Chronic pain can be difficult to manage. Do you have the X-rays from the accident to compare with current films?
It may well be OA. Any damage to bone structure can cause osteo arthritic changes as can ageing. Ironing sitting down, altering how you sit - I have a pad behind my back to enable me not to slump and it helps me get up from the setts - maybe lower the mattress so that you can slide onto your knees? or heighten the mattress so that you can swing your legs over before standing. Trial and Error I'm afraid
My acute pain in the buttocks over the nerve on t he outer thigh is caused by bending over antique cabinets
- it took me 12 months to realise, the pain would be so severe I would wake screaming silently! Now I take care when scanning jewellery etc.!
I would suggest contacting a physiotherapist at your Surgery/Hospital for advice? I believe we can self refer these days! or have a chat with the personal trainer at your Gym/Leisure Centre?