Dear Munchy
The best course of action I think is to get a referall to a new service run in conjunction with physios and GP s. This is called Back Pain Access (BPA).
Basically the service aims to deal with all type of LOWER back pain ( not neck pain). The physio s which run this service ( of which I am one) will examine you and look at all thats happened to you up to now ( all results of scans etc and clinic visits will be available) .
They can refer to Orthopaedic Consultants and for consideration of surgery amongst other options such as Physio etc. The route taken will depend on your symptoms and progression.
To get referred to this service go to GP and ask him to refer to Back Pain Access he should give you an 0800 number and you ring that and get appointment. These happen at Cov and Warwick NOT Walsgrave and waiting time is maybe 10 days.
The clincs run most days.
Hope this helps
PJP