Arthrosurface launched SpiralUp™, a talocalcaneal allograft system to treat peritalar subluxation and other injuries resulting in instability in the subtalar joint. SpiralUp supplements the TCL ligament by acting as a dense, strong and flexible connective tissue layer to improve function of the foot as well as conditions along the musculoskeletal chain, meaning that it stabilizes the subtalar and midtarsal joints while also addressing conditions such as arch, leg, knee and lower back discomfort.