Polishing device for orthopedic devices

A method for polishing orthopedic devices comprising:

• rotating a polishing device against a surface of an orthopedic device in the presence of a dope, the orthopedic device comprising an acetabular cup of a hip implant, the surface comprising a concave surface of the acetabular cup, the concave surface comprising titanium or zirconium, the polishing device having a three-dimensional, rounded shape that is inserted into the concave surface of the acetabular cup, the polishing device including a polishing head defining a polishing surface, the polishing head including a base member that expands outwardly to form the polishing surface such that the polishing surface has a circumference that is larger than a circumference of the base member, the polishing head comprising a fiber structure impregnated with a polymer impregnant, the fiber structure comprising a felt substrate, the polymer impregnant comprising a thermoset polymer, wherein the polymer impregnant is present in the polishing head in an amount greater than 20% by weight of the polishing head, wherein the fiber structure includes a first fiber and a second fiber, the first fiber having a first denier and the second fiber having a second denier, the second denier being greater than the first denier, and wherein the polishing head is rotated against the surface of the acetabular cup until the surface displays a surface roughness of 2 RA or less.