Background: Trochanteric hip fractures are common among elderly patients. They are categorized as stable and unstable fractures depending on integrity of postero-medial cortex. Integrity of lateral wall is important to prevent excessive fracture collapse and poor outcome. Objective: This study aimed to assess the results of using dynamic hip screw with trochanteric stabilizing plate (TSP) in management of unstable trochanteric fractures (A2 and A3 patterns in AO classification). Patients and methods: Forty patients with unstable hip fractures were operated in Kasr Alainy Hospital using dynamic hip screw (DHS) with TSP. The study had a minimum follow up of 18 months. Results: In this study, operative time ranged from 90 to 180 minutes with mean of 105.5 ± 24.06. Six patients (15%) had 500 cc packed RBCs transfusion and only one case (2.5%) needed 1000 cc of packed RBCs. At 6 weeks HSS ranged from 20 to 80 points, the mean was 54.94 ± 16.17 points. At 3 months the HSS ranged from 43 to 89 points, the mean was 70.22 ±12.65 points. At 6 months the HSS ranged from 50 to 100 points, the mean was 82.81 ±10.37 points. At 12 months the HSS ranged from 55 to 100 points, the mean was 89.09 ±9.20 points. At 18 months the HSS ranged from 62 to 100 points, the mean was 93.84 ± 7.95 points. Conclusion: TSP is a good option in management of unstable trochanteric fractures. We recommend making more studies on TSP to reveal its efficacy.