Letter to the Editor

Scheier H. Sandel J. (1976) Wear affecting the plastic cup in metal-plastic endoprostheses. Total hip prostheses, edited by Gschwend N. Debrunner H. , Williams and Wilkins Co., Baltimore, pp 186–190.

Weber B. Stuhmer G. (1976) The trunnion bearing total hip prosthesis. Engineering in medicine, Vol. 2, advances in artificial hip and knee joint technology, edited by Schaldach M. Hohmann D. , Springer-Verlag, Berlin.

Willert H. Semlitsch M. Buchhorn G. Kriete U. (1978) Materialverschleiss und gewebereaktion bei kunstlichen gelenken. Orthopade, 7, 62–83.