Revision arthroplasty facilitated by ultrasonic tool cement removal. An evaluation of whole bone strength in a canine model.
作者： John J. Callaghan , Steven H. Elder , Steven K. Stranne , Chris F. Fulghum , Anthony V. Seaber
DOI: 10.1016/S0883-5403(06)80070-7
关键词: Surgery 、 Ultrasonic sensor 、 Medicine 、 Bone cement 、 Femur 、 Ultrasound 、 Reduction (orthopedic surgery) 、 Biomedical engineering 、 Canine model 、 Cement 、 Biomechanics
摘要: Ultrasonic driven tools have been developed to facilitate the removal of bone cement during revision arthroplasty. The effect on whole strength by ultrasonic was examined in a canine femur model. Paired, fresh-frozen femora were divided into two groups. In group A, one from each pair subjected extraction with tools. B, manual extraction. Contralateral served as controls determine intact femora. Torsional fractures produced using servocontrolled hydraulic testing machine (Minneapolis Testing System, Minneapolis, MN). Maximum torque, maximum angle, and energy capacity failure determined. Results recorded reduction percent value tested specimen versus contralateral control. When comparing control femur, there no statistical differences ultimate torque (P = .83), angle .89), .74) analysis variance. addition, significant between tool removal. authors conclude that this model, ultrasonically has adverse effects strength.
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