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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...
The Thoracic Cage: Sternum01:17

The Thoracic Cage: Sternum

The thoracic or rib cage forms the body's thorax (chest) portion. Its primary function in the body is to protect vital organs in the thoracic cavity, such as the heart and the lungs. It consists of 12 pairs of ribs with their costal cartilages and the sternum. The ribs are anchored posteriorly to the 12 thoracic vertebrae (T1-T12).
The sternum is the elongated bony structure on the anterior side of the thoracic cage. It consists of three parts: the manubrium, the body, and the xiphoid process.
Flail Chest-I01:24

Flail Chest-I

Overview of Flail Chest
Flail chest is a severe and potentially life-threatening condition characterized by the fracture of three or more adjacent ribs in multiple places. It is most commonly caused by direct impacts and trauma, such as motor vehicle accidents or injuries from a steering wheel impact. It can also occur due to falls in elderly individuals with osteoporosis, or assaults involving sharp objects.
Pathophysiology
The pathophysiology of flail chest is complex, involving fractures of...
Articulations of the Vertebral Column01:28

Articulations of the Vertebral Column

In addition to being held together by the intervertebral discs, adjacent vertebrae also articulate with each other at synovial joints formed between the superior and inferior articular processes called zygapophysial joints (facet joints). These are plane joints that provide for only limited motions between the vertebrae. The orientation of the articular processes at these joints varies in different regions of the vertebral column and serves to determine the types of motions available in each...

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Related Experiment Video

Updated: Jun 16, 2026

Surgical Fixation of Sternal Fractures: Preoperative Planning and a Safe Surgical Technique Using Locked Titanium Plates and Depth Limited Drilling
15:11

Surgical Fixation of Sternal Fractures: Preoperative Planning and a Safe Surgical Technique Using Locked Titanium Plates and Depth Limited Drilling

Published on: January 5, 2015

Posterior sternoclavicular joint dislocation.

C C Williams1

  • 1Crossroads Medical Centers PA, Chaska, MN, USA.

The Physician and Sportsmedicine
|January 21, 2010
PubMed
Summary
This summary is machine-generated.

Posterior sternoclavicular (SC) joint dislocations are rare but serious injuries. Early recognition and CT scans are crucial for diagnosing and managing these dislocations to prevent severe complications.

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Last Updated: Jun 16, 2026

Surgical Fixation of Sternal Fractures: Preoperative Planning and a Safe Surgical Technique Using Locked Titanium Plates and Depth Limited Drilling
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Published on: January 5, 2015

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Published on: August 8, 2025

Area of Science:

  • Orthopedic Surgery
  • Trauma Care
  • Radiology

Background:

  • Posterior sternoclavicular (SC) joint dislocations are uncommon injuries.
  • These dislocations can lead to life-threatening complications like hemorrhage or tracheal compromise.
  • Misdiagnosis is possible, with initial presentations sometimes mistaken for other injuries.

Purpose of the Study:

  • To describe a case of posterior SC joint dislocation in a young athlete.
  • To highlight the diagnostic role of CT scans in identifying posterior SC joint dislocations.
  • To emphasize the importance of recognizing clinical signs and employing prompt reduction techniques.

Main Methods:

  • Case report of a 21-year-old college football player with a shoulder injury.
  • Initial diagnosis based on physical examination and plain radiographs.
  • Further evaluation with CT scan to confirm the diagnosis.

Main Results:

  • Initial diagnosis was an apophyseal injury of the SC joint.
  • Increased pain prompted further investigation.
  • CT scan revealed a posterior SC joint dislocation.

Conclusions:

  • Posterior SC joint dislocations require prompt diagnosis and management.
  • CT imaging is essential for accurate identification of posterior SC joint dislocations.
  • Knowledge of diagnostic signs and reduction techniques can mitigate serious complications.