Acute acromioclavicular injuries in adults

Area of Science:

• Orthopedics
• Sports Medicine
• Anatomy

Background:

• The acromioclavicular (AC) joint connects the clavicle and scapula, crucial for shoulder function.
• Its superficial location makes it susceptible to injury, accounting for 9% of shoulder girdle trauma.
• AC joint injuries predominantly affect males in their 20s, often seen in contact sports.

Purpose of the Study:

• To provide a comprehensive review of acromioclavicular joint injuries.
• To detail the anatomy, biomechanics, injury classification, and treatment strategies.
• To summarize outcomes of both operative and nonoperative management.

Main Methods:

• Literature review of existing studies on acromioclavicular joint injuries.
• Analysis of joint biomechanics and injury mechanisms.
• Examination of various surgical fixation techniques and therapeutic outcomes.

Main Results:

• Acromioclavicular joint injuries are frequent, especially in athletes.
• A detailed classification system aids in understanding injury severity.
• Both surgical and non-surgical treatments yield varying outcomes.

Conclusions:

• Understanding AC joint anatomy and biomechanics is key for effective treatment.
• Appropriate classification guides therapeutic decisions.
• This review synthesizes current knowledge for clinicians managing AC joint injuries.