Shoulder Arthritis FAQs: Treatment Questions Answered

Shoulder arthritis is most commonly caused by osteoarthritis (wear and tear) or can develop after rotator cuff injuries. Other causes include rheumatoid arthritis, previous shoulder surgeries, fractures, and repetitive overhead activities. Age, genetics, and occupation also play a role.

Common symptoms include deep shoulder pain (often worse at night), stiffness and reduced range of motion, grinding or clicking when moving the arm, difficulty reaching overhead or behind your back, and weakness. Pain may radiate down the arm or be felt in the upper back.

Yes, hyaluronic acid injections can provide relief for shoulder osteoarthritis. They supplement the joint's natural lubrication. Shoulder injections require imaging guidance (fluoroscopy or ultrasound) for accurate placement into the glenohumeral joint.

Medicare Part B may cover hyaluronic acid injections for shoulder arthritis when medically necessary, though shoulder indication is more limited than knee. Coverage depends on diagnosis documentation and medical necessity. Prior authorization may be required for some Medicare Advantage plans.

The shoulder joint (glenohumeral joint) is small and surrounded by complex anatomy including the rotator cuff. Imaging guidance ensures the medication reaches the joint space rather than surrounding bursae or tendons. Studies show blind shoulder injections have significant miss rates.

Shoulder arthritis affects the joint cartilage, causing bone-on-bone friction. Rotator cuff tears involve the tendons and muscles that stabilize the shoulder. Both can cause pain and limited movement, and can occur together. Diagnosis requires imaging (X-ray for arthritis, MRI for rotator cuff).

Frozen shoulder (adhesive capsulitis) causes the shoulder capsule to thicken and tighten, severely restricting movement. Unlike arthritis, frozen shoulder typically develops suddenly and may resolve on its own over 1-3 years. Treatment focuses on stretching and physical therapy rather than injections into the joint.

Shoulder replacement is considered when conservative treatments fail to provide adequate relief, daily activities are significantly impaired, and imaging confirms severe joint damage. Options include total shoulder replacement or reverse shoulder replacement depending on rotator cuff status.

Gentle range-of-motion exercises, pendulum exercises, and wall walks can help maintain mobility. Strengthening the rotator cuff and scapular muscles provides better joint support. Avoid overhead pressing and heavy lifting. A physical therapist can create an appropriate program.

Shoulder arthritis often causes night pain. Try sleeping on your unaffected side with a pillow supporting the painful arm, or sleep slightly reclined. Ice before bed may help. If night pain significantly disrupts sleep, discuss this with your doctor as it may indicate the need for treatment.