Lidocaine patch for postop analgesia

[Dr. Mian]

On researching less demanding postop analgesia techniques, I came across the 5% lidocaine patch which I was familiar with from my pain management fellowship.  I could only find a few studies and only access one of those regarding its use.  The one I did access showed no decrease in postop morphine use but showed decrease in pain scores with coughing (when used after radical retropubic prostatectomy).  Many of the links referenced its use in cats and dogs.  Does anyone have any personal experience with its use for postop analgesia or know of any additional studies?