[Calcific tendinitis of the shoulder]

Area of Science:

• Orthopedics
• Radiology
• Biochemistry

Background:

• Calcifying tendinitis is a two-phase condition involving hydroxyapatite deposits in the rotator cuff tendon.
• Fibrocartilage cells at the humerus head pivot typically form these deposits.
• Ossification is not directly involved in the primary degenerative process.

Purpose of the Study:

• To describe the two-phase nature of calcifying tendinitis.
• To correlate radiographic findings with disease progression and prognosis.
• To evaluate treatment outcomes for rotator cuff calcific deposits.

Main Methods:

• Analysis of radiographic (X-ray) and ultrasound findings in 235 cases.
• Correlation of imaging characteristics (Type I, II, III) with clinical symptoms and disease phases.
• Review of non-operative and operative treatment modalities and their success rates.

Main Results:

• Type I deposits are chronic, circumscribed, and dense; Type III are acute, translucent, and lack clear borders.
• Needle therapy success for resolution varies: 33% for Type I, 71% for Type II deposits.
• Pain relief is achieved in approximately 50% of patients; spontaneous resolution occurs in Type III deposits within 2-3 weeks.

Conclusions:

• Radiographic classification (Type I-III) aids in predicting the course of calcifying tendinitis.
• Non-operative management is the initial approach, with needle therapy offering variable success.
• Surgical outcomes are generally favorable, ranging from 77% to 96%.