Modification of PMMA Cements for Cranioplasty with Bioactive Glass and Copper Doped Tricalcium Phosphate Particles.
Teresa RussoRoberto De SantisAntonio GloriaKatia BarbaroAnnalisa AltigeriInna V FadeevaJulietta V RauPublished in: Polymers (2019)
Cranioplasty represents the surgical repair of bone defects or deformities in the cranium arising from traumatic skull bone fracture, cranial bone deformities, bone cancer, and infections. The actual gold standard in surgery procedures for cranioplasty involves the use of biocompatible materials, and repair or regeneration of large cranial defects is particularly challenging from both a functional and aesthetic point of view. PMMA-based bone cement are the most widely biomaterials adopted in the field, with at least four different surgical approaches. Modifications for improving biological and mechanical functions of PMMA-based bone cement have been suggested. To this aim, the inclusion of antibiotics to prevent infection has been shown to provide a reduction of mechanical properties in bending. Therefore, the development of novel antibacterial active agents to overcome issues related to mechanical properties and bacterial resistance to antibiotics is still encouraged. In this context, mechanical, biological, and antibacterial feature against P. aeruginosa and S. aureus bacterial strains of surgical PMMA cement modified with BG and recently developed Cu-TCP bioactive particles have been highlighted.
Keyphrases
- bone mineral density
- bone regeneration
- soft tissue
- bone loss
- stem cells
- postmenopausal women
- escherichia coli
- minimally invasive
- silver nanoparticles
- drug delivery
- quantum dots
- acute coronary syndrome
- papillary thyroid
- percutaneous coronary intervention
- coronary artery bypass
- hip fracture
- lymph node metastasis
- drug release
- childhood cancer