Peds Ortho Flashcards
Kids periosteum vs. adults
metabolically more active (promotes callus formation, remodeling ability)
thicker and more durable (less likelihood of displacment, unique fracture presentations: buckle/torus, greenstick, plastic deformation/bowing)
Apophysis
bony prominences arising from separate ossification centres; (growth plates that don’t add to length of bone)
fibrocartilage, fusion over time, site of tendon or ligament attachment, prone to overuse w/ inflammation or avulsion injuries
Occult fractures
toddler’s fracture
salter-harris I
some non-displaced elbow fractures
stress fractures
Growth plate aka
physis
SALTER harris levels
I: seperate (through physis) II: Above (metaphysis) III: Lower (epiphysis) IV: through (both metaphysis and epiphysis) V: Reduced (crush of growth plate)
Best prognosis saltr
I
Worst prognosis saltr
V (reduced)
Slipped fracture: type 1
seperation through physis
Prognosis: excellent
Rx: non-operative management
Type 2: Above
fracture through part of physis that extends through metaphysis
Prognosis: excellent
Rx: likely non-operative
Type 3: Lower
fx through part of physis that extends through epiphysis, often involving the joint space
Prognosis: often unstable
Rx: +/- operative
Type 4: through
through metaphysis, physis and epiphysis
Prognosis: unstable, can lead to LLD
Rx: +/- operative
Type 5: Reduced (ER)
crush injury to physis
Prognosis: unstable, can lead to LLD
Rx: +/- operative
uncommon, high impact
Elbow ossification centers
(CRITOE)
- Capitellum
- Radial head
- Internal (medial) epicondyle [easily missed]
- Trochlea
- Olecranon
- External (lateral) epicondyle
Fat Pad Sign
bleeding from bone into joint (aka sail sign) [dark shadow around bone]
Most common pediatric elbow fracture
supracondylar humeral fractures
Supracondylar humeral fractures
90% occur <10 yo
most common pediatric elbow fracture
MOI supracondylar humeral fx
fall from moderate height
FOOSH: typically w/ hyperextension
Clinical presentation of supracondylar humeral fx
swelling, pain, +/- deformity
NV exam critical: median nerve (anterior interosseous nerve)
Nerve concern for supracondylar humeral fx
median nerve: AIN (anterior interosseous nerve)
Dx supracondylar fracture
x-ray: AP, LATERAL!!!, & obliques
- anterior humeral line should intersect the capitellum
Types of supracondylar fracture
type 1
type 2
type 3: urgent, wake up to do surgery right away, increased risk of NV damage
Management of supracondylar fx
Type I/II: splint w/ light overwrap
- avoid elastic bandages when possible
- sling, NSAIDs, elevation
- refer to ortho, +/- reduction for type II (immobilization x 3 weeks)
Type III or NV concern: emergent ortho consult; CRPPF: closed reduction percutaneous pin fixation; open reduction
Lateral humeral condyle fx presentation
soft tissue swelling concentrated to lateral aspect of elbow; TTP overal lateral condyle
fx may be subtle: may only appear as SMALL SLIVER on imaging due to large cartilaginous portion
Small threshold for surgery
Dx of lateral humeral condyle fx
AP, lateral, and INTERNAL OBLIQUE!
MRI if needed
Management of lateral humeral condyle fx
emergent referral if displaced >2mm on internal oblique view
Sling, sling, NSAIDs
ortho: casting vs surgery
- immobilize 6 weeks
- open reduction w/ screw fixation
HIGH RISK OF COMPLICATIONS
Medial humeral epicondyle fx MOI
muscle attachment avulsion (throwing athletes and gymnasts; “POP”)
FOOSH w/ arm fully extended
secondary to posterior elbow disolcation
Presentation of medial humeral epicondyle fx
localized pain
pain w/ resisted wrist flexion
ulnar nerve dysfunction
Dx of medial humeral epicondyle fx
ap, later and EXTERNAL oblique
comparison views if needed
R/o incarceration of fragment in joint (advanced imaging may be needed)
Management of medial epicondyle fx
emergent if entrapped fragment
splint (INCLUDING WRIST), sling
NSAIDs
ortho: short term immbolization vs open fixation
Complications of medial epicondyle fx
ulnar nerve palsy
nonunion
angular deformity
decreased ROM
radial neck fx presentation
TTP overal radial head/neck
pain w/ supination/pronation»_space; flexion/extension
Young children may complain of “wrist pain”
Pain w/ flexion
medial humeral epicondyl
Pain w/ pronation/supination
radial neck fx
Internal oblique view
lateral epicondyle fx
external oblique view
medial epicondyl fx
Dx for radial neck fx
ap, lateral, external oblique (flatten head of radius)
Clinical if radial head not ossified (3-5 yo)
Management of radial neck fx
immobilize including wrist
sling
NSAIDs
ortho: cast vs. surgery
Complications of radial neck fractures
premature physeal closure
loss of ROM
nonunion
Nursemaid’s elbow
subluxation of radial head
MOI of nursemaid’s elbow
> 80% b/w 1-3 YO
MOI: sudden pull of pronated arm
Presentation of nursemaid’s elbow
arm either fully extended or slightly flexed and pronated
overall refusal to use arm but may use fingers
mild pain over radial head
pain increase w/ attempt to supinate*
evaluate entire extremity
imaging usually not required
pain increases w/ supination
nursemaid’s elbow
Management of nursemaid’s elbow
reduction by either:
- Hyperpronation w/ pressure over radial head *
- Supination, flexion w/ pressure over radial head
How to test if reduction worked in nursemaid’s elbow
“lollipop/popsicle test”
Wrist fx causes
FOOSH
direct trauma
Most common wrist fx
distal radius typically involved at metaphysis
+/- unlar involvement
Presentation of wrist fx
point tenderness
swelling
ecchymosis
Dx of wrist fx
AP, Lat, +/- obliq
SH I often clinical dx w/o initial radiographic finding
Management of wrist fx
emergent w/ significant deformity or NV compromise
Splint & NSAIDs
Ortho: cast, +/- reduction vs. surgery
Presentation of femur fx
hx of trauma
pain in groin or buttock
unable to bear weight/walk
proximal femus fx pt will hold leg in slight adduction and external rotation (may see shortening of limb)
- R/O child abuse - 70% of these in kids <1 YO is from abuse
Dx of femur fx
xray entire length of femur
Management of femur fx
hip spica cast vs. surgery