laterales ulnares Kollateralband des Ellenbogens
The elbow:
review of anatomy and common collateral ligament complex pathology using MRI. Modified oblique coronal plane of the elbow used to optimally visualize the collateral ligaments. a Sagittal T1-weighted MRI showing the modified oblique coronal plane (multiple white lines) oriented 20–30° posterior to the long axis of the humeral diaphysis. b Coronal T1-weighted MRI showing the intact lateral ulnar collateral ligament (white asterisks)
The elbow:
review of anatomy and common collateral ligament complex pathology using MRI. Elbow illustration. Medial view (a) demonstrating the medial collateral ligament complex: anterior bundle of the medial collateral ligament (A-MCL), posterior bundle of the medial collateral ligament (P-MCL), and transverse ligament (T-MCL). Lateral view (b) demonstrating the lateral collateral ligament complex: lateral ulnar collateral ligament (LUCL), radial collateral ligament (RCL), and annular ligament (AL)
The elbow:
review of anatomy and common collateral ligament complex pathology using MRI. Consecutive coronal FS PD-weighted MRI (a–d) showing the intact lateral ulnar collateral ligament (white asterisks) and radial collateral ligament (short arrows). The lateral ulnar collateral ligament wraps around the posterior aspect of the radial neck. Annular ligament (long arrow). Common extensor tendon (white arrowheads). Lateral epicondyle (LE). Supinator crest of the ulna (SC)
The lateral ulnar collateral ligament (LUCL) of the elbow is a primary stabilizer of the elbow joint to varus and external rotatory stress .
Gross anatomy
It is a part of the lateral (radial) collateral ligament complex and located at the posterolateral aspects of the elbow joint. It takes its course immediately posterior to the radial collateral ligament and further distally posterior to radial head, where it blends with fibers of the annular ligament.
Attachments
- humeral origin at the posteroinferior aspect of the lateral (radial) epicondyle just posterior to the origin of the radial collateral ligament (RCL)
- distal (ulnar) insertion at the proximal part of the supinator crest
Related pathology
- posterolateral rotatory instability
- the lateral ulnar collateral ligament (LUCL) is considered as a primary constraint
- lateral ulnar collateral ligament (LUCL) reconstruction is considered as primary treatment for recurrent instability
Siehe auch:
und weiter:
Assoziationen und Differentialdiagnosen zu laterales ulnares Kollateralband des Ellenbogens: