4.3 Article

Three-dimensional CAD/CAM reconstruction of the iliac bone following DCIA composite flap harvest

Journal

Publisher

CHURCHILL LIVINGSTONE
DOI: 10.1016/j.ijom.2020.05.014

Keywords

bone flap; deep circumflex iliac artery; bone; computer-aided design; computer-aided manufacturing; prosthetic device; donor site morbidity

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This article presents a new technique for restoring iliac bone integrity using a customized titanium device designed by CAD/CAM in patients undergoing DCIA flap harvest. Post-surgery follow-up showed minimal complications and satisfactory long-term outcomes at the donor site, with all patients expressing satisfaction with the aesthetic result. The study recommends the use of this device in patients at high risk of herniation. Further research is needed to confirm the long-term stability of the device.
This article reports a new technique to restore iliac bone integrity with a customized titanium device designed by CAD/CAM, in patients undergoing deep circumflex iliac artery (DCIA) composite flap harvest. Eight consecutive patients who underwent the repair of major head and neck defects with DCIA flaps were enrolled retrospectively. Computed tomography scans of the pelvis were obtained preoperatively. Starting from DICOM data, each personalized device was designed using modelling software and was finally made by additive manufacturing using a laser sintering machine. After surgery, the patients were followed up at 3-month intervals to evaluate the incidence of complications and the long-term outcome at the donor site. A subcutaneous seroma developed in one patient and an inguinal skin burn occurred in another. At a median follow-up of 12 months, the patients did not report pain, or any gait or sensory disturbance at the donor site. There was no occurrence of bulging, herniation, or instability or inflammation near the device for the entire follow-up duration. All patients were satisfied with the aesthetic result. In conclusion, reconstruction of the iliac bone with a customized device is safe and well tolerated. We recommend use of this device in patients deemed at high risk of herniation. Further studies are needed to confirm the stability of the device in the long term.

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