I am sorry to hear about his injury. You may want to check with Dr. David Helfet who is the lead author on a study that looked at treatment of sciatic neuropathy associated with some types of pelvic/acetabular fractures. I am not sure which part of the country you are located in but he is an expert on treatment of these injury patterns.
Good luck - I hope he makes a great recovery.

See the PubMed link:
http://www.ncbi.nlm.nih.gov/pubmed/1760677 9

J Bone Joint Surg Am. 2007 Jul;89(7):1432-7.
Sciatic nerve release following fracture or reconstructive surgery of the acetabulum.
Issack PS, Toro JB, Buly RL, Helfet DL.

The Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA.

BACKGROUND: Sciatic neuropathy associated with acetabular fractures can result in disabling long-term symptoms. The purpose of this retrospective study was to evaluate the effect of sciatic nerve release on sciatic neuropathy associated with acetabular fractures and reconstructive acetabular surgery. METHODS: Between 2000 and 2004, ten patients with sciatic neuropathy associated with an acetabular fracture were treated with release of the sciatic nerve from scar tissue and heterotopic bone. Additional surgical procedures included open reduction and internal fixation of the acetabulum (five patients), removal of hardware and total hip arthroplasty (three patients), and removal of hardware alone (one patient). The average age of the patients was forty-three years. All patients were followed with serial examinations and assessments for a minimum of one year (average, twenty-six months). RESULTS: All patients had partial to complete relief of radicular pain, of diminished sensation, and of paresthesias after the nerve release. Four of seven patients with motor loss and two of five patients with a footdrop demonstrated improvement in function after the nerve release. No patient had evidence of worsening on neurologic examination after the release. CONCLUSIONS: Sciatic nerve release during reconstructive acetabular surgery can decrease the sensory symptoms of preoperative sciatic neuropathy associated with a previous acetabular fracture. Motor symptoms, however, are less likely to resolve following nerve release.

Thank you so much for the information. I live in Los Angeles, but my father lives in Florida. We would gladly travel for the procedure if my father is a candidate for the operation. I will do the research. I can't wait to share the news with my dad. Thanks again!

Thanks for the web link...I'll be sure to check it out. Take care.

I have heard that inversion tables would work, but do not know from experience. I have a pinched sciatic nerve as well and and trying to research to see if they are worth the 100 or so.