Related Experiment Videos
Pseudodislocation of the Shoulder After a Pathologic Scapula Fracture: A Rare Case Report
Alexandros Topaloglou1, Georgios Antonoglou2,1, Konstantinos Asteriadis1
1Department of Orthopedic Surgery and Traumatology - Unit for Sport Injuries, General Hospital of Thessaloniki "Agios Pavlos", Thessaloniki, GRC.
Cureus
|July 6, 2026
Summary
Shoulder pseudodislocation, a rare condition, involves humeral head malposition without joint separation. Differentiating it from true dislocation is crucial, especially in patients with bone pathology, to prevent harmful interventions.
Area of Science:
- Orthopedic Surgery
- Radiology
- Oncology
Background:
- Shoulder pseudodislocation is a rare condition with radiographic malposition of the humeral head relative to the glenoid.
- It is characterized by preserved joint articulation despite apparent malalignment.
Related Concept Videos
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...
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...