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1.The report suggest there is loos of the joint space with bony changes as mentioned.
2.This looks like the cartilage
is lost with bone rubbing each other, and possibility of meniscus
3.If there is loos of normal bone shape - then the treatment of choice is definitely operative.
4.Before you may need to get a MRI
knee which will help to assess the joint space, cartilage, ligaments, meniscus and so on.
5.Once the scan done one can actually plan the further depending on the findings. Mostly if age and medical condition support TKR os treatment of choice.
Hope i have answered your query,
any thing to ask ? do not hesitate to ask.