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�������պ����ѧѧ�� 2004, Vol. 30 Issue (09) :850-854    DOI:
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������1, ������2, ������1, ����1*
1. �������պ����ѧ ��е���̼��Զ���ѧԺ, ���� 100083;
2. ������ˮ̶ҽԺ ���˹ǿƣ� ���� 100035
Error analysis of a computer-assisted orthopedic system for distal locking of intramedullary nail
Liu Wenyong1, Wang Manyi2, Wang Tianmiao1, Hu Lei1*
1. School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics�� Beijing 100083, China;
2. Department of Traumatology and Orthopedics, Beijing Jishuitan Hospital, Beijing 100035, China

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Abstract�� To solve the distal locking difficulty arising from the bending and twisting of the intramedullary nail axis while the nail implanting in long bone fracture therapy, an image-guided computer-assisted orthopaedic surgery system was introduced. To evaluate the error distribution of the system, a special error analysis method was designed based on the character of the system structure and its geometric model. The concrete calculation and statistics of error distribution were embodied with the assistance of the Monte-Carlo method. The system performance was also evaluated in order to derive the theoretic guarantees for further optimizing the system. The idea of this error analysis method can be used for the similar systems with complicated mathematical models.
Keywords�� computer vision   Monte-Carlo method   computer-assisted surgery   intramedullary nail     
Received 2003-06-13;


About author: ������ (1975-),��,�ӱ�������,��ʿ��,wyliu@263.net.
������, ������, ������, ����.������������ڶ�Զ������ϵͳ������[J]  �������պ����ѧѧ��, 2004,V30(09): 850-854
Liu Wenyong, Wang Manyi, Wang Tianmiao, Hu Lei.Error analysis of a computer-assisted orthopedic system for distal locking of intramedullary nail[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2004,V30(09): 850-854
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