Neosalpingostomy / Fimbrioplasty

By RRM Academy Reviewed by Dr. Naomi Whittaker, MD, Board-Certified OBGYN, MIGS, NFPMC, FCI Updated May 14, 2026

Neosalpingostomy is a laparoscopic surgical procedure that creates a new opening at the fimbriated (distal) end of a fallopian tube that has become blocked or destroyed, typically by a hydrosalpinx. The companion procedure, fimbrioplasty, reconstructs and restores a partially obstructed or agglutinated fimbrial end where some tissue remains viable. Both address distal tubal disease, which differs anatomically and etiologically from proximal occlusion. Pelvic inflammatory disease, prior infection, and endometriosis-related adhesions are the most common causes of distal damage.

Outcomes after neosalpingostomy depend on the severity of tubal damage at the time of surgery. A review of 402 laparoscopic fimbrioplasty and neosalpingostomy cases found an overall intrauterine pregnancy rate of 26.1%, with outcomes strongly tied to disease stage and adhesion score: stage 1 (mild) disease yielded a 63% pregnancy rate, compared to 15% for stage 3 and 0% for stage 4. In the absence of adnexal adhesions the pregnancy rate was 73.9%; in severe adhesion cases it fell to 8.8%.¹ These numbers make patient selection central. Neosalpingostomy in mild-to-moderate distal disease is a meaningful restorative option. In severe, extensively damaged tubes, the clinical calculus shifts.

The restorative principle here is tube preservation over tube removal. Removing a hydrosalpinx and proceeding directly to IVF circumvents the tube entirely. It does not restore function; it bypasses the organ. Neosalpingostomy pursues the opposite goal: recreating a functional tube so the couple can conceive without external reproductive technology. Whether the tube is surgically worth repairing depends on the degree of fimbrial tissue remaining, the presence and density of adhesions, tubal wall thickness, and overall pelvic anatomy. These factors are assessed intraoperatively and cannot always be predicted from imaging alone.

Ectopic pregnancy risk is elevated after neosalpingostomy and varies with the extent of tubal damage. Early pregnancy monitoring with beta-hCG and ultrasound is standard following any tubal surgery. Recurrence of distal obstruction or hydrosalpinx formation over time is also possible, particularly in moderate-to-severe cases.

See also: hydrosalpinx, tubal-factor infertility, microsurgery, operative laparoscopy, fallopian tube anatomy.

This content is for educational purposes only and does not constitute medical advice. Consult an RRM clinician or healthcare provider for guidance specific to your situation.