Clinical Evaluation of an Unsintered Hydroxyapatite/Poly-L-Lactide Osteoconductive Composite Device for the Internal Fixation of Maxillofacial Fractures

J Craniofac Surg. 2016 Sep;27(6):1391-7. doi: 10.1097/SCS.0000000000002828.

Abstract

Introduction: OSTEOTRANS MX (Takiron Co, Ltd, Osaka, Japan) is a resorbable osteosynthetic material composed of an unsintered hydroxyapatite/poly-L-lactide composite, and its osteoconductive capacity has been documented. The authors here report their clinical experience using OSTEOTRANS MX.

Methods: The authors treated 35 patients (19 men, 16 women; age, 14-88 years; mean ± standard deviation, 38.4 ± 19.9 years) with maxillofacial fractures. The authors used standard surgery to stabilize fractures in all patients, fitting resorbable plates (thickness, 1.0 or 1.4 mm) and screws (diameter, 2 mm) according to Arbeitsgemeinschaft für Osteosynthesefragen/Association (AO) for the Study of Internal Fixation guidelines.

Results: All patients eventually achieved satisfactory healing with favorable restoration of form and function without foreign body reaction. Complications occurred in 3 patients-plate exposure in 2 and discomfort in 1. However, fracture sites healed in all patients. Scanning electron microscopy revealed that the devices bonded directly to the bone without interposition of nonmineralized tissue.

Conclusion: OSTEOTRANS MX is a useful material with few complications. Its osteoconductive bioactivity is advantageous for the early functional improvement of maxillofacial fractures.

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Aged, 80 and over
  • Durapatite* / adverse effects
  • Durapatite* / therapeutic use
  • Female
  • Fracture Fixation, Internal* / instrumentation
  • Fracture Fixation, Internal* / methods
  • Humans
  • Male
  • Maxillary Fractures / surgery*
  • Middle Aged
  • Polyesters* / adverse effects
  • Polyesters* / therapeutic use
  • Postoperative Complications
  • Young Adult

Substances

  • Polyesters
  • hydroxyapatite-polylactide
  • Durapatite