Bones that make up most of the wrist and hand
Carpals (8)
The bones that make up the wrist and hand
Carpals (8), Metacarpals (5), Phalanges (14)
Gamekeeper’s thumb causation
Forceful abduction of the thumb
Scaphoid fracture causation
FOOSHing
Carpal tunnel syndrome symptoms
Tingling (paresthesia) in thumb through radial half of ring finger
Palpation point of a scaphoid fracture
Anatomical snuffbox
Motions of the wrist
Flexion, extension, pronation, supination, circumduction, ulnar deviation, radial deviation
Carpal tunnel syndrome causation
Compression of the median nerve
Three categories of hand and wrist muscles and what they act on
Palmar- fingers
Thenar- thumb
Hypothenar- pinky
ORIF
Open reduction internal fixation
Names of the carpal bones
Scaphoid
Lunate
Pisiform
Trapezium
Trapezoid
capitate
hamate
The pinky extensor
Extensor digiti minimi
The thumb extensor
Extensor pollicis longus and brevis
The index finger extensor
Extensor indicis
Wrist and phalange extensors
Extensor digitorum communis
Extensor indicis
Extensor pollicis longus and brevis
Extensor digiti minimi
Wrist flexors
Flexor carpi radialis
Palmaris longus
Flexor carpi ulnaris
Wrist AND phalange flexors
Flexor digitorum superficialis
Flexor digitorum profundus
Flexor pollicis longus
Main cause of wrist sprain
FOOSH
Fracture that can cause avascular necrosis
Proximal fracture
If untreated, can lead to arthritis
Scaphoid fracture
Hamate fracture
Fracture of hook of hamate
Hamate fracture causation
Shearing force from a bat, racket, or club
What sport is a hamate fracture most common in?
Golf
Hamate fracture symptoms
Tenderness over hook, wrist pain, weak grip strength, “snap or pop”
Hamate fracture first rehab priority
Edema (swelling) control
Injury with low incidence in sports
CTS (Carpal tunnel syndrome)
Ganglion cysts
Common soft-tissue tumor in hand
Aspiration
Common treatment for ganglion cysts
Sports common with ganglion cysts
Weight lifters, shot putters, wrestlers, gymnasts
Where do ganglion cysts develop
Over tendon on dorsal side of the wrist
Boxer’s fracture
Fracture of the 5th metacarpal
Most commonly fractured metacarpal
5th metacarpal
Boxer’s fx causation
Hitting an object with a closed fist
Injury occasionally fixed by ORIF
Boxer’s fx
Rehab method to encourage ROM (boxer’s fracture)
Buddy taping
DeQuervain’s Tenosynovitis
Inflammation of abductor pollicus longus and extensor pollicus brevis tendons
DeQuervain’s Tenosynovitis causation
Excessive deviation (ulnar and radial) thumb flexion and adduction
Gamekeeper’s thumb
Sprain of ulnar collateral ligament in the thumb
Another name for gamekeeper’s thumb
Skier’s thumb
Gamekeeper’s thumb causation
Falling on thumb while abducted
Jersey finger
Rupture of flexor digitorum at DIP joint (most common at ring finger)
Jersey finger causation
Forceful hyperextension of fingers whilst gripping something
DIP Joint
PIP Joint
Mallet finger
Avulsion of extensor tendon at DIP joint
Mallet finger causation
Forced flexion of DIP joint whilst in full extension
Boutonniere deformity
Flexion of PIP joint and hyperextension of DIP joint
Boutonniere deformity causation
Extended finger is forcibly flexed
Joint between the hands and fingers
Metacarpophalangeal joint
“Roof” to the carpal tunnel
Transverse carpal ligament
Group of muscles that control finger abduction, adduction, and flexion
Palmar muscles
Most commonly fractured carpal bone
Scaphoid
Pinky muscles
Hypothenar muscles
Finger bones
Phalanges
Wrist bones
Carpals
Wrist movement similar to adduction & abduction
Deviation
Joint in wrist that allows supination and pronation
Distal radioulnar joint
Hand bones
Metacarpals