This may be due to a disc problem that will respond to steroids or require surgery to repair it.
You can read about disc disease here
http://uwveterinarycare.wisc.edu/sa_services/surg/neurology/ivdd.htm
http://www.veterinarypartner.com/Content.plx?P=A&A=2373
and about a fibrocartilaginous embolism to the spine here
http://www.marvistavet.com/html/body_fibrocartilaginous_embolism.html
It sounds like she really damaged her spine in the jumping she did after the first problem.
If she is not able to pass urine or stool she needs more vet care.
Lots of info on paralysis and spine issues on this site put together by dachshund owners as that breed has this issue a lot
http://www.dodgerslist.com/
If it turns out that she cannot recover leg use there is the option of wheels for her to get around
http://www.doggon.com/home.html
http://www.eddieswheels.com/
http://www.dogkarts.com/
and info on building your own plus more
http://www.wheelsfordogs.com/
Charitable giving is down but you can see if you can find financial aid as cash flow is an issue. Check with your local humane society to see if there is local low cost vet care, ask your vet if you can do time payments or here are some groups that might help you afford the vet bills:American Animal Hospital Associationhttp://www.aahahelpingpets.org/" Through the AAHA Helping Pets Fund, veterinary care is possible for sick or injured pets even if they have been abandoned or if their owner is experiencing financial hardship."Angels 4 Animalshttp://www.angels4animals.org/"Our services range from financial aid to complete treatmentto those pets and pet owners in need."Care Credit If you qualify this may work well for you.http://www.carecredit.com/A credit card company for health care, including veterinary care."With a comprehensive range of plan options, fortreatment or procedure fees from $1 to over $25,000, we offer a planand a low monthly payment to fit comfortably into almost everybudget." They have a zero interest program if you pay within a certain time frame and they list the vets who work with their product.God's Creatures Ministryhttp://www.all-creatures.org/gcm/help-cf.html"This fund helps pay for veterinarian bills for those who need help."Help-A-Pethttp://www.help-a-pet.org/home.html http://www.help-a-pet.org/"Our efforts focus on serving the elderly, the disabled, and theworking poor."IMOMhttp://www.imom.org/"We are dedicated to insure that nocompanion animal has to be euthanized simply because their caretakeris financially challenged."The Pet Fundhttp://thepetfund.com/"The Pet Fund is a registered 501(c)3 nonprofit association thatprovides financial assistance to owners of domestic animals who needurgent veterinary care."United Animal Nationshttp://www.uan.org/lifeline/index.html"The m ission of LifeLine is to help homeless or recently rescuedanimals suffering from life-threatening conditions that requirespecific and immediate emergency veterinary care. We strive to serveGood Samaritans and rescue groups who take in sick or injuredanimals. In certain cases, LifeLine can also assist senior citizensand low-income families pay for immediate emergency veterinary care." They also keep a list of local and national help resources herehttp://www.uan.org/index.cfm?navid=163
More groups here http://www.speakingforspot.com/helppayingforveterinarycare.html
Hope this helps you!
Dog Expert:Rescue, Train,Breed,Care
30+ yrs dog home vet care & nursing, rescue, behavior&training, responsible show breeding, genetics