Carpal Tunnel

The Carpal Tunnel

Region on the volar aspect of the hand

Found at the proximal part of hand just beyond the wrist joint

The Flexor Retinaculum is a fibrous band of tissue that forms

the roof of the carpal tunnel

The Flexor Retinaculum is a fibrous band of tissue that forms

the roof of the carpal tunnel

It is attached to the carpal bones

CT reconstruction of Right Wrist

Radius

Ulna

CT reconstruction of Right Wrist

Radial attachment of the Flexor Retinaculum

Scaphoid(tubercle)

Radial attachment of the Flexor Retinaculum

Trapezium(ridge)

Ulnar attachment of the Flexor Retinaculum

Pisiform

Ulnar attachment of the Flexor Retinaculum

Hamate(hook)

Bony attachments of Flexor Retinaculum

Bony attachments of Flexor Retinaculum

Trapezium

TrapezoidCapitate

Hamate

Hypothenar

MusclesThenar Muscles

Cross-section through wrist

Right hand, palm upLooking distally towards fingertips

Trapezium

TrapezoidCapitate

Hamate

Hypothenar

MusclesThenar Muscles

Region of Carpal Tunnel

Right hand, palm upLooking distally towards fingertips

Trapezium

TrapezoidCapitateHamate

Hypothenar

MusclesThenar Muscles

Contents of the Carpal Tunnel

Right hand, palm upLooking distally towards fingertips

Trapezium

TrapezoidCapitateHamate

Hypothenar

MusclesThenar Muscles

Contents of the Carpal Tunnel

Median Nerve

Right hand, palm upLooking distally towards fingertips

Trapezium

TrapezoidCapitateHamate

Hypothenar

MusclesThenar Muscles

Contents of the Carpal Tunnel

Tendons of Flexor

Digitorum Superficialis

Right hand, palm upLooking distally towards fingertips

Trapezium

TrapezoidCapitateHamate

Hypothenar

MusclesThenar Muscles

Contents of the Carpal Tunnel

Tendons of Flexor

DigitorumProfundus

Right hand, palm upLooking distally towards fingertips

Trapezium

TrapezoidCapitateHamate

Hypothenar

MusclesThenar Muscles

Contents of the Carpal Tunnel

Tendon of Flexor Pollicis

Longus

Right hand, palm upLooking distally towards fingertips

Trapezium

TrapezoidCapitateHamate

Hypothenar

MusclesThenar Muscles

Contents of the Carpal Tunnel

Median Nerve

Tendons of

Flexor Pollicis Longus

Flexor Digitorum Superficialis

Flexor Digitorum ProfundusRight hand, palm up

Looking distally towards fingertips