wrist joint

1. DR.CHHAVI SINGH
ASST. PROF./ VICE – PRINCIPAL
NIMS COLLEGE OF PHYSIOTHERAPY
& OCCUPATIONAL THERAPY
Trick Movements of
Wrist Joint

2. CONTENTS :
 INTRODUCTION
 BASICANATOMY
 LIGAMENTS
 MUSCLES
 KINESIOLOGY

3. INTRODUCTION:
 The wrist (carpus) consists of two compound
joints : the radiocarpal and the midcarpal joints ,
referred to collectively as the wrist complex.
 The major contribution of the wrist complex
seems to be to control length-tension
relationships in multiarticular hand muscles and
to allow fine adjustment of grip.
 The wrist muscles appears to be designed for
balance and control rather than for maximising
torque production.

4. BASIC ANATOMY OF WRIST JOINT:
 Wrist joint is a synovial joint of ellipsoid
variety between lower end of radius and
three lateral bones of proximal row of carpus.
Articular Surface:
 Upper - inferior surface of the lower end of
the radius . - articular disc of the inferior
radioulnar joint.
 Lower – scaphoid ; lunate ; triquetral bones.

5. LIGAMENTS:
The ligaments of the wrist complex are designated either – extrinsic
or intrinsic.
Extrinsic ligaments are those that connect the carpals to the radius
or ulna proximally or to the metacarpals distally .
Intrinsic ligaments are those that interconnect the carpals
themselves & also known as intercarpal / interosseous ligaments.
VOLVAR CARPAL LIGAMENTS – it has three distinct bands .
Radiocapitate ; short & long radioulnate ; & radioscapholunate.
RADIAL COLLATERAL LIGAMENT to maintain the stability.
ULNAR COLLATERAL LIGAMENT at radioulnar deviation

6. ONTHE PALMAR ASPECTTHERE ARETWO CARPAL
LIGAMENTS :
• Palmar radiocarpal ligament
• palmar ulnocarpal ligament
ONTHE DORSALASPECT OFTHE JOINTTHERE IS
ONE LIGAMENT :
•Dorsal radiocarpal ligament

7. MUSCLES OF THE WRIST COMPLEX:
 Six muscles have tendons crossing the volar aspect of the
wrist & therefore are capable of creating a wrist flexion
movement.
 Flexor Compartment:
1. Palmaris longus
2.Flexor carpi radialis
3.Flexor digitorum profundus
4. Flexor digitorum superficialis
5.Flexor policis longus
6.Flexor carpi ulnaris

8. EXTENSOR COMPARTMENT :
The dorsum of the wrist complex is crossed by
tendons of nine muscles:
1. Extensor carpi radialis longus.
2. Extensor carpi radialis brevis.
3. Extensor carpi ulnaris.
4. Extensor digitorum communis.
5. Extensor indicis proprius.
6. Extensor digiti minimi.
7. Extensor pollicis longus.
8. Extensor pollicis brevis.
9. Abductor pollicis longus.

9. KINESIOLOGY:
OSTEOKINEMATICS :
1. Flexion / Extension -
 Axis - Coronal axis
 Plane - Sagittal plane
 ROM – (0 - 65 - 85 ) degree of flexion
-(0 -55 - 80 ) degree of extension.
 Flexion is not pure , it is with ulnar deviation due to
oblique axis.
2. Ulnar / Radial Deviation -
 Axis - anteroposterior
 Plane - coronal plane.
 ROM - (0 - 30 ) degree of ulnar deviation
- ( 0 - 15 - 20 ) degree of radial deviation

11. ARTHROKINEMATICS:
Wrist Flexion / Extension :
 It follows CONVEX - CONCAVE rule.
 Roll & Slide will be in opposite direction.
 Dorsal Roll - during extension.
 Ventral Slide - lunate moves on styloid process of
radius.
Extension at RadioCarpal joint:
 The convex surface of lunate rolls dorsally on radius
& slides ventrally.
Flexion at RadioCarpal joint :
 The convex surface of lunate rolls ventrally & slides
dorsally.

12. Extension at MidCarpal joint :
The convex capitate moves on concave lunate.
 Dorsal roll &Ventral slide.
Flexion at MidCarpal joint :
Ventral roll & Dorsal slide .
Ulnar Deviation :
 Convex - concave rule.
Scaphoid , lunate , triquetrum rolls on ulnar side while
slightly slide away radially in radial carpal joint.

13. Radial Deviation :
 The amount of radial deviation is limited into
impingement against styloid Process.
 Therefeore, most of the radial deviation
occurs at midcarpal joint & hamate,
triquetrum seperates at the end of radial
deviation.

14. THANK YOU