[Canuck Physio]

Hmm...

Nice idea to think that the problem may be associated from an area that is not the problem either 'visually' or 'observable'.

I like this story:
There is an old Sufi story about philosopher-fool Nasrudin, who was looking for his house keys under a street light. A couple of friends happened by and joined in the search. Finally, in exasperation, one of the friends asked Nasrudin where he thought he had lost the keys. Nasrudin pointed to a spot some distance away where it was extremely dark. But why are we looking here then? he was asked. He replied: Because it is so much easier to see under the light.

I don't quite see the connection between a tight piriformis and an inverted or medially rotated foot. If the Piriformis is tight place the patient supine and elevated upper body. 'Tight' hip external rotators should result in external rotation of the leg which should result in lateral rotation of the foot as opposed to internal or medial rotation.

Unless I am missing something?

Regards