Measuring volume between meshes


For our study we want to measure the gap between the right mesh (bone fragment) and the left mesh (lower leg) (see red lines). Is it possible to create a mesh between these two meshes? It would be difficult to put new points near the line from the existing mesh, that will not be precise enough.

Thanks in advance,
Bonheur and Diederik

Hi Bonheur - can you post the Rhino file?