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Locking Or Poller Screws (Visit this link)
Medscape 2000 Locking and Poller Screws For fractures located in the metaphysis of the proximal or distal tibia, intramedullary nailing achieves less fracture site stability than nailing of diaphyseal fractures. This is caused by the decreased contact between the nail and the endosteal surface of the tibia. This, in turn, places more stress on the interlocking bolts adjacent to the fracture. Inserting screws, which contact the nail, is a method used to increase the stability of the nail-bone construct. These screws work by decreasing the effective diameter of the intramedullary canal and block translation of the bone on the interlocking screws
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Added: Mon Apr 10 2006
