Potential Complications of Mesh at the Vaginal Apex
When mesh is used at the vaginal apex (such as in sacrocolpopexy for apical prolapse), the primary complications include mesh exposure/erosion (occurring in approximately 4-5% of cases), mesh contraction or shrinkage, pelvic or groin pain, infection, voiding dysfunction, and dyspareunia due to improper positioning or migration of the synthetic material. 1
Specific Complication Rates and Types
Mesh Exposure and Erosion
- Mesh exposure through vaginal mucosa: 4-5% overall risk 1, 2
- Sacrocolpopexy mesh (apex to sacral promontory): Lower exposure rates compared to anterior/posterior vaginal wall mesh
- Risk increases with concomitant hysterectomy (odds ratio 27.02) 3
- Smaller erosions (<0.5 cm) can often be managed conservatively with topical estrogen 3, 4
- Larger erosions typically require surgical revision 3
Pain and Functional Complications
- Pelvic or groin pain: Common presenting symptom in 49-68% of women seeking treatment for mesh complications 4
- Dyspareunia: 4.3% rate reported 2
- Pain from excessive scarring or improper mesh positioning 1
- Devascularization and denervation leading to persistent pain 1
Voiding Dysfunction
- Urinary retention or voiding difficulties from mesh positioning 1
- De novo urinary incontinence: 5.5% in recent series 5
- Chronic urinary tract infections 1
Infection and Mesh Removal
- Mesh infection requiring explantation in severe cases 6
- Reoperation rates: 4-5% within 1 year for mesh-related complications 7, 8
- Complete mesh removal may be necessary in 2.2-4% of cases 2, 5
Risk Factors That Increase Complication Rates
Patient-Related Factors
- Hypertension: Odds ratio 5.95 for mesh erosion 3
- Concomitant hysterectomy: Odds ratio 27.02 for mesh erosion 3
- Poor wound healing conditions (radiation therapy, significant scarring, poor tissue quality) 9
- Diabetes: Higher risk for mesh erosion 9
- Steroid or immunosuppressive drug use 6
Surgical Factors
- Surgeon volume matters significantly: Very high-volume surgeons (≥14 procedures/year) have lower complication rates (3.0% vs 4.8%) 10
- Concomitant procedures increase risk
- Longer operative times associated with greater morbidity 11
Important Clinical Caveats
Amount of Mesh Matters
There is a dose-response relationship between the amount of mesh used and subsequent complications 8:
- Vaginal mesh plus sling (most mesh): 2.72% erosion rate
- Vaginal mesh alone: Intermediate risk
- Sling alone (least mesh): 1.57% erosion rate
Age Considerations
For women aged 60-70 with moderate comorbidities:
- Age ≥70 is NOT associated with increased perioperative adverse events in sacrocolpopexy 12
- Older women actually had 73% lower odds of surgical site infections 12
- Complication rates remain low in this age group when properly selected 12
Mesh Type and Position
- Sacrocolpopexy mesh (apex to sacrum) has better visualization on imaging and lower complication rates than anterior/posterior vaginal wall mesh 1
- Synthetic mesh should be avoided in contaminated fields or with concurrent urethral/bladder injuries 9
Long-Term Outcomes
Recent data shows:
- Subjective cure rates: 95.7% at median 52 months follow-up 2
- Quality of life improvements: Significant and sustained 2, 5
- Patient satisfaction: 93-95% would choose the procedure again 5
- No apical recurrences observed at 12 months in recent series 5
Management of Complications When They Occur
For mesh exposure:
- Asymptomatic exposure <1 cm: Topical estrogen first-line (excellent success) 4
- Larger exposures: Surgical revision required 3
- Recurrent erosions occur in 17% after primary revision but heal with repeat surgery 3
For pain:
- Isolated pain without anatomical abnormalities has poorer surgical outcomes 4
- Requires holistic approach with specialist pain management 4
- Complete mesh removal may be necessary but should be individualized
The FDA has issued warnings regarding mesh complications, noting over 1,000 reported complications including vaginal and urinary erosion, as well as bowel and vascular injuries 13. However, when performed by experienced surgeons in appropriately selected patients, mesh sacrocolpopexy remains a viable option with acceptable complication rates, particularly for apical prolapse repair.