BIOLAP study
Biological versus synthetic mesh in laparoscopic hernia repair - a randomised, multicentre, prospective, self-controlled clinical trial
Project overview
The aim of this study is to show that the use of biological mesh material for the laparoscopic treatment of inguinal hernias (TEP or TAPP) results in significantly less pain postoperatively than the use of synthetic mesh material, without an increased recurrence rate.
The repair of inguinal hernias is one of the most common surgical procedures, with more than 20 million being treated each year. However, hernia recurrence is still a clinical problem and the occurrence of chronic pain after hernia repair is also problematic. Nowadays, it is common practice to use synthetic mesh material for the plastic. However, there is increasing evidence that biological mesh material offers advantages in terms of the occurrence of chronic pain due to the different postoperative remodelling without the disadvantages of a lifelong artificial implant.
BIOLAP is a blinded study with a self-controlled design, which is possible in bilateral diseases such as the bilateral primary inguinal hernias investigated here: Since each patient is implanted with the biological mesh on one side and the synthetic mesh on the other, all participants represent their own control. External factors such as the surgeon's experience or concomitant diseases therefore have no influence on the outcome. The primary endpoints of the study are pain reduction after six months and the recurrence rate after two years.
Further information
Duration: 982 hernia operations were performed in 21 German centres from August 2017 to February 2021. The evaluation will take place from spring 2023.
Funding: The Biolap study is a clinical study initiated by the chair in accordance with §23b MPG, which has been funded by the DFG with around 1.5 million euros since 2016 (HE 1568/56-1, HE 1568/5-2). The study is registered in the German Register of Clinical Studies under DRKS00010178.
Responsible: Chair of Surgery I
Project management
Prof. Dr.
Markus Heiss
Chair holder
Faculty of Health (School of Medicine) | Chair of Surgery I
Ostmerheimer Straße 200
51109 Köln