[Dual mobility cup: successes, risks and lessons learned].

A narrative review of the development and evolution to date of the double mobility cups is made, focusing on their successes, failures and teachings. The tools with which we have to prevent and treat prosthetic hip dislocation and the main problems are mentioned. The main objective of this publication is to make reflections and comments about what we should be attentive to in a world of designs that currently exist in the market with a diversity of designs, materials, alloys, types of polyethylene, etc. Some models are found to obtain a stable long-term fixation, the problem that potentially represents the different contemporary models of double mobility and their clinical results. The previous points are discussed and commented and conclusions and recommendations were reached.