Double intramedullary cortical button versus suture anchors for distal biceps tendon repair: a biomechanical comparison. - Siebenlist, Sebastian; Buchholz, Arne; Zapf, Julian; Sandmann, Gunther; Braun, Karl; Martetschläger, Frank; Hapfelmeier, Alexander; Kraus, Tobias; Lenich, Andreas; Biberthaler, Peter; Elser, Florian (Knee Surgery, Sports Traumatology, Arthroscopy, 2015)