Fig. 2From: Severe traumatic valgus instability of the elbow: pathoanatomy and outcomes of primary operationAnteroposterior (a) and lateral (b) radiographs of the injured elbow. The fracture fragment of the radial head (red arrow) is remarkably displaced. A free bone fragment is found on the medial side of the elbow (yellow arrow). The valgus stress radiograph of the injured elbow (c) demonstrates medial joint space widening (green arrow)Back to article page