The document discusses the ligaments, tendons, movements, and blood supply of the wrist joint. It describes important ligaments that support the wrist including the collateral ligaments, radiocarpal ligaments, intercarpal ligaments, and transverse carpal ligament. Tendons of flexor and extensor muscles are also detailed. Common fractures of the wrist joint are explained such as Colles' fracture, Smith's fracture, and scaphoid fracture. Blood supply and factors contributing to stability of the wrist joint are briefly mentioned.

1. Israa Kamel Mohamed El
Aaraby
WRIST JOINT:
LIGAMENTSAND TENDONS
RELATED , MOVEMENTSAND
BLOOD SUPPLY

2. LIGAMENTS RELATEDTO THE
WRIST
Two important ligamentssupporting thesides
of thewrist ( thecollateral ligaments) :
Theulnar collateral ligament Theradial collateral ligament

3. Palmar radiocarpal ligament And dorsal
radiocarpal ligament

4. Palmar intercarpal ligaments
Extend transversely
acrossthepalmar
surfacesof the carpal
bones, connecting
adjacent carpalstogether.

5. Dorsal intercarpal ligaments
Extend transversely
acrossthedorsal
surfacesof the carpal
bones, connecting
adjacent carpalstogether .

6. Palmar ulnocarpal ligament
Attached to theanterior
border of thelower end of ulna
And consistsof :
*Ulnolunate
*Ulnocapitate
*Ulnotriquetral ligaments.

7. Transversecarpal ligament
(flexor retinaculum )
A strong fibrousband converting thedeep grooveon
thefront of thecarpal bonesinto atunnel, thecarpal
tunnel.

8. Crosssection :
Deep : flexor tendons
median nerve
Superficial :ulnar nerve
and artery

9. Dorsal carpal ligament
(extensor retinaculum)

10. TENDONS RELATEDTO THE
WRIST
Thetendonsof theflexor muscles:
Superficial group Deep group
*flexor carpi radialis *flexor pollicislongus
*flexor carpi ulnaris *flexor digitorum profundus
*flexor digitorum superficialis
*Palmarislongus

11. Thetendonsof theextensor muscles
Supeficial group Deep group
*Extensor carpi radialislongus *Abductor pollicislongus
*Extensor carpi radialisbrevis *Extensor pollicisbrevis
*Extensor digitorum *Extensor pollicislongus
*Extensor digiti minimi *Extensor indicis
*Extensor carpi ulnaris

12. MOVEMENTS OFTHEWRIST
JOINT
Flexion Flexor carpi radialis
Flexor carpi ulnaris
Palmarislongus
Extension Extensor carpi radialislongus
Extensor carpi radialisbrevis
Extensor carpi ulnaris

13. Adduction flexor carpi ulnaris
Extensor carpi ulnaris
Abduction Extensor carpi radialis
longus and brevis
Flexor carpi radialis

14. BLOODSUPPLY

15. Stability of the joint
Bony configauration
Excessiveabduction of thewrist isprevented by the
radial styloid process.
Joint Capsule
Associated ligaments
Muscular arrangement
Theflexor carpi ulnarisisinserted in thePisiform and
Hamatebones.

16. Fractures of the wrist joint
Colles’ fracture
A fracturethrough thedistal metaphysisof theradius.
Common in older peoplewho fall and haveosteoporosis.
Occursfrom afall on to an outstretched hand that resultsin
forced dorsiflexion of thewrist.
Dinnerfork deformity

17. Smith's Fracture
A reverseColles' fracture
Caused by abackward fall on thepalm of
an outstretched hand

18. Barton's fracture:
*Distal radiusfracturewith dislocation of the
radiocarpal joint.
*It can bedorsal or volar depending on the
direction of dislocation.
*Basically it isaColles' or Smith'sfracturewith
dislocation.

19. Scaphoid fracture
Thisisthemost frequently injured carpal bone.
Classically occursfrom afall on to an
outstretched hand.
Local pain
Tendernessin theanatomical snuff box
The blood supply enters the scaphoid near
its waist and the fracture in this area leads
to the AvascularNecrosis of the scaphoid

20. Chauffeur's fractures
Thisisan isolated fractureof theradial
styloid.

21. UlnarStyloid process fracture
May beassociated with adistal radius
fracture.