Niskanen, Raimo O, Mauri Y Lehtimäki, Martti M J Hämäläinen, Pertti Törmälä, and Pentti U Rokkanen. “Arthrodesis of the First Metatarsophalangeal Joint in Rheumatoid Arthritis: Biodegradable Rods and Kirschner-Wires in 39 Cases”. Acta Orthopaedica 64, no. 1 (January 1, 1993): 100–102. Accessed May 17, 2026. https://actaorthop.org/actao/article/view/21723.