Elbow Fracture

Abstract

Distal humerus fractures account for 23.21% of adult humerus fractures. The AO/OTA classification of distal humerus fractures are divided into the following: extra-articular fracture, partial intra-articular fracture, and complete intra-articular fracture. Furthermore, extra-articular fractures are divided into avulsion fracture of the condyles, simple fracture of the metaphysis, and comminuted fracture of the metaphysis. The avulsion fracture of the condyles accounts for 4.96% of the adult humerus fracture, the simple fracture of the metaphysis accounts for 7.63% of the adult humerus fracture, and the metaphyseal fracture of the metaphysis accounts for 1.08% of the adult humerus fracture. Moreover, partial intra-articular fractures are sub-divided into lateral condyle sagittal fractures, medial condyle sagittal fractures, and coronal fractures. Lateral condyle sagittal fractures account for 3.57% of adult humerus fractures. Medial condyle sagittal fractures account for 2.00% of adult humerus fractures, coronal fracture accounts for 0.28% of adult humerus fractures. Complete intra-articular fractures are divided into simple intra-articular fractures, simple metaphyseal fractures; simple intra-articular fractures, comminuted metaphyseal fractures, and intra-articular comminuted fractures. The simple intra-articular fractures and simple fracture of the metaphysis account for 1.32% of the adult humerus fracture. The simple intra-articular and comminuted metaphyseal fractures account for 1.85% of the adult humerus fractures, and the intra-articular comminuted fracture accounts for 0.52% of the adult humerus fracture.