Predictive Scoring and Risk Factors of Early Recurrence after Percutaneous Endoscopic Lumbar Discectomy

Figure 3

Case of early recurrence after PELD. Preoperative MRI shows L4–5 disc herniation left downward migrated type (a, b). Immediate postoperative MRI image shows L4–5 left side disc removed and left nerve root decompressed (c, d). However, 4 month later, follow-up MRI shows L4–5 disc reherination again at same operated site (e, f). According to scoring system, (1) age: 55 (2 point), (2) gender: female (0 point), (3) BMI: 23 kg/m² (0 point), (4) disc degeneration scale: 3 scale (1 point), (5) Modic change (0 point), (6) combined HNP: 1 level (0 point), (7) disc herniation episode: first (0 point), (8) annulus preservation: minimal annulotomy (0 point), (9) approach: transforaminal outside-in (0 point) (10) disc location: paracentral downward migrated (2 points) (11) herniated disc level: L4–5 (1 point), (12) disc height: 66% (1 point), (13) segmental dynamic motion: group 7 (0 point), (14) early ambulation: bed resting 5 days (0 point), (15) spinal orthosis: corset (0 point). Total score: 7 points (group B).

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