eOrthopod

Patient Information Resources

Orthopedic Services
Glendale Adventist Medical Center
1509 Wilson Terrace
Glendale, CA 91206
Ph: (818) 409-8000

INFORMATION ABOUT:

Ankle

Elbow

Foot

Fractures

General

Hand

Hip

Knee

Pain Management

Shoulder

Wrist

View Web RX

« Back

I saw a TV special on a new joint implant they are using in Sweden to treat arthritis of the thumb. They said it was biodegradable. Doesn't biodegradable mean it breaks down? How does that work in the body?
The trapeziometacarpal (TMC) joint at the base of the thumb is a common place for osteoarthritis. Efforts have been made in the past to replace the joint with silicon implants. The implants didn't wear well and many patients had a reaction to the material. A Swedish company with previous success designing implants for the spine designed the biodegradable TMC joint spacer. The FDA approved the new thumb joint spacer for use in the Uunited States in September of 2004. The material used in the spacer can be broken down by a process called hydrolysis. This means water is used to split the chemical bonds holding the implant together. Hydrolysis of this kind in the body is done by the body's own natural enzymes. It takes about six years for this process to occur. Only about half the implant is actually degraded. The rest remains part of the tissue implantation.
References:

« Back

*Disclaimer:*The information contained herein is compiled from a variety of sources. It may not be complete or timely. It does not cover all diseases, physical conditions, ailments or treatments. The information should NOT be used in place of visit with your healthcare provider, nor should you disregard the advice of your health care provider because of any information you read in this topic.
	All content provided by eORTHOPOD® is a registered trademark of Mosaic Medical Group, L.L.C.. Content is the sole property of Mosaic Medical Group, LLC and used herein by permission.