Related Experiment Video
Updated: Jul 7, 2025

04:59
Using a Knee Arthrometer to Evaluate Tissue-specific Contributions to Knee Flexion Contracture in the Rat
Published on: November 9, 2018
6.7K
The Relationship Between the Wrist Flexion Creases and the Volar Radiocarpal Joint: A Cadaveric Study
1The Ohio State University College of Medicine, Columbus, USA.
Summary
Wrist flexion creases reliably indicate the volar radiocarpal joint
Area of Science:
- Anatomy
- Orthopedic Surgery
Background:
- Traditional volar radiocarpal joint surgery involves extensive incisions, potentially leading to poor wound healing and wrist denervation.
- Minimally invasive and percutaneous techniques aim to reduce these complications.
- Accurate localization of the volar radiocarpal joint is crucial for these approaches.
Purpose of the Study:
- To investigate the relationship between volar wrist flexion creases and the volar radiocarpal joint.
- To determine if wrist flexion creases can serve as reliable landmarks for locating the joint.
Main Methods:
- Ten cadaveric upper-extremity specimens were utilized.
- Measurements were taken from the proximal and distal wrist flexion creases to the volar radiocarpal joint using fluoroscopy and dissection.
Main Results:
- The volar radiocarpal joint was consistently located proximal to the wrist flexion creases in all specimens.
- The joint was found to be 7 mm proximal to the proximal crease and 16 mm proximal to the distal crease.
- Radiographic findings correlated well with dissected anatomical structures.
Conclusions:
- Volar wrist flexion creases are dependable superficial landmarks for identifying the volar radiocarpal joint.
- These landmarks can assist clinicians in physical examinations and minimally invasive surgical procedures.
Related Concept Videos
Bones of the Upper Limb: Radius
2.2K
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...
2.2K
Bones of the Upper Limb: Ulna
2.2K
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...
2.2K
Muscles of the Forearm that Move the Hand and Fingers
999
The muscles of the forearm that move the wrist, hand, and digits are numerous and diverse. They can be classified into two groups based on their location and function — the anterior and posterior compartment muscles.
Anterior Compartment
The anterior compartment muscles originate from the humerus. They primarily function as flexors and are also known as flexor muscles. They typically insert on the carpals, metacarpals, and phalanges. The superficial layer includes the flexor carpi...
Anterior Compartment
The anterior compartment muscles originate from the humerus. They primarily function as flexors and are also known as flexor muscles. They typically insert on the carpals, metacarpals, and phalanges. The superficial layer includes the flexor carpi...
999
Bones of the Upper Limb: Humerus
3.2K
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...
3.2K
Muscles that Move the Forearm
1.5K
The muscles that move the forearms can be divided into four groups: forearm flexors, forearm extensors, forearm pronators, and forearm supinators. The flexors and extensors act on the elbow joint, while the pronators and supinators act on the radioulnar joints.
Forearm Flexors
The biceps brachii, brachialis, and brachioradialis are forearm flexors. The biceps brachii is made up of two heads. Its long head originates at the supraglenoid tubercle of the scapula, whereas that of the short head is...
Forearm Flexors
The biceps brachii, brachialis, and brachioradialis are forearm flexors. The biceps brachii is made up of two heads. Its long head originates at the supraglenoid tubercle of the scapula, whereas that of the short head is...
1.5K
Functional Classification of Joints
4.1K
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...
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...
4.1K

