[Periarthritis scapulohumeralis].

Area of Science:

• Orthopedics
• Rheumatology
• Sports Medicine

Context:

• Frozen shoulder (periarthritis scapulohumeralis) is a prevalent condition characterized by significant shoulder pain and restricted motion.
• Pathogenesis involves inflammation and fibrosis of the shoulder capsule, leading to capsular contraction.
• Differentiating frozen shoulder from other shoulder pathologies like rotator cuff tears is crucial for appropriate management.

Purpose:

• To provide a comprehensive overview of frozen shoulder, including its clinical presentation, pathogenesis, diagnostic considerations, and natural history.
• To outline the typical three-phase progression (freezing, frozen, thawing) of the condition.
• To discuss current conservative and interventional treatment strategies.

Summary:

• Periarthritis scapulohumeralis, or frozen shoulder, presents with idiopathic painful restriction of shoulder movement due to capsular fibrosis.
• The condition progresses through distinct phases over 1-3.5 years and typically resolves spontaneously.
• Diagnosis relies on physical examination and imaging, distinguishing it from conditions like rotator cuff tears.

Impact:

• Enhanced understanding of frozen shoulder's natural course aids in patient counseling and expectation management.
• Highlights the importance of accurate diagnosis for effective treatment planning.
• Informs clinicians about conservative management options and the role of surgical intervention in refractory cases.