Work-related injuries, car accidents, and sports injuries can affect elbow motion in different ways. The Elbow Extensionater® II is specifically engineered to allow the elbow to be positioned perfectly, no matter what the injury.

The elbow is not a simple hinge joint. In addition to flexion and extension, the elbow can pronate and supinate (pronate - To turn or rotate (the hand or forearm) so that the palm faces down or back and supinate - To turn or rotate (the hand or forearm) so that the palm faces up or forward). Different elbow injuries require the forearm to be positioned differently when stretching. ERMI’s unique design improves elbow extension while allowing perfect forearm alignment.

Common indications: ulnar collateral ligament reconstruction, radius fracture, ulnar fracture, humerus fracture, and biceps tear.

Share this page

Facebook Twitter LinkedIn LinkedIn

PDF version


Hanging up cloths. Swinging golf clubs. Playing tennis. All of these motions require full extension of the elbow.

Of all the joints, the elbow is perhaps the most difficult to rehabilitate. Following surgery, patients often develop arthrofibrosis  (an abnormal growth of fibrous ‘scar tissue’ around the joint’ of the elbow – which leads to loss of motion. In fact, according to Jesse B. Jupiter, MD. Surgical scar removal procedures have a complication rate between 10 to 30 percent.

The ERMI Elbow Extensionater®  is designed based on the principle of three point bending. Studies have shown that patients demonstrated an average of 15 degrees increased elbow extension in five weeks, with most demonstrating full elbow extension in that time frame.

The ERMI Elbow Extensionater® II is a very small, easy to use device that uses a patented pneumatic air bladder technology to improve extension.

View Device Video

Download Suggested Instructions for Use (pdf format), but make sure you follow all recommendations from your treating physician or physical therapist.