I don't think so. I have had the same problem in the past.
Your plants will grow out the top and then break over the
edge. It looks ugly but won't hurt them much. You can support
some of them with twine. Consider extending your cages to 7'
by adding another 2' section of mesh

It is perfectly normal for indeterminate plants to outgrow their cages - unless you use 10-12 foot tall cages. However topping them is not a standard practice since all that future production is lost.

The branches just drape back down the outside and keep right on growing and producing.

If you only want plants that will remain contained within a 5' cage then grow determinate varieties.

Dave