Kinesiology - knee Flashcards
What is the insertion point for all of the quad muscles?
tibial tuberosity
How many joints are there in the knee
3
What are the 3 joints in the knee called?
- patellofemoral
- tibiofemoral
- proximal tibiofibular
What type of joint is the proximal tibiofibular?
gliding joint
What type of joint is the tibiofemoral joint?
not a true hinge joint
What 4 movements can the knee carry out
- flexion
- extension
- internal rotation
- external rotation
What are the 4 muscles in the quadricep
- vastus lateralis
- rectus femoris
- vastus intermedius
- vastus medialis
What are the 3 muscles in the hamstring
- biceps femoris
- semimembranosus
- semitendinosus
What is the origin of the long head of the bicep femoris
ischial tuberosity
What is the origin of the short head of the bicep femoris?
lower linea aspera
What is the insertion of the bicep femoris?
LATERALLY
head of fibula and lateral tibial condyle
What is the innervation of the bicep femoris?
sciatic nerve
What is the palpation of the bicep femoris?
posterolateral aspect of upper leg
What is the origin of the semitendinosus and semimembranosus?
ischial tuberosity
What is the insertion of the semitendinosus?
anterior of tibia just below medial condyle
What is the insertion of the semimembranosus?
posterior of medial tibial condyle
What is the innervation of the semimembranosus and semitendinosus?
sciatic nerve
What is the palpation of the semimembranosus and semitendinosus?
posterolateral aspect of upper leg
What is the origin of the rectus femoris?
anterior inferior iliac spine
What is the insertion of the rectus femoris?
tibial tuberosity (via patellar tendon) and superior aspect of patella
What is the innervation of the rectus femoris?
femoral nerve
What is the palpation of the rectus femoris?
straight down anterior thigh with knee extension
What is the origin of the vastus intermedius?
upper 2/3 of anterior femur surface
What is the insertion of the vastus intermedius?
tibial tuberosity (via patellar tendon) and superior aspect of patella
What is the innervation of vastus intermedius?
femoral nerve
What is the palpation of the vastus intermedius?
deeper muscle
What is the origin of the vastus medialis?
linea aspera
What is the insertion of the vastus medialis?
tibialis tuberosity (via patellar tendon) and medial aspect of patella
What is the innervation of the vastus medialis?
femoral nerve
What is the palpation of the vastus medialis?
straight down anterior thigh with knee extension
What is the 3 origins of the vastus lateralis?
- greater trochanter
- linea aspera
- gluteal tuberosity
What is the insertion of the vastus lateralis?
tibial tuberosity (via patellar tendon) and lateral aspect of patella
What is the innervation of the vastus lateralis?
femoral nerve
What is the palpation of the vastus lateralis?
deeper muscle
What are the 4 other knee flexor?
- gastrocnemius
- popliteus
- sartorius
- gracilis
What muscle rotates externally within knee rotation?
bicep femoris
What muscles rotate internally within knee rotation?
- semimembranosus
- semitendinosus
- gracilis
- sartorius
List the flexors in the knee
- hamstrings (BF, SM, ST)
- popliteus
- gastrocnemius
- sartorius
- gracilis
List the extensors in the knee
- vastus medialis
- vastus lateralis
- vastus intermedius
- rectus femoris
List the internal rotators (flexed only) in the knee
- semimembranosus
- semitendinosus
- sartorius/gracilis (assist)
List the external rotators (flexed only) in the knee
bicep femoris
What is genu valgum?
when the knees move inwards (medially)
What is genu varum?
when the knees move outwards (laterally)
What is Osgood Schlatter’s?
traction periostitis of the tibial tuberosity
What is the mechanism of Osgood Schlatter’s?
overuse/repetitive stress
What is the management for Osgood Schlatter’s?
- RICE
- NSAIDs
- progressive rehabilitation
What is the presentation of Osgood Schlatter’s?
- local pain at the tendon attachment to the tibia (during and after exercise)
- tenderness and swelling at the point of attachment
- xray may show bone fragmentation at the tibial tuberosity
What are the complications of Osgood Schlatter’s?
- reinjury
- possible avulsion fracture
What is a patellar tendon rupture?
rupture or partial rupture to the patella tendon (often at the point of
attachment to the patella)
- may be called jumpers knee
What is the mechanism of a patellar tendon rupture?
repetitive and high amount of jumping and lunging activities (classed as high impact)
What is the management for a patellar tendon rupture?
- RICE
- NSAIDs
- progressive rehabilitation
- possible imbolisation
What is the presentation of a patellar tendon rupture?
- pain and tenderness over the patella tendon at point of attachment (distal aspect of patella)
- aching and stiffness after exertion
What is the complications of a patellar tendon rupture?
- reinjury
- reduced performance
What is the Q (quadricep) angle?
angle between the line of
quadriceps (ASIS to midpoint of patella) and the line of the patella tendon to the tibial
tuberosity