Surgeons use internal devices to reconstruct large bone defects in military patients

Dr. Austin Fragomen of the Hospital for Special Surgery in the United States presented new limb reconstruction techniques at the International Congress for Military Medicine in Abu Dhabi.

He shared methods that allow doctors to rebuild severe bone damage, such as those caused by battlefield injuries, instead of performing amputations. Fragomen described bone transport as a primary method for treating large defects that conventional grafting cannot fix.

This process involves cutting a piece of healthy bone and moving it slowly across a gap. As the bone moves, new tissue forms behind it to fill the missing space. While surgeons previously relied on external frames to guide this movement, Fragomen explained that newer internal devices now allow for more precise control and less time spent in external supports.

The doctor shared specific examples of these techniques, including a case where he used an internal nail to move a bone segment across a 15cm defect in a soldier's knee. He also detailed how surgeons can manage infected wounds by temporarily shortening a bone to reduce skin tension before gradually lengthening it again. These combined strategies help preserve limbs that might otherwise require amputation due to extensive bone loss or soft-tissue damage.