Long-Term Outcomes of Pediatric Cranial Reconstruction Using Resorbable Plating Systems for the Treatment of Craniosynostosis

Abstract

Background: Resorbable plating in cranial reconstruction for craniosynostosis has fewer reported complications than rigid hardware. Few long-term outcome studies exist for pediatric patients treated with this technology for cranial vault reconstruction.

Methods: A retrospective review was performed on pediatric patients undergoing cranial vault reconstruction for craniosynostosis by 3 surgeons over a 15-year period. MacroPore (Cytori Therapeutics, San Diego, CA) or Lactosorb (Walter Lorenz Surgical Inc, Jacksonville, FL), composed of polyglycolic and polylactic acids, was used for resorbable plate fixation.

Results: A total of 203 patients underwent resorbable plate fixation with a mean age of 15.8 months at surgery. Mean length of follow-up was 6.4 years. Lactosorb plating system was used in the majority of patients (74%) compared with MacroPore plating system (26%). Overall, unplanned reoperations were required in 5.4% of patients. Palpable hardware was noticed in 10.3% of patients. Only 3 patients (1.5%) developed exposure of the resorbable hardware requiring removal, all MacroPore plates. Four patients (2%) developed surgical site infection and 3 patients (1.5%) developed a seroma. There were 15.8% requiring later surgical revision with cranial vault expansion or cranioplasty with grafts for residual cranial defects. The majority of revisional reoperations (81%) occurred in the first half of the study before the addition of Allogenix.

Conclusions: Resorbable plating systems, specifically Lactosorb, for cranial reconstruction are a safe, reproducible, inexpensive modality with very low complication rates. They have 3-dimensional stability, rigid fixation without causing growth restriction, and lower likelihood of need for removal.