Wrist and Hand Injuries Review Questions and
Answers
Wrist and Hand Injuries - Correct Answers-Triangular Fibrocartilage Complex (TFCC)
-Carpal Tunnel Syndrome
-Wrist Fractures
-Schapoid Fractures
-Lunate dislocations
TFCC - Correct AnswersSeveral ligametns and other fibrous structures attach to the
fibrocartilage. As a unit the TFCC provides support to the distal radioulnar joint.
Disc is known as the TFCC- provides support @ distal radial ulnar jt
It helps absorb shock like when FOOSH
TFCC Tears - Correct AnswersMOI: forced hyperextension of wrist
S&S: ulnar-side wrist pain, diffuse swelling, loss of grip strength, "click" w/ active motion
(normally ulnar deviation), Point tenderness distal to ulnar styloid, decrease UD and
extension
(can be mistaken for general wrist sprain)
Carpal Tunnel - Correct Answers-Located on palmar surface of wrist
Lunate, triquetrum, pisiform & scaphoid
Transverse carpal ligament
-Contents
Flexor tendons
Median nerve
, Carpal Tunnel Syndrome - Correct AnswersMOI: Repeated wrist and finger flex/ext
S&S: pain wrist, hand, fingers; Pain usually worse @ night; Paresthesia in forearm, wrist
and hand; atrophy of thenar eminence; +carpal tunnel compression (pressure on median
nerve); +Tinel's sign; +Phalen's test
Colles Fracture - Correct AnswersDistal radius fracture w/ or w/o and associated fracture
of ulna (radius displaced dorsally)
MOI: FOOSH
Smith's Fracture - Correct AnswersReverse Colles fracture
Radius displace palmarly
Colles Fracture- S&S - Correct Answers-Loss of Function
-Deformity
-Pain
-Rapid Swelling
-Possible bony Deformity
-Delayed ecchymosis
-Possible median nerve damage
-Silver fork deformity
Scaphoid Fracture - Correct AnswersMost commonly fractures carpal bone
MOI: FOOSH (compresses scaphoid btwn radius and 2nd row of bones)
S&S: pt tendernes/swelling anatomical snuffbox; pain near end range of extension; pain w/
radial deviation; pain during compression down axis of thumb; weak grip
(could lead to avascular necrosis if not splinted properly; bone death= a piece of radial
artery breaks off)
Fracture may appear later
Lunate Dislocation - Correct AnswersMOI: FOOSH- Forced hyperextension
Answers
Wrist and Hand Injuries - Correct Answers-Triangular Fibrocartilage Complex (TFCC)
-Carpal Tunnel Syndrome
-Wrist Fractures
-Schapoid Fractures
-Lunate dislocations
TFCC - Correct AnswersSeveral ligametns and other fibrous structures attach to the
fibrocartilage. As a unit the TFCC provides support to the distal radioulnar joint.
Disc is known as the TFCC- provides support @ distal radial ulnar jt
It helps absorb shock like when FOOSH
TFCC Tears - Correct AnswersMOI: forced hyperextension of wrist
S&S: ulnar-side wrist pain, diffuse swelling, loss of grip strength, "click" w/ active motion
(normally ulnar deviation), Point tenderness distal to ulnar styloid, decrease UD and
extension
(can be mistaken for general wrist sprain)
Carpal Tunnel - Correct Answers-Located on palmar surface of wrist
Lunate, triquetrum, pisiform & scaphoid
Transverse carpal ligament
-Contents
Flexor tendons
Median nerve
, Carpal Tunnel Syndrome - Correct AnswersMOI: Repeated wrist and finger flex/ext
S&S: pain wrist, hand, fingers; Pain usually worse @ night; Paresthesia in forearm, wrist
and hand; atrophy of thenar eminence; +carpal tunnel compression (pressure on median
nerve); +Tinel's sign; +Phalen's test
Colles Fracture - Correct AnswersDistal radius fracture w/ or w/o and associated fracture
of ulna (radius displaced dorsally)
MOI: FOOSH
Smith's Fracture - Correct AnswersReverse Colles fracture
Radius displace palmarly
Colles Fracture- S&S - Correct Answers-Loss of Function
-Deformity
-Pain
-Rapid Swelling
-Possible bony Deformity
-Delayed ecchymosis
-Possible median nerve damage
-Silver fork deformity
Scaphoid Fracture - Correct AnswersMost commonly fractures carpal bone
MOI: FOOSH (compresses scaphoid btwn radius and 2nd row of bones)
S&S: pt tendernes/swelling anatomical snuffbox; pain near end range of extension; pain w/
radial deviation; pain during compression down axis of thumb; weak grip
(could lead to avascular necrosis if not splinted properly; bone death= a piece of radial
artery breaks off)
Fracture may appear later
Lunate Dislocation - Correct AnswersMOI: FOOSH- Forced hyperextension
