Related Experiment Video
Updated: Apr 23, 2026
08:03
Midface Hypoplasia and Cranial Base Morphology in Syndromic Craniosynostosis: A Comparative Analysis Study Using a Predictive Regression Model
Published on: November 4, 2025
442
Congenital humeroradial synostosis: a case report
Sandeep Nema1, Gs Vyas1, Ashish Sirsikar1
1Department of Orthopaedic Surgery, Melaka Manipal Medical College, Melaka, Malaysia.
Malaysian Orthopaedic Journal
|October 4, 2014
Summary
This report details a rare case of bilateral humeroradial synostosis in an infant. This unique presentation lacked familial or syndromic links, a finding not previously documented in Asia.
Area of Science:
- Orthopedics
- Pediatric Surgery
- Medical Genetics
Background:
- Humeroradial synostosis is a rare congenital anomaly resulting from longitudinal failure of differentiation.
- Over 150 cases globally, typically familial or syndromic, have been documented.
Purpose of the Study:
- To report a unique case of bilateral humeroradial synostosis in an infant.
- To highlight a case lacking familial or syndromic associations.
- To note the first reported instance of this condition in Asia.
Main Methods:
- Clinical case presentation.
- Detailed patient history and physical examination.
- Radiographic assessment of bilateral humeroradial joints.
Main Results:
- An infant presented with bilateral humeroradial synostosis at 1½ months of age.
- No familial history or associated syndromes were identified.
- This represents the first reported case in the Asian population.
Conclusions:
- Bilateral humeroradial synostosis can occur sporadically without syndromic or familial links.
- This case expands the known spectrum of humeroradial synostosis presentations.
- Highlights the importance of reporting rare pediatric orthopedic conditions globally.
Related Concept Videos
01:09Bones of the Upper Limb: Radius
8.9K
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...
The radius has a nail-shaped head, and a...
8.9K
01:19Bones of the Upper Limb: Humerus
11.2K
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...
11.2K
01:15Bones of the Upper Limb: Ulna
8.8K
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...
8.8K
01:07Development of the Limb Synovial Joints
4.9K
Joints form during embryonic development in conjunction with the formation and growth of the associated bones. The embryonic tissue that gives rise to all bones, cartilage, and connective tissues of the body is called mesenchyme.
The mesenchymal stem cells differentiate into chondrocytes that form the hyaline cartilage, and later the cartilaginous model of the bone. This model further transforms into a bone. This process is known as endochondral ossification.
During development, the limbs...
The mesenchymal stem cells differentiate into chondrocytes that form the hyaline cartilage, and later the cartilaginous model of the bone. This model further transforms into a bone. This process is known as endochondral ossification.
During development, the limbs...
4.9K
01:12General Case of Eccentric Axial Loading
687
Unsymmetrical bending occurs when the bending moment applied to a structural member does not align with its principal axis. This misalignment leads to complex stress distributions and deflection patterns that differ from symmetrical bending, which are essential for designing structures to withstand different loading conditions.
Consider a member subjected to equal and opposite forces that are applied along a line that does not coincide with the member's neutral axis. In unsymmetrical...
Consider a member subjected to equal and opposite forces that are applied along a line that does not coincide with the member's neutral axis. In unsymmetrical...
687