Abstract:

BACKGROUND: Clinical judgments of local blood supply after femoral neck fracture are many; however, the disadvantages of these methods are also a lot. Especially, it cannot accurately judge the blood supply of 2-3 grade blood vessels around femoral neck fracture.
OBJECTIVE: Using three-dimensional magnetic resonance angiography to study the blood circulation of the femoral head after femoral neck fracture, providing a basis for the choice of surgical approaches.
METHODS: Sixteen patients with femoral neck fracture admitted at 2008-07/12 did not receive three-dimensional magnetic resonance angiography and were treated with closed reduction and double-headed pressurizing hollow screw as control group. Thirty-three patients with femoral neck fracture admitted at 2009-01/2011-02 underwent MRI and three-dimensional magnetic resonance angiography, closed reduction and two-headed compression screw fixation was performed in 30 cases as experimental group and hip replacement in 3 cases.
RESULTS AND CONCLUSION: In the control group, 11 cases had osteal healing and 5 cases needed other treatment; in the experimental group, 29 cases had osteal healing and 1 case needed other treatment. The three-dimensional magnetic resonance angiography can show the arteries and ramus around femoral neck clearly, and provide reference for selection of surgical approaches and reducing the incidence of secondary surgery.