A transfemoral prosthesis, also known as an above-knee prosthesis or “AK,” is an artificial limb that replaces a leg that has been surgically amputated above the knee or that the patient was missing at birth. The prosthetic components for an AK prosthesis include a custom fabricated socket, a suspension system, a knee, and foot. The clinical team at Human Technology stays on top of current technology for prosthetic knees, and we employ lightweight materials, improved designs, hydraulics, carbon fiber, mechanic, computer microprocessors, and innovative combinations of these technologies that give more control to the user.
Ossur RHEO Knee (left) acclimates to an amputee’s walking manner and surroundings. Learning how the amputee moves, the Rheo enables the wearer to effortlessly traverse slopes, stairs, and tight spaces, while walking at varying speeds with poise.
Ottobock C-Leg® 4 debuted in 1997. It adapts to your unique gait pattern and walking speeds. C-Leg offers advanced stumble recovery, a control feature that improves the transition to swing phase and makes it possible to safely walk backwards, and precise adjustment during each step. It’s a weatherproof knee, meaning it is splash resistant.
Ottobock Genium: Virtually duplicating a body’s natural gait no matter the speed, optimized physiological gait (OPG) reduces ground reaction forces, improving damping and promoting knee flexion, which helps minimize future orthopedic problems. Able to read movement at 100 times a second using multiple sensors and controllers, adjustments are made when users change speed, walking up or down stairs or hills, avoiding obstacles, and walking backwards. Allowing users to stand and sit more easily and naturally, it is lightweight and features battery life of nearly five days.
Plié® Knee: Strong construction, rugged, and submersible, the Plié 3 Microprocessor Controlled (MPC) Knee responds fast and adapts to variety of gait speeds and changes in user activities. Improved stumble recovery during walking and other activities. Safe for occasional submersion in fresh water for up to 30 minutes to a depth of 3ft.
Össur Balance Knee OFM1 Polycentric Knee: This knee can be locked, useful for new amputees and those with reduced mobility. Devised with higher ground allowance to encourage a more assured gait, rates of flexion and extension can be modified to the amputee.
Össur Mauch Knee: Featuring manual locking and free swing functions, the Ossur Mauch need if prescribed for amputees needing a higher weight limit, this knee has a durable aluminum frame that assists in maintaining a proper stance.
Total Knee 1900 by Össur works well for everyday walking activity for all AK users. An elastic polymer creates friction to control the swing phase and keep it steady. An extension promoter is used to limit heel rise and move the knee into a full extended position.
Össur Total Knee 2100 is a polycentric knee featuring 3-phase hydraulic swing control. It is durable and designed to handle the lifestyle of more active lower extremity amputees. Offering stability, control, efficiency for multi-speed walking, higher impact levels, and heavier loads, its low build height is useful for long transfemoral limbs or knee disarticulation.
Knee disarticulation describes a lower-limb amputation through the knee joint and preserves other bones in the leg such as the femur. It requires a socket, knee joint, a suspension system, pylon, and foot in the prosthetic prescription.
A below knee prosthesis “BK”, also known as a transtibial prosthesis, is an artificial leg that replaces a limb that has been amputated below the knee. The prosthetic components for a BK prosthesis include a custom fabricated socket, a suspension system, pylon, and foot. Below-knee amputees usually regain normal mobility more readily than someone with a transfemoral amputation, due in large part to retaining the knee, which allows for easier rehab.
