44+4-year-old female had a lumbar scoliosis and a severe degeneration of the L5/S1 disc. As a high-level athlete (ex-triathlete and world-class cyclist), it was important to maintain as much mobility through her lumbar spine as possible. Thus, she underwent a unique surgery with a posterior scoliosis fusion performed from T12-L4 then a custom disc replacement at L5-S1 to keep her 5-1 disc mobile to allow her to continue her sporting activities. At 7 years postoperative, she has maintained good alignment and balance and has maintained her activity at a very high level as well.