Radmer, S. et al. 2003. Poor experience with a hinged endoprosthesis (WEKO) for the metacarpophalangeal jointsAll 28 prostheses removed within 2 years in 8 patients having rheumatoid arthritis. Acta Orthopaedica. 74, 5 (Jan. 2003), 586–590. DOI:https://doi.org/10.1080/00016470310018009.