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Fig. 1

Modified classification of unstable intertrochanteric fracture.

Fig. 2

Photograph shows measurements of neck-shaft angle (∂) and neck screw sliding distance (D).

Fig. 3

(A) Preoperative AP radiograph of a 86-year-old male with intertrochanteric fracture.

(B) Fracture pattern of B1 unstable reverse oblique fracture by 3D computed tomography.

(C) Postoperative AP radiograph of Gamma nail insertion with percutaneous 2 cannulated screws fixation.

(D) AP radiograph showed satisfactory reduction at 3 months post-operation.

Fig. 4

(A) Preoperative AP radiograph of a 80-year-old male with intertrochanteric fracture.

(B) Fracture pattern of B2 unstable fracture by 3D computed tomography.

(C) Postoperative AP radiograph of Gamma nail insertion with percutaneous 2 cannulated screws fixation.

(D) AP radiograph showed 1 cannulated screw pull-out at 6 months post-operation.

(E) AP radiograph showed bone union with satisfactory reduction at 12 months post-operation.

Fig. 5

(A) Preoperative AP radiograph of a 80-year-old female with intertrochanteric fracture.

(B) Fracture pattern of B1 unstable fracture by 3D computed tomography.

(C) Postoperative AP radiograph of proximal femoral nail insertion with satisfactory reduction.

(D) AP radiograph showed neck screw back out and varus angulation at 2 months post-operation.

(E) Z-effect phenomenon was shown at 3 months postoperation.

(F) Bipolar hip arthroplasty was performed.

Table 1

Distribution of modified classification between study group and control group

Table 2

Data according to operative method between study group and control group

Table 3

Average values of neck shaft angle between study group and control group

Table 4

Summary of complications

Figure & Data

REFERENCES

Citations

Citations to this article as recorded by  

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• Additional Fixations for Sliding Hip Screws in Treating Unstable Pertrochanteric Femoral Fractures (AO Type 31-A2): Short-Term Clinical Results
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