Tantalum Rod Implantation Surgery And Core Decompression With Bone Graft Clinical Study Of Treatment Of Early Osteonecrosis

Purpose of the study：By observing the porous tantalum metal rod implanted inpatients after clinical manifestations and the Harris hip score, and explore the poroustantalum rod implantation surgery the early ONFH short-term clinical effects, to assess thesurgery.Methods：Select patients with non-traumatic ONFH admitted to the First AffiliatedHospital of Shandong University of Traditional Chinese Medicine in August2010toDecember2011(ARCO, stage Ⅰ and Phase Ⅱ) in29patients (42hips) were male and18cases (28hips)11cases (14hips), aged29to59years (mean38.4years). On12cases (17hips) an average age of35.7years, the use of porous tantalum metal rod implanted in thesurgical treatment,17cases (25hips) with core decompression with bone graftingtreatment. Records of two surgical mode of operation time, hospital days, according to thepreoperative and postoperative Harris hip score in patients with short-term clinical andimaging manifestations observed femoral head collapse survival time.Rensults：All patients were postoperative follow-up of18months (mean13.90months). Experimental group preoperative Harris score was61.11points (61.11±11.74),the control group preoperative Harris score was65.84points (65.84±12.73), nosignificant difference between the two groups of patients age, sex and preoperative Harriship score (P>0.05). The experimental group operative time was significantly shorteroperative time in the control group (P=0.00<0.05), with statistical significance. Noloosening, fracture, and complications such as postoperative observation and follow-upperiod, two sets of preoperative Harris hip score was no significant difference, andpostoperative Harris hip score than before surgery were significantly higher (P <0.05), the porous tantalum metal rods implanted in postoperative Harris hip score of85.06points(85.06±10.58) was significantly higher than78.30points, core decompression and bonegraft group (78.30±8.53), increased by8.6%, data significant difference was statisticallysignificant (P=0.040<0.05). Imaging, the porous tantalum rod implantation group anaverage of13.33months of follow-up time, the observed0Hip collapsed, the averagesurvival rate was100%, core decompression and bone graft group observed an average of14.29months of follow-up time to4hip collapse, the average survival rate was85.2%.Log-Rank analysis showed P=0.101>0.05, two sets of survival rates in an average of13.33months of follow-up no significant difference.Conclusion：Porous tantalum rod implantation with core decompression and bonegrafting treatment early ONFH have some effect, but significant improvements in theporous tantalum metal rod implantation of hip joint function the early of ONFH (ARCO,stage Ⅰ and Phase Ⅱ)and the surgical trauma, faster recovery, better effect thecharacteristics of the short term, but delay the collapse of the femoral head, and promotethe role of necrosis repair takes longer, larger studies need to be further explored.