[Muscle, tendon and joint injections : What is the evidence?]

Area of Science:

• Orthopedics
• Sports Medicine
• Rheumatology

Background:

• Injections into muscles, tendons, and joints are key for managing musculoskeletal conditions, from acute injuries to chronic degenerative diseases.
• Commonly used medications include local anesthetics and glucocorticoids, despite potential side effects like chondrolysis.
• Platelet-rich plasma (PRP) and hyaluronic acid are also utilized, though their clinical efficacy is not consistently established.

Purpose of the Study:

• To provide a comprehensive overview of frequently used injection medications for musculoskeletal disorders.
• To detail the mechanisms of action for these therapeutic agents.
• To review the current literature regarding indications and evidence for muscle, tendon, and joint injections.

Main Methods:

• Literature review of current scientific publications.
• Analysis of established and emerging injection therapies for musculoskeletal conditions.
• Synthesis of evidence on the clinical effectiveness and safety of various injectable agents.

Main Results:

• Local anesthetics and glucocorticoids are standard treatments but carry risks, including chondrolysis.
• Platelet-rich plasma (PRP) and hyaluronic acid show variable clinical effectiveness.
• The article consolidates information on mechanisms, indications, and supporting evidence for common injection therapies.

Conclusions:

• Musculoskeletal injections are vital in conservative treatment strategies.
• Understanding the evidence base and potential side effects is crucial for optimal patient care.
• Further research may clarify the role of agents like PRP and hyaluronic acid in specific musculoskeletal conditions.