Lateral (radial) collateral ligament complex of the elbow
Laterale
(radiale) Bandinstabilität am Ellenbogen nach Luxation in der intraoperativen Durchleuchtung vor Bandrekonstruktion.
Laterale
(radiale) Bandinstabilität am Ellenbogen nach Luxation: Intraoperative Kontrolle mit Aufklappbarkeit/Distanzierung des Radiusköpfchens vom Capitulum humeri.
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)
Elbow •
Lateral elbow ligaments (Gray's illustration) - Ganzer Fall bei Radiopaedia
The lateral (radial) collateral ligament (LCL/RCL) complex is a major lateral stabilizer of the elbow joint and resists varus stress.
Gross anatomy
The LCL is a Y-shaped ligamentous complex composed of three parts :
- from sigmoid notch to supinator crest of the ulna bone
- forms a sling around the radial head
- anterior lateral epicondyle to annular ligament and supinator muscle fascia
- lateral epicondyle to supinator crest of the ulna
Variant anatomy
- accessory lateral collateral ligament
- may be present in up to 33% of patients
- runs from annular ligament to supinator crest
- acts to reinforce the annular ligament
- absence of lateral ulnar collateral ligament
Related pathology
- LCL tears: most commonly proximally at the insertion to the lateral epicondyle
- lateral epicondylitis
Siehe auch:
Assoziationen und Differentialdiagnosen zu Lateral (radial) collateral ligament complex of the elbow: