Quilt question

[*Z*]

A little back story first:
About 10 years ago, my Mom made both my DDs quilts. They are machine quilts. They are very pretty. The fronts of each have an alternating pinwheel/solid square pattern in rows. Each pinwheel square has 8 little triangles that form the pinwheel. They have been used daily, on their beds, washed when needed, etc. Well, over the years they have slowly been coming apart. It looks like the material has frayed away at the seams and caused a lot of the holes and in other places it looks like the material has just worn away. I dare not to ask her about it b/c the last time I asked (when it first started happening) she blew a gasket and ripped me for not having my DDs take better care of them. Um, Mom, they have them on their beds. It's not like they were using them to hang from the ceiling or anything. Whatever. ANYWAY, I went through and fixed the few holes at that time and all was well. They are really bad now. There are whole sections that have come apart, the batting is all bunched up and ripped. I just tried to sit down and start hand sewing one back together but there are whole triangles that are just missing or are just a few threads of material left. I don't know it if was inferior material and a defect in that particular material or what. There is just too much damage (I think) to fix it that way.
My question is, at what point do you just say to heck with it and sew new material over the holes? Should I try using fusible web to "glue" the new material over the holes and then hand stitch it to make sure it stays? Should I try that or should I rip it apart and try to remake it? I would have to tear out the old and put new batting in it anyway. I don't know what to do. I have folded it up and put it away in the closet for now. The back of the quilt is just 2 pieces so it's in good shape. It's just the front with all of the little seams that is a mess. I guess I should have checked it every time I washed it and fixed any damage then. Maybe it wouldn't be so bad now.
Any ideas?

[Molly53]

See if this information is helpful, Z: http://glory-garden.blogspot.com/2011/05/repairing-damaged-quilt.html