TY - JOUR AU - CALDER, S. J. DO - doi:10.1302/0301-620X.79B4.0790695 UR - https://doi.org/10.1302/0301-620X.79B4.0790695 TI - Author’s reply T2 - The Journal of Bone & Joint Surgery British Volume VL - 79-B IS - 4 PY - 1997 SP - 695 EP - 695 ER -