Week 6 Flashcards
What is Flexor Tendon Injury of the finger?
Presents with DIP flexion loss
What is another name for flexor tendon injury of the finger?
Jersey finger
What does flexor tendon injury of the finger result from?
A forceful hyperextension of the DIP joint with the FDP in maximal contraction
Example jersey ripped out of tackler’s grip
Which is the primary flexor of the index, middle, ring and small finger?
Flexor digitorum profundus
Where does the flexor digitorum profundus insert?
Distal phalanx
Where does the flexor tendon injury usually rupture?
Tendon rupture occurs at the bony insertion site
What is the orthotic treatment for Jersey finger?
Buddy system
WHO-only use when buddy system flexion is painful
What are other names for ulnar collateral ligament injury?
gamekeeper’s thumb
skier’s thumb
What does the ulnar collateral ligament do?
Supplies structural lateral support of the thumb for fine motor functional activities and weight bearing tasks
What is the common cause of ulnar collateral ligament injury?
A severe, sudden valgus force placed on the already abducted thumb
What is ulnar collateral ligament injury?
Ulnar collateral ligament ruptures at its distal insertion site into the base of the proximal phalanx
What are the common sports associated with ulnar collateral ligament injury?
Football
Wrestling
Skiing
What is the orthotic treatment of ulnar collateral ligament injury?
Thumb spica orthosis that encases the IP and MP joints with the thumb in slight adduction
How long does the patient immobilize the ulnar collateral ligament injury?
6-10 weeks
What treatment occurs after 8-12 weeks of ulnar collateral ligament injury?
Physical therapy with progression into lateral pinch strengthening and oppositional strengthening
What makes up the traingular fibrocartilage complex?
Ulnotriquetral ligament ulnolunate ligament plamar radioulnar ligament articular disc dorsal radioulnar ligament (Triangular fibrocartilage, palmar and dorsal radioulnar ligaments, and the ulnar carpal ligaments)
What does TFCC stand for?
Triangular fibrocartilage complex
What is the centerpiece of the trianguar fibrocatilage complex?
The articular disc
How common is TFCC injury?
Not common-1 every few years
What is TFCC injury?
TFCC avulsion from distal sigmoid notch
Where does the disc originate and insert for the TFCC?
Originates from the sigmoid notch of the distal radius
Inserts into the fovea at the base of the ulnar stylod process
What merges to create the TFCC?
Volar fibers of the articular disc
ulnolunate ligament
ulnotriquetral ligament
What is the TFCC critical in supporting?
The ulnar carpus (Carpal bones that articulate with the ulna)
What does the TFCC act as?
A decelerator and shock absorber when conducting the radial and ulnar deviation activities