OITE Review Flashcards
MRI indications scoli (5)
L thoracic curve Pain Neuro sx - asym abdominal reflex, hyper-reflexia Rapid progression Apical kyphosis
What factor is most predictive of predicting AIS progression?
Age = skeletal maturity
Risser sign
What is the most correlative XR finding for AIS progression?
Tanner whitehouse = hand XR
Bracing rules for AIS
<25 = nothing
<40 + skeletally mature = watch
Immature < 40 = brace (reduce risk surg 50% if bracing done at least 12hrs per day, compliance is MOST important factor for det prog to surgery)
If very skeletally immature and must fusion spine, do you do post or ant approach?
Ant to prevent crank shaft phenom
Delayed infx bugs (2) for AIS vs acute
P.acnes & S.epi (NOT aureus!!!)
Acute = aureus
Curve & age for infantile idiopathic scoli
LEFT thoracic
Age = <3yo
What is the measurement for infantile IS?
RVAD > 20 = high risk progression
Treat infantile IS
Body cast
RVAD>35 - MRI +/- growing rod (less effective the longer is in)
Don’t fuse b/c get alveolar aka pulm insuff
Which type of scoli is highest risk of neural axis involvement
Juvenile = 3-10yo
Think arnold chiari malform
What deform is the worst outcome for congenital scoli
Failure formation vs segmentation vs mixed Worst prog = 1. Uni lat var \+ CL hemi vert 100% risk progression GET MRI****
Which spine deform has highest risk neurologic compromise from surgery?
Congenital kyphosis
DMD inheritence
XL recessive - more common BOYS
- High creatine kinase
- Gower’s sign
What is a pars stress frx called? Most sensitive test?
Spondy-lo-lysis
SPECT = single proton…. = most sensitive
What level is most common spondy in kids?
L5-S1
- HAMSTRING tightness on exam
What is the most important determinant of pain and non-union for spondy (how they’ll do once they get it)
Slip angle >45 deg
VS PI - dets if you will get a spondy at all
How measure pelvic incidence
total of sacral slope + pelvic tilt
What is Scheurmann’s kyphosis
Idiopathic kyphosis - usual brace
Normal kyphosis in T spine 20-50deg
What is Klippel Feil
= abnormal cervical segmentation (AA fusion)
Sprengel’s deform on right - scapula is up with limited ROM
Deafness (the other one that isn’t paget)
Webbed neck
Trt = conservative, NO CONTACT SPORTS
AA instability
Down’s
JRA
Treat if >5mm EXCEPT Downs > 10mm b/c lig lax at baseline
What is the most common level for pseudo sublux
C2/3 - don’t have to do anything about it
Association w/ C1/2 rotary sublux
Think after retrophayngeal infx/URI
SCM spasm on SAME SIDE as chin (aka actue torticollis)
Association for sacral agenesis
Maternal diabetes
What disease has palpable SCM mass - treat and what to r/o
Cong muscular torticollis
PT + stretching
R/o DDH
RF DDH
Breech
Female (left side most common)
First born
Packaging disorders associated with DDH
Torticollis - SCM away from chin
Metatarsus adductus
When does O&B not helpful - what test do you use
6mo
Galeazzi test - does one leg look shorter than other when knees flexed
2 US findings for DDH
Alpha angle > 60 = normal Less means the tab is SHALLOW = bad (in adults alpha bigger is bad) Beta angle > 55 Image - White line = ilium - Muscle is LATERAL
When can you get XR for DDH
> 4mo - FH starts to ossify
What is normal AI and CEA
AI < 25 = normal
CEA < 25 = ABnormal
What are 4 things that might prevent hip reduction
Inverted labrum vs limbus
Lig teres
IP tendon
How treat stable vs unstable sublux hip?
Stable = watch Unstable = Pavlik
How treat dislocated or dislocate-able hip?
Non-reduce -> OR
Reduce -> Pavlik
Palvik - ant vs post strap roles & 2 comp of Pavlik
Ant strap - stop flexion (less than 90)
Too much - fem nerve palsy
Post strap - stop aBduction
Other comp = AVN (post sup retinacular art)
What is Pavlik disease?
Post acetabular wear - why check every week via US
Who can’t you use Pavlik?
NM kids - Pavlik works on your muscles to keep hip in place
What do you do for kids with DDH who are walking
Surg: open reduction // osteotomy
What are the 6 pelvic osteotomies for DDH
Salter Pemberton Triple Dega - CP young kid Shelf - salvage Chiari - salvage