Hilgen, Verena, Mustafa Citak, Eik Vettorazzi, Carl Haasper, Kimberly Day, Michael Amling, Thorsten Gehrke, and Matthias Gebauer. 2013. “10-Year Results Following Impaction Bone Grafting of Major Bone Defects in 29 Rotational and Hinged Knee Revision Arthroplasties”. Acta Orthopaedica 84 (4):387-91. https://doi.org/10.3109/17453674.2013.814012.