My name is ***** ***** I’ve been involved professionally with dogs in the health and behavioral fields for over 18 years. It will be my pleasure to work with you today.
I'm sure you must know that dachshunds are prone to Intervertebral Disk Disease (IVDD). There doesn't have to be an injury as it is a degenerative disease. You can read more on this disease here:
There are surgical options available but whether your girl would be a good candidate for surgery or not would be up to your vet. If she is found to not be a good candidate for surgery, your vet will likely suggest getting her weight down, prescribing some antiinflammatory medications and possibly suggest a doggy wheelchair for her.
You can read more on ivdd here:
And help restore her mobility here:
I'd try to get her in to your vet as soon as possible so medications can be prescribed. I hope this information is helpful to you. If you would like any additional information or have more questions please don’t hesitate to press the reply to expert or continue conversation button so I can address any issues you still have . If you do find this helpful, please take this opportunity to rate my answer positively so I am compensated for my time.