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Monday, May 17, 2010

Treatment of Nonunion of Femoral Inferior Segment by Antegrade Com Pressive Interlocking Intramedullary Nail and Memory Connector

C. Zhang, S. Xu, Changhai Hospital, The Second Military Medical University, Shanghai, China; Q. Fu, Changhai Hospital,Shanghai, Shanghai, China; X. W. Liu, Second Military Medical University,, China, Shanghai, China

objective: To analvze by a retrospective study ot the treatment of nonunion of femoral inferior segment with antegrade compression interlocking nails combined with swan-like memory connector(SMC). Methods: 18 patients with nonunion of femoral inferior segment were treated with open reduction and internal fixation, the nonunion was fixed with antegrade compression interlocking nails and SMC to prov ide rigid fixation and the advantage of bone grafting of SMC.Iliac autografts were used.The nonunion space was padded with iliac blocks or spanned by iliac grafts just like splints, and the spatium between SMC and bone was filled with scum of spongy bone,in order to full arouse the inductive anti conductive efects of the graft. Continuous passive motion was advised shoflly after operation.The average time from the surge~ to the latest followed-up was 1 8 months(ranging from 12 to 48 months). Results: By the time of the latest follow-up examination,all 1 8 cases of nonunion had healed.The average time was 5 months (3 to 6 months).The arc of knee motion improved from 84 degrees preoperatively(30 to 1 35 degrees)to 1 0 1 degrees postoperatively(75 to 135 degrees).According to the Shelbourne knee rating system,excellent and good results were achieved in 16 cases (88.9% ). Conclusion :Antegrade compression interlocking nails and SMC combined with iliac autograft can provide an eficacious techlnique for treatment of nonunion of femoral inferior segment.
[KEY WORDS]  Nonunion of femoral inferior segmentG Antegrade compressive interlocking intramedullary nailGSwanlike memoD,connectorG Bone graft

Summary: To analvze by a retrospective study ot the treatment of nonunion of femoral inferior segment with antegrade compression interlocking nails combined with swan-like memory connector(SMC).