“…Long-term reviews of De la Caffiniere prostheses (Chakrabarti et al., 1997; Johnston et al., 2012; Sondergaard et al., 1991) showed survival rates ranging from 76% to 82% and loosening up to 40%. The long-term studies of current ball-and-socket prostheses (Apard and Saint Cast, 2009; Cootjans et al., 2017; Martin-Ferrero, 2014; Toffoli and Teissier, 2017; Vissers et al., 2019) report better survival (89%–96%) and lower loosening rates (4%–7%) in these prostheses, but may experience dislocation at a frequency of approximately 5%. These data were expected because De la Caffiniere implants, despite being a ball-and-socket design, have the important drawbacks of being constrained and cemented, while current prostheses are modular, uncemented, and unconstrained.…”