A series of 100 consecutive patients with pertrochanteric hip fractures treated by the Ender method of intramedullary nailing is reported. The average age of the patients was 77.26 years (range, 34 to 94 years). Followup of the patients was from 4 to 15 months, with an average of 7 months. The mortality rate was 9% and the rate of serious complications was 8%. All fractures of the 50 patients followed were healed at 4 months and the functional results were generally good. This method appears to offer excellent results and may be the result of fast operating time, minimal surgical trauma, and ease of performance.