding. Different types of amputations require different prosthetic legs, and it takes time to adjust. Various options for feet, ankles, and knees are tailored to individual needs. Liners, such as urethane and silicone, provide cushioning.

First Impressions on Learning to Walk

• Walking with an artificial leg can feel strange initially.
• It may seem heavy, but prosthetic limbs typically weigh less than real human legs (approx. 12kg/26lb). The perceived heaviness is due to unfamiliarity.
• Natural limbs feel light because of years of experience using them.

Leg Amputations: Types, Prosthetics, and Function

Levels of Lower Extremity Amputations:

• Foot: Toes or partial foot.
• Ankle disarticulation: At the ankle.
• Below the knee: (transtibial).
• Knee disarticulation: At the knee.
• Above the knee: (transfemoral).
• Hip disarticulation: At the hip.

Amputations are generally categorized as above-knee (AK) and below-knee (BK).

Below-knee prosthetics: Can offer a natural gait, often indistinguishable as artificial.

Above-knee prosthetics: Require better balance and more concentration, making them more challenging to use.

Modular Prosthetics

• Prosthetics feature modular construction, enabling customization.
• Knee options range from simple lock knees, safety knees (lock upon stumbling), to pneumatic or hydraulic knees.
• Liners (e.g., urethane, silicone) provide comfort and support.

Learning Process: Take It One Step at a Time

Steps for Learning to Walk:

1. Balancing: Practice stability while standing on the prosthetic leg.
2. Weight Transference: Shift weight smoothly between legs for a natural motion.
3. Single Stepping: Practice individual steps without forward movement.
4. Marking Time: Step in place to build strength and coordination.

Progression

Begin with walking rails for support. Transition to walking sticks or crutches. Aim for independent walking.

Helpful Tips:

• Position your artificial foot slightly behind your sound foot for stability.
• Focus on good posture and walking technique to improve ability.

Artificial Arm: Function and Challenges

Artificial arms are more complex and limited in function than artificial legs. They require extensive training and practice to use effectively. Benefits include reducing long-term strain on the sound arm. Dominant hand may shift post-amputation.