The Early Clinical Follow-up Research Of Using The Foutrh Generation Ceramic Prosthesis In Total Hip Arthroplasty

Objective:Through the application of the fourth generation ceramic prosthesis in total hipmlhroplasty short-term follow-up study of patients to evaluate its short-term clinical effects.Methods:November2011-2014in June, inpatient surgery in our hospital, diagnosed by imaging,76cases using fourth-generation ceramic total hip prosthesis in patients, atfer exclusion ofthe remaining eight cases were lost,68cases with complete data. Of which39males and29females, aged22-63years, mean age42.5years, a total of92hips (hips24cases,44cases ofa single hip). All patients are using the fourth generation ceramic total hip prosthesisunderwent total hip arthroplasty. All cases of primary total hip arthroplasty, some of thepatients (six cases) having bilateral total hip arthroplasty by stages. All patients underwentpreoperative routine double hip examination, imaging studies, Hariss score. Postoperativefollow-up of patients to understand the activity of the hip, hariss scores, complications andpatient satisfaction, etc., and compare the last patient imaging technique, using Greun femurpartition and Delee-Chanley acetabular partition to evaluate, heterotopic ossification Brookerclassification method using classification.Results:68patients were followed up for6-36months, ranging from an average of21months.Hariss preoperative score of18-52points, an average of35points, after the last follow-uphariss score is95-98, with an average96.5points, preoperative and postoperative scoreshariss last follow-up was statistically significant (p <0.05). All patients in the preoperativeand post-operative had no neurovascular injury, thromboembolism, infection, implantdislocation, periprosthetic fracture and obviously lower limb shortening, the last X-rayexamination showed well-fixed prosthesis position. Without bright line, bone dissolution,heterotopic ossification and loosening, prosthesis and other signs of fragmentation. Onepatient had postoperative hip abnormal sound. Without making any disposal，about a yearafter the disappearance of abnormal sound. By preoperative and postoperative Harris hip score, duration of postoperative pain, complications, satisfaction and radiographic contrast,excellent rate of98.53%treatment effect, postoperative hip function be greatly improved.Conclusions:The fourth generation of nano-composite ceramic prosthesis has a good short-termclinical efficacy, for its ultra-hardness, toughness, wear resistance and stability of thedecision, among them，the total hip arthroplasty using large diameter ceramic femoral headprosthesis has many theoretical advantages, such as greater hip joint，lower likelihood ofdislocation, may improve the patient’s proprioception, etc..The risk of postoperative qualityof life has been significantly improved, but also for the young, patients with active volumeprovides an ideal type of prosthesis. The occurrence of abnormal sound was1.09%, and themechmism needs further study.