A shoulder orthosis includes an internal/external rotation device and a flexion/extension device. The internal/extension rotation device is configured to selectively facilitate internal rotation of a shoulder joint of a person and/or external rotation of the shoulder joint of the person. The flexion/extension device is configured to position the shoulder joint of the person in greater than 0 degrees of flexion and/or greater than 0 degrees of extension concurrently with the internal/external rotation device facilitating the internal rotation of the shoulder joint of the person and/or the external rotation of the shoulder joint of the person.