Flexor and Extensor Tendon UPDATED
ACTUAL Exam Questions and CORRECT
Answers
How would you describe the blood supply to the tendons? - CORRECT ANSWER - The
blood supply to the tendons is poor to fair a best. Blood supply is provided by vincula / small
vessels within the tendon sheathe, both proximal and distal to the chiasma of campers.
FDS has a common muscle belly for which fingers? - CORRECT ANSWER - Fingers I -
V.
The FDP has how many muscle bellies? - CORRECT ANSWER - 2 bellies, one portion
for II - III and one portion for IV-V bellies.
Do tendons heal on their own? - CORRECT ANSWER - Tendons have little vascular
supply, and therefore, will NOT heal on their own, unless minimally partially lacerated. When
partial, you rely on surrounding scar tissue to heal.
What is the Chiasma of Campers? - CORRECT ANSWER - Where FDP passes through
FDS on middle phalanx.
What is the order of vascular supply to tissue, from most to least? - CORRECT
ANSWER - Muscle, bone, tendon, & ligament
What are the flexor tendon zones of repair for the fingers? - CORRECT ANSWER - I - tip
of finger to distal portion of p2
II - PIP to the DPC (no man's land)
III - DPC to level of distal end of the carpal tunnel
IV - wrist level
V - forearm proximal to wrist level
, What are the flexor tendon zones of repair for the thumb? - CORRECT ANSWER - I - tip
of finger to IP joint
II - IP joint to the proximal MCP crease
III - thenar eminence
IV - wrist level
Flexor zones of hand - CORRECT ANSWER -
What are the 2 most important pulleys? - CORRECT ANSWER - A2 and A4
Trigger finger most commonly occurs between which 2 pulleys? - CORRECT ANSWER -
Between A1 and A2, a little mass forms and gets stuck when pulled through the pulley and gets
more swollen = clicking/popping of nodule. Most commonly occurs in ring finger.
When does primary tendon repair occur? - CORRECT ANSWER - Within 10-12 days,
optimal is within the first 2-3 days
A vast majority of rehab protocols for tendons suggest? - CORRECT ANSWER - Early
ROM, either early active, early passive, or a combination.
When is immobilization of a tendon repair necessary? - CORRECT ANSWER - It's
necessary with children, those with cognitive deficits, or those whom may be determined to be of
great risk when using an early mobilization protocol.
What are the benefits of an early mobilization protocol for tendons? - CORRECT
ANSWER - They heal faster, have greater tensile strength, allow for less scar adhesions,
and better excursion.
How long should you immobilize a tendon repair in kids? - CORRECT ANSWER -
Immobilize in cast (kids 3 weeks), kids over 10 immobilize longer.
ACTUAL Exam Questions and CORRECT
Answers
How would you describe the blood supply to the tendons? - CORRECT ANSWER - The
blood supply to the tendons is poor to fair a best. Blood supply is provided by vincula / small
vessels within the tendon sheathe, both proximal and distal to the chiasma of campers.
FDS has a common muscle belly for which fingers? - CORRECT ANSWER - Fingers I -
V.
The FDP has how many muscle bellies? - CORRECT ANSWER - 2 bellies, one portion
for II - III and one portion for IV-V bellies.
Do tendons heal on their own? - CORRECT ANSWER - Tendons have little vascular
supply, and therefore, will NOT heal on their own, unless minimally partially lacerated. When
partial, you rely on surrounding scar tissue to heal.
What is the Chiasma of Campers? - CORRECT ANSWER - Where FDP passes through
FDS on middle phalanx.
What is the order of vascular supply to tissue, from most to least? - CORRECT
ANSWER - Muscle, bone, tendon, & ligament
What are the flexor tendon zones of repair for the fingers? - CORRECT ANSWER - I - tip
of finger to distal portion of p2
II - PIP to the DPC (no man's land)
III - DPC to level of distal end of the carpal tunnel
IV - wrist level
V - forearm proximal to wrist level
, What are the flexor tendon zones of repair for the thumb? - CORRECT ANSWER - I - tip
of finger to IP joint
II - IP joint to the proximal MCP crease
III - thenar eminence
IV - wrist level
Flexor zones of hand - CORRECT ANSWER -
What are the 2 most important pulleys? - CORRECT ANSWER - A2 and A4
Trigger finger most commonly occurs between which 2 pulleys? - CORRECT ANSWER -
Between A1 and A2, a little mass forms and gets stuck when pulled through the pulley and gets
more swollen = clicking/popping of nodule. Most commonly occurs in ring finger.
When does primary tendon repair occur? - CORRECT ANSWER - Within 10-12 days,
optimal is within the first 2-3 days
A vast majority of rehab protocols for tendons suggest? - CORRECT ANSWER - Early
ROM, either early active, early passive, or a combination.
When is immobilization of a tendon repair necessary? - CORRECT ANSWER - It's
necessary with children, those with cognitive deficits, or those whom may be determined to be of
great risk when using an early mobilization protocol.
What are the benefits of an early mobilization protocol for tendons? - CORRECT
ANSWER - They heal faster, have greater tensile strength, allow for less scar adhesions,
and better excursion.
How long should you immobilize a tendon repair in kids? - CORRECT ANSWER -
Immobilize in cast (kids 3 weeks), kids over 10 immobilize longer.
