Computer Navigation for Surgery

Computer navigation for surgery uses tracked instruments and anatomical information to guide positioning during selected orthopedic procedures.

Computer navigation is a surgical guidance system that combines information about your anatomy with tracking of instruments or body landmarks. A surgeon uses the display to understand position and alignment during an operation. The system supports decisions; it does not perform the operation independently. Its use depends on the procedure, the equipment available, and the surgeon's assessment.

The technology may be considered when accurate alignment or planned positioning is central to an orthopedic operation. It can help the team compare the intended plan with the position being reached during surgery, while the surgeon remains responsible for interpreting the information and completing the procedure.

Before or during surgery, the team establishes reference points and registers the relevant anatomy with the navigation system. Tracking tools are then used while the surgeon prepares bone, places components, or checks alignment, depending on the operation. The surgeon cross-checks the screen with direct examination and the surgical plan. For examples of procedures where guidance may be discussed, read [Total Knee Replacement](/treatments/joint-replacement/total-knee-replacement/) and [Scoliosis Surgery](/treatments/spine-care/scoliosis-surgery/).

The system may also help document planned and observed positions during the procedure. Registration must be accurate and maintained; if the information does not match the anatomy or instruments, the team can verify it, adjust the process, or continue using standard surgical methods.

Navigation cannot remove the general risks of surgery, predict your recovery, or guarantee a particular result. It may not be suitable or necessary for every operation. Accuracy depends on registration, visibility of landmarks, tracking, and the anatomy being treated. A computer display is an aid, not a substitute for surgical judgment, direct checks, imaging when needed, or careful postoperative care.

The technology also does not treat the underlying condition on its own. Pain, stiffness, infection, blood clots, nerve symptoms, or difficulty with rehabilitation can still occur after surgery and need the usual clinical attention.

A surgeon may use conventional instruments with direct anatomical checks, imaging during surgery, patient-specific planning, or a combination of methods. For some conditions, non-surgical care such as physiotherapy, activity modification, or medication review may be considered before an operation. The choice reflects the diagnosis, anatomy, procedure, and available expertise.

Ask whether navigation changes the planned procedure, what part of the operation it will guide, and what happens if the system is unavailable. Also ask about the surgeon's experience with the procedure, expected rehabilitation, and signs that require urgent contact after surgery. Your recovery instructions remain important whether navigation is used or not.

Tell the surgical team about previous operations, implanted hardware, allergies, medicines that affect bleeding, and any new illness. The team should explain the operation, the navigation system's role, and alternatives as part of consent. Navigation equipment must be registered and checked during use. Contact the care team promptly after surgery for fever, increasing wound redness or drainage, new severe swelling, chest symptoms, or a new neurological change.