Mobile Bearing Total Knee
Contents
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What is a total knee prosthesis
Contents:
classification of total knee prostheses
posterior stabilized total knee
cemented / cementless total knee
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…)
Read MoreLinked 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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Total knee operation – How is it done
Contents
- the anatomy of the knee joint
- patellofemoral joint
- mechanical axis of the knee joint
- range of motion
- stability of the total knee joint
- Total knee operation
- Computer assisted surgery
- lateral release of the patella
- Replacement of patella – an enigma
- Cemented and cementless fixation
The name “Total Knee Replacement” is a misnomer.
In this operation, the surgeon removes only the damaged surfaces of the knee joint and then covers them with surface shells made of metal and polyethylene.
The proper name would thus be “the surface replacement of the knee joint”.
Here follows only a very short course on the principles of the operation itself.
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