Not sure which part of the case you were looking to add expert testimony to support.
On liability, her treating and diagnosing doctor for the condition or disease she suffers, had better be in your corner, and if not (on causation, unless defendant admits he gave it to her, and not other way around), then you may expect to see defendant call him as a witness or seek to use his records.
On damages, you can and should go with several theories, including punitive damages (which requires no expert). I'd go the PTSD route and have her treated, and examined by a doc willing to testify about the trauma and how years later she will be affected by it. I just settled a tort case or nearly a million on PTSD where there was no physical injury. It can be powerfully presented.
HERES THE TRICKY PART ---If you don't or can't prove the underlying injury or condition or disease itself to be permanent, you may or may not still have a serious psych claim, and the more you work that up, and prove lost wages if she can't work --- then the more punitive damages becomes meaningful. They are also not dischargeable in bankruptcy (punitive), nor are intentional torts (tevis is often pleaded either or --- negligence or intentional). Dr. Grigory Rasin of Union, N.J. was our expert psychiatrist on PTSD claims.
I hope there are assets to recover against in your case ---
DAVID C. BENDUSH, ESQ. 310 SPRINGFIELD AVE., SUITE 10 BERKELEY HEIGHTS, NEW JERSEY 07922 908-771-0550 (TEL) 908-771-0715 (FAX)