TY - JOUR AU - Ryan, MD DO - doi:10.1302/0301-620X.73B3.1670459 UR - https://doi.org/10.1302/0301-620X.73B3.1670459 TI - Polyacetal rod fixation of fractures in osteoporotic bone. A preliminary report T2 - The Journal of Bone & Joint Surgery British Volume VL - 73-B IS - 3 PY - 1991 SP - 506 EP - 508 ER -