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Many common wrist injuries occur due to a fall on an outstretched hand. This mechanism can cause numerous types of injuries including fractures, ligament sprains and cartilage injuries. One of the most important types of injuries to diagnose is a scaphoid fracture. Scaphoid injuries make up 15%...

What is the AC joint?  The AC joint is a plane synovial joint formed between the acromion of the scapula (shoulder blade) and the distal end of the clavicle (collarbone), on top of the shoulder.  The joint is stabilised by the acromioclavicular (AC) ligaments, coracoclavicular (CC) ligaments and the coracoacromial (CA) ligament (Kiel & Kaiser, 2020). This joint is...