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CHT Exam- Test Questions and Answers 100% Solved
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CHT Exam- Test Questions and Answers 100% Solved
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CHT Exam- Test Questions and Answers 100% SolvedDISI deformity Correct Ans-S-L injury - lunate extends Dorsally with the triquetrum; dorsal
S-L ligament is the strongest and vital for normal kinematics
VISI deformity Correct Ans-L-T injury - lunate flexes Volarly with the scaphoid
PIP flexion contractures: structures involved Correct Ans-Check rein ligaments, volar plate,
collateral ligament
Extensor tendon compartments Correct Ans-1. APL/EPB
2. ECRL/ECRB
3. EPL
4. EDC/EIP
5. EDM (5th digit)
6. ECU
Acute compartment syndrome: causes & symptoms Correct Ans-Causes: crush,
thermal/electrical burns
Symptoms: pain, paresthesias, paralysis, pulselessness (4 P's)
Often intrinsic minus hand
, CHT Exam- Test Questions and Answers 100% Solved
Increasing pressure = necrosis
Martin-Gruber anastomosis Correct Ans-MN/UN connection in the FA; intrinsic muscles
can be innervated by MN in case of UN injury
- RF/SF FDP out
Riche-Cannieu anastomosis Correct Ans-Occurs in palm - communicating branch between
deep branch of UN and recurrent branch of MN in thenar eminence
Berretini anastomosis Correct Ans-Connection between UN/MN common digital nerves
"Bear claw - rawr"
Medial collateral ligament (MCL): anterior oblique bundle Correct Ans-Medial epicondyle
to coronoid
Greatest constraint to valgus when elbow at 30-90 degrees
Injured in baseball pitchers
, CHT Exam- Test Questions and Answers 100% Solved
Medial collateral ligament (MCL): posterior oblique bundle Correct Ans-Medial epicondyle
to coronoid (below AOL)
Greatest constraint to valgus with elbow flexion > 90 degrees
Medial collateral ligament (MCL): transverse bundle Correct Ans-Below AOL and POL;
functionally insignificant to valgus restraint
Ulnar nerve - order of innervation Correct Ans-FCU - FDP (ring & small) - medial cutaneous
branch - ADM - ODM - FDM - ulnar lumbricals - palmar & dorsal interossei - FPB (deep) -
adductor pollicis
Radial nerve - order of innervation Correct Ans-Triceps - anconeus - BR - ECRL - ECRB (1/2
RN & 1/2 PIN) - PIN: supinator - EDC - EDM - ECU - APL - EPL - EPB - EIP
Median nerve - order of innervation Correct Ans-PT - FCR - PL - FDS (index thru small) -
AIN: FDP (index & middle) - FPL - PQ; palmar cutaneous branch - under flexor retinaculum:
APB - OP - FPB (superficial) - radial lumbricals
Order of sensory return Correct Ans-Pain and Temperature
30 Hz Vibration
Moving Touch
Constant Touch
, CHT Exam- Test Questions and Answers 100% Solved
256 Hz Vibration
Touch Localization
Two Point Discrimination
Stereognosis
Steindler procedure Correct Ans-Flexor pronator muscle-tendon transfer to promote elbow
flexion s/p C5/C6 BPI.
"Steindler.. which way to the beach?"
Quadrangular space Correct Ans-Axillary nerve and posterior circumflex humeral artery
Quadrigia phenomenon Correct Ans-Flexion contracture of involved digit as well as limited
flexion of adjacent digits; results if FDP advanced >1cm during repair (limits proximal
excursion of other FDP tendons)
Egawa's Sign Correct Ans-Ability to flex the LF, but cannot RD/UD; interosseous paralysis
(UN out)
(Egawa has road rage )
Guyon's canal Correct Ans-Contains UN and UA; borders of canal are hook of hamate &
pisiform
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