What is a Kronig incision?

• A. An 8 cm vertical incision made in the lower uterine segment after the bladder is separated and retracted
• B. A transverse incision across the lower uterine segment
• C. A vertical incision in the upper uterine segment
• D. A curved incision in the uterus

Answer: (A)

A Kronig incision is a vertical incision in the lower uterine segment, typically about 8 cm long, made after the bladder has been separated from and retracted away from the uterus to expose the lower segment. This approach creates a straight, relatively long opening for delivery. It differs from the common low transverse incision, which goes across the lower uterine segment, and from a vertical incision in the upper (classical) uterine segment or a curved incision, which are not defined as Kronig. The bladder separation step helps protect the bladder and provides the exposure needed for this specific entry into the uterus.