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Ultrasonic fragmentation for vitrectomy and associated surgical procedures
Transactions. Section on Ophthalmology. American Academy of Ophthalmology and Otolaryngology
|May 1, 1976
Summary
Ultrasonic fragmentation (USF) effectively treats various eye conditions by fragmenting ocular tissues for aspiration. This minimally invasive technique shows encouraging results with a low complication rate, making it a valuable option before radical procedures.
Area of Science:
- Ophthalmology
- Surgical Techniques
- Medical Devices
Background:
- Ultrasonic fragmentation (USF) has been utilized since 1973 for various intraocular procedures.
- It offers a method for fragmenting and aspirating ocular tissues like the lens, vitreous, iris, and ciliary body.
Purpose of the Study:
- To evaluate the efficacy and outcomes of ultrasonic fragmentation in a variety of ophthalmic conditions.
- To report on the complication rates and anatomical success of USF.
Main Methods:
- USF was performed on 148 eyes across diverse conditions.
- The procedure involves fragmenting tissues for aspiration through a 23-gauge cannula via small incisions.
- Complications and anatomical success rates were meticulously recorded.
Main Results:
- High success rates were observed in conditions such as aphakic bullous keratopathy (78%), pupillary block (100%), and vitreous opacification (100%).
- Significant improvements were noted in massive vitreous hemorrhage (86% clearance, 58% vision improvement) and vitreous contraction (100% removal, 100% retinal reattachment).
- An overall good anatomical result was achieved in 88% of cases, with a low complication rate of 4.8%.
Conclusions:
- Ultrasonic fragmentation is a safe and effective procedure for numerous ophthalmic conditions.
- Its minimally invasive nature and high success rates support its consideration before more aggressive surgical interventions.
- The technique demonstrates a favorable risk-benefit profile with encouraging visual and anatomical outcomes.