I am not an attorney so this is not legal adivce. I am not a medical doctor so this isn't medical adivce.
I previously asked if this was an on the job injury as spinal fusions frequently are the result of an on the job injury.
A fusion with pedicle screws is a common type of fusion and yes the screws do sometimes break.
Whether the surgery was the best type I don't know. On surgeon may routinely do one type of surgery and another may do something different for the same condition.
As I understand, you sought a second opinion from a neurosurgeon. That neurosurgeon had x-rays done and told you one screw was broken and the fusion was not solid.
You many want to consider getting all the post operation x-rays films and having a radiologist compare all of them.
One of the doctors might have to send the films as most radiologist practice as consultants and usually don't just read films someone brings to them, but some do.
The neurosurgeon should be able to assist you with this.
Sometimes a person has a failed fusion. If so, another fusion is required. Some failed fusions just occur without a reason. Some fail due to malpractice.
Whether you need another fusion is your decision. Gather as much information about fusions as you can.
The more you know, the better you can decide if you want another fusion or not. Remember in medicine and surgery there is no guarantee. The surgery can be quite successful and the results two months later show no imporvement.
You may want to check out the surgeon you decide to use with the Texas Medical Board. Go to their web site and look on the left side. There is a menu and one item is public information to check out doctors. Click around until you find license verification. Put in the last and first names of the surgeon you want to use. You'll be able to find out where she/he went to medical school, graduation year, where she/he did a residency, board certifications, malpractice claims, etc.
On the TMB site you can find out if the doctor has ever been disciplined for any thing or if there has ever been a malpractice claim.
There was a surgeon in my town who had lost over 40 malpractice claims and still did surgery until the day his license was revoked.
Low back pain is the most difficult to treat.
The pain management doctor may never get you pain free, but should help you live and work with any pain. You sort of learn to ignore it.
That's why it's called pain management not pain relief.
You may also want to get copies of all medical records for the injury. Start with the first doctor visit. Keep everything is a big folder.
Get records from every doctor, hospital, emergencey room visit, etc.
There will be a fee. The information belongs to you. The paper it's written on doesn't, so you have to pay a fee for the copies. The fees pay for the time and effort to copy them.
There is a surgeon who posts here occasionally, maybe he will see you post and have some medical information.