Wrist Flashcards
(20 cards)
When did synthes first launch it’s distal radius plates?
1990’s
What is the most commonly used plate for distal radius fractures?
VA LCP two-Colomn distal radius plate
What is the radial inclination achieved in the lateral view with VA LCP distal radius plates?
20-23’
What are the joints of the wrist?
- radiocarpal joint
- ulnarcarpal joint
- distal radioulnar joint
- schaphotrapeziotrapezoidal joint
What is the VA-LCP extra long volar distal radius plate mainly used for?
For intra-articular fractures extending into the diaphysis
What is the two Colomn plate mainly used for?
It is used for a wide range of distal radius fracture pattern
What is the volar rim plate?
It is designed to sit more distal on the radius for difficult distal fractures. Little ears that can be contoured
What are the dorsal plates for?
Treatment of dorsally displaced fractures
How many different plates are there available?
66 titanium and 66 stainless steel = 132 options
What width does the VA-LCP two colomn DRP come in?
- 6 hole 19.5mm
- 6 hole 22mm
- 7 hole 25.5mm
How does the design reduce the risk of flexor tendon or irritation?
The screw heads do not protrude at any angle of insertion. And the plate since nicely below the watershed line
How many holes does the long shaft have?
It comes in 7, 10 and 13 shaft holes
How many different dorsal radius plates are there?
20 different plate shapes
How does the VA-LCP DR address AO’s guidelines for internal fixation?
Anatomic reduction- has VA technology which allows screws to deviate in their trajectories for various fracture patterns
Stable fixation- locking holes create a fixed locked construct providing angular stability
Preservation of blood supply- limited contact plate design reduces bone to plate contact, reducing periosteum trauma
Early, active immobilisation- promotes the best environment for bone healing, return to optimal function
What is the indications for the distal radius plates?
For the fixation of intra and extra articular fractures and osteomities of the distal radius.
What size K wires are used?
1.25mm
What size cortex screws are used with what drill bit?
- 4mm cortex with a 1.8mm drill bit
2. 7mm cortex has a 2mm drill bit (long shaft plates)
What size are the locking screws and what drill bit?
2.4mm with 1.8 drill bit
What are the carpels?
Scaphoid Trapezium Trapezoid Lunate Capitate Hamate Pisiform Treqetrum
What are the different sizes of the two colomn volar plates?
They come in narrow, standard and wide.
Each ranging from 2-5 holes
Narrow and standard have 6 holes across, wide has 7
