Response by Dr. Lapaj to comment on Lapaj et al.: Retrieval analysis of titanium nitride (TiN) coated prosthetic femoral heads articulating with polyethylene
1 Department of General Orthopaedics, Musculoskeletal Oncology and Trauma Surgery, Poznan University of Medical Sciences, Poznań, Poland. Electronic address: alefazajapierdole@tlen.pl.
2 Metal Examining Division, Metal Forming Institute, Poznań, Poland.
3 Department of General Orthopaedics, Musculoskeletal Oncology and Trauma Surgery, Poznan University of Medical Sciences, Poznań, Poland.
4 Surface Engineering and Tribology Laboratory, Metal Forming Institute, Poznań, Poland.