Coracohumeral index and coracoglenoid inclination as predictors for different types of degenerative subscapularis tendon tears

International Orthopaedics
Hao ZhangZhong-Li Li

Abstract

To define and compare the coracohumeral index (CHI) and coracoglenoid inclination (CGI) in patients with different types of the subscapularis tendon tears. Patients were divided into two groups: articular-sided lesion group (group A) and bursal-sided lesion group (group B). All the patients were examined using a 3.0-T magnetic resonance imaging scanner pre-operatively. The morphometric parameters of the coracoids, including the coracohumeral distance (CHD), CHI, and CGI, were measured on MRI. There were 165 (70.2%) and 70 (29.8%) patients in groups A and B, respectively. There was no significant difference in the average CHD (7.98 ± 1.7 mm vs 7.82 ± 2.1 mm, respectively) and CGI (50.5° ± 16.6° vs 44.9° ± 17.4°, respectively; P = 0.427) between the two groups. Conversely, there was a significant difference in the CHI between them (0.32 ± 0.08 vs 0.57 ± 0.11, respectively; P = 0.0001). According to the CHI and CGI, the coracoid process was divided into three types, and nearly half of the patients (46.8%) had standard coracoids with a hook tip, which are vulnerable to injury on the articular side. However, with overlapping coracoids and hook tips, the patients (16.2%) tended to experience injury on the bursal side. There was a sig...Continue Reading

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Citations

Jun 21, 2020·Journal of Shoulder and Elbow Surgery·Jonathan D HodaxBrett D Owens
Feb 15, 2020·Journal of Shoulder and Elbow Surgery·Viktor C TollemarLewis L Shi
May 7, 2021·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Sizheng ZhuHong Chen
Jul 15, 2021·The Journal of Manual & Manipulative Therapy·Fernanda B CharryJuan Guerrero-Henriquez

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