ArticleBeijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences2025
[Association of increased greater tubercle angle and critical shoulder angle with rotator cuff tears].
Article in Beijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectiveThe greater tuberosity angle (GTA) and critical shoulder angle (CSA) are commonly referred to as radiographic markers which were used to described morphology of the greater tuberosity and acromion respectively. At present, most international studies focus on the correlation between the above two parameters and rotator cuff tears (RCTs), and their diagnostic value and risk assessment. This study attempts to find out the trend of GTA and CSA changes and risk threshold of RCTs, as well as the protective factors and risk factors.
methodsIn this study, 130 individuals from May 2019 to December 2020 were recruited. According to Southern California Orthopedic Institute (SCOI) classification, the individuals were divided into four groups retrospectively: Group A, negative control group; Group B, partial tears (articular side); Group C, partial tears (bursal side); Group D, full-thickness tears. GTA and CSA were measured respectively on true anteroposterior position X-ray of shoulder with arm in neutral rotation and performed by the same trained technician team in single-blind. The correlations between RCTs and relevant factors were analyzed.
resultsAccording to the area under the receiver operating characteristic curve (AUC), GTA and CSA of RCTs (Groups B, C and D) were 0.736 and 0.673 with 95% confidence interval (
conclusionLarger GTA (>70.5°) and CSA (>39.5°) would be highly predictive in diagnosing RCTs without linear correlation, and GTA has a higher diagnostic value in contrast. Subacromial impingement and shoulder degeneration occurred before RCTs. Patients with age >56.5 years and height < 1.58 m were more likely to develop disease of full-thickness RCTs and no statistic differences in weight and BMI. Gender, dominant shoulder and smoking were neither risk factors nor protective factors.
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40754913PMC12330910What Socratic holds
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