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The Sports has lots of qualities to keep fit and healthy. Problem: he uses the prostheses which are sometimes necessary for people ofOsteoarthritis!

Sport and jointsA double-edged relationship

The SportsFor carriers and carriers of prosthesesIs both a good and evil. Why? Recall that to start theOsteoarthritis, mortal gold,The main reason for the prosthesis, means a deformation of joints for many people and even those who are lagging overweight, due to the increased pressure that these excess pounds have on the skeleton. And that’s not all. The fat present around the capsule articular release of pro-inflammatory substances that corrode the cartilage. Finally, the passive lifestyle, which is often found in people overweightDiminishes the capacity for regeneration. For all these reasons, the regular practice of Sports comes highly recommended by all specialists bone health. But be careful not to overdo it! Beyond a certain limit, the positive effect of stress on the joints Sports becomes deleterious. Instead of thickening the cartilage weakens. This marks the beginning of a sad degeneration which can lead to the complete disappearance of the beautiful mantle cartilage.

Sport and joints: Beware high pressure

At the final stage of degradation, we recommend the establishment of a prosthesis. The principle is simple: replace the damaged joint by an artificial fill the same role. Obviously, this prosthesis must be able to withstand the pressure and the same time ensure optimum sliding between different anatomical parts. In general, we choose strong materials like titanium or steel screws, plates or rods. And we preferred to other more flexible to cover the bearing surfaces, cheap mortal gold,such as polyethylene. Problem: polyethylene is fragile! It erodes over time at a speed proportional to the pressures. And Sports increases the pressure. Note that when walking, thearticulation knee supports 4 to 5 times the body weight. When one begins to run, it can reach 10 to 14 times. Add the larger number of movements: one understands better why the prosthesis a Sports wears out faster than a sedentary (0.1 mm / year for non-practicing, 0.39 for sports). Should there be more layers of thick polyethylene for prosthetic sports? Maybe. But the problem is likely to occur when the anchorage areas with risk of necrosis, or loosening of bone fracture. Does this mean that osteoarthritis is condemned to live free of Sports? Surely not. He only advised to choose their subjects carefully. Cycling and swimming pose few problems. As for discipline called “staves” (standing), we never seek to force and to respect certain tenets. It is better, for example, play tennis on a clay court rather than on hard courts. And tomorrow? Everyone hopes, of course, that further progress in the material chosen, the surgical techniques and / or rehabilitation, will pose a prosthesis more robust and tonic. History remain Sports his whole life!