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Knee joint (relations of knee joint (posteriorly (at middle (popliteal…
Knee joint
relations of knee joint
Anteriorly
- anterior bursa
- ligamentum patella
- patella plexus nerves
posteriorly
at middle
- popliteal vessels
- tibial nerve
posterolaterally
- Lat head of
gastrocnemius
- plantaris
- common
peroneal nerve
posteromedially
- med head of
gastrocnemius
- semitendinosus
- semimembranosus
- gracilis
- popliteus
at its insertion
medially
- sartorius
- gracilis
- semitendinosus
- great sephenous vein
- with sephanous nerve
- semimembranosus
laterally
- biceps femoris
- tendon of origin
of popliteus
movements
-
extension
120-150 deg
- Quadriceps femoris (4 heads)
-
-
-
Type
Condylar synovial joint
Has
- 2 condylar joints
( betw the condyles of femur & tibia)
- 1 saddle joint
( betw the femur & patella)
Is also a complex joint
- Cos cavity is divided by the meniscus
Is the
- largest &
- most complex joint
of the body
- complex cos of
-fusion of 3 joints in 1
- lateral femorotibial joint
- medial femorotibial joint
- femoropatella joint
Ligaments
- fibrous capsule
- Ligamentum patellae
- Tibial collateral /medial ligament
- Fibular collateral / lateral ligament
- Oblique popliteal ligament
- Arcuate popliteal ligament
- Anterior cruciate ligament
- Posterior cruciate ligament
- medial menisci
- Lateral meniscus
- Transverse ligament
-
blood supply
is surrounded by the anastamosis around it
- 5 genicular branches of popliteal artery
- the desc genicular branch of femoral artery
- the desc branch of lat circumflex femoral artery
- 2 recurrent branches of anterior tibial artery
- the circumflex fibular branch of the posterior tibial artery