Norian Skeletal Repair System

Ultimately, the cement hardens to form dahllite, a carbonated apatite similar to that found in the mineral phase of bone [27, 47]. The cement has a micro-porous structure with pores smaller than 1 //m [86]. Calcium phosphate cement is available from multiple manufactures, as an example Norian Skeletal Repair System (SRS, Synthes West Chester, PA) consists of a liquid sodium phosphate solution and powder monocalcium phosphate monohydrate, tricalcium phosphate, and calcium carbonate. After mixing, the cement has a working time of approximately five minutes and hardens in approximately ten minutes. The material has a compressive strength of approximately 10 MPa at 10 minutes and maximum compressive strength of approximately 50 MPa within 24 hours. 

Manzotti, A., Confalonieri, N., and PuUen, C. 2006. Grafting of tihial hone defects in knee replacement using norian skeletal repair system. Archives of Orthopaedic and Trauma Surgery 126 594-98. Mathew, M., Schroeder, L. W., Dickens, B., and Brown, W. E. 1977. The crystal structure of a-Ca3(P04)2. ActaCrystB33 1325-33. 

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