Popliteal artery

The popliteal artery is the direct continuation of the superficial femoral artery, at the point where it exits the adductor canal at the adductor hiatus, and passes into the popliteal fossa as the vessel courses posteriorly behind the knee.

As a continuation of the femoral (superficial femoral) artery as it passes into the popliteal fossa through the adductor canal at the junction of the middle and lower thirds of the thigh.

Descends as the deepest structure on the floor of the popliteal fossa. Courses just superficial to the popliteus muscle. 

At the lower border of the popliteus, divides into its terminal branches - anterior tibial and tibioperoneal trunk.

  • superior medial and lateral genicular arteries - course around the femoral condyles as part of the genicular anastomosis
  • inferior medial and lateral genicular arteries - course around the tibial condyles as part of the genicular anastomosis
  • middle genicular artery - pierces oblique popliteal muscle
  • muscular branches - supply hamstrings, adductor magnus and triceps surae 
  • cutaneous branches - supply skin over knee joint 
  • femoral vein and tibial nerve - both structures are lateral in the upper part of the popliteal fossa and then cross posterior to the artery to become medial to it in the lower popliteal fossa 
  • superficial - popliteal surface of the femur (separated by fat), knee joint capsule and the popliteal fascia 
  • lateral - (above) biceps femoris and lateral condyle of the femur, (below) plantaris and lateral head of the gastrocnemius
  • medial - (above) semimembranosus and medial condyle of the femur, (below) medial head of the gastrocnemius
  • posterior - (above) semimembranosus, (below) gastrocnemius and plantaris 

Variants in popliteal branching pattern 1,2:

  • popliteal artery arising off sciatic artery 
  • ~90% of the population displays the typical branching pattern of bifurcation into anterior tibial artery and tibioperoneal trunk
  • ~10% have variant branching pattern:
    • hypoplastic infrapopliteal vessels ~4% (range 1.0-6.8%)
    • trifurcation (no tibioperoneal trunk) ~2% (range 1.5-3.2%)
    • high bifurcation (above popliteus)
    • high origin of anterior tibial artery ~2.5% (range 0.5-4.5%)
    • high origin of posterior tibial artery ~1%
    • peroneal artery arising off anterior tibial artery 
Anatomy: Lower limb
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Article information

rID: 24870
Synonyms or Alternate Spellings:
  • Popliteal arteries

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Cases and figures

  • Figure 1: popliteal fossa
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