Feasibility of the Atlas Unicompartmental Knee System load absorber in improving pain relief and function in patients needing unloading of the medial compartment of the knee: 1-year follow-up of a Prospective, Multicenter, Single-Arm Pilot Study (PHANTOM High Flex Trial) - Slynarski, K; Walawski, J; Smigielski, R; van der Merwe, W (Clin Med Insights Arthritis Musculoskelet Disord, 2017)