ApiFix MID-C — non-fusion correction in adolescents

The implant is anchored at a few points on the concave side of the curve through small incisions, and no segments are fixed to one another. A ratchet mechanism lengthens with the patient's own bending movements and holds the correction as it is gained.

Only if it fits a very narrow profile: a single, flexible curve of moderate size that corrects well when bending sideways. Most adolescent scoliosis does not, and in those cases it is not an alternative to conventional instrumentation. This is a technique with a narrow indication, not a gentler version of the usual surgery.

Yes, that is its whole point compared with a fusion: as no segments are locked, spinal mobility is preserved. But it is a real advantage only when the curve fits the profile; stretching the indication in order to keep movement does not pay off.

The correction advances with the patient's own movement: the mechanism lengthens as the trunk bends and holds what has been gained. It does not depend on repeated adjustments in theatre.