Hey Folks,

My wife can no longer stand on her tiptoes, and we've been to both a
neurologist and endocrinologist (thyroid seems OK).  We're between
appointments and I'm stressing over potential causes.

She suffers no pain or numbness, just the inability to stand on
tiptoes.  I have read that the L5-S1 nerve root is directly involved in
plantarflexion (rising on toes), and she did fall hard on her posterior
back in May while rollerblading, so I've been wondering if she might
have some slight disk damage that might be causing her symptoms.

However, it seems from my reading that L5-S1 damage or tibial nerve
damage usually cause symptoms only on one side of the body.  My
question is, could a hard backward fall result in this isolated
weakness in both legs?   The weakness isn't a general one . . . she
still walks long distances with no problem and with  no tiredness or
pain, and has no problems with stairs.   She just can't stand on her
toes.

Just looking for anyone with similar experiences until the glacial pace
of the health care system gets us to our next appointment.   Any info
would be greatly appreciated.

Thanks,
Karl