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prosthesis Archives | Orthoped

Polyethylene wear total knee joints

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Mobile Bearing Total Knee

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Posterior Stabilized Total Knee

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What is a total knee prosthesis

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classification of total knee prostheses

unicompartmetal total knee

tricompartmental total knee

posterior stabilized total knee

cemented / cementless total knee

mobile and fixed bearing

materials for total knee / incongruent joint surfaces


There is no such total knee joint prosthesis that can mimic the complicated forms of surfaces of the knee joint and the “fuzzy biomechanics” of a healthy knee joint. Every total knee joint prosthesis is thus a compromise, that mimic only certain characteristics of the natural knee joint. The classification of total knee prostheses is equally “fuzzy”. (more…)

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Linked Total Knee Prostheses

These total knee prostheses permit flexion and extension and  allow for a limited rotation. The linked total knee prostheses, however, prevent movements to both sides (abduction and adduction) of the knee joint. That is their purpose: to provide the total knee with intrinsic side stability.

The limited amount of rotation, that these prostheses allow, improves gait and decreases stresses on the bone -skeleton interface created by walk and other activities.  Thus, in contrast to the old true hinged total knees, the linked total knee prostheses have lover rates of complications. (more…)

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