A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of a dendritic spine. A dendritic spine is a specialized protrusion from a neuronal dendrite and is involved in synaptic transmission. [ http://www.ncbi.nlm.nih.gov/pubmed/20410104 GOC:BHF ]
Synonyms: dendritic spine organisation