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TAPP and TEP repairs show comparable safety and efficacy for bilateral inguinal herniaTwo surgical methods show similar results for inguinal hernia repair

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Key Takeaway
Note that TAPP and TEP repairs provide comparable short-term safety and efficacy for bilateral inguinal hernia.

This meta-analysis evaluates the comparative outcomes of laparoscopic transabdominal preperitoneal (TAPP) and totally extraperitoneal (TEP) repairs in patients with bilateral inguinal hernia. The analysis included 1,319 patients and assessed several clinical endpoints, including general and special complications, postoperative pain, operative time, and length of hospital stay.

The meta-analysis found no significant between-group differences (p > 0.05) for any of the primary clinical outcomes, including complications, pain, operative time, or hospital stay. While a trend toward lower recurrence was observed with TAPP, this finding was derived from retrospective non-randomized cohort data and was not supported by a corresponding randomized controlled trial subgroup.

Several limitations were noted, including the fact that the recurrence data was based on observational cohorts and the lack of long-term high-quality studies. The maximum follow-up period was 12 months. Clinicians may conclude that TAPP and TEP offer comparable short-term safety and efficacy for bilateral inguinal hernia repair, though the specific trend in recurrence for TAPP should be interpreted with caution due to the limited trial data and short follow-up period.

How this fits prior evidence

This meta-analysis addresses the choice between TAPP and TEP techniques for bilateral inguinal hernia. It confirms that both methods provide comparable short-term safety and efficacy, similar to the finding that single-port versus two-port laparoscopic repairs resulted in similar outcomes for pediatric patients. It does not address the specific findings regarding 3D laparoscopy, pediatric-specific outcomes, or machine learning applications in hernia care.

If you are facing surgery for an inguinal hernia, you might wonder which surgical technique is best for your recovery. A large review of 1,319 patients compared two common methods: TAPP and TEP. Both are types of laparoscopic surgery used to repair the hernia.

The study found that both methods performed very similarly. Patients who had the TAPP procedure did not have different levels of pain, longer hospital stays, or more complications than those who had the TEP procedure. The time spent in the operating room was also comparable between the two groups.

There was a slight trend toward fewer repeat hernias with the TAPP method. However, researchers warn that this finding comes from older, non-randomized data and was not confirmed by high-quality clinical trials. Because the follow-up period was only 12 months, more long-term data is needed to be certain about which method is better for preventing a hernia from returning.

What this means for you:
Both TAPP and TEP surgical methods offer similar safety and recovery results for repairing a double inguinal hernia.

Common questions

Are there significant differences in pain or recovery time between TAPP and TEP?

No, the study found no significant differences between the two methods. Patients who underwent TAPP surgery experienced similar levels of postoperative pain and had similar lengths of hospital stay compared to those who had TEP surgery.

Which surgery is better at preventing the hernia from coming back?

While there was a trend toward fewer recurrences with TAPP, this finding is based on older, non-randomized data. Because of the short 12-month follow-up and limited trial data, the results are not yet certain. Talk to your doctor about which option is best for you.

How many patients were included in this comparison?

The study included a total of 1,319 patients who were treated for a bilateral inguinal hernia, which is a hernia occurring on both sides of the groin.

Study Details

Study typeMeta analysis
EvidenceLevel 1
PublishedOct 2026
View Original Abstract ↓
Background and objectiveInguinal hernia is a common general-surgical disease. Laparoscopic repair is widely used for bilateral cases. The practical trade-offs between laparoscopic transabdominal preperitoneal (TAPP) and totally extraperitoneal (TEP) repair remain debated, and most existing publications focus on unilateral inguinal hernia.MethodsWe searched multiple domestic and international databases for comparative studies of TAPP versus TEP for bilateral inguinal hernia. Literature retrieval covered records from database inception to April 6, 2026. Evaluated outcomes included general complications, special complications, recurrence, postoperative pain, operative time, and length of hospital stay. Statistical analyses were performed with RevMan 5.3 and Stata 18.ResultsNine eligible studies involving 1,319 patients were included (846 patients in the TAPP group and 473 in the TEP group). Pooled data show no significant between-group differences for general complications, special complications, postoperative pain, operative time, and length of hospital stay (all P > 0.05). The overall pooled result indicated a trend toward lower short-term recurrence with TAPP, which was largely driven by retrospective non-randomized cohort data. Although the RCT subgroup yielded a borderline nominally significant result, this signal derived from very limited trial data and does not establish a genuine between-group difference in recurrence risk. Given the maximum follow-up of 12 months across eligible studies, this recurrence-related finding warrants cautious interpretation.ConclusionTAPP and TEP deliver comparable short-term safety and efficacy for bilateral inguinal hernia repair. The observed trend of lower short-term recurrence for TAPP relies heavily on observational cohort data and receives no support from RCT evidence. We cannot draw definitive conclusions about recurrence benefits. Further large-sample, long-term high-quality studies are needed.
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