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Biogeometry of femoral neck for implant placement

Author(s): Patwa J | Krishnan Ajay | Pamecha Chirayu

Journal: Indian Journal of Orthopaedics
ISSN 0019-5413

Volume: 40;
Issue: 4;
Start page: 224;
Date: 2006;
Original page

Keywords: Neck of femur; Fracture; Biogeometry; Tripple fixation.

Background : Treatment of fracture neck femur with three cannulated cancellous screws in an apex proximal configuration is practised in many parts of the world. Methods : Dimensions of femoral neck at the middle of transcervical neck using CT scan (live neck) and vernier caliper (dry cadeveric neck) in 20 subjects respectively were measured. Results : Inferior half of the neck is narrower than superior half. Conclusion : Biogeometry of the neck of femur does not accomodate two inferior screws and thus fixation of fracture neck femur with three canulated cancellous screws in an apex distal configuration is recommended.
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