The patient’s reach with his thumb helps distinguish between frozen shoulder and osteoarthritis. How high is enough to tell?
Pain is often severe in patients with adhesive capsulitis, or frozen shoulder, and motion is restricted. Distinguishing between frozen shoulder and osteoarthritis may be difficult. Internal rotation of the shoulder is measured by the highest vertebral level that the tip of the thumb may reach with the arm behind the back.

Normal range of motion is indicated if the thumb reaches which of the following?
FDA Approves Guselkumab for Pediatric Plaque Psoriasis and Active Psoriatic Arthritis
September 30th 2025The FDA has approved guselkumab for children aged 6 years and older with moderate to severe plaque psoriasis or active psoriatic arthritis, making it the first IL-23 inhibitor authorized for pediatric use.