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CHT Exam Review- Questions and Answers 100% Solved
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CHT Exam Review- Questions and Answers 100% Solved
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CHT Exam Review- Questions and Answers 100% SolvedSteindler procedure Correct Ans-Flexor pronator muscle tendon transfer to promote elbow
flexion. due to c5c6 brachial plexus injury.
C6 quad. What tendon transfer may be used to restore elbow extension Correct Ans-Biceps
to tricep tendon transfer. Still have brachialis and supinators so bicep can be spared.
Space of poireir Correct Ans-Weakness from the absence of ligamentous support between
capitate and lunate articulation. Bolar extrinsic ligaments for a V, lunate is able to dislocate w
high velocity injury
Extensor lag test Correct Ans-Tests supraspinatus and infraspinatus. ER to near full then
abd to 20deg, release if lag then supraspinatus tear
Drop arm test Correct Ans-Tests infraspinatus, ER near full then abd to 90 deg, release if
lag then tear in infraspinatus
Flexor digitorum profundus Correct Ans-Small/ring : Ulnar nerve innervated.
Flexor pollicis brevis Correct Ans-Deep head innervated by ulnar nerve
Oblique retinacular ligament Correct Ans-Landsmeer's ligament, originates volar aspect of
pp, inserts on extensor tendon dorsal axis of DIPJ, helps w PIP flex w DIP ext
,CHT Exam Review- Questions and Answers 100% Solved
If contracted in extension DIP is unable to flex contributes to boutonniere def
Swan neck deformity Correct Ans-
Boutonnière deformity Correct Ans-
Lacertus Fibrosus Correct Ans-Bicepital apneurosis. Tendon from bicep brachii, tighten w
pronation. Active flexion w pronation may contribute to compression of median nerve at LF
Keinbock's disease Correct Ans-Lunate AVN
Preiser's Disease Correct Ans-AVN of scaphoid
Proximal scaphoid has less vasculature. Prox fx 6 wk immob. Scaphoid nonunion advanced
collapse wrist may occur w scaphoid fx
Lumbricals Correct Ans-Moving origins
Lumbricle 3&4: ulnar nerve
Lumbricle 1&2: median nerve
Opponens pollicis Correct Ans-O: trapezium n transverse carpal lig
Inserts along the body of the first metacarpal and rotates the thumb medially
N: recurrent branch of median nerve
,CHT Exam Review- Questions and Answers 100% Solved
Volar interossei Correct Ans-Addicts the thumb, index, ring, small fingers
Ulnar nerve
Adductor pollicis Correct Ans-Adducts thumb to palm, gives power for grasping, inserts
into extensor mechanism to assist the IP joint of the thumb to O deg of ext
Strongest intrinsic muscles
Interossei Correct Ans-Inserts on the medial or lateral aspects of the proximal phalanx into
the lateral band of extensor mechanism
Ulnar nerve innervation
Abductor digiti minimi Correct Ans-Increases span of grasp and assists w flexion of the 5th
MCP joint
Abductor pollicis brevis Correct Ans-Originates from trapezium & transverse carpal
ligaments and inserts on proximal phalanx & extensor mechanism of thumb helps extend IPJ
to 0deg ext
Palmaris brevis Correct Ans-Wrinkles skin of ulnar side of palm
Opponens digiti minimi Correct Ans-Rotates n draws 5th MC anteriorly
, CHT Exam Review- Questions and Answers 100% Solved
1st dorsal interossei Correct Ans-Assists with thumb adduction and plays a significant role
in writing and typing
MCP collateral ligament Correct Ans-W MCP extension ligament is loose, w MCP flexion is
tighten prevents lateral shift of digits during flexion
Quadrangular space Correct Ans-Bordered by teres minor superiorly, teres major inferiorly,
humerus laterally, tricep medially, axillary nerve and posterior circumflex artery pass thru this
Hook of hamate fracture Correct Ans-Ulnar side pain w extension, ulnar deviation and
flexion of small ring finger. Pain distal to pisiform. Commonly neg on xray. Common w racket
sports, golf, baseball, using hand to close lids. Use ulnar gutter splint. Orif or excision
Common flexor origin muscles Correct Ans-Pronator teres, flexor carpi radialis/ulnaris,
flexor digitorum superficialis, palmaris longus
Arcade of Froshe Correct Ans-Common impingement site for PIN (radial tunnel stndrome)
Fibrous band that arises as a semi circular structure from tip of medial aspect of lateral epi.
Located at proximal edge of supinator
Cubital tunnel Correct Ans-Roof is formed by acruate ligament of osborne and investing
fascia of FCU Roof slacks w extension and tightens in flexion
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