Table 3.

Summary of the approach and volume used following successful interspace between the popliteal artery and the capsule of the posterior knee blocks in pediatric and adolescent patients

Author (yr)	Approach	Sample number	Patient age in years	Volume of anaesthesia
Harb et al. (2020) [16]	Immediately superior to the femoral condyles, 2 cm from the lateral border of the popliteal artery.	3	13	12 ml 0.5% ropivacaine
			14	10 ml 0.25% bupivacane
			14	20 ml 0.5% ropivacaine
Nguyen et al. (2020) [17]	At the level of the femoral condyles, between the lateral border of the popliteal artery and the femoral condyle.	3	13	10.2 ml 0.2% ropivacaine
			14	12.6 ml 0.2% ropivacaine
			16	22.6 ml 0.2% ropivacaine