Knee Complex Flashcards
What is unhappy triad
An injury where there was a force applied on the lateral side which caused an excessive Valgus force
Unhappy Triad Ligaments affected
Medial Collateral ligament
media meniscus
Anterior Cruciate Ligament
What does Medial Collateral Ligament limit
Valgus Force
25 degrees of flexion: Almost 80% protection against valves stress
Proximal attachment of MCL
Medial Epicondyle of Femur
Distal Attachment of MCL
Ant: Middle superior aspect of medial tibia posterior to pes anserine
Post: distally to Medial Posterior joint capsule, medial meniscus and tendon of semimembranosus muscle
MCL ANTERIOR PORTION IS TAUT DURING
FLEXION
MCL POSTERIOR PORTION IS TAUT DURING
EXTENSION
LATERAL COLLATRAL LIGAMENT LIMITS
VARUS FORCE
KNEE EXTENSION
PROXIMAL ATTACHMENT OF LCL
LATERAL EPICONDYLE OF FEMUR
DISTAL ATTACHMENT OF LCL
HEAD OF FIBULA AND MERGES WITH THE TENDON OF BICEPS FEMORIS
OBLIQUE POPLITEAL LIGAMENT PROXIMAL ATTACHMENT
POSTEROMEDIAL TIBIA NEAR SEMIMEMBRANOSUS INSERTION
DISTAL ATTACHMENT OF OBLIQUE POPLITEAL LIGAMENT
POSTEROLATERAL FEMUR NEAR LATERAL GASTROCNEMIUS HEAD
OBLIQUE POPLITEAL LIGAMENT LIMITS
HYPEREXTENSION ON POSTERIOR KNEE
ARCUATE POPLITEAL LIGAMENT LIMITS
HYPEREXTENSION AND ROTATIONAL FORCES
ACL LIMITS
ANTERIOR TRANSLATION OF TIBIA ON FEMUR
POSTERIOR TRANSLATION OF FEMUR ON TIBIA
HYPEREXTENSION
RESIST VALGUS VARUS AND AXIAL ROTATION
ACL PROXIMAL ATTACHMENT
ANTERIOR INTERCONDYLAR TIBIAL FOSSA BEHIND ANTERIOR ATTACHMENT OF MEDIAL MENISCUS
DISTAL ATTACHMENT OF ACL
POSTEROMEDIAL ASPECT OF LATERAL FEMORAL CONDYLE