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What Does the Research Say?
Complications After Shoulder Replacement: Early Warning Signs
Recognizing the signs early is the difference between a minor course correction and a major revision surgery. Here is what clinicians need to watch for.
8.9-12.5%
Overall Complication Rate
Overall complication rate for shoulder arthroplasty. Most are manageable when caught early. The key is knowing exactly what to look for and when to escalate.
Subscapularis Failure (Anatomic)
3-5%
Weakness in internal rotation, positive belly-press or lift-off test
Glenoid Loosening (Anatomic)
2-5%
Progressive pain with activity, especially loading through the joint
Dislocation (Reverse)
0.7-3%
Acute pain, deformity, loss of motion after specific arm positions
Infection (Both)
1-2%
Persistent pain, warmth, drainage, or systemic signs beyond expected timelines
When to Stop and Call the Surgeon
Any acute change in pain, loss of previously achieved motion or strength, instability symptoms, fever, wound drainage, or constitutional signs concerning for infection. Do not attribute these to normal postoperative recovery. Immediate evaluation is required.
As the clinician seeing patients most frequently, you are positioned to detect complications before they become catastrophic. Systematic assessment at every visit, not just when something seems off.
2
Infection Vigilance
Persistent Pain Beyond 6 Months Is Not Normal
When pain worsens instead of improving, or persists well beyond expected timelines, infection and loosening must be ruled out. Do not continue conservative management indefinitely without diagnostic workup.
3
Documentation Practice
Use Validated Outcome Measures to Track Trajectory
ASES scores, range of motion measurements, and strength testing at regular intervals create an objective record. Deviations from expected recovery curves trigger early investigation, not just clinical intuition.
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Meet the Author: Anne Osborn, PT, MPT
Anne Perry Osborn is a distinguished physical therapist and entrepreneur with over two decades of experience bridging clinical practice and healthcare education. She holds a Master of Physical Therapy from Texas Tech University Health Sciences Center and currently serves as the Owner and Director of Quality and Accreditation at Ridley Learning. With a background that includes clinical roles in outpatient rehabilitation and home health, Anne brings practical, hands-on insight to her leadership in continuing education, ensuring that learning opportunities remain relevant and impactful for today's practitioners.
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