My 25-year-old relative has an MRI showing left‑shoulder rotator‑cuff tendinopathy and subacromial bursitis (MRI without contrast). What is the recommended initial management?

Initial Management: Exercise Therapy and NSAIDs

For your 25-year-old relative with rotator cuff tendinopathy and subacromial bursitis (without a full-thickness tear), the recommended initial treatment is a structured exercise program combined with NSAIDs for pain control. 1

Why This Approach

The American Academy of Orthopaedic Surgeons guidelines provide a moderate-grade recommendation (the strongest available for this condition) stating that patients with rotator cuff symptoms in the absence of a full-thickness tear should be initially treated nonsurgically using exercise and/or NSAIDs 1. This recommendation is based on five level II studies showing beneficial effects in decreasing pain and improving function.

Key Evidence Points:

• Exercise programs demonstrated significantly improved pain scores after 8 weeks of treatment, with even greater improvement when combined with manual therapy 1
• Patients showed significant improvements in pain at rest, pain at night, and shoulder function scores after 3 months of home exercise programs 1
• The evidence consistently demonstrates improvement equivalent to surgical outcomes, with additional benefits of less sick leave, faster return to work, and reduced healthcare costs 2

The Exercise Program Should Include:

1. Initial phase (weeks 1-4):

   • Relative rest from aggravating activities (overhead movements, heavy lifting)
   • Pain-free range of motion exercises
   • Gentle pendulum exercises
   • Scapular stabilization exercises

2. Progressive loading phase (weeks 4-12):

   • Gradual progression from simple to complex shoulder movements
   • Controlled reloading with resistance bands
   • Rotator cuff strengthening (external rotation, internal rotation)
   • Functional movement patterns specific to daily activities

3. Advanced phase (after 12 weeks):

   • Sport-specific or work-specific training
   • Full range strengthening
   • Return to normal activities

The program should be graduated and structured, initially avoiding pain exacerbation, then progressively increasing load 2.

NSAIDs for Pain Control

While the guidelines note that evidence for NSAIDs specifically is limited (they cannot definitively recommend for or against), they are included in the moderate-grade recommendation for initial management 1. Use them for short-term pain relief to facilitate participation in the exercise program.

What About Corticosteroid Injections?

The evidence is conflicting and inconclusive for subacromial corticosteroid injections in rotator cuff tendinopathy without full-thickness tears 1. The 2020 AAOS guidelines note moderate evidence supports a single corticosteroid injection with local anesthetic for short-term improvement in pain and function 3. However, recent 2024 research showed that the presence of subacromial bursitis does not predict better outcomes from injection 4.

Clinical decision point: Consider a single corticosteroid injection only if pain is severe enough to prevent participation in physical therapy. Do not use multiple injections, as evidence shows inconsistent results and potential concerns about effects on tendon biology 1.

Important Caveats:

• Age is on their side: At 25 years old, your relative has excellent healing potential. Older age is associated with poorer outcomes, but this doesn't apply here 3
• The bursitis finding is not prognostically significant: Recent evidence shows subacromial bursitis presence does not influence clinical outcomes after treatment 4
• Surgery is NOT indicated: There is no full-thickness tear, and surgery (including subacromial decompression) is not recommended for tendinopathy alone 5

Expected Timeline:

• Short-term (6-8 weeks): Expect pain reduction and improved function
• Mid-term (3 months): Significant improvement in pain at rest, night pain, and shoulder scores
• Full recovery: Typically 3-6 months with consistent adherence to exercise program

Red Flags Requiring Re-evaluation:

• Progressive weakness despite therapy
• Acute traumatic event causing sudden loss of function
• No improvement after 3 months of appropriate conservative treatment
• Development of pseudo-paralysis (inability to actively elevate arm)

Bottom line: Start with a supervised physical therapy program emphasizing progressive rotator cuff and scapular strengthening, combined with NSAIDs for pain control. This approach has the strongest evidence for improving pain, function, and quality of life in young patients with rotator cuff tendinopathy and bursitis.