Patient prone on bed, knee flexed slightly with a pad under the ankle for support. Survey the entire fossa to identify the normal anatomy, including; Popliteal artery and vein (patency. aneurysm, thrombosis) Posterior joint (joint effusion) Medial popliteal fossa bursa between semi-membranosus tendon and medial gastrocnemius muscle] (Baker’s cyst) Document the normal anatomy and any pathology found, including measurements and vascularity if indicated.
Patient lies supine on bed with knee flexed 20 – 30 degrees. Alternatively patient may sit on the side of a raised bed with foot resting on Sonographer’s knee for support. Identify the normal anatomy, including: Quadriceps tendon (tears, M/T junction, tendonitis) Suprapatella bursa (bursitis-simple/complex, synovial thickening, loose bodies) Patella (gross changes eg erosion, bipartite, fracture) Patella tendon (tears, tendonitis, insertion enthesopathy) Infrapatella bursa (tendonosis, tears, bursitis, fat pad changes) Infero-Medial – Pes anserine bursa
LATERAL AND MEDIAL KNEE
May be scanned as above. Assess the medial and Lateral Collateral ligaments and meniscal margins. Joint lines (ligament tears or thickening, meniscal bulging/cysts, joint effusion, gross bony changes)