Hi Lost,So you had an MR-Arthrogram in the hip on the affected side and there was no sign of a labral tear or femoroacetabular impingement (FAI)? That's very interesting. If the injection did nothing, and the MR-Athrogram shows no evidence of labral tear or fraying, and you have no pain in the hip, there is no reason to believe that surgery (or a CT/CAT scan) would help. The two most reliable diagnostic procedures, according to a study I have around here somewhere, are response to a local anesthetic injection into the hip joint and results of an MR-Athrogram. Both have ~90% specificity and sensitivity, IIRC. For what it's worth, two of the people in this thread who have found a labral tear through MR-Arthrograms (one of them being me) have found them on a 3.0 Tesla MRI machine. Normal MRIs are 0.8-1.5 Tesla. My doctor specifically referred me to a high-strength scanner so we wouldn't miss anything. If you want to be absolutely sure, you can get an MR-Arthrogram with intraarticular dye in a 3.0 Tesla machine. I think most major cities should have at least one facility with one. Have you taken an extended break from running? It worked for me once before, last fall. I had this whole loss of coordination issue in the summer, which led to me getting a sacral stress fracture on the opposite side (from compensation?) so I had to take 6 weeks off, 4 of which were in the pool. After that, I started up running really slowly and didn't have any issues (even got up to pretty good mileage and set some new PRs) until this past spring. I got extremely sick, couldn't get out of bed for a week, and couldn't eat anything for nearly as long, so I lost about 8 pounds. Ever since, I've been plagued with problems: an extremely tight piriformis, an old adductor strain, and, just when I was getting over the adductor strain, the loss of coordination issue came back and stuck with me the entire summer. I did many of the things you have done: seen many different doctors and PTs, done endless leg lifts, glute bridges, and stretches. I had buns of steel, but still couldn't run for more than ~4mi easy without losing control of my right leg. So currently I am on week #5 off and just starting up some basic strength and cross training soon. Among things that have worked for others in the past, I think (way back on page 10 or 20) one person found relief from doing hamstring curls and other heavy lifts; I think another person found relief doing prescribed PT exercises. Neliah found relief through surgery, though she had a confirmed labral tear and did have some hip pain/pinching from time to time.The only idea floated in this thread that, to my knowledge, nobody has looked into is vascular causes. A while back some people mentioned iliac artery compression in cyclists, where prolonged sitting in the bike seat "crimps" the iliac artery, which supplies the quads with blood. The symptoms of iliac artery compression are described as follows:
Symptoms may include vague lower limb pain, cramp, numbness, weakness, claudication [pain/impairment in walking], unexplained deterioration of cycling performance and swelling. The lower limb pain often affects the thigh rather than the buttock and calf
which doesn't sound too far off from the kinds of issues we've been having. Vascular involvement would also explain why, in general, we all find that our problems really only happen when we run, and get worse when we run hard.
But the main reason I steered away from this idea is that it wouldn't make sense for us to have coordination issues and pain in muscles on the opposite sides of the body—so for example, when my leg gets bad, my calf/popliteal area starts to cramp up, then my hamstring. But while this is happening, my coordination in my "swing" phase is getting thrown off too. But the muscles that swing my leg forward, my hip flexors and quads, are supplied by a completely different artery than my calf and hamstrings. I suppose it's possible that my gait is imparied because my calf/hamstring aren't functioning right because of ischemia (lack of blood supply), however.
In any case, the way to investigate this would be to see a vascular specialist. Perhaps someone familiar with athletes—probably cyclists, as this condition is most common in them. If my break from running doesn't do anything (I'll know by mid-January) I might consider this option if I can find anybody in Minnesota who's familiar with this kind of stuff. My other option is surgery, which I'm not 100% convinced will work. As I mentioned earlier, the lidocane shots (short acting local anesthetic) seemed to work, but the cortisone (long acting anti-inflammatory) did not make a difference.
So to conclude a long post, your options are:
1) try to get another MR-Arthrogram in a 3.0T machine
2) continue to see different physical therapists to try to find a muscular solution to the problem
3) explore the hence-unknown role of vascular supply by seeing/getting a referall to a vascular doctor to check your ankle–brachial index at rest and after a hard exercise effort and possibly even get an angiogram.