Least failure in sterilization occurs with:
Female tubal sterilization methods-10 year cumulative failure rates:
Unipolar cauterisation – 0.75%
Postpartum tubal excision – 0.75%
Silastic ring/fallope ring – 1.77
Interval tubal exclusion – 2.01
Bipolar coagulation – 2.48
Hulka - clemens clips – 3.65
Note: Although unipolar cauterization has least failure rates, but is not preferred method for female steriliization as it leads to serious gastrointestinal burns.
Falope ring
Bipolar cautery
Unipolar cauterisation
Hulka clip
Unipolar cauterisation