The<unk>  collateral<unk>  (UCL, also known as medial collateral<unk>  is located on the medial side of the elbow. The UCL complex comprises three<unk> s: the anterior oblique, posterior oblique and transverse<unk> s. The anterior oblique<unk>  (AOL) attaches from the undersurface of the medial epicondyle to the medial<unk>  surface slightly below the coronoid process. It is the sturdiest of the three sections within the UCL. The AOL acts as the primary restraint against valgus stress at the elbow during flexion and extension. The posterior oblique originates at the medial epicondyle and inserts along the mid-portion of the medial semilunar notch. It applies more stability against valgus stress when the elbow is flexed rather than extended. The transverse<unk>  connects to the inferior medial coronoid process of the<unk> to the medial tip of the olecranon. Since it is connected to the same bone and not across the elbow joint, the transverse<unk>  has no contribution to the joint’s stability.
Ulnar collateral ligament injury of the elbow
Ulnar collateral ligament injury of the thumb
Metatarsophalangeal joint sprain
Iliotibial band syndrome
Olecranon bursitis
Patellar tendon rupture
Plantar calcaneal bursitis
Elbow fracture