$non displaced radial head fracture$

$non displaced radial head fracture$

The kappa measure of agreement was utilized to evaluate interrater agreement. The sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) of cortical irregularity were calculated for the assessment of radial head fractures. After the radial head was blackened, the transition zone of the radial neck and head was assessed by two attending orthopedic surgeons for presence of a cortical irregularity. Group A was formed out of 42 patients with non-displaced radial head fractures, group B out of 42 patients without a history of previous elbow trauma, whose medical history also contained radiographic images. Secondarily, we tested the null hypothesis that the lack of cortical irregularities is sufficient to exclude a fracture of the radial head.Ĩ4 patients with sets of anteroposterior and lateral radiographs of the elbow were identified from the database of a level 1 trauma center and divided into 2 groups. Based on the typical injury mechanism of a radial head fracture, causing the head to hit the capitulum and leading to a depression of the anterolateral border of the radial head, we hypothesized that even slight cortical irregularities in the transition zone of the radial neck and head result from that depression and may be a reliable radiographic sign of an underlying radial head fracture. Exclusion or detection of non-displaced radial head fractures can be difficult in radiographs, because they might lack conclusive radiographic signs, such as fracture lines or distracted articular fragments.

$non displaced radial head fracture$

Non displaced radial head fracture