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Related Concept Videos

Bones of the Upper Limb: Radius01:09

Bones of the Upper Limb: Radius

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The radius is longer of the two bones that make up the human antebrachium or forearm. At the proximal end, the radius articulates with the capitulum of the humerus and the radial notch of the ulna to form the elbow joint. At the distal end, the radius articulates with the ulna via the ulnar notch, forming the distal radioulnar joint. Distally, the radius also attaches to the carpal wrist bones (scaphoid and lunate) to form the radiocarpal joint.
The radius has a nail-shaped head, and a...
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Bones of the Upper Limb: Humerus01:19

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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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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...
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Muscles of the Shoulder01:23

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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.
Anterior Thoracic Muscles
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The Hyoid Bone01:12

The Hyoid Bone

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The hyoid bone is a small U-shaped bone located in the upper neck at the level of the inferior mandible, with its tips pointing posteriorly. It does not directly articulate with any other bone in the body. The hyoid acts as the attachment site for the tongue, the larynx, and the pharynx. It is held in position by a series of small muscles attached from above or below. These muscles help to move the hyoid up/down or forward/back in coordination with movements of the tongue, larynx, and pharynx...
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Bones of the Upper Limb: Ulna01:15

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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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Arthroscopic Management of Massive Irreparable Rotator Cuff Tears: Whole Rotator Cable Reconstruction Using Proximal Biceps Tendon Autograft
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Arthroscopic Management of Massive Irreparable Rotator Cuff Tears: Whole Rotator Cable Reconstruction Using Proximal Biceps Tendon Autograft

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Failure of coracoid bone-block.

Pierre Métais1

  • 1Service de chirurgie du membre supérieur, Elsan, hôpital privé la Châtaigneraie, 59, rue de la Châtaigneraie, 63110 Beaumont, France.

Orthopaedics & Traumatology, Surgery & Research : OTSR
|December 15, 2020
PubMed
Summary

Coracoid bone-block surgery offers lower recurrence rates for anterior shoulder instability compared to other methods. However, potential failures necessitate careful assessment and may require revision surgery for optimal shoulder function.

Keywords:
Capsular repairCoracoid bone-blockFailureIliac bone-blockInstability

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Area of Science:

  • Orthopedic Surgery
  • Sports Medicine
  • Shoulder Instability Research

Background:

  • Anterior unidirectional instability is a common shoulder condition.
  • Coracoid bone-block is a surgical technique used to address this instability.
  • While effective, failures can still occur, necessitating further investigation and treatment.

Purpose of the Study:

  • To evaluate the effectiveness of coracoid bone-block for anterior unidirectional instability.
  • To identify common failure modes and their management.
  • To compare revision surgery options.

Main Methods:

  • Review of clinical outcomes following coracoid bone-block surgery.
  • Radiographic and CT assessment to identify failure types (e.g., non-union, fracture, infection).
  • Analysis of revision surgery techniques, including iliac bone-block and anterior capsule repair.

Main Results:

  • Coracoid bone-block demonstrates lower recurrence rates for anterior instability.
  • Failure can manifest as recurrent instability, radiologic issues, or infection, often linked to technical errors.
  • Revision surgery, particularly iliac bone-block, can yield good functional results.

Conclusions:

  • Coracoid bone-block is a valuable, though technically demanding, procedure for anterior shoulder instability.
  • Understanding failure modes is crucial for successful revision surgery.
  • Iliac bone-block and anterior capsule repair with infraspinatus tenodesis are viable revision options, though osteoarthritis is a potential long-term complication.