TABLE V.
Reoperations*
| Patient ID | Surgery | Index Level | Adverse Event | Time from Index Surgery to Reoperation (mo) | Arthroplasty Device Removal | Surgical Outcome |
|---|---|---|---|---|---|---|
| 1 | Arthroplasty | L4-5 | Retained drain | 1.7 | No | Removal of retained drain |
| 2 | Arthroplasty | L4-5 | Worse LBP | 6.6 | Yes | Removal of TOPS and conversion to single-level posterolateral fusion |
| 3 | Arthroplasty | L4-5 | Seroma | 2.5 | Yes | Wound exploration and TOPS removal |
| 4 | Arthroplasty | L4-5 | Dural tear | 0.6 | Yes (replaced) | Removal of TOPS, dural repair, placement of new TOPS |
| Persistent CSF leak | 11.1 | Yes (fusion) | Removal of TOPS, dural repair, conversion to single-level posterolateral fusion | |||
| Persistent CSF leak, severe leg pain | 11.5 | NA | Wound exploration | |||
| Pseudomeningocele | 17.4 | NA | Wound exploration and shunt implantation | |||
| 5 | Arthroplasty | L4-5 | Unresolved pain | 31.4 | No | Spinal cord stimulator placement at T12-L2 |
| 6 | Arthroplasty | L4-5 | Bilateral pedicle screw loosening at L5 | 17.2 | Yes | 2-stage revision including removal of TOPS followed by ALIF at L4-5 |
| 7 | Arthroplasty | L3-4 | Wound infection | 0.4 | No | Irrigation and debridement |
| Dural tear | 0.9 | Yes | Removal of TOPS, dural repair (with subsequent ALIF at L3-4) | |||
| 8 | Arthroplasty | L3-4 | Hematoma | 0.4 | No | Hematoma evacuation |
| 9 | Arthroplasty | L4-5 | Retained drain | 0.1 | No | Removal of retained drain |
| 10 | Arthroplasty | L4-5 | Bilateral pedicle screw loosening at L4 | 13.8 | Yes | Removal of TOPS, conversion to posterolateral fusion at L4-5 |
| 11 | Arthroplasty | L4-5 | Pedicle screw misplacement | 0.2 | No | Revision of L4 pedicle screws |
| 12 | Fusion | L4-5 | Adjacent segment degeneration | 10.0 | – | Decompression at L3-4, extension of fusion to L3-5 |
| Pseudarthrosis at L3-4 | 25.3 | – | Revision decompression and fusion at L3-5 | |||
| 13 | Fusion | L4-5 | Persistent neurologic symptoms | 0.9 | – | Revision decompression |
| 14 | Fusion | L4-5 | Adjacent segment degeneration | 20.4 | – | Decompression at L5-S1, extension of fusion to L4-S1 |
| Adjacent segment degeneration | 23.3 | – | Decompression at L3-4, extension of fusion to L3-S1 | |||
| 15 | Fusion | L4-5 | Dural tear | 0.4 | – | Dural repair |
| 16 | Fusion | L4-5 | Adjacent segment degeneration | 4.5 | – | Decompression at L5-S1, extension of fusion to L4-S1 |
| 17 | Fusion | L4-5 | Adjacent segment degeneration | 23.0 | – | Discectomy/decompression at L3-4 |
| 18 | Fusion | L4-5 | Adjacent segment degeneration | 30.2 | – | Decompression at L3-4, extension of fusion to L3-5 |
| 19 | Fusion | L4-5 | Interbody cage displacement | 1.1 | – | Revision interbody cage |
*
LBP = low back pain, TOPS = Total Posterior Spine System, NA = not applicable, CSF = cerebrospinal fluid, ALIF = anterior lumbar interbody fusion.