The plants need much more sunlight. I'd be surprised if they fruit much at all.

Can you post a picture?

click on the OP's link for the pictures

Thanks. Sorry. I guess I'm a bit out of it the last couple days or so, if I missed both the link and the variety names. Anyway, I don't think the elbow joint thing is anything to worry about. It's probably a random malformation. If your variety isn't supposed to be wispy like an oxheart, I might be concerned about the floppiness of it, though, although I'm not sure what the cause would be in this case, unless maybe herbicide or a virus. The angular look of the ends of the leaves is what gives me that idea.

It looks to me as if they are both blind. i.e. there is no leader! I would cut them back to just above where a leaflet joins the stem, in the hopes that it will cause it to sprout out in the axis of the leaf. (What is usually called a sucker) and that will become the new leader. It may not. Many blind plants simply do not grow, but it's worth a try.

Linda

If you expand pictures at looks as if suckers were removed and with terminal leaflets. The second picture looks like even part of the stem was torn off with the sucker. Something isn't right here and could be intentional.

Hey all, thanks for your replies on my poor cherry tomatoes. Since I posted, I have basically tied them to a pole to try and help them grow upright, but it's not going well.

I don't think it's lack of sunlight as there are multiple other crops growing well in the same little garden area.

I have always pulled suckers out of the joints, I thought that was good tomato management.

I am pretty much giving up on these and am on the edge of pulling them out. Here's why: https://imgur.com/a/FcqMMnn

I think they are experiencing some sort of root rot, and it doesn't look good at all. If you have seen anything like that please let me know!

Live and learn. You can grow tomatoes with the sun you have, I proved it years ago (before the internet) as an experiment planting plants that received 3, 4, 5 and 6 hours of full morning sun followed by shade the rest of the day to see the effects. The 3 hour plants produced as many blossoms as the rest but the vine stem growth was slow. the 3 hr plants produced the same number of peduncles (fruit clusters) and petioles (leaf stems) as the others taller plants with more full sun, but were closer together on the main stem. Quality of the fruit suffered with smaller tomatoes with lower dissolved solids.

So yes you can grow in the light you have, not the problem. My study found 5 hours of full morning sun is enough to grow quality fruit. I didn't experiment with using just late afternoon sun and should of.............but now I can just use the internet to see what others have found.

My conclusion also suggests fast growing tall plants produce no more fruit clusters then shorter plants because the distance between clusters are closer. Time is a determining factor.