CHT Exam Review UPDATED ACTUAL Exam Questions and
CORRECT Answers
Keinbock's disease - (ANSWERS)Lunate AVN !@#$%%%%%
%%%%%%
Preiser's Disease - (ANSWERS)AVN of scaphoid
Proximal scaphoid has less vasculature. Prox fx 6 wk immob. Scaphoid nonunion advanced
collapse wrist may occur w scaphoid fx
Lumbricals - (ANSWERS)Moving origins
Lumbricle 3&4: ulnar nerve
Lumbricle 1&2: median nerve
Opponens pollicis - (ANSWERS)O: trapezium n transverse carpal lig
Inserts along the body of the first metacarpal and rotates the thumb medially
N: recurrent branch of median nerve
Volar interossei - (ANSWERS)Addicts the thumb, index, ring, small fingers
Ulnar nerve
Adductor pollicis - (ANSWERS)Adducts thumb to palm, gives power for grasping, inserts into
extensor mechanism to assist the IP joint of the thumb to O deg of ext
Strongest intrinsic muscles
Interossei - (ANSWERS)Inserts on the medial or lateral aspects of the proximal phalanx into the
lateral band of extensor mechanism
Ulnar nerve innervation
Abductor digiti minimi - (ANSWERS)Increases span of grasp and assists w flexion of the 5th
MCP joint
Abductor pollicis brevis - (ANSWERS)Originates from trapezium & transverse carpal ligaments
and inserts on proximal phalanx & extensor mechanism of thumb helps extend IPJ to 0deg ext
Palmaris brevis - (ANSWERS)Wrinkles skin of ulnar side of palm
Opponens digiti minimi - (ANSWERS)Rotates n draws 5th MC anteriorly
1st dorsal interossei - (ANSWERS)Assists with thumb adduction and plays a significant role in
writing and typing
MCP collateral ligament - (ANSWERS)W MCP extension ligament is loose, w MCP flexion is
tighten prevents lateral shift of digits during flexion
,CHT Exam Review UPDATED ACTUAL Exam Questions and
CORRECT Answers
Quadrangular space - (ANSWERS)Bordered by teres minor superiorly, teres !@#$%%%%%major inferiorly,
%%%%%%
humerus laterally, tricep medially, axillary nerve and posterior circumflex artery pass thru this
Steindler procedure - (ANSWERS)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 - (ANSWERS)Biceps to
tricep tendon transfer. Still have brachialis and supinators so bicep can be spared.
Space of poireir - (ANSWERS)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 - (ANSWERS)Tests supraspinatus and infraspinatus. ER to near full then abd
to 20deg, release if lag then supraspinatus tear
Drop arm test - (ANSWERS)Tests infraspinatus, ER near full then abd to 90 deg, release if lag
then tear in infraspinatus
Flexor digitorum profundus - (ANSWERS)Small/ring : Ulnar nerve innervated.
Flexor pollicis brevis - (ANSWERS)Deep head innervated by ulnar nerve
Oblique retinacular ligament - (ANSWERS)Landsmeer's ligament, originates volar aspect of pp,
inserts on extensor tendon dorsal axis of DIPJ, helps w PIP flex w DIP ext
If contracted in extension DIP is unable to flex contributes to boutonniere def
Swan neck deformity - (ANSWERS)
Boutonnière deformity - (ANSWERS)
Lacertus Fibrosus - (ANSWERS)Bicepital apneurosis. Tendon from bicep brachii, tighten w
pronation. Active flexion w pronation may contribute to compression of median nerve at LF
Hook of hamate fracture - (ANSWERS)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 - (ANSWERS)Pronator teres, flexor carpi radialis/ulnaris, flexor
digitorum superficialis, palmaris longus
, CHT Exam Review UPDATED ACTUAL Exam Questions and
CORRECT Answers
Arcade of Froshe - (ANSWERS)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 - (ANSWERS)Roof is formed by acruate ligament of osborne and investing fascia
of FCU Roof slacks w extension and tightens in flexion
Ulnar nerve - (ANSWERS)1site of compression: as pierces medial intermuscular spetum at
level of coracobrachialis mm. Nerve passes thru acrade of struthers to formally enter cubital
tunnel.
High ulnar N injury w intrinsic loss n 2ndary loss of 4 n 5 th FDP loss of 60-80% of grasp occurs
Cubital tunnel syndrome: numbness in 4/5th digits, intrinsic weakness (1st webspace 1st
dorsal int) and ulnar side pain
Median nerve - (ANSWERS)Enters forearm thru anticubital fossa innervating pronator teres,
FCRL palmaris Longus, FDS,. Nerve bifurcates giving rise to anterior interosseous nerve
innervating flexor pollicis longus n flexor digitorum profundus(2/3) index n long. And pronator
quadratus. Terminal ain is carpal sensory branch. Main brach enters hand thru carpal tunnel
innervating Abd PB, OP, FPB, lumbricle 1/2 index middle
Carpal tunnel: nocturnal pain
Pronator syndrome: no muscle weakness. Pain n parathesia in forearm, thumb, index
Splint in neutral wrist w 2deg flexion and 3 def ulnar dev
Lumbricles occupy carpal tunnel w finger flexion, mcpj block at 20-40 deg will decrease
pressure of lumbricle sin carpal tummel and and decrease FDP excursion
AIN syndrome: no parathesia only motor. Pain proximal volar forearm. Dif w fine motor
Radial Nerve - (ANSWERS)Tricep, anconeus, brachradialis, ECRL. Then EVRB. Bifurcates into
sensory and PIN: supinator, ED,EDM, ECU, Abd PL, EPL, EPB, EI. Compression: arcade of froshe
covering supinator compression of PIN. Sensory nerve compression as it exits fascia adjacent
to brachiradialis tendon
Horners syndrome - (ANSWERS)Occurs w loss of sympathetic ganglionic function after
avulsion of T1 nerve root and is recognized by meiosis(papillary constriction),
endophthalmas(insert orbit), ptosis(droppy eye lid), anhydrosis (dry eye) due to distuption of
sympathetic outflow from and to the head and neck from sympathetic ganglion of T1 level
Poland syndrome - (ANSWERS)Aplsia of pec mj, brachydactyly, syndactyly of digits and
hypoplasia of hand.
Aperts syndrome - (ANSWERS)Craniofacial deform n complex syndactyly hand n feet
CORRECT Answers
Keinbock's disease - (ANSWERS)Lunate AVN !@#$%%%%%
%%%%%%
Preiser's Disease - (ANSWERS)AVN of scaphoid
Proximal scaphoid has less vasculature. Prox fx 6 wk immob. Scaphoid nonunion advanced
collapse wrist may occur w scaphoid fx
Lumbricals - (ANSWERS)Moving origins
Lumbricle 3&4: ulnar nerve
Lumbricle 1&2: median nerve
Opponens pollicis - (ANSWERS)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
Volar interossei - (ANSWERS)Addicts the thumb, index, ring, small fingers
Ulnar nerve
Adductor pollicis - (ANSWERS)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 - (ANSWERS)Inserts on the medial or lateral aspects of the proximal phalanx into the
lateral band of extensor mechanism
Ulnar nerve innervation
Abductor digiti minimi - (ANSWERS)Increases span of grasp and assists w flexion of the 5th
MCP joint
Abductor pollicis brevis - (ANSWERS)Originates from trapezium & transverse carpal ligaments
and inserts on proximal phalanx & extensor mechanism of thumb helps extend IPJ to 0deg ext
Palmaris brevis - (ANSWERS)Wrinkles skin of ulnar side of palm
Opponens digiti minimi - (ANSWERS)Rotates n draws 5th MC anteriorly
1st dorsal interossei - (ANSWERS)Assists with thumb adduction and plays a significant role in
writing and typing
MCP collateral ligament - (ANSWERS)W MCP extension ligament is loose, w MCP flexion is
tighten prevents lateral shift of digits during flexion
,CHT Exam Review UPDATED ACTUAL Exam Questions and
CORRECT Answers
Quadrangular space - (ANSWERS)Bordered by teres minor superiorly, teres !@#$%%%%%major inferiorly,
%%%%%%
humerus laterally, tricep medially, axillary nerve and posterior circumflex artery pass thru this
Steindler procedure - (ANSWERS)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 - (ANSWERS)Biceps to
tricep tendon transfer. Still have brachialis and supinators so bicep can be spared.
Space of poireir - (ANSWERS)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 - (ANSWERS)Tests supraspinatus and infraspinatus. ER to near full then abd
to 20deg, release if lag then supraspinatus tear
Drop arm test - (ANSWERS)Tests infraspinatus, ER near full then abd to 90 deg, release if lag
then tear in infraspinatus
Flexor digitorum profundus - (ANSWERS)Small/ring : Ulnar nerve innervated.
Flexor pollicis brevis - (ANSWERS)Deep head innervated by ulnar nerve
Oblique retinacular ligament - (ANSWERS)Landsmeer's ligament, originates volar aspect of pp,
inserts on extensor tendon dorsal axis of DIPJ, helps w PIP flex w DIP ext
If contracted in extension DIP is unable to flex contributes to boutonniere def
Swan neck deformity - (ANSWERS)
Boutonnière deformity - (ANSWERS)
Lacertus Fibrosus - (ANSWERS)Bicepital apneurosis. Tendon from bicep brachii, tighten w
pronation. Active flexion w pronation may contribute to compression of median nerve at LF
Hook of hamate fracture - (ANSWERS)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 - (ANSWERS)Pronator teres, flexor carpi radialis/ulnaris, flexor
digitorum superficialis, palmaris longus
, CHT Exam Review UPDATED ACTUAL Exam Questions and
CORRECT Answers
Arcade of Froshe - (ANSWERS)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 - (ANSWERS)Roof is formed by acruate ligament of osborne and investing fascia
of FCU Roof slacks w extension and tightens in flexion
Ulnar nerve - (ANSWERS)1site of compression: as pierces medial intermuscular spetum at
level of coracobrachialis mm. Nerve passes thru acrade of struthers to formally enter cubital
tunnel.
High ulnar N injury w intrinsic loss n 2ndary loss of 4 n 5 th FDP loss of 60-80% of grasp occurs
Cubital tunnel syndrome: numbness in 4/5th digits, intrinsic weakness (1st webspace 1st
dorsal int) and ulnar side pain
Median nerve - (ANSWERS)Enters forearm thru anticubital fossa innervating pronator teres,
FCRL palmaris Longus, FDS,. Nerve bifurcates giving rise to anterior interosseous nerve
innervating flexor pollicis longus n flexor digitorum profundus(2/3) index n long. And pronator
quadratus. Terminal ain is carpal sensory branch. Main brach enters hand thru carpal tunnel
innervating Abd PB, OP, FPB, lumbricle 1/2 index middle
Carpal tunnel: nocturnal pain
Pronator syndrome: no muscle weakness. Pain n parathesia in forearm, thumb, index
Splint in neutral wrist w 2deg flexion and 3 def ulnar dev
Lumbricles occupy carpal tunnel w finger flexion, mcpj block at 20-40 deg will decrease
pressure of lumbricle sin carpal tummel and and decrease FDP excursion
AIN syndrome: no parathesia only motor. Pain proximal volar forearm. Dif w fine motor
Radial Nerve - (ANSWERS)Tricep, anconeus, brachradialis, ECRL. Then EVRB. Bifurcates into
sensory and PIN: supinator, ED,EDM, ECU, Abd PL, EPL, EPB, EI. Compression: arcade of froshe
covering supinator compression of PIN. Sensory nerve compression as it exits fascia adjacent
to brachiradialis tendon
Horners syndrome - (ANSWERS)Occurs w loss of sympathetic ganglionic function after
avulsion of T1 nerve root and is recognized by meiosis(papillary constriction),
endophthalmas(insert orbit), ptosis(droppy eye lid), anhydrosis (dry eye) due to distuption of
sympathetic outflow from and to the head and neck from sympathetic ganglion of T1 level
Poland syndrome - (ANSWERS)Aplsia of pec mj, brachydactyly, syndactyly of digits and
hypoplasia of hand.
Aperts syndrome - (ANSWERS)Craniofacial deform n complex syndactyly hand n feet
