Open Access
Table 1
Pearls and pitfalls of en bloc discectomy via anterior lumbar approach.
| Pearls | Details |
|---|---|
| Direct visualization of the disc and anterior pathology | The anterior approach provides direct access to both the disc space and any anterior intracanal pathology, facilitating better surgical precision |
| Complete nucleus removal | Complete removal of the nucleus offers a reduced risk of re-herniation compared to traditional microdiscectomy, ensuring long-term relief |
| Preserving subchondral bone with Cobb elevators | By positioning Cobb elevators parallel to the endplate, the attachment of the cartilage endplate can be carefully removed, preserving the critical subchondral bone for optimal bony integration with the implant. |
| Stability through peripheral annulus preservation | Preserving the peripheral annular rim (especially on the lateral side) enhances implant stability, minimizing the risk of displacement. |
| Larger implant placement for increased stability |
The anterior approach allows for the placement of a larger cage or implant, contributing to better overall stability and reduced risk of implant migration |
| Pitfalls | |
| Steep learning curve for anterior approach | The anterior lumbar spine approach requires a steep learning curve, as it necessitates familiarity with the vascular structures in the area to avoid complications. |
| Risk of subchondral bone damage | Use of aggressive, non-parallel Cobb elevators may compromise the integrity of the subchondral bone, increasing the likelihood of implant subsidence or failure. |
| Implant misalignment and malposition | Incorrect alignment or positioning of the implant can lead to instability and may increase the likelihood of requiring revision surgery due to mechanical failure |
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