The Ceramic Option in Ball Head Revision Surgery
A ceramic ball head design with metal sleeves was developed to be used in revision surgery if the stem is well fixed in the bone.
Takashi Nakamura, Kimihiro Yamashita and Masashi Neo
P. Merkert et al., "The Ceramic Option in Ball Head Revision Surgery", Key Engineering Materials, Vols. 309-311, pp. 1325-1328, 2006