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Complications of hydroxyapatite pegging: comparison between polycarbonate and titanium peg system
H Salour1, M Eshaghi, M Abrishami
1Shaheed Beheshti University of Medical Science, Tehran, Iran. hosalour@hotmail.com
European Journal of Ophthalmology
|May 31, 2007
Summary
Titanium pegs for hydroxyapatite implants show fewer complications than traditional polycarbonate pegs. This study suggests titanium offers better tissue tolerance and reduced adverse events, warranting further investigation.
Area of Science:
- Ophthalmology
- Biomaterials Science
Background:
- Polycarbonate pegs have been standard for hydroxyapatite pegging.
- Titanium peg systems offer potential improvements in tissue tolerance and complication reduction.
Purpose of the Study:
- To compare complication rates between polycarbonate and titanium peg systems for hydroxyapatite pegging.
- To evaluate tissue response and adverse events associated with each pegging system.
Main Methods:
- Retrospective chart review of 153 patients undergoing hydroxyapatite pegging.
- Analysis of complications associated with polycarbonate (Bio-Eye) and titanium (Dr-Perry new P-K) peg systems over a 5-year period.
- Statistical comparison of complication prevalence between the two groups.
Main Results:
- Titanium pegs were associated with significantly fewer overall complications (27%) compared to polycarbonate pegs (46%).
- Specific complications like granulation tissue, discharge, conjunctival overgrowth, and peg extrusion were less frequent with titanium.
- Fewer cases required peg removal for complications in the titanium group (7.5%) versus the polycarbonate group (35%).
Conclusions:
- Titanium peg systems demonstrate a lower incidence and severity of complications compared to polycarbonate systems.
- Further research into titanium peg complications is recommended to fully elucidate its long-term safety and efficacy.
