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Multiple factors can elevate DOUN risk after elbow contracture release
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Factors influencing a higher risk of delayed-onset ulnar neuritis included heterotopic ossification, preoperative neurological symptoms and preoperative arc of motion, according to study findings.
Researchers retrospectively reviewed data for 235 patients who underwent arthroscopic release of elbow contracture to evaluate the presence and risk factors for delayed-onset ulnar neuritis (DOUN). For this study, the researchers defined DOUN as ulnar neuritis or neuropathy or worsening of pre-existing ulnar nerve symptoms that developed in patients with normal neurological exam data following surgery. Any patients who had developed DOUN were categorized into three groups based on the speed at which DOUN progressed.
Overall, 26 patients developed DOUN. Of those patients, 15 were observed with rapidly progressive DOUN, three with slowly progressive DOUN and eight with nonprogressive DOUN. Upon multivariate logistic regression analysis, the only significant risk factors observed for DOUN were diagnosis of heterotopic ossification, preoperative neurological symptoms and preoperative arc of motion, according to the researchers.
Of the 26 patients who developed DOUN, nine showed preoperative neurological symptoms.
Disclosure: The authors have no relevant financial disclosures.
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