Evaluation of the efficacy of ipsilateral fibular transfer for reconstruction of large tibial defects in children: a retrospective study

Table 2 Overview of the modified RUST [17]

Score per cortex*	Radiographic criteria
Score per cortex*	Callus	Fracture line
1	Absent	Visible	Eccentric rod location precludes visualization of cortex
2	Present	Visible
3	Present	Invisible	Faint lucencies present in dysplastic bone, not representative of fracture line

*Individual cortical scores (anterior, posterior, medial, and lateral) were added to provide a RUST value for a set of radiographs, ranging from 4 (definitely not healed) to 12 (definitely healed). If at least two cortices scored 3, then radiographic healing was considered to have been achieved

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