Extreme bone lengthening using distraction osteogenesis after trauma: a case report

We are reporting herein the result of a 22 cm tibial lengthening after using an acute shortening technique with acute temporary angulation for salvage of a posttraumatic lower limb injury. The patient was referred to our center 2 weeks after a Gustilo IIIB open complex injury to the lower limb that included bone and soft-tissue loss. After surgical debridement, the tibial gap was 22 cm and the soft-tissue defect on the anterior aspect of the calf measured 12 x 20 cm. An acute shortening using a 50 degrees angulation (apex posteriorly) of the tibia in an Ilizarov frame was done after a full assessment of all reconstructive surgical options. After complete wound healing, a progressive correction of the angulation was done. Bilevel tibial distraction at a rate of 1.75 mm/day restored the original lower limb length. The 22 cm tibial elongation included 17 cm proximal lengthening and 5 cm distal lengthening. The fractures consolidated after 371 days, all wounds had closed, and no signs of osteomyelitis were present. Good aesthetic and functional results were obtained. The patient had no leg discrepancy compared to his normal limb and he returned to his previous occupation as a garage mechanic and to his favorite sport, boxing. To our knowledge, this is the first report in the English literature of tibial lengthening of this magnitude following acute trauma.