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Shoulder replacement, or shoulder arthroplasty, is a highly successful procedure designed to relieve severe pain and restore mobility when conservative treatments (like physical therapy or injections) no longer work.

While less common than hip or knee replacements, it has a high satisfaction rate, with about 90–95% of patients reporting significant pain relief.

1. Types of Shoulder Replacement

The type of surgery you receive depends largely on the condition of your rotator cuff (the muscles and tendons that hold your shoulder in place).

Type How it Works Best For…
Anatomic Total Shoulder Both the “ball” (humerus) and “socket” (glenoid) are replaced with matching metal and plastic parts. Severe osteoarthritis with an intact rotator cuff.
Reverse Total Shoulder The ball and socket are switched: the ball is attached to the shoulder blade and the socket to the arm. Patients with torn/damaged rotator cuffs or severe fractures.
Partial (Hemiarthroplasty) Only the ball of the upper arm bone is replaced. Damage limited to the humerus (e.g., certain fractures or bone death).
Resurfacing A metal “cap” is placed over the ball rather than replacing the whole bone. Younger, active patients who want to preserve as much bone as possible.

2. When is it Time for Surgery?

Surgeons typically recommend replacement when shoulder damage interferes with “activities of daily living.” Common signs include:

 

  • Persistent Pain: Pain that prevents sleep or continues even when resting.

     

  • Loss of Function: Difficulty reaching overhead, dressing, or washing.

     

  • Mechanical Symptoms: Grinding, clicking, or a “locking” sensation in the joint.

     

  • Failure of Other Treatments: No improvement from physical therapy, cortisone shots, or anti-inflammatory meds.

3. Recovery Timeline

Recovery is a gradual process focused on protecting the new joint while slowly regaining range of motion.

 

  • Weeks 0–6 (Protection Phase): You will wear a sling nearly 24/7. You’ll begin very gentle, “passive” exercises where a therapist (or your other arm) moves the joint for you.

     
     
     

  • Weeks 6–12 (Functional Phase): The sling comes off. You start “active” movement (using your own muscles) and light daily tasks like eating or grooming.

     
     

  • Months 3–6 (Strengthening): You begin resistance training and can return to light hobbies like yoga or swimming.

     

  • 6–12 Months: Full recovery. Most patients achieve their final level of strength and flexibility by the one-year mark.

     

4. Risks and Considerations

While complications are rare (occurring in less than 5% of cases), it is important to be aware of:

  • Instability: The new ball can slip out of the socket (dislocation).

     

  • Loosening: Over 15–20 years, the implants may loosen from the bone, potentially requiring a “revision” surgery.

     

  • Infection/Nerve Damage: Standard risks for any major joint surgery.

  • Lifting Restrictions: Some surgeons advise against lifting more than 25 lbs permanently with an anatomic replacement to prevent the plastic socket from wearing out.

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