“…A complete tear of the distal biceps brachii tendon, while an uncommon injury, is readily diagnosed on the basis of history and physical examination. This injury has a well-described presentation of a traumatic event followed by pain in the antecubital fossa, pain and weakness with flexion and supination, and an abnormal hook test, as previously described in the literature (Nielsen, 1987;Bourne and Morrey, 1991;Rokito et al, 1996;D€ urr et al, 2000;Vardakas et al, 2001;Kelly et al, 2003;Dellaero and Mallon, 2006;Frazier et al, 2010;Behun et al, 2016). Partial tears, on the other hand, are rarely discussed in the literature and present a diagnostic challenge.…”