What is the appropriate treatment plan for a 72‑year‑old patient with a rotator cuff tear and humeral head subluxation?

Treatment of Rotator Cuff Tear with Humeral Head Subluxation in a 72-Year-Old

For a 72-year-old patient with rotator cuff tear and humeral head subluxation, begin with supervised physical therapy combined with NSAIDs and a single corticosteroid injection; if conservative treatment fails after 3-6 months and the patient develops pseudoparalysis or has moderate-to-severe glenohumeral chondrosis, proceed directly to reverse shoulder arthroplasty rather than attempting rotator cuff repair. 1, 2

Initial Conservative Management (First-Line for 3-6 Months)

Supervised physical therapy is mandatory as the foundation of treatment, not unsupervised home exercises, as strong evidence demonstrates improved patient-reported outcomes in symptomatic full-thickness rotator cuff tears. 1 The presence of humeral head subluxation indicates significant rotator cuff dysfunction but does not automatically necessitate surgery, as subluxation after rotator cuff pathology typically resolves with early active exercises in 92-96% of cases by 6 weeks. 3

Pain Management Protocol

• Administer NSAIDs regularly (not just as needed) combined with acetaminophen, starting pre-operatively if surgery is anticipated or immediately if treating conservatively. 4, 5

• Give a single corticosteroid injection with local anesthetic for short-term pain and functional improvement, with moderate evidence supporting this approach. 1, 2

• Avoid multiple steroid injections as they compromise rotator cuff integrity and negatively affect subsequent repair attempts if surgery becomes necessary. 1

Critical Monitoring During Conservative Treatment

Watch for these red flags that indicate treatment failure and need for surgical escalation:

• Progressive or persistent pain signals tear progression and warrants repeat imaging. 6
• Development of pseudoparalysis (inability to actively elevate the arm) indicates massive tear with functional incompetence. 2
• Increasing superior migration of humeral head on serial radiographs suggests progressive cuff tear arthropathy. 7

Surgical Decision-Making Algorithm

When to Avoid Rotator Cuff Repair in This 72-Year-Old

Age 72 is a critical negative prognostic factor, as strong evidence shows older age is associated with higher failure rates and poorer outcomes after rotator cuff repair. 2, 7 The presence of humeral head subluxation suggests either a large tear or significant muscle dysfunction, both of which further worsen surgical outcomes. 8

Proceed directly to reverse shoulder arthroplasty if any of the following are present:

• Pseudoparalysis with massive, unrepairable tear after failed conservative treatment 1, 2
• Moderate-to-severe glenohumeral chondrosis (the combination of rotator cuff tear and arthritis represents cuff tear arthropathy, a specific indication for reverse arthroplasty) 2
• Eccentric humeral head position with shortened acromio-humeral distance (<7 mm), which indicates progression toward cuff tear arthropathy 7
• Significant fatty infiltration or muscle atrophy on MRI, which predicts irreparable changes 6

When Rotator Cuff Repair Might Be Considered

Only consider rotator cuff repair in this 72-year-old if:

• The tear is small-to-medium sized (<3 cm) 1
• Minimal glenohumeral chondrosis is present 2
• No pseudoparalysis exists 2
• MRI shows minimal fatty infiltration and preserved muscle quality 6

However, even with successful repair, tendon healing rate is only 63% in older patients, and functional outcomes are significantly better only when healing is achieved (Constant Score 82 vs 73, P<0.001). 7 At age 72, the risk-benefit ratio favors conservative management first, with reverse arthroplasty as the surgical option if needed.

Addressing the Humeral Head Subluxation

The subluxation itself does not require specific isolated treatment beyond addressing the underlying rotator cuff pathology. 3 Inferior subluxation after rotator cuff tears resolves in essentially all patients (100%) by 6 weeks with early active exercises and sling use when not exercising. 3

If subluxation persists beyond 6 weeks or worsens, this indicates:

• Massive tear involving multiple tendons (particularly infraspinatus-teres minor complex, which are major humeral head depressors) 8
• Progressive deltoid force compensation that exacerbates superior migration 8
• Need for surgical intervention, specifically reverse arthroplasty rather than repair 2

Surgical Pain Management (If Surgery Becomes Necessary)

For Rotator Cuff Repair

• Continuous interscalene block is preferred over single-shot for extended pain relief. 4
• Administer IV dexamethasone to increase analgesic duration of the block and provide antiemetic effects. 4
• Continue paracetamol and NSAIDs regularly after block resolution to prevent rebound pain at 24 hours. 4

For Reverse Shoulder Arthroplasty

Similar multimodal approach with regional anesthesia and non-opioid baseline therapy. 4

Common Pitfalls to Avoid

• Do not rely on unsupervised home exercises in this population—supervised physical therapy is essential for optimal outcomes. 1

• Do not attempt rotator cuff repair in the presence of pseudoparalysis or moderate-to-severe chondrosis—these patients require reverse arthroplasty. 2

• Do not give multiple corticosteroid injections while attempting prolonged conservative management—this compromises tissue quality for potential future surgery. 1

• Do not ignore persistent or worsening pain—this signals tear progression and requires repeat imaging and treatment escalation. 6

• Do not assume all subluxation requires immediate surgery—most resolves with conservative treatment by 6 weeks. 3