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Related Concept Videos

Muscles of the Shoulder01:23

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...
Muscles that Move the Arm01:31

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...
Bones of the Upper Limb: Humerus01:19

Bones of the Upper Limb: Humerus

The upper limb consists of the arm, forearm, wrist, and hand bones. The humerus is the single bone of the upper arm region. Proximally, it has a large, spherical, smooth head that articulates with the glenoid cavity of the scapula to form the glenohumeral or shoulder joint. The margin of the head is the anatomical neck, a residual epiphyseal plate. Laterally it extends to form bony projections called the greater tubercle and the lesser tubercle. Next to the tubercles is the surgical neck, a...
Bones of the Lower Limb: Femur and Patella01:16

Bones of the Lower Limb: Femur and Patella

The femur is the body's longest and strongest bone spanning the thigh region. Its head articulates with the acetabulum of the hip bone to form the hip joint. A minor indentation on the medial side of the femoral head, called the fovea capitis, serves as the site of attachment for the ligament of the head of the femur. This weak ligament spans the femur and acetabulum and supports the hip joint. The narrowed region below the head is the neck of the femur. The inclination angle between the neck...

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Related Experiment Video

Updated: Jun 26, 2026

Measuring 3D In-vivo Shoulder Kinematics using Biplanar Videoradiography
06:09

Measuring 3D In-vivo Shoulder Kinematics using Biplanar Videoradiography

Published on: March 12, 2021

[Pathomorphology of shoulder instability].

E Wiedemann1, A Jäger, W Nebelung

  • 1OCM Klinik, München, Deutschland. ernst.wiedemann@ocm-muenchen.de

Der Orthopade
|December 25, 2008
PubMed
Summary

First-time shoulder dislocations can cause damage to the capsule, labrum, and bone. Significant bony defects may require more than just soft tissue repair for shoulder stability.

Area of Science:

  • Orthopedic Surgery
  • Sports Medicine
  • Anatomy

Context:

  • Traumatic anterior first-time shoulder dislocation involves injuries to the capsule, labrum, and bone.
  • Pathomorphological changes occur at the capsule's origin, insertion, or the capsule itself.
  • Common injuries include Bankart lesions (labral avulsion) and HAGL lesions (capsular avulsion from humeral head).

Purpose:

  • To highlight the diverse pathomorphological changes associated with traumatic anterior shoulder dislocations.
  • To emphasize the prognostic importance of bony deformities in shoulder instability.
  • To underscore the limitations of soft tissue repair in cases of significant glenoid bone defects.

Summary:

  • Anterior shoulder dislocations can result in Bankart lesions, HAGL lesions, and bony deformities like Hill-Sachs lesions.

More Related Videos

Reverse Total Shoulder Arthroplasty
10:10

Reverse Total Shoulder Arthroplasty

Published on: July 5, 2011

Related Experiment Videos

Last Updated: Jun 26, 2026

Measuring 3D In-vivo Shoulder Kinematics using Biplanar Videoradiography
06:09

Measuring 3D In-vivo Shoulder Kinematics using Biplanar Videoradiography

Published on: March 12, 2021

Reverse Total Shoulder Arthroplasty
10:10

Reverse Total Shoulder Arthroplasty

Published on: July 5, 2011

  • Glenoid bone defects, whether from fracture or chronic wear, significantly impact shoulder instability.
  • Large glenoid bone defects may compromise shoulder stability even after isolated soft tissue reconstruction.

    • Impact:

    • Provides a comprehensive overview of potential injuries in first-time shoulder dislocations.
    • Informs surgical decision-making by highlighting the role of bony defects in prognosis.
    • Underscores the need for evaluating bony integrity in managing shoulder instability.