1052 THE JOURNAL OF BONE AND JOINT SURGERY Y. Matsui, MD, Research Fellow
H. Kawabata, MD, Director
Department of Orthopaedic Surgery, Osaka Medical Centre and Research
Institute for Maternal and Child Health, 840 Murodo-cho Izumi, Osaka
594-1101, Japan N. Yasui, MD, Associate Professor
T. Kimura, MD, Associate Professor
N. Tsumaki, MD, Assistant Professor
T. Ochi, MD, Professor and Chairman
Department of Orthopaedic Surgery, Osaka University Medical School,
2-2 Yamadaoka, Suita, Osaka 565-0871, Japan. Correspondence should be sent to Dr N. Yasui.