Hand and Wrist Flashcards
What 2 muscles are effected with Dequervain’s syndrome?
abductor pollicis longus
Extensor pollicis brevis
What syndrome is Tenosynovitis of the radial wrist extensors and is another name for “Squeaker syndrome?”
Intersection syndrome
What 2 muscles are affected with Intersection syndrome?
extensor carpi radialis longus
extensor carpi radialis brevis
What is the theory behind a ganglion cyst?
allows fluid out of the joint, but not back in
Where are most ganglion cysts (65%) formed?
scapholunate ligament
What is a genetic condition causing contracture of the deep fascia of the hand?
Dupuytren’s Disease
What side of the hand is most commonly effected with Dupuytren’s Disease?
Ulnar side
What should you check the length of with Dupuytren’s Disease?
forearm flexors
In what manner was Dupuytren’s Disease stitched up?
Zig-Zag
What is a traumatic disruption of terminal extensor tendon of DIP Caused by sudden flexion of the distal interphalangeal (DIP) joint while the finger is in an extended position?
Mallet Finger
What is another name for Mallet finger?
Baseball finger or drop finger
What action do you lose with Mallet finger?
extension at the DIP
How do you treat Mallet Finger if it is fractured?
K-wire
How do you treat Mallet Finger if it is NOT fractured?
splint in neutral or slight hyperextension
What is a fibrous nodule at a flexor tendon that slides under the annular ligament of the finger, and gets stuck; audible or palpatory clicks or popping sensation called?
Trigger finger
How should you treat a trigger finger with pain on AROM?
Conservative care
How should you treat a trigger finger with pain plus a click?
Conservative care and steroids
How should you treat a trigger finger with pain plus sticking?
Steroids
How should you treat a trigger finger with pain plus locking?
Surgery
What type of fracture is a Fracture-dislocation of the first metacarpal base where the metacarpal articulates with the trapezium?
Bennett’s fracture
What ligament lets the fragment stay intact with a Bennett’s fracture?
volar anterior oblique ligament
How does a Bennett’s fracture come about?
The thumb forced backward (abduction) with partially flexion of the MCP
What is acute instability of the ulnar collateral ligament (UCL), is the most common injury of the thumb and also known as Skier’s thumb?
Gamekeeper’s thumb
What is the mechanism of injury of Gamekeeper’s thumb?
Rapid forceful abduction and extension of the MP joint tears the ligament
What lesion of gamekeepers thumb, adductor aponeurosis separates the proximal and distal stumps?
Stenar lesion
What ligament is stressed with full hyperextension for Gamekeeper’s thumb?
accessory ligament
What ligament is stressed with 30 degrees of flexion for gamekeeper’s thumb?
UCL
What muscle’s tendon causes avulsion with jersey’s finger?
Flexor Digitorum Profundus
What is the mechanism of injury with jersey finger?
hyper-extension of a flexed finger
Do you want surgery immediately with Jersey finger?
Yes
What is the initial and most important reduction force for dorsal dislocations?
Direct traction
How do you tape dorsal dislocations?
buddy taping
How long should you splint dorsal dislocations?
2-4 weeks
How long should you splint a collateral ligament injury?
10-14 days
How should you NOT tape a collateral ligament injury?
in flexion (will cause boutinerre deformity)
How should you tape a collateral ligament injury?
buddy tape
How do you splint a volar plate injury?
Block splint
How long should you splint a volar plate injury?
4 weeks in 30 degrees of flexion
What fracture is of usually the 5th or 4th metacarpal neck?
Boxer’s fracture
What is the most common fracture of the carpals?
scaphoid fracture
What is the MOI of a scaphoid fracture?
FOOSH
What is the most commonly dislocated bone in the wrist?
lunate
What nerve may be injured with a lunate fracture?
Median nerve
What is the disease name called with avascular necrosis of the lunate?
Keinbock’s disease
Describe ulnar variance?
ulna is longer or shorter than the ulnar side of the radius
What is fractured with a Chaeuffer’s fracture?
radial styloid
What is fractured with a Smith’s fracture?
Distal radius
What kind fo deformity is caused by a Smith fracture?
Garden Spade deformity
What is the MOI of Smith’s fracture?
Falling on the back of the hand
What is fractured with Colles fracture?
distal radius with posterior fragments
What is the MOI of a Colles fracture?
FOOSH
