Purpose: The induced membrane technique (IMT) is a two-stage procedure dedicated to reconstruction of bone defects of the limbs. The objective of this report was to evaluate employment of the IMT for the treatment of open tibia fractures managed in a military trauma center treating both wartime and peacetime injuries.
Methods: A retrospective study was performed among the patients treated via IMT for tibial bone defects related to open fractures between 2009 and 2018. The outcomes recorded included bone union, residual infection, amputation and lower limb function.
Results: During this period, 15 patients with a mean age of 39 years were included for the treatment of Gustilo II (2 cases) or Gustilo IIIB (13 cases) injuries. A mean number of 2.9 debridements were required before stage 1. Flap coverage was associated in 14 cases. The mean interval between stages was 22 weeks. Five patients were re-operated on after stage 1 due to persistent infection. The mean follow-up was 33 months. Bone union was achieved in 13 of the 15 cases (87%) at a mean time of 10.1 months. However, seven additional bone healing procedures were required, including six inter-tibiofibular grafting. Only one late septic recurrence was found. Most patients returned to work in sedentary jobs.
Conclusions: This series is the first to report IMT use in a military setting. The prior eradication of infection constitutes a major challenge in tibial bone defects, especially in high-energy, multi-tissue injuries. An inter-tibiofibular bone reconstruction approach is required when external fixation is chosen.
Keywords: Bone defect; Induced membrane technique; Infection; Masquelet technique; Military; Tibia.