Hi,
louise 87
i read about your problem i dont know if this going to helpful to as i see it, as many of kind people have given a very sound advice but i think you should to perform the basic knee test which will give thr differntial diagnosis to understand the problem, some times it so happen that we tend foccus our requirment on the pain point. it looks like as i understand what gives you more pain through the mid to inner range, try to look into active insufficency problem as this can be one of prediposing factor.
try performing patellar test as it will narrow your problem!
further i can only think what might be occuring on the fact what you have described or i may be wrong i apologise for, throuh the mid to near inner range the patellar tendon extends over to its insertion . at that point say 90-95 degrees patella may be compressing against the bursa try excuding it and look for hamstring insufficency.
hope this might be helpful as for relief of pain when this happens is try mobilisation to the patella crainal and caudal and medial and lateral movements!and acl test movement which could help along with some hot and cold compression therapy.
hope this of help!
thanks.