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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...
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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.
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The ulna and radius are parallel bones of the antebrachium or the forearm. The ulna lies medially and consists of a bony tip called the olecranon process at its proximal end. This hook-like projection articulates with the olecranon fossa of the humerus and forms the "hinged" ulnohumeral part of the elbow joint. This joint facilitates forearm extension and flexion while preventing its hyperextension. Similarly, the coronoid process, another bony projection on the proximal/anterior side...
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Ipsilateral Shoulder and Elbow Dislocation.

Toriana R Dabkowski1, Alay Parikh1, Cathya S Olivas Michels1

  • 1Department of Emergency and Hospital Medicine, Lehigh Valley Health Network / USF Morsani College of Medicine, Lehigh Valley Campus, Allentown, Pennsylvania.

The Journal of Emergency Medicine
|July 21, 2024
PubMed
Summary

Simultaneous ipsilateral shoulder and elbow dislocations are rare, often caused by trauma. This case highlights a unique instance of this injury occurring after a simple fall, emphasizing the need for emergency physician awareness.

Keywords:
elbowjoint dislocationshouldersimultaneous dislocation

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Area of Science:

  • Orthopedics
  • Emergency Medicine
  • Trauma Surgery

Background:

  • Shoulder and elbow dislocations are common emergency department presentations.
  • Simultaneous ipsilateral dislocations of the shoulder and elbow are infrequently reported.
  • These injuries typically result from significant traumatic events.

Purpose of the Study:

  • To report a rare case of simultaneous ipsilateral shoulder and elbow dislocation.
  • To describe an unusual, non-traumatic mechanism of injury for this condition.
  • To increase emergency physician awareness of this uncommon injury pattern.

Main Methods:

  • A case report of a 45-year-old female presenting after a fall.
  • Radiographic evaluation of the right upper extremity.
  • Clinical assessment and management of dislocations.

Main Results:

  • The patient sustained a posterior right elbow dislocation and an anterior right shoulder dislocation.
  • No associated fractures were identified on radiographs.
  • Successful closed reduction of both the shoulder and elbow dislocations was performed.

Conclusions:

  • Simultaneous ipsilateral shoulder and elbow dislocations can occur without significant trauma.
  • Emergency physicians should consider this diagnosis in patients with upper extremity pain after falls.
  • Prompt diagnosis and reduction are crucial for favorable outcomes.