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Joint Prostheses

Elbow Hip Finger Knee Ankle

Elbow joint prostheses

Elbow joint prostheses are mainly comprised of humeral and ulnar components. They are reconstructed by sliding the articular surfaces of these two components. Depending on the product, we can offer a radial component that enables the elbow to bend and stretch naturally.
There are two ways of anchoring joint prosthesis, with bone cement or without bone cement. Teijin Nakashima Medical’s products that are attached without bone cement are processed with a titanium mesh on the bone contact surface of the humeral and ulnar components. With this process, the components adhere by the natural growth of bone tissue into the porous surface, making for a longer lasting prosthesis.


What are “Joint Prostheses” ?

Joint Prostheses are artificial materials that are used for regaining primary function of deformed or damaged joints. It is expected that the replacement of damaged joints can reduce pain and enhance Activities of Daily Living (ADL) and improve Quality of Life (QOL).

What are “Teijin Nakashima Medical’s Joint Prostheses” ?

Teijin Nakashima Medical’s joint prostheses come in various sizes suited for Japanese and Asian people, and can be selected according to a patient’s bone configuration.

Teijin Nakashima Medical has developed suitable materials and designs for each joint. A reduction of wear volume in the resin material is expected from mirror-polished metallic materials used for the sliding articular surfaces.

Sized to the patient, knee prostheses are attached to exposed area of the bone.


Applicable diseases of artificial joints


Osteoarthritis is a disease associated with a variety of factors such as muscle weakness, obesity, aging, etc. Progressive symptoms cause joint degeneration, which results in the development and progression of osteoarthritis. Symptoms may include joint pain and swelling in the knees, hips, elbows and shoulders. It occurs more frequently in females than in males, with age.

Rheumatoid arthritis

Rheumatoid arthritis is a disease that causes inflammation, pain, swelling and stiffness in the joints. As the disorder progresses, it leads to joint degeneration and dysfunction.

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