Titanium back plate for a PMMA keratoprosthesis: clinical outcomes.
Summary of "Titanium back plate for a PMMA keratoprosthesis: clinical outcomes."
To compare the rate of retroprosthetic membrane (RPM) formation in Boston Keratoprosthesis (BKPro) with polymethyl methacrylate (PMMA) versus titanium backplates.
Retrospective comparative chart review.
Multicenter study population: a total of 78 eyes with keratoprosthesis implants with either PMMA or titanium backplates were included in the study. To be included in the study, all subjects had to have completed a minimum of 6-month follow-up period. Incidence of RPM development at 6-month postoperative period was noted across the study population. PMMA and titanium backplates were then compared by their rate of association with subsequent RPM.
Twenty-three out of 55 eyes (41.8%) with PMMA backplates and three out of 23 eyes (13.0%) with titanium backplates had developed an RPM at 6 months after implantation. The titanium backplates were associated with significantly less RPM formation than PMMA backplates (p = 0.014, Chi-square test).
Titanium seems to be associated with less RPM formation than PMMA when used as a material for the BKPro back plate.
Cornea Service, Massachusetts Eye and Ear Infirmary, 243 Charles Street, Boston, MA, 02114, USA.
This article was published in the following journal.
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/21519940
- DOI: http://dx.doi.org/10.1007/s00417-011-1684-y
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Medical and Biotech [MESH] Definitions
The region in the dorsal ECTODERM of a chordate embryo that gives rise to the future CENTRAL NERVOUS SYSTEM. Tissue in the neural plate is called the neuroectoderm, often used as a synonym of neural plate.
The head of a long bone that is separated from the shaft by the epiphyseal plate until bone growth stops. At that time, the plate disappears and the head and shaft are united.
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General or unspecified injuries to the posterior part of the trunk. It includes injuries to the muscles of the back.
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