TY - JOUR AU - Simmons, E.D. AU - Huckell, C.B. AU - Zheng, Y. DO - doi:10.1302/0301-620X.90BSUPP_I.0880068a UR - https://doi.org/10.1302/0301-620X.90BSUPP_I.0880068a TI - PROXIMAL KYPHOSIS, “TOPPING OFF SYNDROME”, AND RETROLISTHESIS SECONDARY TO MULTILEVEL LUMBAR FUSION IN THE ELDERLY PATIENTS T2 - Orthopaedic Proceedings VL - 90-B IS - SUPP_I PY - 2008 SP - 68 EP - 68 ER -