AOD's contribution to home injury

[Thunderthighs]

Hi,
I've had a few run-ins with doggies, leading to two AOD's, supported by the DWP/DSS in their agreement these were "Industrial Injuries".
Treatment still ongoing, regularly receiving physio/hospital treatments. ( RM have admitted Liability in one incident for lack of H/S adherence.) Had another small trip, on the black ice in Jan, recorded on Erica etc.

Then, had accident at home, which has now led to a Stage 1 meeting soon.
I am convinced previous/past history of AOD's has led to this most recent one, thereby them being a major contributory factor.

So, I can see the Management eager to press their Stage 1 to it's conclusion. But can the past AOD'S be used as "mitigating circumstances"?
In addition, current medical condition/treatment MUST have a bearing on this case too? If I hadn't had the 3 AOD's, then I wouldn't be in this situation

If they don't see Common Sense, then is it possible to enter a "Grievance" stating that the outstanding medical evidence has been totally ignored?

Any help, advice welcomed. Ta.