Graphics Bug - Door Stuck

[bluel0bster]

Yes, I have read the troubleshooting guides, but unfortunately neither they nor any other thread I could find have anything to do with my problem.

I have a door whose latch is stuck inside a wall such that I can't open the door. I've tried everything in game from pushing/pulling the latch, throwing objects at the latch, restarting the game, and even attempting to kill myself to see if that would reload the level (unfortunately all the mobs had despawned).

This bug occurred at the very end of the prison section, where you use the acid on the door's padlock, which leads to the cistern. Having used the acid on the padlock, the door became unable to be opened. I'm afraid this may prevent me from continuing this particular playthrough and force me to restart altogether.

A couple pictures to visualize what I'm referring to:



You can see on the right hand side how the latch is stuck inside the wall. Any help would be greatly appreciate, as I would really like to not start over all the way at the beginning of the game.

I'm not sure how it'll help, but as per the sticky request:

My rig is a Windows 7 64-bit, Lenovo laptop.