What should be done for a patient with visible absorbable sutures one year after a cesarean section?

Remove the Retained Sutures

Visible absorbable sutures one year after cesarean section should be surgically removed, as they have clearly failed to dissolve appropriately and now represent a foreign body that can cause inflammation, infection, and other complications.

Why Removal is Necessary

Absorbable sutures (typically vicryl or chromic catgut) are designed to undergo hydrolysis and complete absorption within weeks to months. When sutures remain visible and intact at one year, they have undergone inappropriate degradation and now function as a persistent foreign body 1.

Documented Complications of Retained Sutures

• Chronic inflammation: The retained material triggers ongoing inflammatory responses
• Abnormal bleeding: Intrauterine retained sutures have been documented causing abnormal uterine bleeding 1
• Infection risk: Foreign body serves as a nidus for bacterial colonization
• Fertility concerns: In cases of intrauterine retention, sutures can interfere with sperm transport and implantation 1
• Intestinal obstruction risk: When sutures create gaps or adhesions, particularly with non-absorbable materials 2

Clinical Approach

Initial Assessment

Determine the exact location of the visible sutures:

• Skin/subcutaneous level: Most common and straightforward
• Deeper fascial layers: May require more extensive evaluation
• Intrauterine: Requires imaging and specialized removal

Management Algorithm

For superficial (skin/subcutaneous) sutures:

1. Simple office-based removal under local anesthesia
2. Clip and extract the visible suture material
3. Ensure no signs of active infection before removal
4. Prescribe prophylactic antibiotics only if signs of inflammation present

For suspected deeper retention:

1. Obtain imaging (ultrasound or MRI) to localize suture material 2
2. Refer to gynecologic surgery for removal
3. Hysteroscopy is gold standard for intrauterine assessment 1
4. Laparoscopy may be needed for intra-abdominal or uterine wall sutures 2

Important Caveats

Do not adopt a "wait and see" approach at this stage. A case report documented retained intrauterine sutures persisting for 6 years, causing ongoing complications 1. Another recent case showed retained non-absorbable sutures (used in error) creating dangerous gaps between the suture and uterus after one year 2.

Patient-specific risk factors that may have contributed to failed absorption include:

• Underlying inflammatory conditions (Hepatitis C, chronic infections) 3
• Metabolic disorders affecting wound healing
• Local infection or hematoma formation during initial healing
• Manufacturing defects in suture material chemistry 1

Documentation

After removal, document:

• Location and extent of retained material
• Any associated inflammation or infection
• Culture results if infection suspected
• Patient counseling about future surgical considerations

The key principle is that sutures visible at one year have definitively failed their intended purpose and should be treated as retained foreign bodies requiring removal 1, 4.