One of my knees does not push as far back as the other months after lengthening

Has anyone experienced this? I stopped lengthening almost 4 months ago, and I did both femurs and tibias. When I stand up straight and try to lock my knees and push them as far back as possible, one knee is about 0.5 inches ahead of the other, at which point it feels like I am hitting a wall at that knee joint. If I try to stand for an extended period and remain fully upright, I find myself passively having to flex that knee to remain in the same position. To me it feels like an issue with bone rather than muscles.

But my doctor insisted that my xrays look fine and that I should keep stretching and that it's probably because my muscles are tight. But I feel like at this point it's been long enough where it would have improved if it was a muscle tightness problem, especially because the other leg is totally good.

Does anyone have any thoughts or experience with what could be happening here? It feels increasingly unlikely to me that it is not a bone issue, alignment or something. Feeling pretty down thinking I will need a corrective procedure

when did your knee bending problem started during lengthening? Could you straigthen your legs during lengthening?

This leg always had slightly worse flexion than the other one. PT and doc said that was normal, and it wasn't that bad (could get to 0 degrees with minimal pressure), so nobody thought anything of it, including myself. I only felt something was wrong once I stopped lengthening and started standing. I had to put unusual level of force into my bad knee to remain standing upright with good posture longer than 10 min. And this has not improved to an appreciable degree in 4 months, which is too sus

does ur knee bend inward?
https://www.braceability.com/blogs/info/patellar-subluxation
maybe u need more pt exercises on the knee. maybe some help from youtube videos.

Uh i dont think so. I would hope if this was my issue it would be easily identifiable on an xray. The doctor is supposed to be pretty good..

I think my best bet is to just go hard with stretching for a month or two and then go to another doctor if nothing improves...

you may have developed an apex anterior deformity during tibia lengthening . A simple lateral view of the tibia or knee x-ray will answer that question

Thanks very much for your reply Dr Assayag. Here are some of my xrays. R is bad leg L is good, for sake of comparison. Unfortunately the fibula is obstructed but not sure that makes a difference. https://imgur.com/a/UxRLggS

If there’s anything apparent there I’d love to know, but im not that hopeful anything amiss is captured in these

thats how i felt too. my pt guy help stretched my knee for a few weeks. it helped alot. every day i felt better. i still feel tension but its fully straight. 2 months after finish lengthening.

the video explain some parts about bent knees.

Quote from: victim on December 22, 2023, 05:23:16 AMThanks very much for your reply Dr Assayag. Here are some of my xrays. R is bad leg L is good, for sake of comparison. Unfortunately the fibula is obstructed but not sure that makes a difference. https://imgur.com/a/UxRLggS

If there’s anything apparent there I’d love to know, but im not that hopeful anything amiss is captured in these

Looks like a well done lengthening.

No tibial deformities there. Stretching may help

Quote from: Michael J. Assayag, MD on December 22, 2023, 11:58:54 AMLooks like a well done lengthening.

No tibial deformities there. Stretching may help

Thanks very much for taking a look. I will go hard on the stretching. But still I’m left with questions I wish I had answers to. Do you think if there was an issue with bone causing this it would have definitely been captured by these xrays? Possible it’s a femur issue? Seen my symptoms before caused by another issue? Thanks again