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Medical Professionals

Joint Prostheses

Shoulder Elbow Hip Finger Knee Ankle

Shoulder joint prostheses

Shoulder joint prostheses are mainly comprised of a scapula side and humerus side. Major indications are osteoarthritis and rheumatoid arthritis. Teijin Nakashima Medical offers shoulder joint prostheses specialized for rheumatoid arthritis for only the humerus side.

These prostheses are expected to improve the range of motion and reduce pain as ingenuity has been used to avoid rotation and sinking.

Our shoulder joint prostheses are designed not to interfere with humeral component stems that have already been implanted in patients.


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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