The SMR-R humeral resurfacing system is available in multiple sizes to match the patient anatomy and either standard or extended heads if required in a cuff deficient situation. The resurfacing heads have a Ti, plasma spray HA coating on their underside to aid fast osteointegration and resulting stability. 2 sizes of modular stem attach to the resurfacing head with taper locking technology allowing the fixation to be matched to patient size. The fully cannulated instrument system allows accurate preparation of the humeral head to allow a close fit to the final implant with reduced sized reamers allowing good visibility.