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Revision Sacrum to No Qualifier with Synthetic Substitute, Open Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | Q Lower Bones |
| Operation | W Revision |
| Body Part | 1 Sacrum |
| Approach | 0 Open |
| Device | J Synthetic Substitute |
| Qualifier | Z No Qualifier |
Operation Definition
Correcting, to the extent possible, a portion of a malfunctioning device or the position of a displaced device
Procedure Overview
Revision procedures address a device that was previously implanted in a lower bone - such as a rod, plate, screw, or bone cement construct - when it has shifted position, is malfunctioning, or is otherwise not working as intended. The bone itself is not the primary target; the hardware or material within or against it is.
These procedures are common after orthopedic fixation surgery when follow-up imaging or symptoms reveal that a fixation device has loosened, backed out, broken, or migrated. Surgeons go back in to reposition, tighten, repair, or otherwise correct the existing device to the extent possible, aiming to avoid a full device replacement if the original hardware can still function once adjusted.
Anatomy & Axis Detail
Sacrum
The sacrum is the triangular bone formed by fused sacral vertebrae that connects the lumbar spine to the pelvis via the sacroiliac joints, commonly instrumented with iliosacral screws, sacral rods, or pelvic fixation extensions in long spinal fusion constructs. Revision procedures here correct malpositioned screws, address hardware that has migrated toward neural structures in the sacral canal, or repair a fractured rod-sacrum junction, a site prone to mechanical stress given the transition between mobile lumbar spine and fixed pelvis. Because the sacrum sits adjacent to the cauda equina and sacral nerve roots, revision work demands careful imaging correlation to avoid further neurologic compromise. Coding should reflect correction of the existing device in place rather than its outright removal or a new implantation.
Approach: Open
Open approach means the surgeon cuts through skin, mucous membrane, or other tissue layers to physically expose the target site to view before performing the procedure. It gives direct visualization and hands-on access, distinguishing it from Percutaneous approaches where instruments pass through a small puncture without exposing the site. Open is typical for procedures needing wide access, such as most laparotomies.
Device: Synthetic Substitute
Synthetic Substitute designates a device made from manufactured, non-biologic material, such as mesh or prosthetic components, used to replace or augment a body part. It is distinguished from the two tissue substitute categories by its artificial composition, which carries different considerations for integration and long-term durability than biologic grafts.
Coding & Documentation
The documentation needs to describe correction of a device already in place - repositioning a displaced screw, replacing a broken segment of a rod, or repairing a malfunctioning fixation component - rather than removal of the device followed by insertion of a brand-new one. If the surgeon fully swaps out the device rather than fixing the one already present, Removal plus Insertion or Replacement is usually the more accurate combination.
A frequent assignment mistake is coding Revision for a straightforward hardware removal with no correction performed, or for a first-time hardware placement. Coders should also verify the correct body part value reflects the bone where the device sits, since Revision codes are structured around device location rather than the device type itself.