Table 2

 Presenting symptoms grouped according to the selected approach (lateral transmuscular approach (LTM) versus combined interlaminar/paraisthmic approach (CIP))

Clinical featuresLTMCIPp Value
Symptoms
Low back pain14 (70%)6 (21%)p<0.01
Radicular pain19 (95%)28 (100%)NS
Sensory deficit16 (80%)19 (68%)NS
Motor deficit12 (60%)15 (54%)NS
Level
L3/49 (45%)4 (14%)
L4/56 (30%)16 (61%)
L5/S15 (25%)7 (25%)
Location
Extraforaminal12 (60%)13 (46%)
Intra-/extraforaminal8 (40%)4 (14%)
Intraforaminal011 (39%)
Previous surgery
Same location2 (10%)1 (4%)
Different level6 (30%)4 (14%)