New ceramic acetabular cups and femoral heads coated in hydroxyapatite ceramic, although having the advantage of wearing out at slower rates, also suffer from the disadvantage of becoming more easily dislocated. And once dislocated, it is likely that more surgery will be required.
至於新型態陶瓷材質的股骨及髖臼內襯，雖具有降低磨損率的優點，但卻也有容易「脫位」的缺點，一旦脫位，仍難逃再進手術房之苦。