Related Experiment Video
Updated: Jun 16, 2026

10:10
Reverse Total Shoulder Arthroplasty
Published on: July 5, 2011
Bilateral posterior fracture dislocation of the shoulder
1Department of Orthopaedic Surgery, Hospital of Monastir, Monastir, Tunisia. mnif_hich@yahoo.fr
Chirurgie De La Main
|February 2, 2010
Summary
This study presents a case of bilateral posterior shoulder fracture-dislocation in a patient with osteogenesis imperfecta. Bilateral total shoulder arthroplasty resulted in a good midterm range of motion for both shoulders.
Area of Science:
- Orthopedic Surgery
- Traumatology
- Bone Diseases
Background:
- Osteogenesis imperfecta (OI) is a genetic disorder characterized by brittle bones.
- Shoulder fracture-dislocations are complex injuries, particularly in patients with compromised bone quality.
- Posterior shoulder dislocations are less common than anterior dislocations.
Observation:
- A 42-year-old male patient with a history of osteogenesis imperfecta presented with bilateral posterior shoulder fracture-dislocation.
- The injury involved significant comminution and a large articular surface area.
- Poor bone quality was a critical factor in the injury's severity.
Findings:
- Bilateral total shoulder arthroplasty was indicated due to the extensive comminution, large joint involvement, and poor bone stock.
- Midterm follow-up revealed a satisfactory range of motion in both surgically treated shoulders.
Implications:
- Total shoulder arthroplasty can be a viable treatment option for complex bilateral shoulder fracture-dislocations in patients with osteogenesis imperfecta.
- Successful surgical management can restore functional range of motion despite poor bone quality.
- This case highlights the importance of considering advanced reconstructive options in OI patients with severe orthopedic trauma.
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...
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...
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...
Functional Classification of Joints
Functional Classification of Joints
The functional classification of joints is determined by the amount of mobility between the adjacent bones. Joints are functionally classified as a synarthrosis or immobile joint, an amphiarthrosis or slightly moveable joint, or as a diarthrosis, a freely moveable joint. Fibrous and cartilaginous joints can be functionally classified as either synarthroses or amphiarthroses, whereas all synovial joints are classified as diarthroses.
Synarthrosis
An immobile...
The functional classification of joints is determined by the amount of mobility between the adjacent bones. Joints are functionally classified as a synarthrosis or immobile joint, an amphiarthrosis or slightly moveable joint, or as a diarthrosis, a freely moveable joint. Fibrous and cartilaginous joints can be functionally classified as either synarthroses or amphiarthroses, whereas all synovial joints are classified as diarthroses.
Synarthrosis
An immobile...
Bones of the Upper Limb: Ulna
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 of the...
Fractures: Bone Repair
Treatment for a fracture is based on the type of break, the bone affected, and the patient's age.
Minor fractures with no bone displacement are treated by immobilizing the fractured bone using a cast or splint. However, in the case of fractures with displaced bones, the broken bones are repositioned before immobilization to ensure successful healing without deformation and loss of function. The realignment of fractured bone ends is performed through a process called reduction. If the procedure...
Minor fractures with no bone displacement are treated by immobilizing the fractured bone using a cast or splint. However, in the case of fractures with displaced bones, the broken bones are repositioned before immobilization to ensure successful healing without deformation and loss of function. The realignment of fractured bone ends is performed through a process called reduction. If the procedure...
