Ligaments of the wrist and hand
After going through this study unit you will be able to:
- Identify the main joints of the wrist and hand.
- Name and locate the ligaments that support those joints.
The ligaments are the connective tissue structures that connect two articulating bones. They participate in the stabilization of joints, but can also limit certain movements based on their position within the joint.
The wrist and hand feature several joints. Proximal to distal, the first one is the radiocarpal (wrist) joint which connects the forearm and the hand. The rest of the joints are in the hand, connecting groups of bones to each other (e.g. carpal and metacarpal), as well as individual bones amongst themselves (e.g. scaphoid and lunate). Namely, these joints are: intercarpal, carpometacarpal, intermetacarpal, metacarpophalangeal and interphalangeal joints.
The proper function of the ligaments is crucial for the normal mobility and function of the wrist and hand. This study unit will help you learn the anatomy and function of the ligaments of the wrist and hand.
Check out the video below to find out more about the many many ligaments of the wrist and hand!
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Take a closer look at each individual ligament of the wrist and hand in the galleries below!
|Distal radioulnar joint||Palmar radioulnar ligament
Dorsal radioulnar ligament
|Radiocarpal (wrist) joint||Palmar radiocarpal ligament (radioscaphocapitate ligament, short and long radiolunate ligaments, radioscapholunate ligament)
Palmar ulnocarpal ligament (ulnocapitate, ulnolunate, ulnotriquetral, ulnopisiform ligaments)
Dorsal radiocarpal ligament
Triangular fibrocartilage complex (palmar ulnocarpal ligaments, palmar radioulnar ligament, articular disc, ulnomeniscal homologue, tendon sheath of extensor carpi ulnaris muscle)
Collateral ligaments of wrist (radial/ulnar collateral ligaments of wrist joint)
Flexor retinaculum of wrist
Extensor retinaculum of wrist
Palmar intercarpal ligaments: Radiate carpal ligament (scaphocapitate, triquetrocapitate, palmar capitohamate, palmar trapezoideocapitate, trapezocapitate ligaments), palmar scaphotriquetral, palmar lunotriquetral, palmar triquetrohamate, pisotriquetral and pisohamate ligaments
Dorsal intercarpal ligaments
Intercarpal interosseous ligaments: Scapholunate interosseous ligament, lunotriquetral interosseous ligament, trapeziotrapezoidal interosseous ligament, trapezoideocapitate interosseous ligament, capitohamate interosseous ligament
|Carpometacarpal joints||Dorsal carpometacarpal ligaments
Palmar carpometacarpal ligaments
|Intermetacarpal joints||Palmar metacarpal ligaments
Dorsal metacarpal ligaments
Interosseous metacarpal ligaments
|Metacarpophalangeal joints||Proper collateral metacarpophalangeal ligaments
Accessory collateral metacarpophalangeal ligaments
Palmar metacarpophalangeal ligaments
Deep transverse ligament
|Interphalangeal joints||Palmar interphalangeal ligaments
Proper collateral interphalangeal ligaments
Accessory collateral interphalangeal ligaments