Gillian, I have had the same thoughts about what is safe to take for pain. I mostly use a synthetic morphine called Tramadol ( trade name: Ultram). It is fairly mild and I don't have the side effects of the more serious drugs. I have 25 mg tablets, which I sometimes cut in half. Jo uses this drug for her TKR rehab, but in a larger dose.
My rheumatologist feels that it is a fairly benign drug---she is leery of NASIDs. However, every time I show up in an Arthropod's office, I get the recommendation to take them.
For the Lysis--- my doc was the same as yours about knowing everything already. I have looked at a lot of websites and considered a lot of doctors who specialize in arthofibrosis. Almost all of them recommend cautery for removal of adhesions. They feel that the shaver causes bleeding.
Here is my list of docs who specialize in Arthrofibrosis, just in case you live near one of them.
Dr. Colin Eakin, Palo Alto Medical Foundation, California
Dr. Steadman, Steadman-Hawkins Clinic, Vail, Colorado
Dr. Peter Millet, Steadman Hawkins, Vail (as of 10/1/05)
Dr. Lonnie Paulos, Salt Lake City
Dr. Frank Noyes, Cincinnati Sports Clinic, Ohio
Dr. Wojitys, Ann Arbor, Michigan
Dr. Jason Folk Steadman-Hawkins Clinic of the Carolinas Greenville, SC
Dr. Shelbourne, Indianapolis, IN
Dr. Flandry, Hughston Clinic, Georgia, Alabama
Dr. Gill Boston Mass. General Hosptial and An asst. Prof at harvard
Dr. Tomas Sculo HSS
Dr. Answorth Allen HSS
Dr. Henry A Finn Weiss Memorial Hospital Chicago
Dr. Charles Bush-Joseph---Rush University Med Center.
Dr. Michael A. Terry Northwestern U Feinberg School of Medicine
Dr. Juan J. Rodrigo Baylor Schott and White Hilcrest Medical Center Waco, TX
Dr. Thomas N Lindenfeld Cincinnati Sportsmedicine and Orthopaedic Center
Dr. Friedrich Boettner HSS New York and the United Kingdom
Dr. Ajai Cadambi Texas Hip and Knee Center Forth Worth, TX
Dr. (Mr) Glyn Evans London Orthopedic clinic
Dr. Simon Tan St. Vincent's Sprotsmed Darlinghurst, Australia
Dr. Philipp Traut Bad Oeynhausen, Germany
If you Google Frank Noyes, he has a series of articles on Adhesions (scar tissue).
Also Peter Millet is one of the men who does not think you should have an open Lysis of adhesions.
Steadman treats arthrofibrosis, but they will not treat it after a TKR
Also Dirk Kokmeyer, a PT wrote tutorials on Arthrofibrosis Rehab that I found really useful
You might consider the two who are at Rush in Chicago. A pain to go see them, but let's face it you are talking about the rest of your life -- I think you can spare some time for that.