Patient-specific core decompression surgery for early-stage ischemic necrosis of the femoral head
Fig 3
Use of the navigation template for core decompression.
A. The drilling depth was based on the measurement of the core decompression’s osseous channel. B. The navigation template was placed on the three positioning Kirschner wires at a distance of 50 mm from the bone, and another Kirschner wire (3 mm in diameter) marked with decompression depth was drilled into the femoral head through the guide rod direction.
