Correct Answer: D. Kroener’s procedure
Fimbriectomy (also called fimbrectomy) is the surgical removal of the fimbriae of the fallopian tube, and this procedure is classically known as Kroener's procedure. This is a method of permanent female sterilization that works by preventing the ovum from entering the fallopian tube, as the fimbriae are responsible for capturing the released ovum during ovulation. The procedure can be performed via laparotomy or laparoscopy. Kroener's procedure is less commonly performed in modern practice compared to other tubal ligation techniques, but it remains an important historical and examination-focused concept in gynecology. The key discriminating feature is that it specifically targets the fimbriae rather than ligating or occluding the tube itself, making it mechanistically distinct from other sterilization methods. In Indian clinical practice, while tubal ligation remains the most common female sterilization method under the National Family Planning Programme, knowledge of all sterilization techniques including fimbriectomy is essential for comprehensive gynecological training and board examinations.
Why the other options are wrong
A. Uchida's procedure — Uchida's procedure is a method of tubal sterilization that involves ligation of the tube with excision of a segment, but it is NOT fimbriectomy. This is a trap for students who confuse different tubal ligation techniques. Uchida's is performed via laparotomy and has a lower failure rate, but it does not specifically target the fimbriae. B. Pomeroy technique — The Pomeroy technique is the most commonly used method of tubal sterilization worldwide and in India, involving ligation of a loop of tube and excision of the intervening segment. While widely performed, it is NOT fimbriectomy. This option traps students who confuse the most popular sterilization method with the specific procedure of fimbriae removal. C. Irving's procedure — Irving's procedure is another tubal sterilization technique where the proximal end of the divided tube is buried in the myometrium and the distal end is ligated and buried in the broad ligament. It has a very low failure rate but does not involve fimbriectomy. This is a distractor for students unfamiliar with the specific anatomy targeted by Kroener's procedure.
High-Yield Facts
- Kroener's procedure = fimbriectomy = removal of fimbriae of fallopian tube for permanent sterilization
- Mechanism: Prevents ovum capture by fimbriae, blocking entry into the tube
- Pomeroy technique is the most common tubal sterilization method in India, NOT fimbriectomy
- Irving's procedure has the lowest failure rate (~0.5–1%) among tubal ligation methods
- Uchida's procedure involves ligation + segmental excision with higher success rate than Pomeroy
- Fimbriectomy can be performed via laparotomy or laparoscopy
Mnemonics
FIMB = Kroener Fimbriae removal = Kroener's procedure. Remember: Kroener targets the Key structure (fimbriae) that Katches the egg. Tubal Ligation Methods (PUKI) Pomeroy (most common), Uchida, Kroener (fimbriectomy), Irving (lowest failure). Use this to distinguish all four major techniques in one mnemonic.
NBE Trap
NBE pairs fimbriectomy with other tubal ligation techniques (Pomeroy, Irving, Uchida) to trap students who memorize names without understanding the anatomical target—Kroener's specifically removes fimbriae, not the tube itself.
Clinical Pearl
In Indian government hospitals and family planning clinics, the Pomeroy technique remains the gold standard for tubal sterilization due to its simplicity and cost-effectiveness, but Kroener's fimbriectomy is occasionally performed when the tube is damaged or in specific clinical scenarios—always recognize it by its unique mechanism of fimbriae removal rather than tubal occlusion.
_Reference: DC Dutta's Textbook of Obstetrics (7th ed.), Ch. 27 (Contraception & Sterilization); OP Ghai's Essential Obstetrics (9th ed.), Ch. 24_