TABLE I.

Complication Classification

Category	Definition	Examples
I	Minimal intervention required; treatment goal still achieved	Pin-track infection and mild joint contractures
II	Substantial change in treatment plan; treatment goal still achieved	Unplanned return to operating room, delayed consolidation requiring additional intervention, and device problem needing revision
IIIA	Failure to achieve treatment goal; no new pathology or permanent sequelae	Premature consolidation with aborted lengthening, inability to tolerate lengthening, and fracture at fixation site or regenerate bone
IIIB	Failure to achieve treatment goal and/or new pathology or permanent sequelae developed	Joint subluxation, regenerate fracture with deformity, and deep infection