Finger Extensor Tendon Injury
Tendons are responsible for connecting muscles to bone. The fingers have tendons that run from the forearm through the finger. The extensor tendons are located on the back of the hand and fingers. They let you open your hand and straighten your fingers. An extensor tendon injury is a cut or tear to one of these tendons. When they are damaged, you can lose the ability to extend your hand and/or finger(s). Two common extensor injuries are:
- Mallet finger—the tendon is affected at the last joint on the finger, usually from a jammed finger
- Boutonniere Deformity—the tendon is affected at the middle joint, usually caused by an arthritis-like condition
Extensor Tendons of the Hand
Copyright © Nucleus Medical Media, Inc.
Last reviewedSeptember 2013by Teresa Briedwell, DPT, OCS
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.