Measurement issues related to upper limb interventions in persons who have tetraplegia.

Measurement of upper limb function in persons with tetraplegia poses significant issues for clinicians and researchers. It is crucial that measures detect the small but significant improvements in hand function that may or may not occur as a result of our interventions. Before determining how we measure changes from upper limb interventions, we must establish what outcomes are of greatest interest, and for whom. Many issues have an impact on both the measurement and interpretative process.