Question: I am 32 years old and a hobby racing cyclist (approx. 3,000 to 5,000 kilometres per year). A few weeks ago I had a new cementless hip (TEP ceramic ball with plastic inlay). Now I wanted to know if there are any studies or experiences on whether you can cycle with artificial hip joints. Could there be a problem on a racing bike, for example, could the prosthesis become loose? The wear and tear on the joint is presumably limited. Can the joint still last for 15 to 20 years? M. Hettmer
Expert's answer: A study of endurance sports with at least partial joint relief (e.g. cycling) showed no evidence that the prosthesis can loosen prematurely. On the contrary: within the group studied, the prosthesis loosened in 57 per cent of non-athletes, but only in 18 per cent of athletes. However, sports with high impact loads (running or skiing) and extreme movements should be avoided. Cycling is recommended. Patients can continue with their sport four to six weeks after the operation in order to maintain and train their balance and coordination. However, I don't recommend cycling in groups at mass events or in club training because of the risk of falling. I would also avoid slippery surfaces, steep inclines or extreme gradients. In addition, a precise saddle height and low pedalling resistance are necessary in order to put as little strain as possible on the hip, especially in the initial period after the operation. Later on, there is nothing to be said against cycling in the medium power range. Even at maximum pressure, the load is still less than when walking. I know some cyclists who perform very well with their hip endoprostheses.