Nickel titanium (NiTi) shape memory alloys are promising biomaterials for bone replacement applications, as they show similar bio-mechanical properties to human bone as well as high biocompatibility and good corrosion resistance. NiTi alloys also exhibit properties such as super-elasticity or shape memory effects - offering opportunities in tailored mechanical properties that are not available with other metallic biomaterials. This investigation was aimed at creating cellular NiTi materials with elastic moduli close to that observed for cortical bone. The cellular samples were fabricated using pre-alloyed spherical NiTi powder, a polymer binder and urea as the spaceholder. The urea particles were spherical with a narrow size distribution between 1.68 and 2.00 mm. Vacuum sintering conditions were optimised initially using non-spaceholder samples (NiTi powder + polymer binder only) to reduce micro-porosity below 5%. This required long sintering times close to the observed melting point of the NiTi. Microindentation studies confirmed that the dense material exhibited large elastic recovery in the as-sintered state. These sintering conditions were then used to produce cellular samples with interconnected macro porosity levels at 50 and 55 vol%. Incremental compressive loading-unloading tests demonstrated that all of the macro-porous samples displayed super-elasticity in the as-sintered condition. The 50 vol% macro-porous samples showed consistent super-elastic behaviour recovering 85-90% of stain when compressed to a maximum strain of 4%. The 55 vol% macro-porous samples on the other hand showed much more variable behaviour. The measured elastic modulus of all samples lay between 17 and 7 GPa, higher for the 50 vol% macro-porous samples than the 55 vol% macro-porous samples. The elastic modulus for all samples decreased with increasing residual strain. While samples were successfully made for mechanical testing, the fragility of the materials after thermal debinding was a major challenge.