Safety and efficacy of the novel subfascial with umbilicus detachment technique for intrathecal baclofen therapy in pediatric patients with cerebral palsy and low body mass index

Purpose: Intrathecal baclofen (ITB) therapy is a key intervention for managing severe spasticity in pediatric cerebral palsy (CP) patients. However, standard surgical techniques for ITB pump placement pose challenges in low body mass index (BMI) patients, who have limited soft tissue coverage, increasing the risk of complications such as infections and skin erosions. This study compares three techniques—subcutaneous (SC), subfascial (SF), and a novel subfascial with umbilicus detachment (SFUD) approach—specifically aimed at reducing these risks and improving surgical outcomes in this vulnerable population. Methods: Retrospective cohort study on 54 pediatric CP patients (BMI ≤ 18.5 kg/m2) who underwent initial ITB implantation from January 2004 to July 2018. Patients were divided into SC, SF, and SFUD groups, and outcomes such as surgical time, blood loss, length of hospital stay (LOS), complications, and pump explants were analyzed. Results: The SFUD group had the highest successful implant rate (93.7%), compared to 79.2% for SF and 57.1% for SC (p < 0.05). SFUD also showed the lowest complication rates, with minimal infections and no skin erosions or pump removals. The SC group experienced the highest complications, including infections and skin erosions. Mean LOS was significantly shorter in the SFUD group. Conclusion: The SFUD technique provides a safe and effective alternative for ITB pump implantation in CP patients with low BMI, reducing complications and improving implant stability. Further studies are warranted to confirm these findings and support broader clinical adoption.