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MS Therapeutics II: Hand Pathologies
Hand
94
Science
Graduate
11/02/2011

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Cards

Term
Possible Flexor Tendon Injuries?
Definition
FPL
FDS
FDP
Term
Mechanism of Injury for flexor tendon injuries?
Definition
Laceration
Industrial Accident
Crushed
Term
What are the Flexor Tendon Zones of the Hand? (range)
Definition
I-V
Term
Where is Zone I located?
Definition
between insertions of FDS and FDP.
Term
Between what pulleys does the FDP run under?
Definition
A4, C3, A5
Term
What is Flexor Tendon Zone II called?
Definition
Surgical no man's land
Term
Location of Flexor Tendon Zone II?
Definition
From FDS insertion to distal palmar crease
Term
What important structure begins in Zone II?
Definition
Flexor synovial sheath
(for index, middle and ring fingers)
Term
What pulleys are found in zone II?
Definition
A1, A2, A3, C1 and C2
Term
What pulleys are considered most important?
Definition
A2 and A4
Term
Distal to the MCP joint, Camper's chiasma teninum digitorum mannus is formed which allows?
Definition
FDP to pass through FDS on its way to insertion at the distal phalanx
Term
Flexor Tendon Zone III?
Definition
Runs from A1 to distal transverse carpal ligament
Term
What originates in Flexor Tendon Zone III?
Definition
Lumbricals (from FDP tendons)
Term
Where is Flexor Tendon Zone IV?
Definition
area covered by the transverse carpal ligament
Term
Where is Flexor Tendon Zone V?
Definition
Proximal to transverse carpal ligament (distal 1/3 of forearm)
Term
Contents of Flexor Tendon Zone V?
Definition
Radial Bursa- where FPL enters sheath
Ulnar Bursa- where FDS and FDP enter a sheath
Term
Delayed primary flexor tendon repair results are equal to or better than immediate repair of the flexor tendon
Definition
Term
If a patient is referred to you to prepare them for secondary flexor tendon repair, what should you work on?
Definition
Joint has useful PROM
Tissue is free of scar tissue
Minimize swelling
Term
What are the most frequent causes of failure of flexor tendon repairs?
Definition
scar tissue formation
rupture of repaired tendon
Term
Flexor Tendon Injury protocol depends on?
Definition
Age of patient
Trauma
Pulley integrity
Timing of repair
Location of injury
Compliance of Patient
Surgical technique
Term
What is trigger finger?
Definition
A painful snapping sound that occurs when the finger flexor tendon abruptly pulls through the A1 pulley
Term
Another name for trigger finger?
Definition
Stenosing Flexor Tenosynovitis
Term
Mechanism of Injury for Trigger finger?
Definition
Stenosis of A1 pulley
Thickening of flexor tendon
Term
What movements does the snapping occur through the A1 pulley?
Definition
Flexion and Extension
Term
What digits is trigger finger most commonly found in?
Definition
Thumb
Middle finger
Ring Finger

1, 3, 4
Term
What are predisposing factors to trigger finger?
Definition
Post-menopausal women
Diabetes
RA
Duputyren's Contracture
Tendinitis in UE
Term
Patient presentation for Trigger Finger?
Definition
Clicking/popping in finger
Pain with snap
Palpable nodule in A1 pulley
Term
Tx for Trigger finger?
Definition
Splinting has been ABANDONED

Corticosteroids or surgery
Term
What is Jersey Finger?
Definition
FDP avulsion off of distal phalanx
Term
What digit is Jersey finger most common?
Definition
Middle finger
Term
Mechanism of Injury for Jersey Finger?
Definition
Distal phalanx forcibly extended when trying to flex the finger (ie: grasp an object)
Term
Patient Presentation in Jersey Finger?
Definition
Sudden pain at distal phalanx
Inability to flex DIP
Hold the DIP in extension
May be able to palpate avulsed section proximally
Term
3 Types of Jersey Fingers?
Definition
Type I, II, III
Term
Type I Jersey Finger
Definition
Avulsed tendon retracts into palm (no bony frag)

Blood supply avulsed

Early reattachment necessary
Term
Type II Jersey Finger?
Definition
Avulsed tendon retract to where tendon is trapped by FDS and held by intact blood supply
Term
Type III Jersey Finger?
Definition
involves a large bone fragment from the distal phalanx which prevents retraction from A5 pulley
Term
Surgery is needed for all types of Jersey fingers. Which type is most common?
Definition
Type II
Term
What are the extensor tendon zones of the hand?
Definition
I-VIII
Term
Odd number zones correspond to DIP, PIP, MCP, and Wrist Joint
Definition
DIP=I
PIP=3
MCP=5
Wrist=7
Term
Injury in Extensor Tendon Zone I?
Definition
Mallet Finger
Term
Injury to Extensor Tendon Zone II=
Definition
Middle phalanx injury secondary to crush or laceration
Term
Zone III injury?
Definition
Boutonniere Deformity= central band rupture
Term
Boutonneire Deformity Tx?
Definition
Splinting for closed injury
Surgery for instability or displaced avulsion
Term
Zone IV extensor injury?
Definition
Broad extensor mechanism injury
Term
Zone V extensor Injury?
Definition
MCP joint injury; almost always requires surgery

May be accompanied by a Boxer's Fracture
Term
Extensor Zone VI INjury?
Definition
Dorsal Hand; surgery almost always recommended
Term
Extensor zone VII injury?
Definition
Wrist level
Injuries associated with retinaculum and lacerations resulting in scarring of tendon
Term
Extensor Tendon Zone VIII injury?
Definition
Musculo-tendinous junction/muscle bellies affected
Term
What is a mallet finger?
Definition

Avulsion of extensor tendon distal to DIP joint

(Rupture of Lateral Bands)

Term
Mechanism of injury for mallet finger?
Definition
Forced flexion of distal phalanx

Often the result of a finger being struck on the tip
Term
Patient presentation of mallet finger?
Definition
DIP held in flexion
Inability to extend the DIP
Tenderness over distal phalanx
Term
Types of Mallet Finger?
Definition
Type I=Extensor tendon avulsed
Type II= lacerated extensor tendon
Type III= Deep avulsion injuring skin and tendon
Type IV= fracture
Term
Tx for TYPE I mallet finger?
Definition
Continuous splinting of DIP in extension for 6-10 weeks. DIP should NOT fall into flexion at the time or treatment must start over!

Bedtime splinting after 6 weeks
Sports splinting for another 6 weeks
Term
Treatment of Type II or III?
Definition
Surgical repair then type I protocol
Term

Stable vs. Unstable Fractures?

 

List some fractures that commonly require surgery

Definition

Stable Fracture=fractures that will not displace if early digital motion is allowed

 

Unstable Fracture= fractures that displace an unacceptable amount if early digital motion is allowed

 

Fx Requiring Surgery:

Open

Comminuted displaced

Fracture with joint dislocation

Displaced spiral fx

 Displaced intra-articular fx

Fx involving loss of bone

 Multiple fx

Term
What is a Boxer's Fracture?
Definition
Fracture of the metacarpal neck of the 5th metacarpal
Term
Mechanism of Injury for Boxer's Fracture?
Definition
Glancing Punch with Main contact landing on the metacarpal head of the 5th metacarpal (CAN ALSO BE 3rd 4th MC)
Term
Patient Presentation of Boxer's Fracture?
Definition
Swelling around 5th MCP
Loss of ROM of 5th MCP
Rotational deformity
EXTENSOR LAG OF INVOLVED FINGER
Distal fx segment displaced palmarly
Term
Non-Displaced Metacrapal Fx treat with?
Definition
AP splint in
Term
Sprain of PIP presentation?
Definition
Stable Joint with ROM
Pain with ligament testing
Swelling
Term
Tx for PIP sprain?
Definition
Early ROM
Buddy Tape
Ice
NSAIDS
Term

Open PIP dislocation?

 

Tx?

Definition

Exposed joint with extensive soft tissue damage

 

Tx:Surgery

Term

Dorsal PIP dislocation tx?

 

Are dorsal PIP dislocations more or less common than volar PIP dislocations?

Definition

Closed reduction and splinting

 

MORE COMMON THAN VOLAR

Term
Type I dorsal PIP dislocation?
Definition
Hyperextension injury
Volar plate avulsed
Minor collateral lig damage
Term
Type II dorsal PIP dislocation?
Definition
Hyperextension injury
Volar plate avulsed
MAJOR collateral ligament damage
Term
Type 3A dorsal PIP dislocation?
Definition
Stable fx-dorsal dislocation
Term
Type 3B dorsal PIP dislocation?
Definition
Unstable fx dorsal dislocation
Term
Lateral PIP dislocation mechanism of injury?
Definition
secondary to collateral ligament injury
Term
With lateral PIP dislocations may have avulsion and or rupture of the volar plate
Definition
Term
Treatment for Lateral PIP dislocation?
Definition
Closed reduction
1 week of immobilization
Buddy taping after 1 week
Term
Volar PIP Dislocation: Types?
Definition
Straight volar dislocation
Ulnar or radial volar displacement
Term
Volar PIP Dislocation: Straight volar dislocation
Definition
Proximal condyle causes damage to central extensor slip
Term
Volar PIP Dislocation: ulnar or radial volar displacement?
Definition
condyle buttonholes through central slip and lateral band
Term
Tx of volar PIP dislocations?
Definition
Closed reduction
PIP immobilized in full extension
Term
What is a Bennett Fx?
Definition
Intraarticular fx at the base of the 1st metacarpal. A single volar ulnar fragment fractured
Term
What is a Rolando Fracture?
Definition
T-condylar fx to base of the 1st metacarpal
POOR PROGNOSIS
Term
What is Gamekeeper's Thumb?
Definition
Instability of MCP joint due to insufficent UCL of thumb
Term
Mechanism of injury for Gamekeepers thumb?
Definition
Valgus stress/force across the thumb joint
Term
Gamekeeper's thumb is also called?
Definition
Skiiers thumb due to high incidence in skiiers who had fallen and ski pole had torn UCL
Term
UCL resists ____ applied forces.(direction)
Definition
Radially applied forces
Term
Ex of radially applied forces?
Definition
pinching
holding large objects
Term
Tear in UCL allows?
Definition
Weakening of key pinch grip

Volar subluxation of proximal phalanx
Term
Patient Presentation of UCL tear?
Definition
Pain swelling and ecchymosis on ulnar side of thumb

Small lump over ulnar side (steener lesion)

Hx of valgus injury
Term
What is stener lesion?
Definition
entrapment of torn UCL by adductor aponeurosis
Term
Treatment of UCL injury?
Definition
If stable= immobilization in a short arm cast with a tumb spica for 4 weeks

Unstable= operative tx
Term
What is Bowler's Thumb?
Definition
Digital Nerve Compression Injury (compression neuropathy) of ulnar digital nerve of the thumb
Term
Mechanism of Injury for Bowler's Thumb?
Definition
perineural or neuroma-type formation on the ulnar digital nerve secondary to repeated pressure from thumbhole of bowling ball
Term
Patient presentation of Bowler's Thumb?
Definition
Painful mass at base of the thumb
Paresthesias in the thumb
Positive Tinel's sign
Term
Treatment for Bowler's thumb?
Definition
PRICE
Thumbshell splint
Backsetting of thumb hole to increase thumb extension and ABD
Full insertion of thumb into thumbhole
Term
Dupuytren's Contracture
Definition
Contracture secondary to Dupuytren's disease

Can be confined to a single digit or involve multiple digits
Term
Palmar and digital contractures of the ring and little finger are the most common in Dupuytren's
Definition
Term
Surgical intervention is necessary if the contracture has reached ____ MCP contracture and ____ PIP contracture
Definition
30 MCP and 15 PIP
Term
When is a PIP joint arthroplasty indicated?
Definition
healthy MCP
Term
When is a MCP joint arthroplasty indicated?
Definition
patients with RA
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