From: Saphenous nerve block versus femoral nerve block in enhanced recovery after knee replacement surgery under spinal anaesthesia
Quadriceps muscle weakness grades
Group F
(n=30)
Group S
X2
p-value
Grade 0
13 (43.3%)
26 (86.7%)
12.6
0.0019
Grade I
6 (20%)
2 (6.7%)
Grade II
11 (36.7%)