LE Flashcards
Largest sesamoid bone
Sesamoid -develops within tendon
Patella
Only ligaments are attached
Talus
Valgus stress
MCL
Varus stress
LCL
Medial meniscus is usually damaged with
MCL
85% of stability that provides anterior translation of tibia on femur
ACL
Popping with swelling
Hemathrosis
ACL tear
Test for ACL
Lachman test 30 deg
Anterior Drawer 90deg
Pivot shift
Femoral canal
Lat to medial
Nerve-Artery-Vein-Empty-
Pes Anserine
Sartorius
Semitendinosus
Gracilis
Triangle of Doom (Lap Hernia)
Femoral nerve
Lat femoral cutaneous n
Femoral branch of genitofemoral n
Harvested as graft during facial nerve injury
Sural nerve
Compartment syndrome
Pain out of prop Paresthesia Pallor Pressure Pulselessness
Ankle stability keystone
Lateral malleolus
Fx of anterior glenoid in anterior shoulder disloc
Bankart fracture
Fx of 5th metacarpal neck
Boxer’s fx
Comminuted fx of 1st MCP base
Rolando’s
Blood supply of the head of the femur
Medial femoral circumflex artery (most important)
Artery to head of femur (obturator artery)
Lateral femoral circumflex artery
Main blood supply of head of femur in children
Artery to head of femur
Obturatory artery
Idiopathic avascular necrosis of the proximal femoral head in the child
Males > Females
Limp
Legg Calve Perthes Disease
Formerly called congenital dislocation of hip
Lacks development of acetabulum and femur
Common in first born females born in breech
+ Trendelenburg sign
Developmental dysplasia of hip
Test to dislocate the hip posteriorly
Barlow maneuver
Test to confirm hip dislocation by reducing acetabulum back to the cavity
Ortolani maneuver
Superior gluteal nerve palsy
Congenital dislocation of hip
Coxa vara
Trendelenburg sign
Common in young athletes
Fragmentation of tibial tuberosity (knobby knees)
OsgoodSchlatter disease
Anterior thigh muscles
Hip flexors and knee extensors
Innervated by
Femoral nerve
Iliopsoas
TFL
Sartorius
Quad fem
Medial thigh muscles
Adduct the thigh
Innervated by:
Obturator nerve
Pectineus Adductor longus Adductor brevis Adductor magnus Gracilis
Extensors of thigh
Flexors of the leg
Innervated by:
Sciatic nerve
Hamstring muscles
Adductor magnus
Adductor magnus inserts at
Linea aspera
Most common site of compartment syndome in leg
anterior compartment
Inc production of fluid
Inc pressure, dec venous return and dec arterial supply
Paresthesia between first and second toe
Compartment syndrome
30-45 mmHg pressure on anterior leg
> 45 mmHg pressure on anterior leg
Close monitoring
Surgery
Triangular fascial space in the superoanterior third of thigh
femoral triangle
Boundaries of femoral triangle
Superior: inguinal ligament
Medially: adductor LONGUS
Laterally: sartorius
Contents of femoral triangle
Femoral nerve and branches
Femoral sheath and content
Femoral artery
Femoral vein
NAV (lateral to medial)
Most common type of hernia
Indirect
Most common type of hernia in females
Indirect
Funnel shaped fascial tube formed by inferior prolongation of iliopsoas and transverse fascia of abdomen
Femoral sheath
Compartment of femoral sheath
Lateral: Femoral artery
Intermediate: Femoral vein
Medial: Femoral canal
Appears as a mass, tender in the femoral triangle
Weak femoral ring in the anterior abdominal wall that normally admits tip of 5th digit
More common in females
Femoral hernia
Upper opening of the femoral canal
Femoral ring
Neck of the femoral sac is always lateral and below the
pubic tubercle
Aka subsartorial canal
Fascial tunnel running from the apex of the femoral triangle to the adductor hiatus in the tendon of the adductor magnus muscle
Adductor canal
Hunter’s canal
Boundaries of adductor canal
Anterior: sartorius
Lateral: vastus medialis
Posterior and Medial: adductor longus and magnus
Contents of adductor canal
Femoral artery and vein
Saphenous NERVE
Nerve to vastus medialis
Flexes hip
Iliopsoas
Extends hip
Gluteus maximus
External rotator of the hip
Obturator internus
Internal rotator of hip
Gluteus minimus
TFL
Abductor of hip
Gluteus medius
Adductor of hip
Adductor magnus
Most common cause of sciatic nerve injury
Intragluteal injection
Injection at the buttocks should be directed at
Upper outer quadrant
Superior to line extending from PSIS to greater trochanter
Triangular area between index ASIS and middle fingers (iliac tubercle)
TFL