Luttinger surgery along Lagrangian tori and non-isotopy for singular   symplectic plane curves
  We discuss the properties of a certain type of Dehn surgery along a Lagrangian torus in a symplectic 4-manifold, known as Luttinger's surgery, and use this construction to provide a purely topological interpretation of a non-isotopy result for symplectic plane curves with cusp and node singularities due to Moishezon. 
D. Auroux, S.K. Donaldson, L. Katzarkov