This article is more than 5 years old. Information may no longer be current.
Consistent ratio of glenoid length, width found using MRI
Click Here to Manage Email Alerts
Use of MRI resulted in a consistent ratio of glenoid length to width independent of patient age and gender, according to study results.
Researchers measured and recorded the length and width of 90 glenoids in 84 patients at the widest dimension using MRI. The ratio of length to width and the ratio of the length of the superior pole at the widest point to the total length were calculated, as well as intraclass correlation coefficients, Spearman and Pearson correlations, regression analysis with cross-validation and coefficients of variation.
Study results showed a mean glenoid length of 37.5 mm, a mean width of 24.4 mm, a mean ratio of length to width of 1.55 and a mean ratio of the distance from the superior pole to the widest point to the total glenoid length of 0.64.
The researchers found the calculated ratios to be less variable than the absolute length and width. A 95% prediction band width of 4.48 mm was found in cross-validation of length for width, with an average absolute error of prediction of 1.46 mm, according to the researchers. This result was equally specific when separated by gender.
Overall, study results showed the width was equal to 0.65 times the length.
Disclosure: See the study for a full list of all authors’ relevant financial disclosures.
Click Here to Manage Email Alerts