[So-called humero-scapular periarthropathy--classification and analysis based on 1,266 cases]

Area of Science:

• Orthopedics
• Rheumatology
• Musculoskeletal Imaging

Context:

• Periarthropathia humeroscapularis (PHS) is a common cause of shoulder pain.
• Understanding the diverse subtypes of PHS is crucial for accurate diagnosis and treatment.
• Sonography plays a key role in differentiating PHS subtypes and assessing rotator cuff integrity.

Purpose:

• To analyze clinical and sonographic findings in a large cohort of Periarthropathia humeroscapularis (PHS) cases.
• To categorize PHS into distinct subtypes: simplex (tendinitis), adhäsiva (stiff shoulder), calcarea (calcific tendinitis), and destructiva (rotator cuff lesions).
• To investigate the prevalence, demographic associations, and side predilection of each PHS subtype.

Summary:

• Analysis of 1266 PHS cases revealed PHS destructiva (rotator cuff lesions) at 33.3%, PHS simplex (tendinitis) at 32.8%, PHS calcarea (calcific tendinitis) at 17%, and PHS adhäsiva (stiff shoulder) at 12.6%.
• Isolated biceps tendinitis was rare (0.7%), while frozen shoulder (adhesive capsulitis) was distinct from PHS adhäsiva (1.9%).
• Demographic factors like age and sex showed significant associations with specific PHS subtypes, and a predilection for the right shoulder was noted in several types.

Impact:

• Provides a comprehensive classification of Periarthropathia humeroscapularis based on clinical and sonographic data.
• Highlights the importance of differentiating PHS subtypes for targeted therapeutic strategies.
• Offers insights into the epidemiology of shoulder pathologies, aiding in clinical practice and research.