The blood supply to the capitellar fragments provided by the fine branches of the circumflex humeral artery can be damaged by surface compression, e.g. by a T-plate, and by the constricting effect of cerclage wires. Since the interlocking screws, as peripheral load-bearing fixation elements, penetrate the tissue only at certain points, damage to the soft-tissue zone near the capitellum is minimized so that the blood supply in the fractured capitellum is given a maximum chance of recovery.