Erratum to: Clin Orthop Relat Res DOI 10.1007/s11999-009-1091-4

The captions for Figs. 2 and 4 for this article parenthetically refer to arrows that are not present in the figures.

The incorrect caption for Fig. 2 is:

Fig. 2 Anteroposterior radiograph demonstrates fragmentation of the ceramic liner (arrow).

The correct caption is:

Fig. 2 Anteroposterior radiograph demonstrates fragmentation of the ceramic liner.

The incorrect caption for Fig. 4 is:

Fig. 4 Anteroposterior radiograph of a patient with a chipped ceramic liner. A small ceramic fragment (arrow) can be visualized.

The correct caption is:

Fig. 4 Anteroposterior radiograph of a patient with a chipped ceramic liner. A small ceramic fragment can be visualized.

Fig. 3 incorrectly shows a picture of a 36-mm diameter head and chipped liner from a patient in a different study. A picture of the correct 28-mm diameter head and chipped liner is provided.

Fig. 3
figure 3

The retrieved liner and head show the fractured rim of the liner and ceramic fragments retrieved from the wound.

The authors regret these errors.