Correlation Between Imaging Quantitative Parameters Of Shoulder Joint And Degenerative Rotator Cuff Tears

Objective:To analyze the correlation between imaging quantitative parameters of shoulder joint and degenerative rotator cuff tear.Methods:From May 2021 to July 2022,82 patients with degenerative rotator cuff tear diagnosed by MRI or shoulder arthroscopy in the Affiliated Hospital of Chengde Medical College were retrospectively analyzed,and 53 patients without rotator cuff tear were selected as control.All patients underwent MRI examination of shoulder joint,and acromion index(AI),critical shoulder angle(CSA),glenoid inclination(GI),lateral acromial angle(LAA)and acromion-greater tuberosity impingement index(ATI)were measured.The parameters of the two groups were compared,and the correlation between the parameters was analyzed,as well as the diagnostic efficacy of each parameter for degenerative rotator cuff tear was compared by using the receiver operating characteristic curve.Results:The AI(0.70±0.10),CSA(38.07°±3.82°),GI(13.62°±6.58°)and ATI(0.87±0.06)of the case group were higher than the AI(0.65±0.08),CSA(34.57°±3.79°),GI(10.63°±6.19°)and ATI(0.83±0.08)of the control group,while the LAA of the case group(72.06°±5.12°)was lower than the control group(75.71°±4.56°),the difference was statistically significant(P<0.05).In the correlation analysis,there was a positive correlation among the parameters of AI,CSA,GI and ATI,in which the correlation between AI and CSA was the highest(r=0.754,P<0.001),while LAA was negatively correlated with other parameters.In the analysis of receiver operating characteristic curve,the areas under the curve of AI,CSA,GI,LAA and ATI were 0.648,0.742,0.639,0.697 and 0.660 respectively,among which CSA had the best diagnostic efficacy,with the sensitivity and specificity of 0.732 and 0.679 respectively.Conclusions:Imaging quantitative parameters of shoulder joint(AI,CSA,GI,LAA and ATI)can be used as good indicators for predicting degenerative rotator cuff tear.