Related Experiment Video
Updated: Jun 17, 2026

04:01
The Modified Single-working Portal Technique Using Lasso-loop Stitch with Needle for Arthroscopic Subscapularis Repair
Published on: August 8, 2025
The subscapularis: anatomy, injury, and imaging
Yoav Morag1, David A Jamadar, Bruce Miller
1Department of Radiology, University of Michigan, 1500 E. Medical Center Drive, Ann Arbor, MI 48109-0302, USA. yoavm@umich.edu
Skeletal Radiology
|December 25, 2009
Summary
Subscapularis injuries, the largest rotator cuff muscle, present unique diagnostic challenges. Understanding its anatomy and injury patterns is crucial for accurate diagnosis and effective treatment.
Area of Science:
- Orthopedics
- Radiology
- Sports Medicine
Background:
- The subscapularis muscle is key to glenohumeral movement and stability.
- Subscapularis injuries have distinct implications due to unique anatomy and function.
- Clinical diagnosis and surgical assessment of subscapularis integrity can be challenging.
Purpose of the Study:
- To highlight the diagnostic difficulties associated with subscapularis injuries.
- To emphasize the critical role of diagnostic imaging in evaluating subscapularis tears.
- To inform radiologists about subscapularis anatomy, injury variations, and prognostic factors.
Main Methods:
- Review of anatomical and clinical literature on subscapularis injuries.
- Analysis of diagnostic imaging modalities for subscapularis assessment.
- Correlation of imaging findings with clinical implications and treatment outcomes.
Main Results:
- Subscapularis injuries require specialized diagnostic approaches.
- Imaging modalities are essential for detecting the extent and nature of subscapularis pathology.
- Radiologists' awareness of specific anatomical features aids in accurate diagnosis.
Conclusions:
- Accurate diagnosis of subscapularis injuries relies heavily on understanding its unique anatomy.
- Diagnostic imaging is indispensable for evaluating subscapularis muscle and tendon injuries.
- Knowledge of injury variations and implications guides appropriate patient management and prognosis.
Related Concept Videos
Muscles that Move the Arm
Nine muscles are involved in arm movements. Two of these, the pectoralis major and latissimus dorsi, originate from the axial skeleton and are called axial muscles. The other seven originate from the scapula and are called the scapular muscles.
The pectoralis major has two origins. Its clavicular head originates on the medial half of the clavicle. In contrast, the sternocostal head originates on the costal cartilages of ribs 1-6, the sternum, and the aponeurosis of the external oblique of the...
The pectoralis major has two origins. Its clavicular head originates on the medial half of the clavicle. In contrast, the sternocostal head originates on the costal cartilages of ribs 1-6, the sternum, and the aponeurosis of the external oblique of the...
Muscles of the Shoulder
The muscles surrounding the shoulder girdle, including the clavicle and scapula, primarily stabilize the scapula. This stable base allows other muscles to move the humerus effectively. Scapular movements often mirror those of the humerus and extend its range of motion. For instance, raising the arm above the head would not be feasible without simultaneous upward rotation of the scapula.
Anterior Thoracic Muscles
The anterior thoracic muscles include the serratus anterior, subclavius, and...
Anterior Thoracic Muscles
The anterior thoracic muscles include the serratus anterior, subclavius, and...
Ultrasonography
Ultrasonography is an imaging technique that uses high-frequency sound waves to visualize the body's internal structures. It is a non-invasive and safe procedure that does not involve the use of ionizing radiation, making it widely used in various medical fields. Ultrasonography is used to study heart function, blood flow in the neck or extremities, certain conditions such as gallbladder disease, and fetal growth and development.
During an ultrasonography procedure, a handheld device called a...
During an ultrasonography procedure, a handheld device called a...
