Orthopaedic Trauma Day 3 Flashcards
what metacarpal bone has the highest tolerance for fractures and which has the lowest tolerance?
highest tolerance = thumb
lowest tolerance = small finger
what is the most common metacarpal fracture?
5th metacarpal bone fracture (little finger)
defined as a small finger metacarpal neck fracture
boxer’s fracture
what should we evaluate if a patient has a possible boxer’s fracture?
rotation/scissoring
what is the non-op treatment for a 5th metacarpal fracture/boxer’s fracture? (2)
closed reduction
ulnar gutter splint
what is the operative treatment for a 5th metacarpal bone fracture/boxer’s fracture?
open reduction internal fixation (ORIF)
when would we want to operate on a 5th metacarpal bone fracture? (4)
open
intra-articular
rotational deformity
>60 deg of angulation
identify fracture
boxer’s fracture (neck)
identify
5th metacarpal bone fracture with volar angulation
identify
5th metacarpal shaft fracture with volar displacement
what are the most common phalanx fractures?
distal phalanx
what are the least common phalanx fractures?
proximal phalanx
a phalanx fracture most commonly occurs in which finger?
small finger
where do most distal phalanx fractures occur?
tuft of phalanx
distal phalanx fractures are most often associated with what?
nail bed/matrix laceration
very common injury in which nailbed can be either crushed, lacerated, or amputated
tuft fracture
identify
tuft fracture
identify
shaft fracture of distal phalanx
identify
volar base fracture
identify
dorsal base fracture
how should base fractures be treated?
by hand surgeon
which fractures of the phalanx often have dorsal or volar displacement d/t insertion of FDS and FDP tendons, as well as shortening and rotation of finger; typically requires surgical fixation?
middle and proximal phalanx fractures
what is the typical treatment for middle and proximal phalanx fractures?
surgery
what non-op management can be used for middle and proximal phalanx fractures? (2) when can we use this treatment? (2)
buddy tape or finger splint
no head or base involvement
no rotation or displacement
identify
proximal phalanx shaft fracture
identify
proximal phalanx fracture of ring finger
identify
tuft fracture to ring finger
what 2 locations do elderly patients most commonly have hip fractures?
femoral neck
intertrochanteric
what 2 locations do young patients most commonly have hip fractures?
acetabulum
proximal femur
which hip fracture is typically associated with hip dislocations?
femoral head fractures
which 2 hip fractures have a high risk of avascular necrosis (AVN)?
femoral head fracture
femoral neck fracture
what imaging is required for further evaluation of femoral head fracture?
CT
non-op vs operative treatment of femoral head fractures depends on what? (2)
location
fracture displacement