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products name: Expansive pedicle screw

 

(1) For the case of osteoporosis, expansive pedicle screw holding power increase 25-48% compared with ordinary pedicle screws.
(2) for the renovation of the spine cases, expansive pedicle screw holding power increase 41-77% compared with ordinary pedicle screws.
(3) For the surgery caused by repeated cases of pedicle screw loose screw channel, expansive pedicle screw fixation can also get reliable results.
(4) has no effect on the structural design of the hollow screw strength; even remove the bolt can still be used as a general in the screws.
(5) Simple operation, no special tools; in the process of locking nail bar auto-complete expansion pressure
Early: swelling pressure, the elastic fixing, mechanically stable
Long-term: new bone ingrowth, nail bone fitting, biological stability

 

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