I had the ulnar transposition surgery on my right elbow last October & had
to wear a splint/cast for three weeks on my right arm.   The ulnar
transposition surgery alone took 2 1/2 hours as an outpatient procedure.  I
took a couple of Vicodin a day during the three weeks, pain wasn't severe.
The incision (about 4") was a bit tender following the removal of the cast,
but only if I bumped it against a table, etc.  The numbness in my small
finger, ring finger and side of my right hand down to my wrist has not
improved since the surgery.  The neurosurgeon says the nerves should
regenerate at a rate of 1" per month, or perhaps longer if the condition was
severe  (it's been close to 9 months).  Other than the current numbness in
my elbow in the area of the surgery, I haven't had any complications.  Best
of luck in your surgery!
                                                                    Harey

My ortho surgeon had a brace formed for me to wear at night and as much as
possible in day.  It held the arm out fairly straight.  Then he said try
rolling a towel and placing inside elbow at night after I quit using brace.
It took care of the problem, at least the last about 4 years I have been
o.k.  You might give the towel thing a try.
PD