The real advantage between the new technique and the traditional one is the elimination of the risk of dislocation, the most significant complication. This danger is between 1% and 8% in the postero-lateral (traditional) technique: it is almost 0 in the anterior approach. The preservation of the gluteal muscles improves the stability of the joint and also avoids the risk of limping. Last but not least, there is a reduction of calcifications that sometimes, in the classical techniques, are observed following the necessary musculotendinous sections
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