Related Experiment Video
Updated: Feb 2, 2026

09:17
3D Printing of Biomolecular Models for Research and Pedagogy
Published on: March 13, 2017
25.0K
A composite 3D printed model of the midcarpal joint
Rajendran Kanagasuntheram1, Nigel Keong Teck Geh2,3, Ching Chiuan Yen3
1Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, 4 Medical Drive, MD10, Singapore, 117594, Singapore. antrajen@nus.edu.sg.
Anatomical Science International
|November 21, 2018
Summary
This study used a composite 3D printed hand model to analyze midcarpal joint motion during the dart thrower
Area of Science:
- Orthopedics
- Anatomy
- Biomechanical Engineering
Background:
- Three-dimensional (3D) printing offers accurate anatomical models for education.
- Understanding complex hand and wrist joint movements is crucial for functional anatomy.
Purpose of the Study:
- To analyze midcarpal joint kinematics during the dart thrower's motion using a novel 3D printed model.
- To evaluate the utility of composite 3D printed models in teaching complex joint movements.
Main Methods:
- A composite 3D printed model of the distal carpal bones was created incorporating metal and magnets.
- The model was used to simulate and analyze movements at the midcarpal joint, including flexion, extension, abduction, and adduction.
- Observed motion patterns were analyzed in relation to the joint's anatomical structure.
Main Results:
- Notable adduction occurred at the midcarpal joint in the flexed position compared to the extended position.
- Primary movements occurred in the medial aspect of the midcarpal joint.
- The ellipsoid lateral aspect of the joint accommodated the overall arc of motion.
Conclusions:
- Composite 3D printed models effectively demonstrate and analyze complex midcarpal joint movements.
- These models serve as valuable educational tools for enhancing anatomical understanding of hand biomechanics.
Related Concept Videos
Structural Joints: Synovial Joints
6.8K
Synovial joints are the most common type of joint in the body. A key structural characteristic for a synovial joint is the presence of a joint cavity. This fluid-filled space is where the articulating surfaces of the bones contact each other. Also, unlike fibrous or cartilaginous joints, the articulating bone surfaces at a synovial joint are not directly connected to each other with fibrous connective tissue or cartilage. This gives the bones of a synovial joint the ability to move smoothly...
6.8K
Structural Joints: Fibrous Joints
3.8K
Fibrous joints are a type of joint where the bones are connected by fibrous connective tissue. These joints provide stability and minimal to no movement between the articulating bones. There are three types of fibrous joints.
Suture
All the bones of the skull, except for the mandible, are joined to each other by a fibrous joint called a suture. The fibrous connective tissue found at a suture strongly unites the adjacent skull bones and thus helps to protect the brain and form the face. In...
Suture
All the bones of the skull, except for the mandible, are joined to each other by a fibrous joint called a suture. The fibrous connective tissue found at a suture strongly unites the adjacent skull bones and thus helps to protect the brain and form the face. In...
3.8K
Structural Joints: Cartilaginous Joints
4.0K
As the name indicates, at a cartilaginous joint, the adjacent bones are united by cartilage, a tough but flexible type of connective tissue. Unlike synovial joints, these types of joints lack a joint cavity and involve bones joined together by either hyaline cartilage or fibrocartilage.
There are two types of cartilaginous joints:
Synchondrosis
A synchondrosis ("joined by cartilage") is a cartilaginous joint where bones are connected by hyaline cartilage. Synchondrosis may be temporary...
There are two types of cartilaginous joints:
Synchondrosis
A synchondrosis ("joined by cartilage") is a cartilaginous joint where bones are connected by hyaline cartilage. Synchondrosis may be temporary...
4.0K
Joints
35.7K
Joints, also called articulations or articular surfaces, are points at which ligaments or other tissues connect adjacent bones. Joints permit movement and stability, and can be classified based on their structure or function.
Structural joint classifications are based on the material that makes up the joint as well as whether or not the joint contains a space between the bones. Joints are structurally classified as fibrous, cartilaginous, or synovial.
Fibrous Joints Are Immovable
The bones of a...
Structural joint classifications are based on the material that makes up the joint as well as whether or not the joint contains a space between the bones. Joints are structurally classified as fibrous, cartilaginous, or synovial.
Fibrous Joints Are Immovable
The bones of a...
35.7K
Classifying Matter by Composition
90.4K
Matter: Pure Substances and Mixtures
According to its composition, the matter can be classified into two broad categories — pure substances and mixtures.
A pure substance is a form of matter that has a constant composition throughout with uniform properties. For example, any sample of sucrose has the same composition and same physical properties, such as melting point, color, and sweetness, regardless of the source from which it is isolated.
A mixture is composed of two or...
According to its composition, the matter can be classified into two broad categories — pure substances and mixtures.
A pure substance is a form of matter that has a constant composition throughout with uniform properties. For example, any sample of sucrose has the same composition and same physical properties, such as melting point, color, and sweetness, regardless of the source from which it is isolated.
A mixture is composed of two or...
90.4K
Method of Joints
1.3K
The method of joints is a commonly used technique to analyze the forces in structural trusses. The method is based on the principle of equilibrium, which assumes that the truss members are connected by frictionless pins. The forces at each joint can be determined by considering the equilibrium of the forces acting on that joint.
Since plane truss members are in the same plane, each joint is subjected to a coplanar and concurrent force system. To apply the method of joints, the first step is to...
Since plane truss members are in the same plane, each joint is subjected to a coplanar and concurrent force system. To apply the method of joints, the first step is to...
1.3K

