The Clinical Study On Bicontact Artificial Hip System In The Treatment Of Advanced Hip Disease

Objective: Through observing the clinical and radiological results of the use ofBicontact cementless hip system in the treatment of advanced hip disease, to provide ascientific and objective basis for better clinical application of the system and to furtherexplore the surgical technique and the preventive measures of complications of total hiparthroplasty.Methods: Selecting the case of applying Bicontact cementless hip system in patientswith primary total hip replacement surgery in Joint orthopedic of Shandong TraditionalChinese Medicine Hospital, period from March2012to March2013, all patients werefollow-up before surgery and the first3months,6months,12months and24months aftersurgery, the application of the Harris hip score system to analyze the clinical effects ofsurgery and radiologic follow-up assessment based on each hip standard image, to observethe prosthesis and bone interface contact, as well as whether there occurred prosthesisdisplacement or postoperative complications.Results: The actual results obtained follow-up,30patients (36hips), minimumfollow-up time was12months, the longest was24months, with an average of15months.Harris Average score from preoperative41.30±10.05points, up to12months after surgery,95.97±2.26points, paired design data by SPSS17.0statistical software t-test analysis wasP <0.01, indicates there was a significant difference in scores before and after12monthscompared with the preoperative Harris average score improved significantly. Hip X rayshowed bone structure was normal in all patients, and femoral acetabular prosthesis ingood position, no shift and sink, no radiolucent lines around the prosthesis, prostheticacetabular valgus angle and anteversion after measurements are within the normal range,the follow-up period did not change, between acetabular prosthesis with acetabular bone ingro wth good proximal femoral prosthesis1/3of the femur in close conjunction withbone ingrowth good, no osteolysis occurs. Except one patient periprosthetic fracturesparallel fixation due to traffic injuries occur in the14months after the addition, Harrisscore grading follow-up results of the remaining patients were excellent.Conclusion: The short-term clinical results of using Bicontact cementless hip systemin patients with advanced hip disease were satisfied. It can improve the quality of life,skilled surgical technique, to take full advantage of functional exercise determines thesuccess of the surgery.