Clinical Study

Minimally Invasive Transforaminal Lumbar Interbody Fusion at L5-S1 through a Unilateral Approach: Technical Feasibility and Outcomes

Table 2

Demographic characteristics of the patients.

Characteristics
Age61.5 ± 11.2 (29–71)
SexMale: 7 (33.3%); female: 14 (66.7%)
BMI (kg/m2)26.5 ± 7.1 (17.0–45.9)
Bone density (-score)−1.6 ± 0.8 (−4.0–1.5)
Primary diagnosis
Spinal stenosis without spondylolisthesis12 (57.1%)
Isthmic spondylolisthesis2 (9.5%)
Degenerative spondylolisthesis6 (28.6%)
Foraminal stenosis3 (14.3%)
Adjacent segment pathology1 (4.8%)
Recurrent disc herniation1 (4.8%)
Comorbid conditionsDiabetes mellitus: 11 (52.3%)
Hypertension: 10 (47.6%)
Cage typeBanana-shaped: 8 (38.1%); straight: 13 (61.9%)
Bilateral decompression through unilateral facetectomy5 (23.8%)
Perioperative parameter
Operation time (mins)126.4 ± 30.9 (110–155)
Blood loss (mL)212 ± 90.1 (200–450)
Postoperative hospital stay (days)7.1 ± 3.3 (6–12)
Complications2 (14.3%)
(1: dural tear; 1: screw malposition)