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ObjectiveTo explore the clinical use and effection of the porous metal tantalum rod in treatment of the osteonecrosis of the femoral head (ONFH). MethodThe clinical data of 15 patients’clinical data were studied retrospectively from September 2008 at our hospital. In accordance with the International Bone Cycle Research Council (Association Research Circulation Osseous, ARCO) classification of ONFH disease stage I, II phase patients; application of porous tantalum rod in treatment of early ONFH patients 15 patients (15 hips), left seven hip, right hip 8. All patients suffering from hip surgery proactive prior orthotopic, frog-bit X-ray film, line MRI examination; preoperative Harris score 72-89 points, an average of 76.8 points.3,6,12,18 months after follow-up, clinical evaluation, including:Harris score, X-ray films and bone ingrowth condition assessment of the situation.Results15 patients were evaluated before and after 3,6,12 and 18 months, Harris score for 22 analysis showed that preoperative Harris score and postoperative 3,6,12,18-month ratings were significant differences between the.X-ray films by phases before and after surgery compared to after 12 months, two cases of phase II B progressed to II C period, after 18 months, two cases of the progress of phase III II C period, the femoral head collapse, need to line THA.Stage I disease treatment to improve the rate of the best, II A period, II B followed by a view to improving the rate of, II C a view to improving the lowest rate, no change and increase the patients were steroid-induced ONFH cases.Conclusion1.Porous tantalum implant can increase the bar reflect the hip pain. function, range of indicators Harris score;2、Good biocompatibility of porous tantalum rod, tantalum rod can be seen with spongy bone interface bone ingrowth;3、OnⅠ-ⅡC of lesions can prevent the collapse of femoral head;4、The method of the IIC on the efficacy of femoral head necrosis of the poor should be carefully considered.
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