Thigh prosthesis socket with ischial containment I

Simple analysis of characteristics of thigh prosthesis socket with

ischial containment I

Ischial containment socket has many advantages compared to the original quadrilateral socket.Medi-Rehatek prosthetic socket has a relatively wide range of use, but it requires a very high technology to clinical assembly.It is proven to be the best prosthetic socket technology in modern world from a large number of practical assemblies. 

Ischial containment socket not only changes the feature from horizontal ellipse to longitudinal ellipse but also is conformed to the innovative technologyof human anatomy. More importantly, its load-bearing and suspension undergoes a qualitative change compared to the prosthetic socket with longitudinal quadrilateral ellipse. The load-bearing principle of prosthetic socket with longitudinal quadrilateral ellipse is to put pressure on socket in order to ensure the ischial bone play a major role on bearing load on socket.

The squeezing thigh muscles and its deformation have partial load-bearing and play a major role on suspension. But its biggest drawback is to change the original loading capacity line of human thigh,it will produce instability when standing and walking. 

The load-bearing principle of ischial containment socket is that prolonged cross force point between the lower end of greater trochanter and rami ischii,which play a major role on bearing load.For this point, the patient put on prosthesis and will continue to use the original loading capacity line ofhuman thigh when standing and walking. It will eliminate the instability.The external force of rami ischii combines with the internal pressure of upper end of greater trochanter and the internal pressure of lower end of femur  ,it will produce bony suspension. ( The greater trochanter can not be pressurized).

Ischial containment socket evolves from a comprehensive variety ofmouth features of thigh prostheses. It is called longitudinal ellipse as its characteristics of oval-shaped mouth. People have the two basic thinking of horizontal ellipse socket through research on the ischial containment socket.

First, how to ensure that the fermur adduction in the prosthetic socket.

Second, how to avoid inside and outside movement of stump in the prosthetic socket. 

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