Trochanteric Femur Fracture Operated With Dynamic Hip Screw System (DHS) Augmented With a Biphasic Apatite Sulphate Combined With Systemic or Local Bisphosphonate

Routine procedure for anesthesia and infection prophylaxis according to the clinics routines will be followed. The patient is supine with the fractured leg positioned in traction table. The biplanar x-ray device is moved and adjusted for proper simultaneous AP and lateral view. Hip region is washed and dressed in sterile draping's. Using standard proximal femur osteosynthesis technique 2.0 mm diameter Kirschner wire is placed in the middle zone of the femoral neck in AP and lateral view. The canal is opened using 6 mm drill bit and measured length of dynamic hip screw is placed in the femoral head and neck.

Zoledronic acid (ZA), is a bisphosphonate, and has been shown to reduce the risk of hip fracture by 41% in post-menopausal women. For systemic injection, 4 mg (as per clinical protocol) will be injected intravenously 1-2 weeks after surgery. For local delivery, 1 or 2 mg Zoledronic Acid will be added to 5 or 10 mg CERAMENT BVF during mixing and the mixture will be injected.

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