Sublime tubercle avulsion | Radiology Case - Radiopaedia.org
It originates from the anteroinferior medial epicondyle of the humerus and inserts into the sublime tubercle. MRI is diagnostic. Conservative treatment frequently results in chronic valgus instability and pain. This case is used in 3 unlisted playlists.
Elbow Anatomy & Biomechanics - Shoulder & Elbow - Orthobullets
Mar 24, 2024 · the sublime tubercle on the ulna is where the anterior bundle of the medial ulnar collateral ligament attaches distally
Sublime Tubercle | Complete Anatomy - Elsevier
The sublime tubercle is the small prominence found on the medial aspect of the coronoid process of ulna. It provides an origin site for the humeroulnar head of flexor digitorum superficialis muscle (flexor digitorum sublimis muscle), as well as an attachment site for the ulnar collateral ligament.
Medial Ulnar Collateral Ligament Injury - Orthobullets
Sep 13, 2024 · Medial Ulnar Collateral Ligament Injuries are characterized by attenuation or rupture of the ulnar collateral ligament of the elbow leading to valgus instability in overhead throwing athletes. Diagnosis is usually made by a combination of physical exam and MRI studies. Treatment for most individuals is rest and physical therapy.
Ulnar Collateral Ligament Tears of the Elbow | Radsource
A corresponding fat-suppressed proton density-weighted axial image reveals interruption of cortex (arrow) at the site of the minimally displaced avulsion fracture of the sublime tubercle. Acute tears of the anterior bundle of the UCL can be directly visualized on high quality MR images.
Elbow Instability: Anatomy, Biomechanics, Diagnostic …
The sublime tubercle, on the anteromedial facet, is the insertion for the anterior bundle of the medial collateral ligament (MCL). 4 The osseous stability of the elbow is maximized in flexion owing to symmetrical positioning of the coronoid and radial head within their respective fossae .
Anatomy, Shoulder and Upper Limb, Elbow Collateral Ligaments
Jul 31, 2023 · Of note, while the most common insertion site for the anterior bundle of the MCL is the sublime tubercle, variations have been found. Studies have found anterior bundle insertion only 1 mm away from the joint line.
Elbow Imaging in Sport: Sports Imaging Series | Radiology
Partial tears of the distal attachment at the sublime tubercle have a characteristic appearance secondary to fluid or contrast material insinuating below the ligament along the margin of the bone, commonly referred to as the “T sign” .
Radiographic and MRI Assessment of the Thrower’s Elbow
The UCL serves as the primary restraint to valgus stress, particularly the anterior bundle. Originating on the undersurface of the medial epicondyle, the cord-like anterior band gently tapers and inserts within 2 mm of the sublime tubercle as it merges with the ulnar periosteum [6, 11, 12].
the coronoid forms the sublime tu-bercle. On average, 60% of the an-teromedial facet of the coronoid pro-cess is unsupported by the proximal ulnar metaphysis, making it prone to fracture with varus stress.3 The sublime tubercle serves as the inser-tion site of the anterior band of the medial collateral ligament (MCL), which originates from the ...