1. UPPER LIMB
WRIST JOINT
2012

2. WRIST JOINT Synovial ellipsoid joint Distal end of the radius concave
Scaphoid is convex, lunate, triquetrum
Fibrous capsule attached to articular margins of bony elements
Joint cavity usually not continuous with that of the distal radio-ulnar joint
Articular disc sometimes perforated

3. WRIST JOINT
Joint cavity can be continuous with those of the intercarpal joints
Synovial membrane lines the non-articular elements in the joint

4. PALMAR Brachioradialis Radial artery Flexor carpi radialis
Palmaris longus with median n deep to it
Palmaris absent in about 12% cases
Flexor digitorum profundus
Ulnar artery
Ulnar nerve
Flexor carpi ulnaris

5. DORSAL
9 extensor tendons cross wrist joint in 6 compartments deep to extensor retinaculum
3 double and 3 single

6. DORSAL Lateral to Medial
Abductor pollicis longus, Extensor pollicis brevis
Extensor carpi radialis longus, Extensor carpi radialis brevis
Extensor pollicis longus
Extensor digitorum, Extensor indicis
Extensor digiti minimi
Extensor carpi ulnaris

7. CARPOMETACARPAL JOINTS THUMB
Thumb = saddle joint
Articulates with trapezium
Fibrous capsule surrounds joint
Joint cavity lined by synovial membrane
Palmar, dorsal radial carpometacarpal ligaments

8. CARPOMETACARPAL JOINTS THUMB
Resting position
Palmar surface medial
Dorsal surface lateral
Flexion
Thumb moves medially
Extension
Thumb moves laterally
Abduction
Thumb moves ant
Adduction
Thumb towards palm
Flexion tog with 30 degree med rot
Extension tog with 30 degree lat rot

9. METACARPOPHALANGEAL JOINTS
Synovial condylar joint
Metacarpal with proximal phalanx
Dorsal side
Fibrous capsule replaced by extensor hood
Ventral
Palmar plate / ligament
Ant part being grooved by long flexor tendons
Lateral side
Capsule reinforced by collateral ligaments

10. METACARPOPHALANGEAL JOINTS
Synovial condylar joint
Metacarpal with proximal phalanx
Dorsal side
Fibrous capsule replaced by extensor hood
Ventral
Palmar plate / ligament
Ant part being grooved by long flexor tendons
Lateral side
Capsule reinforced by collateral ligaments

11. METACARPOPHALANGEAL JOINTS MOVEMENTS
ABDUCTION
ADDUCTION
FLEXION
EXTENSION
THUMB only
Flexion
extension

12. INTERPHALANGEAL JOINTS
Structure similar to MCP joints
Movements
Flexion
Extension