Type III open tibia fractures in low-resources setting. Part 3: achievement of bone union and treatment of segmental bone defects

Management of Gustilo type IIIB open tibial shaft fractures with limited resources: experience from an African trauma center

PURPOSE

We sought to evaluate the management of Gustilo type IIIB open tibia diaphyseal fractures in an African trauma center with respect to soft tissue defect management and bone union achievement. Functional outcome assessment was the secondary objective.

METHODS

A retrospective review was conducted including patients treated for open tibia fractures requiring flap coverage between 2007 and 2011. As plastic surgeons were lacking in availability, all procedures were performed by orthopedic surgeons trained in completing nonmicrosurgical flap transfers.

RESULTS

Twenty-seven patients with a mean age of 36 years were included. Although the mean time to debridement was 11 h, early infection occurred in 16 (59%) patients. The mean time to flap coverage was 27 days. Among the 29 primary local flap transfers performed, only 4 failed. Secondary amputation was required in one patient after flap failure. Bone reconstruction procedures were required in nine patients and were performed after a mean period of 97 days. At the mean follow-up time of 13 months, 23 (88%) of the 26 remaining fractures had united. There were three septic nonunions and two cases of chronic osteomyelitis. Functional result was negatively influenced by the soft tissue defect area and low-quality flap coverage.

CONCLUSIONS

To our knowledge, this is the first series reporting flap reconstructions performed by orthopedic surgeons for Gustilo type IIIB tibia fractures in an African hospital. Local pedicled flap transfers permitted the achievement of soft tissue coverage and bone union in most cases. Subsequent bone grafting was required in one-third of the cases.