Hand
Central slip disruption leads to this finger deformity
Boutonniere Deformity
EHL
Ways to increase stability of an external fixator (name at least 5)
Most common cause of PJI in shoulder arthroplasty?
A) Aerobic gram positive bacillus
B) Aerobic gram negative bacillus
C) Aerobic gram positive coccus
D) Anaerobic gram positive bacillus
D) Anaerobic gram positive bacillus
Describe the deformity in Congenital Talipes Equinovarus
"CAVE"
Demonstrate intrinsic tightness on exam
Cannot passively flex IPs while MCPs are extended
70F with gait instability and hand clumsiness with MRI demonstrating C4-C6 central stenosis and 13 degrees of kyphosis. Treatment?
ACDF C4-C6
Acetabular fracture most commonly associated with a sciatic nerve palsy?
TPW
How to decrease chances of scapular notching
Add to glenoid: Inferior tilt, inferior translation, and lateral offset
5M weighing 40kg sustains a transverse femoral shaft fracture. Treatment of choice?
Name the lunate deformity in VISI and ligament disrupted
Lunate flexed, LT ligament disrupted
While reducing a sagittal plane deformity during a spine deformity case, you notice a 40% decrease in amplitude of transcranial MEPs and a 5% increase in latency. What do you do?
Proceed with case
50% dec in amplitude or >10% change in latency or >100V increase in threshold
Check anesthesia, reverse maneuver, wake up test
After fixing radial head, capsule around small coronoid fragment, LUCL, and MUCL, the terrible triad elbow fx/dl that you are fixing is still unstable...what's your next step?
Ex fix or hinged fixator
Treatment for young laborer with chronic massive rotator cuff tear with fatty infiltration of supra and infra and no GH arthritis?
Lat Dorsi transfer
Name that diagnosis: Radial clubhand + heart abnormality
Holt-Oram Syndrome
Deforming forces on proximal phalanx fracture
Interossei flex prox frag
Central slip extends distal frag
Combined: apex volar angulation -> extensor lag
LL-PI mismatch > 10
Describe the Pipkin classification for femoral head fractures
I: NWB portion of head
II: WB portion of head
III: assoc'd FNFx (High risk of fixation failute & AVN)
IV: assoc'd tab fx
A collegiate pitcher sustains a MUCL injury of his throwing arm confirmed by MRI. What surgical technique is indicated?
A) Primary repair with braided suture
B) Primary repair with non braided suture
C) Reconstruction with figure of 8 technique
D) Reconstruction with using docking technique
D) Reconstruction with using docking technique
Describe the management of AIS (in relation to curve size and treatment)
AIS: age 10-18
Vaughan Jackson Syndrome d/t to RA.
Progressive destruction of DRUJ leads to dorsal subluxation of ulna and attritional extensor tendon rupture
Name the 3 types of vertebral column osteotomies and the amount of correction achieved with each one
Smith-Pete: 10
PSO: 35
VCR: >45deg
Describe the blocks to reduction in an irreducible subtalar dislocation (medial and lateral)
Medial (lateral structures interposed): EDB, peroneals, T-N capsule
>more commonLateral (medial structures interposed): PTT, FHL
>more commonly openDescribe how to determine if a humeral head lesion is on/off track
If HSI is < glenoid track: on track
If HSI is > glenoid track: off track
On track: HH lesion does not engage
Off track: HH lesion does engage
Glenoid track= 0.83(inf glenoid D)-glenoid bone loss
HSI: width of the Hill-Sachs lesion from its medial aspect to the rotator cuff insertion
What are risk factors for curve progression in infantile idiopathic scoliosis?
Cobb angle >25
RVAD >20
Phase 2 rib