Surface polishing positively influences ease of plate and screw removal
| Autor: | J. S. Hayes, Robert Geoff Richards, U. Seidenglanz, Charles W. Archer, S. G. Pearce, Alexandra I. Pearce |
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| Rok vydání: | 2010 |
| Předmět: |
Reoperation
commercially pure titanium medicine.medical_specialty lcsh:Diseases of the musculoskeletal system Materials science Bone Screws lcsh:Surgery Polishing Biocompatible Materials Industrial Oils Prosthesis Design Bone and Bones screw removal titanium-6%aluminium-7%niobium Fracture Fixation Osteogenesis Prosthesis Fitting Materials Testing Fracture fixation medicine Animals Locked plate Tibia Device Removal Sheep Domestic Titanium Foreign-Body Reaction Soft tissue lcsh:RD1-811 Compression (physics) Surgery locking compression plate Electropolishing in vivo Female Implant lcsh:RC925-935 Bone Plates implant removal Biomedical engineering |
| Zdroj: | European Cells & Materials, Vol 19, Pp 117-126 (2010) Europe PubMed Central |
| Popis: | Difficulties removing temporary fracture fixation devices due to excessive bony on-growth results in extended surgical time leading to excessive blood loss, debris contamination and potentially refracture. Commercially available locking plates and screws are manufactured for clinics with a micro-rough surface, which contributes to the excessive bony on-growth reported. We have applied polishing technology to commercially pure titanium locking compression plates (LCP) and titanium-6%aluminium-7%niobium (TAN) plates and screws to assess if it can alleviate problems with strong bony overgrowth. Samples were implanted for 6, 12 and 18 months in a bilateral sheep tibia non fracture model and assessed for screw removal torque, percentage of bone contact and tissue-material response. Both electropolishing (p=0.001) and paste polishing (p=0.010) of TAN screws significantly reduced the mean torque required for removal compared to their micro-rough counterparts. This was accompanied by a trend for a lower percentage of bone contact for polished screws. This difference in bone contact was significant for paste polished TAN screws (p |
| Databáze: | OpenAIRE |
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