Unread postby Spencer Chang, MD » Sun Jan 07, 2007 4:40 am
I guess the real question is how much pain are you having and is it hampering your ability to pole vault? In all likelihood this is really an osteochondral lesion of the talus, which usually occurs from ankle sprains.
My analogy is that it is like having a pothole in the cartilage of your ankle bone. I suspect the cartilage lesion on your navicular may be a reaction to the lesion on your talus.
I would have to look at your MRI and examine you to figure it out.
Are you going to the Summit? Maybe I can look at it there.
Typically, I don't treat these in immobilization that long. Although limiting impact loading (jumping and running) may allow new "fibrocartilage", which is weaker that normal cartilage, but healthier than no cartilage, fill in... sometimes this doesn't work. Also, there have been studies that suggest immobilization isn't good for cartilage. In the ankle, there is a give and take. When we immobilize our patients, they put less stress and pressure on their joints. However, if one were to keep weight off of the limb but move the joint gently, it is probably better for the cartilage to heal. How many people would truly stay on crutches if it doesn't hurt to walk? That's why doctors place their patients in cam walking boots or casts. But half a year... come on.
If the lesion is truly causing pain, then it is really the beginnings of arthritis in that joint. However, if the lesion is small, there are procedures which may allow fibrocartilage to grow back in the defect and make it at least asymptomatic and feel normal.
If the pain is more from inflammation in the joint and soft tissue impingment or synovitis, anti-inflammatories or cortizone shots may help. However, cortizone can actually weaken or possibly damage the cartilage if taken in excess, so be careful.
Glucosamine and Chondroitin Sulfate is like taking vitamins for your cartilage. It might not help, but it is unlikely to hurt you except for your wallet.
If you can, bring your MRI, bone scans, and x-rays and I'll be happy to look at them in 2 weeks.
Good Luck,
Orthopaedic Surgeon, Dual Fellowship Trained in Sports Medicine, and Foot and Ankle Surgery.
Medical Advisor to USATF Pole Vault Development
University of Hawaii Pole Vault Coach
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