TY - JOUR AU - Saifuddin, A. AU - White, J. AU - Tucker, S. AU - Taylor, B. A. DO - doi:10.1302/0301-620X.80B2.0800208 UR - https://doi.org/10.1302/0301-620X.80B2.0800208 TI - Orientation of lumbar pars defects T2 - The Journal of Bone & Joint Surgery British Volume VL - 80-B IS - 2 PY - 1998 SP - 208 EP - 211 ER -