AO instruments and supplies Flashcards
Limited contact dynamic compression plates
Used to preserve blood supply to the underlying cortex
Dynamic compression plates
Has self-compresssing holes which interfres with the blood supply to the to the underlying cortex
Locking compression plates
Reconstruction plates
has notch edges so that it can be bent on the flat as well as conventional bending
used on complex anatomical structures
Anatomical plates
Compression
Neutralization
Buttressing
Bridging
tension band
Plates function
Cannulated
Cancellous
Cortical
Types of screws
To produce interfragmentary compression
To attach implants to the bone by compressing then=m into the bone surface
To attach implants to bone producing angular stability
To hold two bones in correct relationship-position screws
To lock an intramedullary nail to the cortices
To block movement of a main fragment around an IM nail-Poller screws
Purpose of screws
Cannulated
Cancellous
Cortical screws
Drill hole
Measure depth of hole
Tap (PRN)
Insert screw
State the four basic steps for screw insertion
I/H/D/R; Expose fracture site
Place reduction clamps and manipulate bone ends to reduce fracture and hold in place
Select appropriate plate PRN
Drill hole with guide and bit on power drill; measure depth; tap PRN; insert screw; repeat PRN
X-ray confirmation
I(antibiotic)/H/C/D and apply cast
State the sequence of a basic ASIF procedure
Drill bits
Drill guides for proper angle/off set
Tissue guards
Minimize tissue trauma
Depth gauge
T-handle and Taps
Screwdriver
Locking device for small screws
Plate benders
Use template to form to bone; then bend plate to match template
Bone/plate holding forceps
Identify basic AO instruments
