Knee Injuries Flashcards
(47 cards)
Origin and insertion of ACL
Origin: lateral condyle of the femur
Insertion: intercondyloid eminence of the tibia
Origin and insertion of PCL
Origin: posterior intercondylar area of the tibia
Insertion: medial condyle of the femur
Origin and insertion of MCL
Origin: medial epicondyle of the femur
Insertion: medial condyle of tibia
Origin and insertion of LCL
Origin: lateral epicondyle of the femur
Insertion: head of fibula
Origin and insertion of LCL
Origin: lateral epicondyle of the femur
Insertion: head of fibula
Function of MCL
Stabilises the knee from valgus force
Function of LCL
Stabilises the knee from varus force
Function of ACL
Stabilises the knee from anterior translation (opposes anterior draw test)
Function of PCL
Stabilises the knee from posterior translation
What surface anatomy corresponds to the MCL and LCL?
medial joint line and lateral join line
Function of MCL
Stabilises the knee from valgus force (opposes valgus stress test)
Function of LCL
Stabilises the knee from varus force (opposes varus stress test)
Function of ACL
Stabilises the knee from anterior translation (opposes anterior drawer test)
Function of PCL
Stabilises the knee from posterior translation (opposes posterior drawer test)
What surface anatomy corresponds to the MCL and LCL?
medial joint line and lateral join line
Hx of injury of MCL tear?
(valgus force) lateral blow/momentum to the knee while in fixed position
Sx of MCL tear?
Swelling, point tenderness over medial joint line
Px of MCL tear?
Positive valgus stress test
Dx of MCL tear?
a. Clinical - positive valgus stress test
b. MRI - most accurate test in Dx
Rx of MCL tear?
Isolated injury can be treated with immobilization via hinged cast.
Multiple or severe injuries are treated with surgical repair
Rx of MCL tear?
Isolated injury can be treated with immobilization via hinged cast.
Multiple or severe injuries are treated with surgical repair
Hx of LCL tear?
Medial blow (Varus position) or momentum to the knee while in fixed position
Sx of LCL tear?
Swelling, point tenderness over the lateral joint line
Px of LCL tear?
Positive varus stress test