Patient-specific guides for pedicle screw insertion
SurgiNovi’s spinal guide range includes SurgiScol Spine PST, described for planned pedicle screw trajectories in scoliosis surgery. The design uses anatomical contact features associated with the spinous process, transverse processes and articular surfaces.
The guide provides a physical reference for the trajectory defined during preoperative planning. The surgeon selects the required levels and guide configuration in relation to the proposed procedure. The website also illustrates SurgiSpond PST within the spinal range.
Planning at the relevant vertebral levels
Each level needs to be considered against its own anatomy. A plan for a series of vertebrae should make the intended levels and trajectories clear, so that the instrument information can be reviewed against the same case reference.
Patient-specific design is particularly dependent on the relationship between the reconstructed anatomy and the guide’s intended contact points. Any uncertainty about those surfaces should be addressed during preparation. The source imaging remains an essential reference when reviewing the reconstruction.
SurgiScol PST
SurgiSpond PST
1. Pedicle screw guide with 3 mm diameter
2. Transverse process positioning probe
3. Articular surface positioning rib
4. Spinous process positioning head
Organising a multilevel case
Clear identification is especially useful when a case involves several guides. The planning record should distinguish the relevant levels and show how each instrument relates to the agreed plan. A change to the proposed levels or fixation strategy needs to be reflected in the case information.
Preparation should also identify the other equipment required. Patient-specific guidance is one component of the procedure; the surgeon determines the appropriate methods for assessing and managing the case during surgery.
Questions about spinal guidance
How many guides are required?
The number depends on the levels and configuration selected in the surgical plan. It should be established for the individual case rather than assumed from a general product description.
Can the same guide be used at another level?
A patient-specific instrument has a designated anatomical purpose. The planning information and product-specific instructions determine that purpose; similarity in appearance does not establish interchangeability.
SurgiNovi Custom-Made Patient-Specific Spine Guides
The templates overview explains patient-specific instruments across our orthopaedic portfolio. Our planning software pages introduce digital preparation tools, while the anatomical models page describes physical representations that can be considered for anatomical review and teaching.