Table 2.
Overview of surgery details and clinical outcome in 12 dogs with lumbosacral degenerative stenosis (DLSS) that were treated with pedicle screw-rod fixation
| Dog | Surgery | Bone graft | Clinical outcome (follow-up period) | Griffith score | |
|---|---|---|---|---|---|
| pre-op | last FU | ||||
| 1 | L7-S1: DL, PD, PSRF | Bone L7 + S1 | Excellent (4 yrs) | 3 | 0 |
| 2 | L7-S1: DL, PD, PSRF | Bone L7 + S1 | Excellent (4 yrs) | 1 | 0 |
| 3 | L7-S1: DL, PD, PSRF | Bone L7 + S1 | Excellent (3 yrs) | 2 | 0 |
| 4 | L7-S1: rDL, PD, PSRF & Distraction | Bone iliac crest. Osteostixis EPs | Improved (euth. 6 mo, heart disease) | 2 | 2 |
| 5 | L7-S1: rDL, PD, L Facetectomy, L Foraminotomy, Excision L7 nerve, PSRF | Bone L7 + S1 | Improved (euth. 15 mo, neoplasia) | 3 | 3 |
| 6 | L6-S1: DL, L7-S1: DL, PSRF | Bone L7 + S1 | Improved (1.5 years, euth. hemangiosarcoma) | 2 | 0 |
| 7 | L7-S1: DL, PD, L&R Facetectomy, PSRF & Distraction | Bone L7 + S1 | Excellent (1 yr) | 1 | 0 |
| 8 | L7-S1: DL, PD, PSRF | Bone L7 + S1 Burring EPs | Improved (euth. 8 mo) | 3 | 1 |
| 9 | L6-S1: DL, L7-S1: PD; L&R Facetectomy, PSRF & Distraction | Bone L7 + S1 | Excellent (6 mo) | 1 | 0 |
| 10 | L7-S1: rDL, PD, PSRF | Bone L7 + S1 | Excellent (6 mo) | 2 | 0 |
| 11 | L6-S1: DL, L7-S1: PD | Bone L7 + S1 | Excellent (11 mo) | 1 | 0 |
| PSRF & Distraction | |||||
| 12 | rDL, Partial L Facetectomy, L Foraminotomy, PSRF | None | Excellent (6 mo) | 1 | 0 |
Excellent: resolution of clinical signs. Improved: decrease of clinical signs
Abbreviations: DL dorsal laminectomy, rDL revision DL, PD partial discectomy, PSRF pedicle-screw rod fixation, L left, R right, EPs end plates, yrs years, mo months, euth. euthanized, FU follow-up