Originally Posted by David Smith
Do you mean on side or one half? Examining the symphysis pubis might just be to risqué for me but perhaps the patient might palpate this himself.
Sorry I didn't reply sooner and sorry for the confusion. Upslipping is when one half that moves upwards.
For this to be, you will see on one side the iliac crest, the PSIS and the ASIS all elevated on the one side. This would mimic a long leg. The difference is the elevation of the pubic bone. If the pelvis is tilted due to an elevation of one leg, there will be congruence of the symphysis pubis. An up-slipping will cause an incongruence.
Blockage does occur, but I never put too much faith in that test, as this can be caused by a posterior innominate whether due to a subluxation or due to position. By this I mean if the posterior innominate is due to pronation of the opposite foot, then supinating the foot in stance will change the blockage.
Another thing to keep in mind about blockage is that this is a reason never to do leg length measurements in the seated position.
Personally, I do not even work on the pelvis to correct it. For instance a lateral talus will show a posterior innominate with no equinus. Fix the lateral talus and the pelvis corrects.
Paul, when we live half way around the world, the terminology can be different. What happens in the patient is the same regardless of the terminology.