Choosing the best C-arm for spine surgery departments

What a C-arm for spine surgery must do

Spine cases put heavy demands on a mobile X-ray unit. The surgeon needs a true AP view with level end plates, a crisp lateral through the shoulders or pelvis, and the ability to repeat both after every instrument or implant step. In pedicle screw fixation, kyphoplasty, fusion and deformity work this can mean dozens of image sets per case.

For that reason, image quality at low dose, a generator with enough heat capacity for continuous fluoroscopy, and a gantry that moves smoothly without disturbing the sterile field are more important than any single headline number.

Detector size and C-arm geometry

A larger detector shows more vertebrae at once and cuts the number of repositioning moves. The PLX C2119 uses a 30 x 30 cm dynamic flat panel, and Perlove states that five lumbar vertebrae fit in a single image. The Villa Arcovis DRF family offers 21 x 21 cm or 30 x 30 cm panels with 5, 20 or 25 kW generators, with an IGZO flagship that shows images at full resolution on a 31.5 inch 4K monitor.

Check the free space inside the arc and the orbital range, because a large patient lying prone on a Jackson-type table leaves little room. The PLX C7600 3D C-arm specifies 94 cm of free space. Ask for the same figure in every quotation. Our article on flat panel versus image intensifier explains why panels dominate spine work.

3D C-arm for spine: when it is worth it

Intraoperative 3D shows screw position in the axial plane, where 2D views are least reliable. The PLX C7600 produces transverse, sagittal and coronal slices plus 3D images in real time; Perlove quotes a 30 second acquisition and 8 second reconstruction, with a 3D field covering all lumbar or cervical vertebrae. Checking implants before leaving the OR may reduce the need for revision, as the manufacturer notes.

A 3D scan adds radiation and time, so it makes sense where volumes of instrumented cases are high. See the 3D C-arm explainer and the comparison of C-arm versus O-arm for a fuller view of the decision.

Spine navigation C-arm and robotic readiness

If your department plans navigation, ask how the C-arm connects to the tracking system: automatic registration, position memory and a stable, repeatable 3D scan matter more than the camera brand. The Perlove PL300B pairs the company's own intraoperative 3D C-arm with an optical tracking camera of sub-millimetre accuracy and a six-direction robotic arm with a force sensor, and plans screw trajectories on the intraoperative 3D images.

Even if you buy a standard 2D unit today, check whether it can be upgraded or connected to a surgical robot later. The PLX C22 series, for example, is described as able to connect to a surgical robot. Confirm the exact upgrade path in writing.

• Automatic registration without manual steps
• DICOM export to the navigation workstation
• Positioning lasers and saved positions for repeatable views
• Anti-collision protection around the table

Practical buying checklist

Request a demonstration with a spine model on a carbon-fibre table and measure whether the lateral view is achievable on your largest patients. Ask about angular motorisation and anti-collision sensors, which are optional on the Arcovis DRF, and check the turning radius against your OR layout. The mobile C-arm buying guide gives the general checklist.

Finally, confirm installation, application training, service coverage and spare parts in the UAE. Beckfinity's specialists can compare configurations of the PLX C7600, PL300B and Arcovis DRF against your spine caseload and prepare a quote.