I didn't know they did disc replacements,I had a laminectomy in 1993 and it lasted for ten years and now I am on disabillity and incapacity benefit ,I really hope things have improved since I was done and your partner has no trouble ,I think the thing to do is not to do anything that is to strenuous ,I should have paid attention to my body and refused to do anything I thought i was not capable of but instead I tried to act as if I was ok I now realise I should have refused to lift ,push ,or pull anything and protected my back no matter what anyone said ,it is to late for me now but not for them so whatever they do tell them to think first before acting . IF someone calls them a skiver for not helping so be it but i am sure that they will be better off in the long run.