No, not spine cars (centerbeams), the original (?) name for what is no known as Post Traumatic Stress Disorder (with side trips to Old Sergeants Syndrome and Bicycle Face:
https://jalopnik.com/railway-spine-the-mystery-disease-that-changed-our-und-1846519946
Does have to be said, though, that this comes not long after the somewhat-forgotten revelations of the “extraordinary case of Sarah Hawkes” – which did implicate spinal nerves in a great number of complex behaviors. See the interesting take on the ‘evolution’ of railway spine in medicine in Bruce Sterling’s The Difference Engine – not all steampunk is romantic!
May I suggest as possibly relevant, the 1970 case, Gloria Sykes v San Francisco Municipal Railway?
https://www.trialguides.com/blogs/authors/marvin-lewis
The story behind the case has also been made into a musical: