Our Summary

This research paper explores the connection between osteoarthritis (OA) in the knee and OA in the shoulder. Osteoarthritis is a condition that causes joints to become painful and stiff. In this study, the researchers took detailed images of the shoulder joints of 105 patients who had knee OA and had undergone knee replacement surgery. They compared these images to those from a control group of 110 people. The results showed that shoulder OA was significantly more common in the patients who had knee replacements (29%) compared to the control group (15%). This difference was especially noticeable in patients in their 70s. This suggests that people with knee OA, who often rely on their arms for support due to knee pain and muscle weakness, could be putting their shoulder joints at risk of developing OA.

FAQs

  1. What is the connection between osteoarthritis in the knee and shoulder according to this research?
  2. What evidence in the study suggests that people with knee OA could be at risk of developing shoulder OA?
  3. Was there a significant difference in the occurrence of shoulder OA in patients who had knee replacements compared to the control group?

Doctor’s Tip

A doctor might advise a patient considering shoulder replacement surgery to focus on strengthening the muscles surrounding the shoulder joint to help support and protect the new joint. Additionally, they may recommend maintaining a healthy weight to reduce stress on the shoulder joint and following a rehabilitation plan post-surgery to improve range of motion and function. It is important for patients to follow their doctor’s recommendations and attend physical therapy sessions to ensure a successful recovery and long-term outcome after shoulder replacement surgery.

Suitable For

Patients who are typically recommended shoulder replacement surgery are those who are experiencing severe shoulder pain and stiffness that is significantly impacting their daily activities and quality of life. Common reasons for recommending shoulder replacement surgery include:

  1. Osteoarthritis: Patients with severe osteoarthritis in the shoulder joint may be recommended for shoulder replacement surgery to alleviate pain and restore function.

  2. Rheumatoid arthritis: Patients with rheumatoid arthritis may also benefit from shoulder replacement surgery to improve joint function and reduce pain.

  3. Rotator cuff tear: Patients with a severe rotator cuff tear that is not responding to conservative treatment may be recommended for shoulder replacement surgery to restore function and reduce pain.

  4. Avascular necrosis: Patients with avascular necrosis, a condition that causes the death of bone tissue due to a lack of blood supply, may require shoulder replacement surgery to restore joint function.

  5. Traumatic injury: Patients who have experienced a traumatic injury to the shoulder joint, such as a fracture or dislocation, may be recommended for shoulder replacement surgery to repair the damaged joint.

Overall, the decision to recommend shoulder replacement surgery is based on the individual patient’s symptoms, medical history, and overall health. Patients should consult with a healthcare provider to determine if shoulder replacement surgery is the best treatment option for their specific condition.

Timeline

Before shoulder replacement:

  1. Patient may experience pain and stiffness in the shoulder joint, often worsening over time.
  2. Patient may have difficulty performing daily activities such as reaching overhead, lifting objects, or dressing themselves.
  3. Patient may undergo imaging tests such as X-rays or MRI to diagnose the extent of damage in the shoulder joint.
  4. Patient may undergo non-surgical treatments such as physical therapy, medications, or injections to manage symptoms.
  5. If non-surgical treatments are not effective, patient may be recommended for shoulder replacement surgery.

After shoulder replacement:

  1. Patient undergoes shoulder replacement surgery, where the damaged parts of the shoulder joint are replaced with artificial components.
  2. Patient goes through a period of rehabilitation and physical therapy to regain strength and range of motion in the shoulder.
  3. Patient may experience temporary pain and discomfort post-surgery, which can be managed with medications.
  4. Patient gradually resumes normal activities and may find improvement in shoulder function and pain relief.
  5. Patient continues to follow up with their healthcare provider for regular check-ups and monitoring of the replaced shoulder joint.

What to Ask Your Doctor

  1. Is shoulder replacement surgery the best option for me, or are there alternative treatments available for my shoulder pain?

  2. What are the potential risks and complications associated with shoulder replacement surgery?

  3. What is the recovery process like after shoulder replacement surgery, and what kind of physical therapy or rehabilitation will be required?

  4. How long can I expect the shoulder replacement to last, and are there any lifestyle changes I should make to ensure its longevity?

  5. Will I experience any limitations in my range of motion or strength in my shoulder after the surgery?

  6. Are there any specific activities or movements I should avoid after shoulder replacement surgery?

  7. How will my shoulder function after the surgery compared to before, and what kind of improvements can I expect in terms of pain relief and mobility?

  8. What kind of follow-up care will be needed after the surgery, and how often will I need to see my doctor for check-ups?

  9. Are there any factors that may increase the likelihood of complications or reduce the success of the surgery in my case?

  10. Can you provide me with information on the success rates of shoulder replacement surgery for patients with similar conditions and demographics as mine?

Reference

Authors: Miyake Y, Namba Y, Mitani S, Umehara N, Kawamoto T, Furuichi S. Journal: Acta Med Okayama. 2023 Dec;77(6):613-618. doi: 10.18926/AMO/66153. PMID: 38145935