Patients’ Demographic Data
| Patient No. | Gender | Age | Preoperative Neurological Findings | Radiologic Findings (X-Ray, CT, MRI) | Operation | New/Recurrent Disc Herniation | Complication | Outcome (12 months) |
|---|---|---|---|---|---|---|---|---|
| 1 | F | 26 | − Right radiating pain − Right SLR: 30º + − Right S1 nerve root DH | − L4-5: black disc − L5-S1: central and right disc extrusion | − Right L5-S1 discectomy + PDN placement − L4-L5-S1 PDTS | New disc | None | Improved |
| 2 | F | 40 | − Left radiating pain − Left SLR: 10º + − Left gastrocnemius 2/5 MW | − L5-S1 disc sequestrated − Both endplate hyperintense | − Left L5-S1 discectomy + PDN placement − L5-S1 PDTS | New disc | None | Improved |
| 3 | M | 57 | − Right radiating pain − Right SLR: 45º + | − L5-S1 right disc extrusion, − Right L5 hemilaminotomy defect | − Right L5-S1 discectomy+ PDN placement − L5-S1 PDTS | Recurrent disc | − Discitis, − PDN device embedded into the L5 corpus | − Treatment: antibiotic administration, PDN was removed − LBP to 3 months − Late improved |
| 4 | M | 34 | − Right radiating pain − Right SLR: 45º + | − L4-5: bulging and annulus fibrosis rupture − L5-S1: Right disc protrusion | − Right L5-S1 discectomy + PDN placement − L4-L5-S1 PDTS | New disc | None | Improved |
| 5 | M | 38 | − LBP − Right radiating pain | − L5-S1 right disc protrusion − Both endplates hyperintense − Right L5 hemilaminotomy defect | − Right L5-S1 discectomy + PDN placement − L5-S1 PDTS | Recurrent disc | None | Improved |
| 6 | M | 42 | − LBP, left radiating pain − Left SLR: 30º + − Left L5 nerve root DH | − L4-5: left protrusion − Both endplates hyperintense − Left L4 hemilaminotomy defect | − Left L4-L5 discectomy + PDN placement − L4-L5 PDTS | Recurrent disc | None | Improved |
| 7 | M | 44 | − Left radiating pain − Left SLR: 45º + − Left L5 nerve root DH | − L4-5 left protrusion | − Left L4-L5 microdiscectomy +PDN placement − L4-L5 PDTS | New disc | None | Improved |
| 8 | M | 45 | − Right radiating pain − Right SLR: 30º + | − L3-L4: annulus fibrosis rupture − L4-L5: right L4 hemilaminotomy defect+ right disc extrusion | − Right L4-L5 discectomy + PDN placement − L3-L4-L5 PDTS | Recurrent disc | None | Improved |
| 9 | F | 40 | − Left leg radiating pain − Left SLR: 45º + | − L4-5 left disc extrusion. − Left L5 hemilaminotomy defect | − Left L4-L5 discectomy + PDN placement − L4-L5 PDTS | Recurrent disc | None | Improved |
| 10 | M | 42 | − Left leg radiating pain − Left SLR: 45º + | − L4-5 left disc extrusion | − Left L4-L5 discectomy +PDN placement − L4-L5 PDTS | Recurrent disc | PDN embedded into the L4 corpus and massive endplate degeneration in both endplates | − PTR+ conservative treatment to 3 months − LBP to 3 months − Late improved |
| 11 | M | 39 | − Right leg radiating pain − Right SLR: 45º + − Right gastrocnemius 2/5 MW | − L5-S1 foraminal disc protrusion | − Right L5-S1 discectomy +PDN placement − L5-S1 PDTS | New disc | None | Improved |
| 12 | M | 45 | − Left leg radiating pain − Left SLR: 45º + | − L4-5 left disc extrusion | − Left L4-L5 discectomy +PDN placement − L4-L5 PDTS | New disc | None | Improved |
| 13 | M | 40 | − LBP − Right radiating pain | − L5-S1 right disc protrusion | − Right L5-S1 discectomy +PDN placement − L5-S1 PDTS | Recurrent disc | PDN migrated to right side in the intervertebral space | Improved |
SLR: Straight Leg Rising
LBP: Lower back pain
DH: Dermatome hypoesthesia
MW: Muscle Weakness
PTR: Physical Treatment and Rehabilitation
PDN: Prosthetic Disc Nucleus
PDTS: Posterior Dynamic Transpedicular Stabilization