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LAPAROSCOPIC MANAGEMENT OF UTERINE PROLAPSE: SACROHYSTEROPEXY AND PECTOPEXY

Gynecology / Apr 11th, 2026 10:03 am A⁺ | a^-

BASIC INFORMATION

Date & Time: 11 April 2026, 15:01:34 Indian Standard Time

Lecture Handout Prepared from the Teaching Session by: Dr. R. K. Mishra

SUMMARY

This lecture provides a comprehensive overview of uterine-preserving laparoscopic surgery for pelvic organ prolapse, focusing on the principles and techniques of sacrohysteropexy and pectopexy. Dr. Mishra emphasizes the modern "tension-free" principle of prolapse repair, which utilizes a polypropylene mesh to create a supportive neoligament, contrasting it with traditional suture-based repairs. The lecture details the anatomical basis of prolapse, diagnostic evaluation with dynamic MRI, and patient selection criteria. Step-by-step procedural guides for both sacrohysteropexy (the gold standard for thin patients) and pectopexy (the preferred alternative for obese patients) are provided. Key aspects covered include patient positioning, port placement, identification of critical anatomical landmarks such as the sacral promontory and Cooper's ligament, and meticulous techniques for mesh fixation and peritonealization to prevent complications like bowel adhesions, internal herniation, and mesh erosion.

KEY KNOWLEDGE POINTS

Surgical Principle: Modern prolapse repair is based on the tension-free principle, using a synthetic mesh to create a neoligament and induce supportive fibrosis, which avoids the high recurrence rates associated with tension sutures.
Primary Techniques: The main uterine-preserving laparoscopic procedures are sacrohysteropexy and pectopexy.
Procedure Selection: Sacrohysteropexy (fixation to the sacral promontory) is the gold standard for thin patients. Pectopexy (fixation to the pectineal/Cooper's ligament) is preferred for obese patients where sacral access is difficult.
Diagnostic Imaging: Dynamic contrast MRI is essential for diagnosis, using the pubococcygeal line as a reference to identify organ descent during a strain maneuver.
Sacrohysteropexy Technique: Involves fixing a mesh from the posterior cervix/uterus to the anterior longitudinal ligament over the sacral promontory.
Pectopexy Technique: Involves fixing a T-shaped mesh from the anterior cervix/uterus to the bilateral Cooper's ligaments.
Complication Prevention: Meticulous peritoneal closure (peritonealization) over the mesh is mandatory to prevent bowel adhesions and internal herniation.
Future Fertility: Patients undergoing these procedures must be counseled that future pregnancies require delivery by cesarean section.

INTRODUCTION

Pelvic organ prolapse is a common and debilitating condition resulting from the weakening of the pelvic floor's muscular and ligamentous support. It manifests as a herniation of pelvic organs—uterus, bladder, or rectum—into the vaginal canal, significantly impairing a patient's quality of life. While traditional open and vaginal surgeries often relied on approximating weakened native tissues under tension with high recurrence rates, modern laparoscopic techniques have revolutionized management. These minimally invasive procedures are based on the proven principles of tension-free herniorrhaphy, utilizing synthetic mesh for durable anatomical reinforcement. For women who wish to preserve their uterus, laparoscopic hysteropexy offers an effective solution. This lecture provides postgraduate surgeons with the foundational knowledge to perform the two primary techniques: sacrohysteropexy and pectopexy.

LEARNING OBJECTIVES

To understand the pathophysiology of pelvic organ prolapse and the principles of tension-free mesh repair.
To learn the indications, contraindications, and patient selection criteria for sacrohysteropexy and pectopexy.
To master the key anatomical landmarks and step-by-step surgical techniques for performing laparoscopic sacrohysteropexy and pectopexy.
To identify, prevent, and manage potential intraoperative and postoperative complications associated with mesh-based hysteropexy.

CORE CONTENT

1. Principles of Prolapse and Repair

1.1. The Dock and Mooring Analogy

The Dock: The pelvic floor, primarily the levator ani muscle complex, acts as the stable base or "dock."
The Boats: The pelvic organs—bladder, uterus, and rectum—are the "boats."
The Moorings: A network of ligaments (e.g., uterosacral, cardinal) acts as "moorings." Prolapse occurs when these moorings weaken or break, allowing the organs to descend.

1.2. The Principle of Tension-Free Repair

Derived from modern hernia surgery, this principle avoids suturing weakened native tissues together under tension, which is prone to failure. Instead, a synthetic (polypropylene) mesh is used as a scaffold to bridge the defect or reinforce support. This mesh incites a fibrotic reaction, creating a strong, new supportive layer (a "neo-ligament") that durably corrects the prolapse without tension.

2. Preoperative Evaluation and Patient Selection

2.1. Clinical Assessment and Indications

Surgery is indicated for patients with symptomatic prolapse (e.g., pelvic heaviness, low back pain, vaginal lump) or its complications (e.g., recurrent UTIs, hydronephrosis). Uterine-preserving procedures are suitable for women desiring to retain their uterus, particularly those who have not completed their families. These procedures are generally indicated for up to Grade 2 prolapse and are not effective for complete procidentia (Grade 3-4).

2.2. Imaging Studies

Dynamic Contrast MRI: This is the key diagnostic tool. The patient is imaged in the lateral position at rest and during a strain (Valsalva) maneuver.
Pubococcygeal Line: A reference line is drawn from the inferior border of the pubic symphysis to the tip of the coccyx. Any organ descending below this line under stress is considered prolapsed.

2.3. Choice of Procedure

The choice between the two primary techniques depends largely on the patient's body habitus:

Sacrohysteropexy: The gold-standard procedure for thin patients.
Pectopexy: The preferred technique for obese patients, as intra-abdominal fat can make access to the sacral promontory extremely difficult.

3. Operative Principles and Positioning

Patient Position: 30-degree Trendelenburg (head-down) position with legs apart.
Urinary Catheter: A Foley catheter is mandatory to keep the bladder empty, maximizing surgical space and preventing injury.
Surgical Team: The primary surgeon typically stands on the patient's left, with an assistant on the right.
Port Placement: A four-port technique is commonly used.

4. Surgical Technique: Laparoscopic Sacrohysteropexy

This procedure anchors the uterus to the sacral promontory using a posterior mesh.

Step 1: Identification of the Sacral Promontory

The peritoneum overlying the sacral promontory is incised vertically, just to the right of the midline to avoid the sigmoid mesocolon.
The anterior longitudinal ligament is dissected and exposed. This white, fibrous band is the target for fixation. The middle sacral vessels lie deep to this ligament and must be avoided. The right ureter is located approximately 3 cm laterally.

Step 2: Mesh Fixation to the Uterus

A polypropylene mesh (approx. 3 cm wide, 20 cm long) is used.
Sutures are placed on the posterior aspect of the uterus. The first sutures anchor the corners of the mesh to the uterosacral ligaments at their cervical insertion.
Additional sutures are placed superiorly along the midline of the posterior uterine corpus.
Critical Precaution: Sutures must not extend to the uterine fundus. Fixing the mesh to the rounded fundus would create a shear point, causing the mesh to cut through the myometrium when tension is applied.

Step 3: Retroperitoneal Tunneling and Suspension

A retroperitoneal tunnel is created by dissecting superiorly from the uterine incision, remaining to the right of the rectum.
The uterus is elevated by an assistant to place the mesh under appropriate (not excessive) tension.
The distal end of the mesh is fixed to the anterior longitudinal ligament over the sacral promontory using non-absorbable sutures or tacks.

Step 4: Peritoneal Closure (Peritonealization)

The peritoneal defect created over the sacral promontory and along the mesh track is meticulously closed with a continuous suture. This is mandatory to prevent bowel adhesions and internal herniation.

5. Surgical Technique: Laparoscopic Pectopexy

This procedure anchors the uterus to the bilateral Cooper's ligaments using an anterior mesh, ideal for obese patients.

Step 1: Peritoneal Dissection and Landmark Identification

The anterior leaf of the broad ligament is incised bilaterally, from the round ligament towards the deep inguinal ring.
The medial umbilical ligament is a key landmark. Dissection proceeds lateral to this ligament, which is reflected medially. Incising medial to this ligament risks bladder injury.
Cooper's ligament (pectineal ligament) is identified as a pearly white fibrous structure on the superior pubic ramus.

Step 2: Bladder Dissection and Mesh Placement

The bladder is mobilized inferiorly off the anterior cervix to create a space for mesh attachment.
A T-shaped polypropylene mesh is prepared.
The base of the "T" is sutured to the anterior surface of the uterus and cervix using approximately six non-absorbable sutures.
The two long arms of the mesh are tunneled extraperitoneally and fixed to the ipsilateral Cooper's ligament using sutures or tacks.

Step 3: Peritoneal Closure

The anterior leaf of the broad ligament and other peritoneal incisions are closed with a continuous absorbable suture (e.g., using an Aberdeen termination knot). This completely isolates the mesh from intra-abdominal contents.

SURGICAL PEARLS

Tension-Free Principle: Do not attempt to correct anatomy with tension; use the mesh to create a new, tension-free support structure. It is better for the mesh to be slightly loose than too tight, as fibrosis will cause some shrinkage.
Sacral Dissection Safety: Always incise the peritoneum to the right of the midline to avoid the sigmoid colon. The right ureter is ~3 cm lateral to the dissection and must be protected.
Sacral Fixation: When using a tacker on the promontory, use a two-handed stabilization technique to prevent slippage and injury to the median sacral vessels. If suturing, pass the needle parallel to the ligament fibers to avoid needle breakage on bone.
Pectopexy Dissection Safety: Always dissect lateral to the medial umbilical ligament to avoid bladder injury.
Suture Placement: When suturing the uterosacral ligaments, ensure the needle does not penetrate the full thickness of the vaginal wall to prevent future mesh erosion.
Mesh Handling: Introduce the mesh through a cannula, not directly through the skin, to minimize the risk of bacterial contamination.
Peritonealization: A well-closed peritoneum is the best anti-adhesive barrier. Ensure no mesh is visible at the end of the procedure.

COMPLICATIONS AND THEIR MANAGEMENT

Intraoperative:
- Vascular Injury: Injury to the middle sacral vessels (sacrohysteropexy) or vessels in the space of Retzius (pectopexy). Controlled with pressure, clips, or energy devices.
- Ureteric Injury: A risk during lateral dissection near the sacral promontory. Identification is key to prevention.
- Bladder Injury: A risk during anterior dissection for pectopexy. Avoided by staying lateral to the medial umbilical ligament.
- Bowel Injury: Possible during peritoneal dissection, particularly on the left near the sigmoid colon.
Late Postoperative:
- Mesh Erosion/Extrusion: Mesh erodes through the vaginal wall. Small, asymptomatic erosions can be observed. For small, symptomatic erosions, first-line therapy is topical vaginal estrogen cream. Failure or large extrusions require surgical excision of the exposed mesh.
- Mesh Infection/Abscess: A serious complication that may require partial or complete mesh removal.
- Bowel Adhesion and Internal Herniation: Can lead to pain and obstruction. Prevented by complete peritonealization of the mesh.
- Chronic Pain/Dyspareunia: Can result from excessive mesh tension or nerve entrapment.

MEDICOLEGAL AND PATIENT SELECTION CONSIDERATIONS

Informed Consent: Patients must be counseled extensively on the risks of synthetic mesh, including erosion, infection, chronic pain, and the potential need for future surgery.
Procedure Rationale: The choice between sacrohysteropexy and pectopexy must be documented based on patient anatomy (e.g., obesity).
Associated Defects: If a significant cystocele or rectocele coexists, a simple hysteropexy may be insufficient, and a more complex repair with anterior/posterior mesh grafts may be required.
Future Pregnancy: Patients must be counseled that any future pregnancy must be delivered via cesarean section, as the fixed vaginal vault cannot stretch for vaginal delivery. It is advisable for the primary surgeon to perform the subsequent cesarean section due to the altered anatomy.

SUMMARY AND TAKE-HOME MESSAGES

Laparoscopic management of uterine prolapse is based on the tension-free principle, using mesh to create a new supportive ligament via either sacrohysteropexy or pectopexy.
Procedure selection is key: sacrohysteropexy is standard for thin patients, while pectopexy is the preferred alternative for obese patients.
A thorough understanding of pelvic anatomy, particularly the location of the sacral promontory, Cooper's ligaments, ureters, and major vessels, is paramount for a safe procedure.
Meticulous technique, including secure fixation without tension and complete peritonealization of the mesh, is essential for a durable repair and the prevention of long-term complications.

MULTIPLE CHOICE QUESTIONS (MCQs)

What is the primary surgical principle for modern laparoscopic prolapse repair?

a) Approximation of native tissues under high tension

b) Tension-free reinforcement using a synthetic mesh

c) Extensive plication of the endopelvic fascia

d) Obliteration of the pouch of Douglas
During laparoscopic sacrohysteropexy, to which structure is the distal end of the mesh fixated?

a) Cooper's ligament

b) The pubic symphysis

c) The anterior longitudinal ligament on the sacral promontory

d) The ischial spine
Laparoscopic pectopexy is the preferred approach for uterine prolapse in which patient population?

a) Thin, nulliparous patients

b) Obese patients

c) Patients with complete procidentia

d) Postmenopausal patients with severe vaginal atrophy
To safely expose Cooper's ligament during pectopexy, dissection should be performed:

a) Medial to the medial umbilical ligament

b) Directly through the bladder wall

c) Lateral to the medial umbilical ligament, reflecting it medially

d) Posterior to the uterus
What is the main purpose of complete peritoneal closure over the mesh (peritonealization)?

a) To reduce postoperative pain

b) To prevent bowel adhesion and internal herniation

c) To improve uterine blood supply

d) To make the mesh fixation more secure
In the "dock and mooring" analogy, what structure represents the "dock"?

a) The uterus and bladder

b) The uterosacral ligaments

c) The levator ani muscle complex

d) The bony pelvis
When dissecting the sacral promontory, the peritoneal incision should be made to the right of the midline primarily to avoid:

a) The right ureter

b) The aorta

c) The sigmoid colon and its mesentery

d) The inferior vena cava
What is the mandatory mode of delivery for a patient who becomes pregnant after a sacrohysteropexy?

a) Spontaneous vaginal delivery

b) Forceps-assisted vaginal delivery

c) Cesarean section

d) Vaginal birth after previous cesarean (VBAC)
During sacrohysteropexy, why should the mesh not be fixated to the uterine fundus?

a) It interferes with ovarian function.

b) The fundus has poor vascular supply for fibrosis.

c) It can cut through the myometrium when tension is applied or during pregnancy.

d) It increases the risk of bladder injury.
What is the recommended first-line therapy for a small, symptomatic mesh erosion into the vagina?

a) Immediate surgical excision of the entire mesh

b) Systemic antibiotic therapy

c) Topical vaginal estrogen cream

d) Watchful waiting without intervention
The reference line on dynamic MRI used to assess prolapse runs between which two structures?

a) Sacral promontory and pubic symphysis

b) Ischial spine and coccyx

c) Lower border of pubic symphysis and coccyx

d) Umbilicus and sacral promontory
Pectopexy involves fixing the arms of a T-shaped mesh to which bilateral structure?

a) Sacrospinous ligament

b) Round ligament

c) Pectineal (Cooper's) ligament

d) Arcus tendineus fasciae pelvis
The Aberdeen termination is a technique used for:

a) Fixing the mesh to the sacral promontory

b) Securing the end of a continuous suture line

c) Creating the T-shape in the pectopexy mesh

d) Dividing the round ligament
What is the approximate lateral distance of the right ureter from the midline dissection at the sacral promontory?

a) 1 cm

b) 3 cm

c) 5 cm

d) 7 cm
What is the role of the Foley catheter during these procedures?

a) To distend the bladder for better visualization

b) To keep the bladder empty to maximize surgical space and prevent injury

c) To monitor urine output only postoperatively

d) To instill contrast for imaging
What is the best technique to prevent a tacker from slipping on the sacral promontory?

a) Applying lubricant to the tacker tip

b) Stabilizing the tacker with two hands for a controlled application

c) Using a rapid, single-handed firing motion

d) Angling the tacker obliquely to the bone
If using a suture to fix mesh to the anterior longitudinal ligament, how should the needle be passed?

a) Perpendicular to the ligament fibers to pierce the bone

b) Parallel to the ligament fibers to take a superficial bite

c) The direction does not matter

d) A figure-of-eight suture is required
What is the term for uterine prolapse?

a) Cystocele

b) Enterocele

c) Rectocele

d) Hysterocele
Which of the following is an absolute contraindication for uterine-preserving prolapse surgery?

a) Obesity

b) Desire for future fertility

c) Complete procidentia (Grade 3-4 prolapse)

d) Previous abdominal surgery
What is the primary mechanism that provides long-term strength to a hysteropexy repair?

a) The initial tensile strength of the non-absorbable sutures

b) Fibrotic ingrowth into the mesh, creating a neoligament

c) Adhesion of the omentum to the mesh

d) The permanent locking of the knots

Answer Key: 1.b, 2.c, 3.b, 4.c, 5.b, 6.c, 7.c, 8.c, 9.c, 10.c, 11.c, 12.c, 13.b, 14.b, 15.b, 16.b, 17.b, 18.d, 19.c, 20.b

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MOTIVATIONAL MESSAGE FROM DR. R. K. MISHRA

"Anatomical knowledge is the map, and surgical skill is the vessel. But it is your unwavering judgment that navigates the complex seas of the human body to bring your patient safely to the shores of healing."

May you navigate every procedure with wisdom, precision, and a profound commitment to the trust your patients place in you. My best wishes are with you all.