Page 1125 - TNFlipTest

Toronto Notes 2019
Basic Anatomy Review
Plastic Surgery PL3
Distal interphalangeal joint
Flexor digitorum profundus
Proximal interphalangeal joint
Camper’s chiasm
Flexor digitorum superficialis
Metacarpal phalangeal joint
Figure 5. Flexor tendon insertion at PIP and DIP
Lateral bands Central slip
Extensor hood
Oblique fibres
Sagittal fibres
Lumbrical
Interosseous muscles
Extensor digitorum communis
Figure 6. Extensor mechanism of digits Palmar
DIP
PIP
MCP
5 6 7
9
1. Hyponychium 2. Sterile matrix 3. Germinal matrix 4. Ventral floor
5. Lunula
1 2
3 4
8
10
6. Eponychium
7. Dorsal root
8. Distal phalanx 9. Extensor tendon 10. Flexor tendon
Flexor retinaculum Median nerve
Flexor carpi radialis tendon
Flexor pollicis longus tendon
Trapezium Trapezoid
1
Palmaris longus tendon
Ulnar artery Ulnar nerve
Flexor digitorum
Figure 7. Nail anatomy
Flexor Tendons
All require OR repair
Extensor Tendons
ER repair unless proximal/multiple tendons
Carpal Bone Mnemonic
So Long to Pinky. Here Comes The Thumb.
Scaphoid Lunate Triquetrum Pisiform Hamate Capitate Trapezoid Trapezium
cialis tendons
Flexor digitorum profundus tendons
super
fi
Hamate Capitate
Figure 8. Carpal tunnel
Dorsal
87164 953
6 10 4
9 5 7 2
10 2
1. Extensor retinaculum
Compartment 1
2. Abductor pollicis longus 3. Extensor pollicis brevis
Compartment 2
4. Extensor carpi radialis brevis 5. Extensor carpi radialis longus
Compartment 3
6. Extensor pollicis longus
(EPL tendon passes around Lister’s tubercle)
Compartment 4
7. Extensor digitorum 8. Extensor indicis
Compartment 5
9. Extensor digiti minimi
Compartment 6
10. Extensor carpi ulnaris
8
3
Figure 9. Extensor compartment of the wrist (dorsal view and cross-sectional view)
© Diego Accorsi 2011
© Crista Mason 2005
© Qing Huang 2005
© Ashley Hui 2016