Upper Limb Joints Published on August 31, 2020 by ehudspeth Upper Limb Joints Which of the following is the least stable joint? Glenohumeral joint Sternoclavicular joint Acromioclavicular joint Humeroradial joint Proximal radioulnar joint While cheering, Kali is dropped from a stunt landing directly on her shoulder, which of the following is the MOST LIKELY injury? Tear of her glenohumeral ligament Tear of her coracohumeral ligament Fracture of her humeral diaphysis Tear of her transverse humeral ligament Dislocation of her shoulder A patient presents to your clinic after a recent wrist injury and you notice they are able to hyper-abduct their wrist. What structures are likely to be involved in this injury? Posterior radiocarpal and anterior joint capsule Radial collateral and lateral part of joint capsule Bony apposition between styloid process of radius and scaphoid Bony apposition between radius and carpal bones Anterior radiocarpal and anterior part of joint capsule A 12 year old male patient presents to the emergency department after following an ATV accident. Imaging confirms avulsion of the medial epicondyle of the humerus. The patient complains of paresthesia in the fifth digit and the medial half of the fourth digit. Which action of the thumb is most likely weakened or absent in this patient? Adduction Abduction Extension Flexion None of the above Time is Up!