The scapholunate ligament connects the scaphoid and lunate bones in the wrist and is a primary stabilizer of the joint between the two. Miller is not the first star NBA player to suffer this injury.

The scaphoid bone is one of the eight small bones in the wrist. It helps coordinate motion and stability in the wrist joint.

The scapholunate dissociation allows the scaphoid to move away from the lunate and therefore, reproduce a gap in the joint. Patients experiencing this difficulty will rarely improve with rest alone.