Absorbable subcuticular staples versus suture for caesarean section closure: a randomised clinical trial

To compare outcomes of efficiency, safety, patient, and surgeon satisfaction between absorbable subcuticular staples and subcuticular suture for caesarean section skin closure.

A prospective, randomised, non-blinded, parallel-group trial.

Mayo Clinic Family Birth Center in Rochester, MN, USA.

At least 18 years old and 24 weeks' gestation, undergoing caesarean section. Exclusion criteria were body mass index >50, chorioamnionitis, intrauterine fetal death, and multifetal gestation.

Patients were stratified by prior caesarean section, body mass index, and surgeon level and randomised to absorbable subcuticular staples or subcuticular suture. Electronic medical records and surveys were used.

Primary outcomes were total operating time, from incision start to close. Secondary outcomes included subcuticular skin closure time, patient and surgeon satisfaction, percutaneous injuries, pain (analgesic use), cosmesis, and wound complications.

Of 220 randomised patients, 206 were included in the final analysis (103 per group). Baseline characteristics were similar. The primary outcome of total operative time was not significantly different between groups [54.0 (44.9-63.6) versus 58.0 (50.4-68.2) minutes, P = 0.053]. The subcuticular staple group had shorter subcuticular skin closure time [median 2.6 (1.8-4.0) versus 8.5 (6.2-10.5) minutes, P < 0.001]. There were no differences in analgesic use, wound complications, cosmesis or patient satisfaction. One needlestick injury occurred with suture. Surgeons were more likely to recommend (97% versus 85%, P = 0.004) and use (98% versus 82%, P < 0.001) absorbable subcuticular staples.

For caesarean section skin closure, absorbable subcuticular staples did not result in significantly different total operative times compared with sutures. Analgesic use, wound complications, and cosmesis were comparable. Patient and surgeon satisfaction were high with both methods.

Absorbable subcuticular staples associated with a similar total operative time compared with suture.