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CT helps examine nonunions in LTO healing
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Although lesser tuberosity osteotomy healing is best assessed on radiographs, CT can be a helpful additional examination if nondisplaced or displaced nonunions are suspected, according to study results.
Researchers reviewed radiographs and available CT images of 362 patients who underwent a total shoulder arthroplasty between 2006 and 2012. The researchers then graded the integrity of the lesser tuberosity osteotomy (LTO) site as not seen, bony union, nondisplaced nonunion and displaced nonunion. Patients’ smoking status was also assessed. Minimum follow-up was 6 months.
Study results showed the LTO site was not seen in 37 patients. The researchers found bony union in 159 patients, of whom 8.8% were smokers. Nondisplaced union was demonstrated in 16 patients, 6.3% of whom were smokers, and displaced nonunion was demonstrated in eight patients, of whom 25% were smokers.
Of the nonunions, 79.1% were found in male patients and 20.8% in female patients, according to the researchers.
Disclosure: The authors have no relevant financial disclosures.
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