Shoulder Arthritis: Stemless Total Shoulder Replacement Animation

Shoulder Arthritis: Stemless Total Shoulder Replacement Animation

This video demonstrates an anatomic shoulder replacement and the steps for placing a stemless humeral implant. After the surgical approach is completed, the surgeon will use a saw to remove the arthritic humeral head.

The size of the metal plate implant, called a trunnion, is then determined using a guide. Next, a series of steps are performed to prepare the bone to accept the final components later in the case. After the humerus is prepared, a protective cap is placed on the cut surface.

Next, the surgeon moves on to replacing the glenoid socket with an artificial socket. There are different types of glenoid components a surgeon can use based on their preference.

Once the glenoid implant is in place, the surgeon will turn their attention back to the humerus. They will remove the head cut protector cap and size the screw needed for fixation of the metal plate implant or trunnion to bone. Trial implants are placed to ensure for adequate sizing.

Once the surgeon confirms the sizes of each individual component, they will start to put in the final implants. This includes placing the trunnion and screw to fixate it to bone. Finally, the metal humeral head is impacted into place on top of the trunnion.

Once the implants are in, the surgeon will check the shoulder for stability by taking it through different motions. For closure of the surgical site, the surgeon will reapproximate the most anterior tendon of the rotator cuff, the subscapularis, back into position, followed by soft tissue and skin.